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_commentTarkista kommentit roskapostin varalta | text | – | classification, reason, suggestion, action, note | yleensä 1–3 krediittiä |
| document_htmlMuuta asiakirjat HTML:ksi | 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 | yleensä 2–3 krediittiä |
| image_textEtsi kuviin upotettu teksti | 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 | yleensä 2–3 krediittiä |
| pdf_accessibilityTarkista PDF:n saavutettavuus | – | checks, pages, truncated, repaired, note, convert_url | yleensä 1–2 krediittiä | |
| summarizeTiivistä | text, url | length: medium | short | long | summary, key_points | yleensä 1–3 krediittiä |
| compareVertaa | text, text_b | focus: overall | facts | tone | seo | summary, similarities, differences | yleensä 1–3 krediittiä |
| support_replyAsiakasvastaus | text, faq | tone: friendly | neutral | formal | reply, concerns, questions | yleensä 1–3 krediittiä |
| alt_textVaihtoehtoiset tekstit | 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 | yleensä 2–3 krediittiä |
| rewriteKirjoita uudelleen | 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 | yleensä 1–4 krediittiä |
| accessibility_checkSaavutettavuustarkistus | url, html | – | summary, page, counts, findings, checks, readability, note | fixed 3 credits per task |
| seo_metaSEO-otsikko ja -kuvaus | 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_htmlKäännä HTML | 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 | yleensä 1–4 krediittiä |
| product_descriptionTuotekuvaukset | 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 | yleensä 1–3 krediittiä |
| headlinesOtsikot ja aiherivit | 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_schemaUKK ja schema-merkintä | 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_briefSisältöbriiffi | 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 | yleensä 1–2 krediittiä |
| review_replyVastaukset arvosteluihin | 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 | yleensä 1–2 krediittiä |
| social_postsSomejulkaisut artikkelista | 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 | yleensä 1–3 krediittiä |
| explain_termsSelitä termit | 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 | yleensä 1–3 krediittiä |
| extract_dataPoimi tiedot | 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 | yleensä 1–3 krediittiä |
| redirect_planUudelleenohjaussuunnitelma | 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 | yleensä 1–3 krediittiä |
| contrast_checkVärikontrastin tarkistus | colors | level: aa | aaatext_size: normal | large | colors, pairs, counts, invalid, settings, palette_check, legend, language, note | yleensä 1–2 krediittiä |
| language_levelKielitaso (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 | yleensä 1–4 krediittiä |
| llms_txtllms.txt-generaattori | 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 | yleensä 1–3 krediittiä |
| internal_linksSisäiset linkit | text, pages, sitemap_url, page_url | – | links, text, text_is_html, counts, pages, dropped, ai, limits, language, detected_language, timeout, notes, note | yleensä 1–3 krediittiä |
| outdated_contentVanhentunut sisältö | 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 | yleensä 1–3 krediittiä |
| inclusive_languageOsallistava ja selkeä kieli | 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 | yleensä 1–3 krediittiä |
| review_analysisArvosteluanalyysi | 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 | yleensä 1–3 krediittiä |
| ai_visibility_checkTekoälynäkyvyyden tarkistus | 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 | yleensä 1–3 krediittiä |
| events_calendarTapahtumat kalenteriin | 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 | yleensä 1–3 krediittiä |
| product_photoTuotekuvasta tekstiksi | 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 | yleensä 2–3 krediittiä |
| chart_descriptionKuvaile kaaviot ja infografiikat | 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 | yleensä 2–3 krediittiä |
| design_feedbackSuunnittelupalaute kuvakaappauksesta | 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 | yleensä 2–3 krediittiä |
| job_ad_checkTyöpaikkailmoituksen tarkistus | 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 | yleensä 1–3 krediittiä |
| green_claims_checkYmpäristöväittämien tarkistus | 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 | yleensä 1–3 krediittiä |
| third_party_scanKolmansien osapuolten palvelujen tarkistus | url, html | – | url, host, page_from, static_only, counts, consent, groups, cookies, legend, notes, check, note, truncated, checked_at | yleensä 1–2 krediittiä |
| broken_link_checkRikkinäisten linkkien tarkistus | 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 | yleensä 1–2 krediittiä |
