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_commentTjek kommentarer for spam | text | – | classification, reason, suggestion, action, note | normalt 1–3 credits |
| document_htmlGør dokumenter 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 | normalt 2–3 credits |
| image_textFind tekst i billeder | 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 | normalt 2–3 credits |
| pdf_accessibilityTjek PDF-tilgængelighed | – | checks, pages, truncated, repaired, note, convert_url | normalt 1–2 credits | |
| summarizeResumér | text, url | length: medium | short | long | summary, key_points | normalt 1–3 credits |
| compareSammenlign | text, text_b | focus: overall | facts | tone | seo | summary, similarities, differences | normalt 1–3 credits |
| support_replySupportsvar | text, faq | tone: friendly | neutral | formal | reply, concerns, questions | normalt 1–3 credits |
| 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 | normalt 2–3 credits |
| rewriteOmskriv | 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 | normalt 1–4 credits |
| accessibility_checkTilgængelighedstjek | url, html | – | summary, page, counts, findings, checks, readability, note | fixed 3 credits per task |
| seo_metaSEO-titel 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_htmlOversæt 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 | normalt 1–4 credits |
| 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 | normalt 1–3 credits |
| 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 schema-markup | 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_briefIndholdsbrief | 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 | normalt 1–2 credits |
| 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 | normalt 1–2 credits |
| social_postsOpslag til sociale medier ud fra en artikel | 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 | normalt 1–3 credits |
| explain_termsForklar begreber | 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 | normalt 1–3 credits |
| extract_dataUdtræk 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 | normalt 1–3 credits |
| 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 | normalt 1–3 credits |
| contrast_checkFarvekontrasttjek | colors | level: aa | aaatext_size: normal | large | colors, pairs, counts, invalid, settings, palette_check, legend, language, note | normalt 1–2 credits |
| language_levelSprogniveau (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 | normalt 1–4 credits |
| 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 | normalt 1–3 credits |
| internal_linksInterne links | text, pages, sitemap_url, page_url | – | links, text, text_is_html, counts, pages, dropped, ai, limits, language, detected_language, timeout, notes, note | normalt 1–3 credits |
| outdated_contentForældet indhold | 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 | normalt 1–3 credits |
| inclusive_languageInkluderende og enkelt sprog | 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 | normalt 1–3 credits |
| 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 | normalt 1–3 credits |
| ai_visibility_checkTjek af AI-synlighed | 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 | normalt 1–3 credits |
| events_calendarBegivenheder 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 | normalt 1–3 credits |
| product_photoProduktfoto 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 | normalt 2–3 credits |
| chart_descriptionBeskriv diagrammer og infografikker | 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 | normalt 2–3 credits |
| design_feedbackDesignfeedback ud fra et screenshot | 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 | normalt 2–3 credits |
| job_ad_checkJobannoncetjek | 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 | normalt 1–3 credits |
| green_claims_checkTjek af miljøpåstande | 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 | normalt 1–3 credits |
| third_party_scanTjek af tredjepartstjenester | url, html | – | url, host, page_from, static_only, counts, consent, groups, cookies, legend, notes, check, note, truncated, checked_at | normalt 1–2 credits |
| broken_link_checkTjek af døde links | 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 | normalt 1–2 credits |
| duplicate_content_checkTjek af duplikeret indhold | url, text | – | language, mode, url, host, summary, counts, findings, passed, hints, thresholds, pages, limits, note, truncated | normalt 1–2 credits |
| hreflang_checkhreflang-tjek | url | – | language, url, counts, findings, pages, matrix, annotations, legend, limits, note | normalt 1–2 credits |
| ai_robots_txtAI-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 | normalt 1–2 credits |
| faq_from_supportFAQ ud fra supportbeskeder | 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 | normalt 1–3 credits |
| price_display_checkTjek af 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 | normalt 1–3 credits |
| form_text_checkFormulartekster | 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 | normalt 1–3 credits |
| newsletter_checkNyhedsbrevstjek | 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 | normalt 1–3 credits |
| privacy_policy_matchTjek af privatlivspolitik | 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 | normalt 1–3 credits |
| social_card_checkTjek af delingskort | url | – | language, url, counts, preview, findings, tags, images, snippet, guidance, limits, note | normalt 1–2 credits |
| image_performance_checkBilledtjek | url | – | language, url, counts, total, formats, lcp, page_findings, summary, images, more_images, legend, limits, note, truncated | normalt 1–2 credits |
| ai_transparency_checkTjek af AI-gennemsigtighed | 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 | normalt 1–3 credits |
| structured_data_checkTjek af strukturerede data | url, html | – | language, url, input, counts, formats, findings, items, rules, visible, limits, truncated, note | normalt 1–2 credits |
| legal_notice_checkTjek af 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 | normalt 1–3 credits |
| glossary_builderByg 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 | normalt 1–3 credits |
| local_business_checkTjek af virksomhedsdata | 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 | normalt 1–2 credits |
| consent_preload_checkIndlæses før samtykke? | url | – | url, final_url, host, loaded, counts, timing, consent, groups, cookies, storage, notes, check, law, note, truncated, checked_at | normalt 1–2 credits |
| ai_literacy_policyPolitik for AI-færdigheder (AI-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 | normalt 1–2 credits |
| withdrawal_button_checkTjek af fortrydelsesknap | 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 | normalt 1–3 credits |
| product_safety_checkTjek af 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 | normalt 1–3 credits |
| website_checkWebsitetjek | url | scope: short | full | score, categories, findings, counts, snippet, llms_txt, summary, actions, note | fixed 5 credits per task |
| translateOversæt | 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 | normalt 1–4 credits |
| proofreadKorrekturlæsning | 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 | normalt 1–4 credits |
| translate_fileSprogfiler | 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 | normalt 5–8 credits |
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
Tilføj "callback_url" til POST /api/v1/jobs, så sender Do4U en signeret POST (hændelsen job.finished med status, credits og resultatlinket - ikke selve resultatet), så snart jobbet er færdigt. Kun offentlige adresser på port 80 eller 443; vi prøver igen op til 6 gange med stigende pauser.
