API documentation
With the Do4U API you use the same tools as on the website from your own software: summarise, compare, support replies, alt texts, rewrite and translate. Every request is processed on our own servers in Poland, EU.
Base URL: https://do4u.eu/api/v1
OpenAPI 3.1 description (JSON) – Machine-readable description of this API for code generators and tools such as Postman or Insomnia. No key needed.
Authentication
Create a key under API keys in your account. Send it with every request in the header Authorization: Bearer <key> (or X-API-Key: <key>). Keep the key secret and never put it into a web page. You can revoke a key at any time.
How it works
Jobs run asynchronously. You create a job and get its id at once (HTTP 202). Then you fetch the job until its status is done or failed. Ask every 2 to 5 seconds; most jobs take a few seconds.
Endpoints
| GET | /tools | Tools, options and your input limits |
| GET | /balance | Your credit balance |
| POST | /jobs | Create a job (JSON, or multipart/form-data with an image file) |
| GET | /jobs/{id} | Status and result of a job |
| DELETE | /key | Revoke the key you send with this request, for example when an integration is disconnected. Jobs already created still finish. |
| POST | /key/revoke | The same as DELETE /key, for clients that can only send GET and POST. |
Example
Create a job, then fetch the result:
curl -X POST https://do4u.eu/api/v1/jobs \
-H "Authorization: Bearer d4u_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"tool": "summarize", "text": "...", "options": {"length": "short"}, "language": "en"}'
HTTP/1.1 202 Accepted
{"id": "8f1c0b6a...", "tool": "summarize", "status": "queued", "model": "do4u-standard",
"credits_estimate": 1, "links": {"self": "https://do4u.eu/api/v1/jobs/8f1c0b6a..."}}
curl https://do4u.eu/api/v1/jobs/8f1c0b6a... -H "Authorization: Bearer d4u_YOUR_KEY"
{"id": "8f1c0b6a...", "tool": "summarize", "status": "done", "model": "do4u-standard", "credits_estimate": 1,
"result": {"summary": "...", "key_points": ["...", "..."]}, "credits": 1,
"notice": "AI-generated, please check before use."}
curl -X POST https://do4u.eu/api/v1/jobs -H "Authorization: Bearer d4u_YOUR_KEY" \
-F tool=alt_text -F language=de -F "text=Product page: hiking boots" -F image=@photo.jpg
Request fields for POST /jobs
| tool | Name of the tool, see the table below. Required. |
| text | Input text. For compare: text A. For alt_text: optional page context. |
| text_b | Text B (compare only). |
| url | Public web page to read instead of text (summarize, accessibility_check). |
| html | HTML of a page to check (accessibility_check), up to 300,000 characters. |
| focus_keyword | Optional focus keyword for seo_meta. Without target, seo_meta writes in language. |
| faq | Optional FAQ snippets (support_reply only). |
| questions | Optional for seo_meta, content_brief and faq_schema: frequent visitor questions as a list of texts or {"text": ..., "count": n} (up to 50, at most 20 are used). faq_schema answers them first if the source answers them; visitor_questions in the result says what happened to each. |
| image | Image for alt_text: file field in multipart/form-data, or base64 / data URI in JSON. JPG, PNG, WebP or GIF, up to 5 MB. |
| image_url | Optional for alt_text instead of image: public address of the image (http or https; JPEG, PNG, WebP or GIF; at most 5 MB). Do4U loads it once in the background. If that fails, the job fails with error image_unavailable and costs nothing. |
| options | Object with options of the tool, for example {"length": "short"}. |
| language | Language of the result and notes: en, de or pl. Default en. For translate, the target language is the option target. |
| no_store | true: the input is deleted right after processing and the result after the first retrieval. |
| brand_voice | Optional: false switches your brand voice off for this job (default: the brand voice applies if you have set one). |
| ai_label | Optional: true shows the visible note "Marked as AI-generated" with the result in the web interface, false hides it. Default: the setting in your account. The machine-readable AI label is always in the result and cannot be switched off: the fields ai_generated and generator, an HTML comment in HTML results, ai_notice for image descriptions. ai_generated is false if the result comes from automatic checks only. |
| callback_url | Optional: public https address that gets a signed POST when the job is finished (see Webhooks). |
| render_js | Optional: true loads the page with JavaScript first (pages that build their content in the browser; tools that read a url). Costs the render surcharge only if the page was really loaded this way; the result field render says what happened. |
| no_cache | Optional: true always starts a new AI job. Without it, a finished and still stored result of your account (or workspace) with the same tool, options and input is reused: the job is done at once, from_history is true and it costs 0 % of the credits of the original. Never with no_store, never for a url. |
| allow_same_language | Optional for translate, translate_html and translate_file: true translates even if the text already is in the target language. Without it such a job is rejected with same_language (400) – only when the check is sure. |
Repeat requests safely (Idempotency-Key)
Send the header Idempotency-Key with POST /jobs, for example a random UUID for each job (1 to 255 printable ASCII characters). If the connection breaks and you send the same request again with the same Idempotency-Key and the same API key within 24 hours, you get the same answer again: the same job, no second job and no second charge. The answer then has the header Idempotent-Replayed: true. Use a new key for every new job. If you send the same key with a different request, you get 422 idempotency_conflict. Errors are not stored: after an error you can send the request again with the same key.