| duplicate_content_checkPäällekkäisen sisällön tarkistus | url, text | – | language, mode, url, host, summary, counts, findings, passed, hints, thresholds, pages, limits, note, truncated | yleensä 1–2 krediittiä |
| hreflang_checkhreflang-tarkistus | url | – | language, url, counts, findings, pages, matrix, annotations, legend, limits, note | yleensä 1–2 krediittiä |
| ai_robots_txtTekoälyrobotit robots.txt-tiedostossa | site_url, robots_txt, groups, crawlers | – | file, file_complete, ai_section, crawlers, counts, source, existing, changes, checks, notes, legend, sources, verified_on, language, note | yleensä 1–2 krediittiä |
| faq_from_supportUKK asiakastuen viesteistä | 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 | yleensä 1–3 krediittiä |
| price_display_checkHintamerkintöjen tarkistus | 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 | yleensä 1–3 krediittiä |
| form_text_checkLomaketekstit | 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 | yleensä 1–3 krediittiä |
| newsletter_checkUutiskirjeen tarkistus | 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 | yleensä 1–3 krediittiä |
| privacy_policy_matchTietosuojaselosteen tarkistus | 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 | yleensä 1–3 krediittiä |
| social_card_checkJakokortin tarkistus | url | – | language, url, counts, preview, findings, tags, images, snippet, guidance, limits, note | yleensä 1–2 krediittiä |
| image_performance_checkKuvien tarkistus | url | – | language, url, counts, total, formats, lcp, page_findings, summary, images, more_images, legend, limits, note, truncated | yleensä 1–2 krediittiä |
| ai_transparency_checkTekoälyn läpinäkyvyyden tarkistus | 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 | yleensä 1–3 krediittiä |
| structured_data_checkRakenteisen datan tarkistus | url, html | – | language, url, input, counts, formats, findings, items, rules, visible, limits, truncated, note | yleensä 1–2 krediittiä |
| legal_notice_checkImpressumin tarkistus | 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 | yleensä 1–3 krediittiä |
| glossary_builderRakenna sanasto | 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 | yleensä 1–3 krediittiä |
| local_business_checkYritystietojen tarkistus | 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 | yleensä 1–2 krediittiä |
| consent_preload_checkLatautuuko ennen suostumusta? | url | – | url, final_url, host, loaded, counts, timing, consent, groups, cookies, storage, notes, check, law, note, truncated, checked_at | yleensä 1–2 krediittiä |
| ai_literacy_policyTekoälylukutaito-ohje (tekoälyasetuksen 4 artikla) | 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 | yleensä 1–2 krediittiä |
| withdrawal_button_checkPeruuttamispainikkeen tarkistus | 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 | yleensä 1–3 krediittiä |
| product_safety_checkTuotesivun tarkistus (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 | yleensä 1–3 krediittiä |
| website_checkSivustotarkistus | url | scope: short | full | score, categories, findings, counts, snippet, llms_txt, summary, actions, note | fixed 5 credits per task |
| translateKäännä | 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 | yleensä 1–4 krediittiä |
| proofreadOikoluku | 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 | yleensä 1–4 krediittiä |
| translate_fileKielitiedostot | 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 | yleensä 5–8 krediittiä |
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.
Webhookit
Lisää "callback_url" kutsuun POST /api/v1/jobs, niin Do4U lähettää allekirjoitetun POST-pyynnön (tapahtuma job.finished, jossa tila, krediitit ja tuloksen linkki - ei itse tulosta), heti kun työ on valmis. Vain julkiset osoitteet portissa 80 tai 443; yritämme uudelleen enintään 6 kertaa kasvavin tauoin.
Esimerkki: luo työ callback_url-osoitteella – ja pyyntö, jonka Do4U lähettää kyseiseen osoitteeseen, kun työ on valmis:
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..."} Tarkista otsake X-Do4U-Signature: t=<time>,v1=<hex>, missä v1 = HMAC-SHA256(secret, "<time>.<raw body>"). Hylkää vanhat aikaleimat (esim. yli 5 minuuttia vanhat). Salaisuutesi alkaa merkkijonolla whsec_ ja näkyy sivulla API-avaimet.
// 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
Kun tilin krediittisaldo laskee kynnysarvon alle, Do4U lähettää tilin webhook-osoitteeseen yhden allekirjoitetun POST-pyynnön. Tapahtuma ei sisällä henkilötietoja, vain saldon, kynnysarvon ja ajan (UTC). Seuraava tulee vasta, kun krediittejä on lisätty uudelleen (osto, kuukausittaiset ilmaiset krediitit tai kuponki). Allekirjoitus ja salaisuus ovat samat kuin job.finished-tapahtumassa.
