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_commentKontroller kommentarer for spam | text | – | classification, reason, suggestion, action, note | vanligvis 1–3 kreditter |
| document_htmlGjør dokumenter om til HTML | 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 | vanligvis 2–3 kreditter |
| image_textFinn tekst innebygd i bilder | 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 | vanligvis 2–3 kreditter |
| pdf_accessibilitySjekk tilgjengeligheten til PDF | – | checks, pages, truncated, repaired, note, convert_url | vanligvis 1–2 kreditter | |
| summarizeOppsummer | text, url | length: medium | short | long | summary, key_points | vanligvis 1–3 kreditter |
| compareSammenlign | text, text_b | focus: overall | facts | tone | seo | summary, similarities, differences | vanligvis 1–3 kreditter |
| support_replyKundesvar | text, faq | tone: friendly | neutral | formal | reply, concerns, questions | vanligvis 1–3 kreditter |
| alt_textAlt-tekster | 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 | vanligvis 2–3 kreditter |
| rewriteSkriv om | 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 | vanligvis 1–4 kreditter |
| accessibility_checkTilgjengelighetskontroll | url, html | – | summary, page, counts, findings, checks, readability, note | fixed 3 credits per task |
| seo_metaSEO-tittel og beskrivelse | 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_htmlOversett 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 | vanligvis 1–4 kreditter |
| product_descriptionProduktbeskrivelser | 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 | vanligvis 1–3 kreditter |
| headlinesOverskrifter og emnelinjer | 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_schemaFAQ og skjemamarkering | 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_briefInnholdsbrief | 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 | vanligvis 1–2 kreditter |
| review_replySvar på anmeldelser | 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 | vanligvis 1–2 kreditter |
| social_postsInnlegg i sosiale medier fra en artikkel | 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 | vanligvis 1–3 kreditter |
| explain_termsForklar begreper | 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 | vanligvis 1–3 kreditter |
| extract_dataHent ut data | 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 | vanligvis 1–3 kreditter |
| redirect_planOmdirigeringsplan | 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 | vanligvis 1–3 kreditter |
| contrast_checkFargekontrastsjekk | colors | level: aa | aaatext_size: normal | large | colors, pairs, counts, invalid, settings, palette_check, legend, language, note | vanligvis 1–2 kreditter |
| language_levelSpråknivå (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 | vanligvis 1–4 kreditter |
| llms_txtllms.txt-generator | 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 | vanligvis 1–3 kreditter |
| internal_linksInterne lenker | text, pages, sitemap_url, page_url | – | links, text, text_is_html, counts, pages, dropped, ai, limits, language, detected_language, timeout, notes, note | vanligvis 1–3 kreditter |
| outdated_contentUtdatert innhold | 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 | vanligvis 1–3 kreditter |
| inclusive_languageInkluderende og enkelt språk | 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 | vanligvis 1–3 kreditter |
| review_analysisAnmeldelsesanalyse | 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 | vanligvis 1–3 kreditter |
| ai_visibility_checkSjekk av KI-synlighet | 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 | vanligvis 1–3 kreditter |
| events_calendarArrangementer til kalender | 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 | vanligvis 1–3 kreditter |
| product_photoProduktbilde til tekst | 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 | vanligvis 2–3 kreditter |
| chart_descriptionBeskriv diagrammer og infografikk | 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 | vanligvis 2–3 kreditter |
| design_feedbackDesigntilbakemelding fra et skjermbilde | 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 | vanligvis 2–3 kreditter |
| job_ad_checkSjekk av stillingsannonser | 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 | vanligvis 1–3 kreditter |
| green_claims_checkSjekk av miljøpåstander | 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 | vanligvis 1–3 kreditter |