curl -X POST https://do4u.eu/api/v1/jobs \
-H "Authorization: Bearer d4u_YOUR_KEY" \
-H "Idempotency-Key: 5f0c2a8e-7d1b-4c3a-9e2f-1b6d8a4c0e77" \
-H "Content-Type: application/json" \
-d '{"tool": "summarize", "text": "..."}'
Tools and options
| Tool | Inputs | Options (first value is the default) | Result fields | Price |
|---|---|---|---|---|
| moderate_commentHozzászólások ellenőrzése spamre | text | – | classification, reason, suggestion, action, note | általában 1–3 credit |
| document_htmlDokumentumok átalakítása HTML-lé | image, pdf, text | page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | html, plain_text, notes, page, note | általában 2–3 credit |
| image_textKépbe égetett szöveg keresése | url | image_index: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | html, plain_text, notes, images, image_index, coverage, note | általában 2–3 credit |
| pdf_accessibilityPDF akadálymentességének ellenőrzése | – | checks, pages, truncated, repaired, note, convert_url | általában 1–2 credit | |
| summarizeÖsszefoglalás | text, url | length: medium | short | long | summary, key_points | általában 1–3 credit |
| compareÖsszehasonlítás | text, text_b | focus: overall | facts | tone | seo | summary, similarities, differences | általában 1–3 credit |
| support_replyÜgyfélszolgálati válasz | text, faq | tone: friendly | neutral | formal | reply, concerns, questions | általában 1–3 credit |
| alt_textAlternatív szövegek | image, text, filename, image_url | – | alt, caption, description, filename, filename_base, extension, language, alt_length, alt_max, alt_status, caption_length, caption_max, caption_status | általában 2–3 credit |
| rewriteÁtfogalmazás | text | style: simpler | shorter | more_formal | more_casual | more_persuasive | easy_to_read | text, changes, language, style_label, readability, easy_check, easy_note, review_status, review_limit, diff | általában 1–4 credit |
| accessibility_checkAkadálymentesség-ellenőrzés | url, html | – | summary, page, counts, findings, checks, readability, note | fixed 3 credits per task |
| seo_metaSEO-cím és leírás | url, text, focus_keyword, questions | target: en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | variants, current, focus_keyword, limits, keywords, note | fixed 1 credit per task |
| translate_htmlHTML fordítása | html | target: en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | html, segments, check, glossary, notes, note, review_status, alignment | általában 1–4 credit |
| product_descriptionTermékleírások | text | tone: neutral | friendly | persuasive | formallength: medium | short | longchannel: shop | marketplacetarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svmeta_description: no | yes | products, language, detected_language, channel, format, limits, counts, check, note | általában 1–3 credit |
| headlinesCímsorok és tárgysorok | text | kind: page | newsletter | adtone: neutral | friendly | persuasive | formalcount: 5 | 3 | 8target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | kind, fields, variants, limits, counts, enough, report, language, detected_language, note | fixed 1 credit per task |
| faq_schemaGYIK és séma-jelölés | url, text, questions | type: faq | organization | localbusiness | productcount: 8 | 5 | 10target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | type, kind, jsonld, html, valid, faq, fields, checks, counts, unverified, dropped, existing, existing_errors, existing_same, page, language, detected_language, notes, note, visitor_questions | fixed 2 credits per task |
| content_briefTartalmi brief | text, audience, questions | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | title, title_length, title_max, title_status, goal, intent, outline, questions, length, markdown, counts, dropped, limits, language, detected_language, notes, note | általában 1–2 credit |
| review_replyVálaszok az értékelésekre | text, company | stars: 0 | 1 | 2 | 3 | 4 | 5platform: general | google | trustpilot | booking | tripadvisor | airbnb | yelp | app_store | google_playtone: friendly | neutral | formalcount: 3 | 2target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | assessment, variants, limits, platform, stars, tone, counts, dropped, enough, report, hints, checks, language, detected_language, note | általában 1–2 credit |
| social_postsKözösségi posztok egy cikkből | url, text | channels: all | linkedin | facebook | instagram | linkedin+facebook | linkedin+instagram | facebook+instagramtone: friendly | neutral | persuasive | formal | casualvariants: 1 | 2 | 3target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | channels, posts, limits, counts, enough, report, link, link_in_bio, language, detected_language, source, notes, note | általában 1–3 credit |