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"} Asetat osoitteen ja kynnysarvon täällä: API-avaimet
n8n
Valmis työnkulku: webhook vastaanottaa Do4U:n kutsun, tarkistaa allekirjoituksen, hakee tuloksen ja välittää sen seuraavalle vaiheellesi.
Malli, jota ei ole vielä testattu todellisessa n8n- tai Make-ympäristössä – testaa allekirjoituksen tarkistus ennen käyttöä.
n8n:ssä: Workflows → Import from file. Syötä sitten salaisuutesi solmuun "Check signature" ja API-avaimesi solmuun "Do4U: get result", aktivoi työnkulku ja käytä webhookin tuotanto-URL-osoitetta callback_url-arvona. Itse ylläpidetty n8n tarvitsee allekirjoituksen tarkistukseen ympäristömuuttujan NODE_FUNCTION_ALLOW_BUILTIN=crypto.
Make
- Lisää moduuli Webhooks → Custom webhook käynnistimeksi ja ota sen lisäasetuksissa käyttöön "JSON pass-through" ja "Get request headers".
- Käytä tämän webhookin osoitetta callback_url-arvona.
- Tarkista allekirjoitus: vertaa otsikon X-Do4U-Signature arvoa v1 arvoon sha256(t + "." + raw body; hex; salaisuutesi).
- Lisää HTTP → Make a request: GET osoitteeseen result_url otsikolla Authorization: Bearer <your API key>.
- Käytä kenttää result seuraavissa moduuleissasi.
Malli, jota ei ole vielä testattu todellisessa n8n- tai Make-ympäristössä – testaa allekirjoituksen tarkistus ennen käyttöä.
Reseptit: ketjuta työkaluja
Resepti ajaa 2–4 työkalua peräkkäin yhtenä tehtävänä. Lähetä "recipe" kentän "tool" sijaan: joko valmiin reseptin nimi tai luettelo vaiheista. Teksti menee ensimmäiseen vaiheeseen; kunkin vaiheen tulos on seuraavan vaiheen teksti. GET /api/v1/recipes listaa valmiit reseptit, käytettävät työkalut ja kentän, jonka kukin työkalu välittää eteenpäin.
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": "..."}' Saat yhden arvion kaikille vaiheille (credits_estimate). Tämä määrä varataan alussa. Kunkin vaiheen jälkeen todellinen käyttö kirjataan ja loppu pysyy varattuna loppuun asti, jolloin se vapautetaan. Epäonnistunut vaihe ei maksa mitään, loput vaiheet ohitetaan, ja jo valmistuneista vaiheista veloitetaan.
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..."}} GET /api/v1/jobs/{id} näyttää jokaisen vaiheen tilan (pending, queued, running, done, failed, skipped), sen krediitit, ilmoituksen input_shortened, jos tekstiä piti lyhentää seuraavaa työkalua varten, sekä kunkin vaiheen tuloksen, kun resepti on päättynyt. Asetuksella no_store tulokset näytetään kerran. callback_url laukeaa kerran reseptin lopussa.
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.
Vastaa sähköposteihin muuttamatta saapuneiden kansiotasi
Do4U ei ylläpidä sähköpostilaatikkoa eikä koskaan tallenna postilaatikkosi käyttötietoja. Kaksi tapaa saada vastausluonnoksia silti:
S1 – Malli n8n:lle tai Makelle
- Käynnistin: uusi sähköposti postilaatikossasi (IMAP-käynnistin n8n:ssä tai Makessa – käyttötiedot pysyvät siellä)
- POST /api/v1/jobs työkalulla support_reply, sähköpostin tekstillä ja no_store: true
- Odota muutama sekunti ja hae GET /api/v1/jobs/{id}, kunnes tila on done
- Luo luonnos postilaatikkoosi tekstillä kentästä result.reply (Gmail- tai Outlook-moduuli)
Rakenna Makessa sama skenaario moduuleista Email (watch emails), HTTP (make a request), Sleep sekä Gmail tai Outlook (create a draft).
Kehittäjälaajennukset ja kauppalisäosat
Pura ZIP ja lue mukana tuleva opas. Lataa selainlaajennus paikallisesti; testaa kauppalisäosat ensin testikaupassa. Tarvitset oman Dev API -avaimen. Shopware tarjoaa tällä hetkellä komentoriviohjelman (CLI).