| third_party_scanSjekk av tredjepartstjenester | url, html | – | url, host, page_from, static_only, counts, consent, groups, cookies, legend, notes, check, note, truncated, checked_at | vanligvis 1–2 kreditter |
| broken_link_checkSjekk av døde lenker | 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 | vanligvis 1–2 kreditter |
| duplicate_content_checkSjekk av duplisert innhold | url, text | – | language, mode, url, host, summary, counts, findings, passed, hints, thresholds, pages, limits, note, truncated | vanligvis 1–2 kreditter |
| hreflang_checkhreflang-sjekk | url | – | language, url, counts, findings, pages, matrix, annotations, legend, limits, note | vanligvis 1–2 kreditter |
| ai_robots_txtKI-crawlere i robots.txt | site_url, robots_txt, groups, crawlers | – | file, file_complete, ai_section, crawlers, counts, source, existing, changes, checks, notes, legend, sources, verified_on, language, note | vanligvis 1–2 kreditter |
| faq_from_supportFAQ fra kundestøttemeldinger | 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 | vanligvis 1–3 kreditter |
| price_display_checkSjekk av prisangivelser | 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 | vanligvis 1–3 kreditter |
| form_text_checkSkjematekster | 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 | vanligvis 1–3 kreditter |
| newsletter_checkNyhetsbrevsjekk | 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 | vanligvis 1–3 kreditter |
| privacy_policy_matchSjekk av personvernerklæring | 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 | vanligvis 1–3 kreditter |
| social_card_checkSjekk av delingskort | url | – | language, url, counts, preview, findings, tags, images, snippet, guidance, limits, note | vanligvis 1–2 kreditter |
| image_performance_checkBildesjekk | url | – | language, url, counts, total, formats, lcp, page_findings, summary, images, more_images, legend, limits, note, truncated | vanligvis 1–2 kreditter |
| ai_transparency_checkSjekk av KI-åpenhet | 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 | vanligvis 1–3 kreditter |
| structured_data_checkSjekk av strukturerte data | url, html | – | language, url, input, counts, formats, findings, items, rules, visible, limits, truncated, note | vanligvis 1–2 kreditter |
| legal_notice_checkSjekk av impressum | 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 | vanligvis 1–3 kreditter |
| glossary_builderBygg en ordliste | 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 | vanligvis 1–3 kreditter |
| local_business_checkSjekk av bedriftsopplysninger | 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 | vanligvis 1–2 kreditter |
| consent_preload_checkLastes noe før samtykke? | url | – | url, final_url, host, loaded, counts, timing, consent, groups, cookies, storage, notes, check, law, note, truncated, checked_at | vanligvis 1–2 kreditter |
| ai_literacy_policyRetningslinjer for KI-kompetanse (KI-forordningen art. 4) | 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 | vanligvis 1–2 kreditter |
| withdrawal_button_checkSjekk av angreknapp | 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 | vanligvis 1–3 kreditter |
| product_safety_checkSjekk av produktsider (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 | vanligvis 1–3 kreditter |
| website_checkNettstedskontroll | url | scope: short | full | score, categories, findings, counts, snippet, llms_txt, summary, actions, note | fixed 5 credits per task |
| translateOversett | 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 | vanligvis 1–4 kreditter |
| proofreadKorrekturlesing | 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 | vanligvis 1–4 kreditter |
| translate_fileSpråkfiler | 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 | vanligvis 5–8 kreditter |
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.
Webhooks
Legg til "callback_url" i POST /api/v1/jobs, så sender Do4U en signert POST (hendelsen job.finished med status, kreditter og resultatlenken - ikke selve resultatet) så snart jobben er ferdig. Kun offentlige adresser på port 80 eller 443; vi prøver på nytt opptil 6 ganger med økende pauser.
Eksempel: opprett en jobb med callback_url – og forespørselen Do4U sender til den adressen når jobben er ferdig:
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..."} Kontroller headeren X-Do4U-Signature: t=<time>,v1=<hex>, der v1 = HMAC-SHA256(secret, "<time>.<raw body>"). Avvis gamle tidspunkter (f.eks. eldre enn 5 minutter). Hemmeligheten din begynner med whsec_ og vises på siden API-nøkler.