| explain_termsSzakszavak magyarázata | url, text | level: simple | general | expertexamples: no | yestarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | terms, level, language, detected_language, source, text_length, text_clipped, counts, dropped, adjusted, limits, other_candidates, checks, markdown, html, notes, note | általában 1–3 credit |
| extract_dataAdatok kinyerése | url, text | types: all | hours | prices | hours+prices | addresses | hours+addresses | prices+addresses | hours+prices+addresses | events | hours+events | prices+events | hours+prices+events | addresses+events | hours+addresses+events | prices+addresses+events | hours+prices+addresses+events | contact | hours+contact | prices+contact | hours+prices+contact | addresses+contact | hours+addresses+contact | prices+addresses+contact | hours+prices+addresses+contact | events+contact | hours+events+contact | prices+events+contact | hours+prices+events+contact | addresses+events+contact | hours+addresses+events+contact | prices+addresses+events+contacttarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | kinds, hours, prices, addresses, events, contact, counts, empty, unverified, dropped, limits, source, language, detected_language, notes, note | általában 1–3 credit |
| redirect_planÁtirányítási terv | old_urls, new_urls, old_domain, new_domain | ai: yes | no | old_base, new_base, mappings, counts, unused_new, invalid, dropped, ai, legend, language, domain_ignored, notes, note | általában 1–3 credit |
| contrast_checkSzínkontraszt-ellenőrzés | colors | level: aa | aaatext_size: normal | large | colors, pairs, counts, invalid, settings, palette_check, legend, language, note | általában 1–2 credit |
| language_levelNyelvi szint (A1–C1) | text | level: B1 | A1 | A2 | B2 | C1target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svkeep_terms: no | yes | text, changes, level, language, detected_language, translated, summary, within_guideline, measures, over_guideline, over_count, readability, content, kept_terms, checks, hints, note | általában 1–4 credit |
| llms_txtllms.txt-generátor | url | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | name, summary, details, file, filename, sections, counts, pages_read, read, existing, dropped, hints, language, detected_language, notes, note | általában 1–3 credit |
| internal_linksBelső linkek | text, pages, sitemap_url, page_url | – | links, text, text_is_html, counts, pages, dropped, ai, limits, language, detected_language, timeout, notes, note | általában 1–3 credit |
| outdated_contentElavult tartalom | url, text, html, reference_date | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | reference_date, reference_date_given, findings, summary, counts, source, dropped, ai, limits, language, detected_language, timeout, notes, note | általában 1–3 credit |
| inclusive_languageBefogadó és közérthető nyelv | text | scope: both | exclusion | complexitygender: not_prescribed | neutral | pair | star | colon | brand_voice | language, scope, gender, summary, counts, findings, candidates, measures, applied, changed, revised_text, diff, dropped, checks, hints, note | általában 1–3 credit |
| review_analysisÉrtékelések elemzése | text | focus: all | criticismtarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | format, columns, language, detected_language, focus, counts, selection, stars, period, languages, languages_unknown, personal_data, themes, praise, criticism, page, faq, cited, dropped, limits, hints, notes, note | általában 1–3 credit |
| ai_visibility_checkAI-láthatósági ellenőrzés | url, text, html, topic, questions | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | coverage, coverage_level, counts, questions, faq_questions, sections, qa_on_page, structured_data, llms_txt, robots_txt, readability, hints, source, topic, dropped, ai, limits, files, language, detected_language, note, how | általában 1–3 credit |
| events_calendarEsemények naptárba | url, text, time_zone, year | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | events, counts, unverified, dropped, timezone, year, today, limits, ics, jsonld, filename, source, language, detected_language, notes, note | általában 1–3 credit |
| product_photoTermékfotóból szöveg | image, image_url, text, languages | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svcategory_list: google | free | language, detected_language, title, title_length, title_max, title_status, short_description, short_length, short_max, short_status, description, description_length, description_max, description_status, bullets, bullets_count, bullets_max_length, bullets_status, alt_text, alt_length, alt_max, alt_status, category_group, attributes, attribute_sources, attribute_list, translations, removed, hints, claims_checked, claims_unchecked, counts, limits, notes, category_list, jsonld, jsonld_check, product_json, check, note | általában 2–3 credit |
| chart_descriptionDiagramok és infografikák leírása | image, image_url, text | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svlength: normal | short | chart_type, title, language, detected_language, alt, alt_length, alt_max, alt_status, description, description_length, description_max, description_status, description_size, axes, data, data_rows, table, data_csv, html, image_text, pie_check, hints, counts, limits, notes, verify_numbers, check, note | általában 2–3 credit |
| design_feedbackDizájnvisszajelzés képernyőképből | image, image_url, text | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svdevice: auto | phone | desktop | language, detected_language, device, summary, findings, image, image_basis, counts, removed, hints, limits, notes, estimate, check, note, text, markdown | általában 2–3 credit |
| job_ad_checkÁlláshirdetés-ellenőrzés | url, text, html | jurisdiction: auto | eu | de | pltarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | language, detected_language, jurisdiction, title, checklist, counts, pay, structure, length, findings, titles, summary, source, text_cut, dropped, ai, hints, note | általában 1–3 credit |
| green_claims_checkKörnyezetvédelmi állítások ellenőrzése | url, text, html | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | findings, summary, counts, source, dropped, ai, limits, legal, language, detected_language, timeout, notes, note | általában 1–3 credit |
| third_party_scanKülső szolgáltatások ellenőrzése | url, html | – | url, host, page_from, static_only, counts, consent, groups, cookies, legend, notes, check, note, truncated, checked_at | általában 1–2 credit |
| broken_link_checkHibás linkek ellenőrzése | url | resources: yes | noexternal: no | yes | language, url, host, counts, broken, more_broken, redirects, more_redirects, soft, start_soft, suggestions, not_reached, limits, note, truncated | általában 1–2 credit |
| duplicate_content_checkDuplikált tartalom ellenőrzése | url, text | – | language, mode, url, host, summary, counts, findings, passed, hints, thresholds, pages, limits, note, truncated | általában 1–2 credit |
| hreflang_checkhreflang-ellenőrzés | url | – | language, url, counts, findings, pages, matrix, annotations, legend, limits, note | általában 1–2 credit |
| ai_robots_txtAI-crawlerek a robots.txt-ben | site_url, robots_txt, groups, crawlers | – | file, file_complete, ai_section, crawlers, counts, source, existing, changes, checks, notes, legend, sources, verified_on, language, note | általában 1–2 credit |
| faq_from_supportGYIK ügyfélszolgálati üzenetekből | text, faq_url | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | format, input_kind, columns, language, detected_language, languages, counts, selection, faq_page, personal_data, topics, gaps, cited, dropped, limits, placeholder, hints, notes, note, export | általában 1–3 credit |
| price_display_checkÁrfeltüntetés-ellenőrzés | url, text, html | ai: yes | nojurisdiction: auto | de | pl | jurisdiction, jurisdiction_auto, jurisdiction_label, source, price, previous_prices, prior_30_days, unit_prices, quantities, discounts, hints, structured, findings, counts, checks, ai, dropped, legal_sources, language, notes, note | általában 1–3 credit |
| form_text_checkŰrlapszövegek | url, html, error_messages | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svtone: neutral | friendly | formal | language, detected_language, tone, required_word, forms, errors, counts, criteria, summary, source, dropped, ai, hints, note | általában 1–3 credit |
| newsletter_checkHírlevél-ellenőrzés | html, eml, text, subject, preheader | target: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | language, detected_language, input, subject, preheader, checklist, counts, links, links_total, images, eml, pairs, improvements, text_cut, dropped, ai, hints, note | általában 1–3 credit |
| privacy_policy_matchAdatvédelmi tájékoztató ellenőrzése | website_url, pages, policy_url, policy_text | – | website, pages, policy, not_in_policy, not_found, matched, categories, counts, dropped, ai, limits, legal, notes, check, note, checked_at | általában 1–3 credit |
| social_card_checkMegosztási kártya ellenőrzése | url | – | language, url, counts, preview, findings, tags, images, snippet, guidance, limits, note | általában 1–2 credit |