// 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
Når kreditsaldoen til en konto faller under terskelen, sender Do4U én signert POST til webhook-adressen til kontoen. Hendelsen inneholder ingen personopplysninger, bare saldoen, terskelen og tidspunktet (UTC). Den neste kommer først etter at det er lagt til kreditter igjen (kjøp, månedlige gratiskreditter eller kupongkode). Signatur og hemmelighet er de samme som for job.finished.
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"} Du angir adressen og terskelen her: API-nøkler
n8n
Ferdig arbeidsflyt: en webhook mottar kallet fra Do4U, kontrollerer signaturen, henter resultatet og gir det videre til neste steg.
Mal, ennå ikke testet i en ekte n8n- eller Make-instans – test signaturkontrollen før du bruker den.
I n8n: Workflows → Import from file. Skriv deretter inn hemmeligheten din i noden "Check signature" og API-nøkkelen din i "Do4U: get result", aktiver arbeidsflyten og bruk produksjons-URL-en til webhooken som callback_url. Selvhostet n8n trenger miljøvariabelen NODE_FUNCTION_ALLOW_BUILTIN=crypto for signaturkontrollen.
Make
- Legg til modulen Webhooks → Custom webhook som utløser og slå på "JSON pass-through" og "Get request headers" i de avanserte innstillingene.
- Bruk adressen til denne webhooken som callback_url.
- Kontroller signaturen: sammenlign v1 fra headeren X-Do4U-Signature med sha256(t + "." + raw body; hex; hemmeligheten din).
- Legg til HTTP → Make a request: GET på result_url med headeren Authorization: Bearer <your API key>.
- Bruk feltet result i de neste modulene dine.
Mal, ennå ikke testet i en ekte n8n- eller Make-instans – test signaturkontrollen før du bruker den.
Oppskrifter: lenk verktøy sammen
En oppskrift kjører 2 til 4 verktøy etter hverandre som én jobb. Send «recipe» i stedet for «tool»: enten navnet på en ferdig oppskrift eller en liste med steg. Teksten går inn i det første steget. Resultatet fra hvert steg er teksten til neste steg. GET /api/v1/recipes viser de ferdige oppskriftene, verktøyene du kan bruke og feltet hvert verktøy gir videre.
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": "..."}' Du får ett estimat for alle stegene (credits_estimate). Dette beløpet reserveres ved start. Etter hvert steg bokføres det faktiske forbruket, og resten forblir reservert til slutten, før det frigjøres. Et steg som mislykkes, koster ingenting, de resterende stegene hoppes over, og steg som allerede var ferdige, belastes.
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} viser hvert steg med status (pending, queued, running, done, failed, skipped), kreditter, en melding input_shortened hvis teksten måtte forkortes for neste verktøy, og resultatet av hvert steg når oppskriften er avsluttet. Med no_store vises resultatene én gang. callback_url utløses én gang, på slutten av oppskriften.
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.
Svar på e-poster uten å endre innboksen din
Do4U driver ingen innboks og lagrer aldri tilgangsdata til postkassen din. To måter å få svarutkast på likevel:
S1 – Mal for n8n eller Make
- Utløser: en ny e-post i postkassen din (IMAP-utløser i n8n eller Make – tilgangsdataene blir der)
- POST /api/v1/jobs med verktøyet support_reply, e-postteksten og no_store: true
- Vent noen sekunder og hent GET /api/v1/jobs/{id} til statusen er done
- Opprett et utkast i postkassen din med teksten fra result.reply (Gmail- eller Outlook-modul)
I Make bygger du det samme scenariet av modulene Email (watch emails), HTTP (make a request), Sleep og Gmail eller Outlook (create a draft).
Utvikler-utvidelser og butikkutvidelser
Pakk ut ZIP-filen og les den medfølgende veiledningen. Last nettleserutvidelsen lokalt; test butikkutvidelser i en testbutikk først. Du trenger din egen Dev API-nøkkel. Shopware tilbyr foreløpig en CLI.