| image_performance_checkKépellenőrzés | url | – | language, url, counts, total, formats, lcp, page_findings, summary, images, more_images, legend, limits, note, truncated | általában 1–2 credit |
| ai_transparency_checkAI-átláthatósági ellenőrzés | url, text, html | chatbot: auto | yes | nomedia: unknown | no | realistic | artistic | illustrativearticles: unknown | no | unreviewed | reviewedtarget: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | language, detected_language, source, answers, checklist, detected, notices, summary, counts, dropped, ai, legal, hints, note | általában 1–3 credit |
| structured_data_checkStrukturált adatok ellenőrzése | url, html | – | language, url, input, counts, formats, findings, items, rules, visible, limits, truncated, note | általában 1–2 credit |
| legal_notice_checkImpresszum-ellenőrzés | url, text, html | ai: yes | nojurisdiction: auto | de | pl | jurisdiction, jurisdiction_auto, jurisdiction_basis, jurisdiction_label, source, entity, items, extra, counts, ai, dropped, legal_sources, language, notes, note, truncated | általában 1–3 credit |
| glossary_builderSzószedet készítése | url, text, html, languages | source: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svmax_pages: 1 | 2 | 3 | 5 | 10 | language, language_name, language_source, targets, target_names, items, existing, counts, pages, reading, source, text_cut, dropped, glossary, hints, note, export | általában 1–3 credit |
| local_business_checkCégadatok ellenőrzése | url, text | ai: no | yes | language, url, host, mode, country, table, findings, counts, structured, suggestion, handover, pages, failed, not_reached, limits, ai, dropped, notes, note | általában 1–2 credit |
| consent_preload_checkBetölt valamit a hozzájárulás előtt? | url | – | url, final_url, host, loaded, counts, timing, consent, groups, cookies, storage, notes, check, law, note, truncated, checked_at | általában 1–2 credit |
| ai_literacy_policyAI-jártassági szabályzat (AI Act 4. cikk) | text, uses, roles, data, company_name | company_size: 1-9 | 10-49 | 50-249 | 250+sector: general | retail | services | crafts | health | finance | education | public_sector | media | it | manufacturing | tourism | socialreview_months: 12 | 6 | 24language: auto | en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | language, title, sections, training, record_columns, markdown, text, profile, counts, dropped, legal, hints, note | általában 1–2 credit |
| withdrawal_button_checkElállási gomb ellenőrzése | url, text, html | ai: yes | nojurisdiction: auto | de | pl | eusubscriptions: auto | yes | no | jurisdiction, jurisdiction_auto, jurisdiction_basis, jurisdiction_label, law, source, subscription, items, candidates, counts, ai, dropped, legal_sources, language, notes, note, truncated | általában 1–3 credit |
| product_safety_checkTermékoldal-ellenőrzés (GPSR) | url, text, html | market_language: auto | bg | cs | da | de | el | en | es | fi | fr | hr | hu | it | lt | nl | pl | pt | ro | sk | sl | sv | language, market_language, market_language_label, market_basis, page_language, source, product, manufacturer_seat, items, counts, dropped, ai, hints, notes, legal, legal_sources, note | általában 1–3 credit |
| website_checkWeboldal-ellenőrzés | url | scope: short | full | score, categories, findings, counts, snippet, llms_txt, summary, actions, note | fixed 5 credits per task |
| translateFordítás | text | target: en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | sv | translation, notes, review_status, alignment | általában 1–4 credit |
| proofreadKorrektúra | text | text_language: auto | en | de | pl | fr | es | it | pt | nl | cs | sk | uk | ru | bg | ro | hu | sv | da | fi | tr | el | ar | fa | he | hi | zh | ja | ko | th | text, html, language, identical, summary, counts, changed_share, changes, notes, beta, note | általában 1–4 credit |
| translate_fileNyelvi fájlok | text | target: en | de | pl | fr | es | it | nl | cs | sk | uk | bg | da | el | fi | hr | hu | lt | pt | ro | sl | svscope: auto | all | missingline_endings: lf | crlf | lf_no_final_newline | crlf_no_final_newline | format, target, filename, mime, file, entries, counts, flagged, preview, check, notes, note | általában 5–8 credit |
Job status
queued and running: still working (position and wait_seconds help you to wait). done: result contains the fields of the tool. failed: nothing was charged (credits is 0); error.code names the reason: address_blocked (Do4U does not open this address, for example a private or internal one; send the text or HTML instead), input_too_large (shorten the input), image_unavailable or job_failed. expired: the result is no longer stored.
Webhookok
Add hozzá a "callback_url" mezőt a POST /api/v1/jobs híváshoz, és a Do4U aláírt POST-kérést küld (job.finished esemény az állapottal, a kreditekkel és az eredmény hivatkozásával - nem magával az eredménnyel), amint a feladat elkészült. Csak nyilvános címek a 80-as vagy 443-as porton; legfeljebb 6 alkalommal próbálkozunk újra, növekvő szünetekkel.
Példa: hozz létre egy feladatot callback_url-lel – és a kérés, amelyet a Do4U erre a címre küld, amikor a feladat elkészült:
curl -X POST https://do4u.eu/api/v1/jobs \
-H "Authorization: Bearer d4u_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"tool": "summarize", "text": "...", "callback_url": "https://example.com/do4u-hook"}'
POST /do4u-hook
Content-Type: application/json
X-Do4U-Event: job.finished
X-Do4U-Signature: t=1793180000,v1=6b1f...
{"event":"job.finished","id":"8f1c0b6a...","tool":"summarize","status":"done","credits":1,
"created":"2026-10-28T10:00:00+01:00","finished":"2026-10-28T10:00:04+01:00","result_url":"https://do4u.eu/api/v1/jobs/8f1c0b6a..."} Ellenőrizd az X-Do4U-Signature fejlécet: t=<time>,v1=<hex>, ahol v1 = HMAC-SHA256(secret, "<time>.<raw body>"). Utasítsd el a régi időpontokat (pl. 5 percnél régebbieket). A titkos kulcsod whsec_ előtaggal kezdődik, és az API-kulcsok oldalon jelenik meg.
// Node.js: rawBody = the request body exactly as received (string)
const crypto = require('crypto');
function do4uSignatureOk(rawBody, header, secret) {
const t = (header.match(/t=(\d+)/) || [])[1];
const v1 = (header.match(/v1=([0-9a-f]{64})/) || [])[1];
if (!t || !v1 || Math.abs(Date.now() / 1000 - Number(t)) > 300) return false;
const expected = crypto.createHmac('sha256', secret).update(t + '.' + rawBody).digest('hex');
return crypto.timingSafeEqual(Buffer.from(expected), Buffer.from(v1));
}
// PHP
function do4u_signature_ok(string $raw, string $header, string $secret): bool {
if (!preg_match('/t=(\d+),v1=([0-9a-f]{64})/', $header, $m) || abs(time() - (int)$m[1]) > 300) return false;
return hash_equals(hash_hmac('sha256', $m[1] . '.' . $raw, $secret), $m[2]);
}
$ok = do4u_signature_ok(file_get_contents('php://input'), $_SERVER['HTTP_X_DO4U_SIGNATURE'] ?? '', 'whsec_YOUR_SECRET'); credits.low
Amikor egy fiók creditegyenlege a küszöbérték alá csökken, a Do4U egy aláírt POST-ot küld a fiók webhook-címére. Az esemény nem tartalmaz személyes adatot, csak az egyenleget, a küszöbértéket és az időpontot (UTC). A következő csak azután jön, hogy újra érkeztek creditek (vásárlás, havi ingyenes creditek vagy kupon). Az aláírás és a titok ugyanaz, mint a job.finished esetén.
POST /do4u-hook
Content-Type: application/json
X-Do4U-Event: credits.low
X-Do4U-Signature: t=1793180000,v1=6b1f...
{"event":"credits.low","balance":18,"threshold":20,"ts":"2026-10-29T10:00:04Z"} A címet és a küszöbértéket itt állíthatod be: API-kulcsok
n8n
Kész munkafolyamat: egy webhook fogadja a Do4U hívását, ellenőrzi az aláírást, lekéri az eredményt, és átadja a következő lépésednek.
Az n8n-sablon letöltése (JSON)
Sablon, valódi n8n- vagy Make-példányban még nem tesztelve – használat előtt kérlek, teszteld az aláírás-ellenőrzést.
Az n8n-ben: Workflows → Import from file. Ezután add meg a titkos kulcsodat a "Check signature" csomópontban, az API-kulcsodat pedig a "Do4U: get result" csomópontban, aktiváld a munkafolyamatot, és a webhook éles URL-jét használd callback_url-ként. A saját üzemeltetésű n8n-hez az aláírás-ellenőrzéshez a NODE_FUNCTION_ALLOW_BUILTIN=crypto környezeti változó szükséges.
Make
- Add hozzá a Webhooks → Custom webhook modult indítóként, és kapcsold be a "JSON pass-through" és a "Get request headers" lehetőséget a speciális beállításaiban.
- Használd ennek a webhooknak a címét callback_url-ként.
- Ellenőrizd az aláírást: hasonlítsd össze az X-Do4U-Signature fejléc v1 értékét az sha256(t + "." + raw body; hex; a titkos kulcsod) értékkel.
- Add hozzá a HTTP → Make a request modult: GET a result_url címre az Authorization: Bearer <your API key> fejléccel.
- Használd a result mezőt a következő moduljaidban.
Sablon, valódi n8n- vagy Make-példányban még nem tesztelve – használat előtt kérlek, teszteld az aláírás-ellenőrzést.
Receptek: eszközök láncolása
Egy recept 2–4 eszközt futtat egymás után egyetlen munkaként. A „tool” helyett a „recipe” mezőt küldd: vagy egy kész recept nevét, vagy a lépések listáját. A szöveg az első lépésbe kerül; az egyes lépések eredménye a következő lépés szövege. A GET /api/v1/recipes felsorolja a kész recepteket, a használható eszközöket és azt a mezőt, amelyet az egyes eszközök továbbadnak.
curl -X POST https://do4u.eu/api/v1/jobs \
-H "Authorization: Bearer d4u_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"recipe": [{"tool": "summarize", "options": {"length": "short"}},
{"tool": "translate", "options": {"target": "pl"}}], "text": "..."}'
curl -X POST https://do4u.eu/api/v1/jobs \
-H "Authorization: Bearer d4u_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"recipe": "summary_translate_meta", "options": {"target": "pl"}, "text": "..."}' Az összes lépésre egyetlen becslést kapsz (credits_estimate). Ez az összeg az induláskor lefoglalásra kerül. Az egyes lépések után a tényleges felhasználás könyvelésre kerül, a maradék a végéig lefoglalva marad, majd felszabadul. A sikertelen lépés nem kerül semmibe, a többi lépést kihagyjuk, az már elkészült lépéseket pedig felszámoljuk.
HTTP/1.1 202 Accepted
{"id": "3c9e0d1a...", "tool": "recipe", "recipe": null, "status": "queued", "model": "do4u-standard", "credits_estimate": 4,
"steps": [{"n": 1, "tool": "summarize", "credits_estimate": 2}, {"n": 2, "tool": "translate", "credits_estimate": 2}],
"links": {"self": "https://do4u.eu/api/v1/jobs/3c9e0d1a..."}} A GET /api/v1/jobs/{id} megmutatja az összes lépést az állapotával (pending, queued, running, done, failed, skipped), a creditjeivel, egy input_shortened jelzéssel, ha a szöveget a következő eszköz miatt le kellett rövidíteni, és az egyes lépések eredményével, miután a recept véget ért. A no_store beállítással az eredmények csak egyszer jelennek meg. A callback_url egyszer, a recept végén fut le.
GET https://do4u.eu/api/v1/jobs/3c9e0d1a...
{"id": "3c9e0d1a...", "tool": "recipe", "status": "done", "credits_estimate": 4, "credits": 3, "steps_total": 2,
"steps": [{"n": 1, "tool": "summarize", "status": "done", "credits": 1, "result": {"summary": "...", "key_points": ["..."]}},
{"n": 2, "tool": "translate", "status": "done", "credits": 2, "notices": ["input_shortened"], "result": {"translation": "...", "notes": []}}],
"result": {"translation": "...", "notes": []}} GET https://do4u.eu/api/v1/recipes
Errors
Errors always have the same form: {"error": {"code": "...", "message": "..."}}. With 429 and 503 the header Retry-After says how many seconds to wait.
| Code | HTTP | Meaning |
|---|---|---|
| missing_key | 401 | No API key sent. |
| invalid_key | 401 | Key unknown or revoked. |
| rate_limited | 429 | Too many requests in this minute. |
| invalid_json | 400 | Body is not a JSON object. |
| unknown_tool | 400 | No tool with this name. |
| invalid_option | 400 | Unknown option or value. |
| invalid_field | 400 | A field has the wrong type. |
| invalid_language | 400 | language is not en, de or pl. |
| empty_input | 400 | No text or URL. |
| text_b_required | 400 | compare needs text and text_b. |
| input_too_long | 400 | Input longer than your limit. |
| input_too_large | 400 | Input too large for one job: shorten it or split it into several jobs. |
| invalid_url | 400 | URL not allowed or not readable. |
| invalid_image | 400 | Image missing, wrong format or too large. |
| payload_too_large | 413 | Request body larger than 8 MB. |
| insufficient_credits | 402 | Not enough credits. |
| email_not_verified | 402 | Confirm your email address first. |
| daily_limit | 429 | Free daily limit used up (website_check scope short). |
| too_many_open_jobs | 429 | Too many open jobs in your account. |
| package_required | 403 | The tool needs a purchased package. |
| busy | 503 | The queue is full, try again shortly. |
| tool_unavailable | 503 | The tool is not available right now. |
| not_found | 404 | Unknown endpoint or job. |
| method_not_allowed | 405 | Wrong HTTP method. |
| internal_error | 500 | Error on our side. |
| invalid_idempotency_key | 400 | Idempotency-Key is empty, too long or has characters that are not printable ASCII. |
| idempotency_conflict | 422 | This Idempotency-Key was already used with a different request. |
| idempotency_in_progress | 409 | A request with this Idempotency-Key is still running. Wait a moment (Retry-After). |
| idempotency_unavailable | 503 | Idempotency-Key cannot be used right now. Try again later. |
| same_language | 400 | The text already is in the target language (translate tools). Send allow_same_language: true to translate anyway. |
Limits
- 60 requests per minute per key and 120 per account.
- Open jobs at the same time per account: Free 3, Starter 3, Standard 5, Pro 10, for the website and the API together.
- Input: Free 8 000 characters, paid packages 30 000. Lower limits per tool: compare 20 000, alt_text 1 000, translate 12 000 (compare: both texts together).
- API keys: Free 1, Starter 1, Standard 5, Pro 10.
Credits
A new job shows an estimate (credits_estimate); charged is the actual use (credits). Failed jobs cost nothing. Free credits are used first.
Data
Inputs and results are stored for 7 days (Free) or 30 days (paid packages), then deleted. Images are deleted right after processing. Results are AI-generated: please check them before you use them.
Válaszolj e-mailekre a postaládád megváltoztatása nélkül
A Do4U nem üzemeltet postaládát, és soha nem tárolja a postafiókod hozzáférési adatait. Két mód, hogy mégis válaszvázlatokat kapj:
S1 – Sablon n8n-hez vagy Make-hez
- Indító: új e-mail a postafiókodban (IMAP-indító az n8n-ben vagy a Make-ben – a hozzáférési adatok ott maradnak)
- POST /api/v1/jobs a support_reply eszközzel, az e-mail szövegével és no_store: true értékkel
- Várj néhány másodpercet, és kérd le a GET /api/v1/jobs/{id} hívással, amíg az állapot done lesz
- Hozz létre vázlatot a postafiókodban a result.reply szövegével (Gmail- vagy Outlook-modul)
Az n8n-sablon letöltése (JSON)
A Make-ben ugyanezt a forgatókönyvet építsd fel az E-mail (e-mailek figyelése), HTTP (kérés küldése), Sleep és Gmail vagy Outlook (vázlat létrehozása) modulokból.
Fejlesztői bővítmények és webshop-bővítmények
Csomagold ki a ZIP-et, és olvasd el a mellékelt útmutatót. A böngészőbővítményt helyben töltsd be; a webshop-bővítményeket előbb egy tesztshopban próbáld ki. Szükséged van a saját Dev API-kulcsodra. A Shopware jelenleg CLI-t biztosít.