Eksempel: opret et job med callback_url – og den forespørgsel, Do4U sender til den adresse, når jobbet er færdigt:
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..."} Tjek headeren X-Do4U-Signature: t=<time>,v1=<hex>, hvor v1 = HMAC-SHA256(secret, "<time>.<raw body>"). Afvis gamle tidspunkter (f.eks. ældre end 5 minutter). Din hemmelighed starter med whsec_ og vises på siden API-nøgler.
// 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 en kontos credit-saldo falder under tærsklen, sender Do4U én signeret POST til kontoens webhook-adresse. Hændelsen indeholder ingen personoplysninger, kun saldoen, tærsklen og tidspunktet (UTC). Den næste følger først, efter at der er tilføjet credits igen (køb, månedlige gratis credits eller gavekode). Signatur og hemmelighed er de samme som til 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 angiver adressen og tærsklen her: API-nøgler
n8n
Færdig workflow: en webhook modtager kaldet fra Do4U, kontrollerer signaturen, henter resultatet og giver det videre til dit næste trin.
Download n8n-skabelonen (JSON)
Skabelon, endnu ikke testet i en rigtig n8n- eller Make-instans – test signaturkontrollen, før du bruger den.
I n8n: Workflows → Import from file. Indtast derefter din hemmelighed i noden "Check signature" og din API-nøgle i "Do4U: get result", aktivér workflowet, og brug webhookens produktions-URL som callback_url. Selvhostet n8n kræver miljøvariablen NODE_FUNCTION_ALLOW_BUILTIN=crypto til signaturkontrollen.
Make
- Tilføj modulet Webhooks → Custom webhook som udløser, og slå "JSON pass-through" og "Get request headers" til i dets avancerede indstillinger.
- Brug denne webhooks adresse som callback_url.
- Kontrollér signaturen: sammenlign v1 fra headeren X-Do4U-Signature med sha256(t + "." + raw body; hex; din hemmelighed).
- Tilføj HTTP → Make a request: GET på result_url med headeren Authorization: Bearer <your API key>.
- Brug feltet result i dine næste moduler.
Skabelon, endnu ikke testet i en rigtig n8n- eller Make-instans – test signaturkontrollen, før du bruger den.
Opskrifter: kæd værktøjer sammen
En opskrift kører 2 til 4 værktøjer efter hinanden som ét job. Send "recipe" i stedet for "tool": enten navnet på en færdig opskrift eller en liste over trin. Teksten går ind i det første trin; resultatet af hvert trin er teksten til det næste trin. GET /api/v1/recipes viser de færdige opskrifter, de værktøjer, du kan bruge, og det felt, hvert værktøj giver 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 ét overslag for alle trin (credits_estimate). Det beløb reserveres ved starten. Efter hvert trin bogføres det reelle forbrug, og resten forbliver reserveret til sidst og frigives så. Et mislykket trin koster ingenting, de resterende trin springes over, og trin, der allerede var færdige, afregnes.
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 trin med dets status (pending, queued, running, done, failed, skipped), dets credits, en meddelelse input_shortened, hvis teksten skulle forkortes til det næste værktøj, og hvert trins resultat, når opskriften er afsluttet. Med no_store vises resultaterne én gang. callback_url udløses én gang, ved opskriftens afslutning.
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.
Besvar e-mails uden at ændre din indbakke
Do4U driver ikke en indbakke og gemmer aldrig adgangsdata til din postkasse. To måder at få svarudkast alligevel:
S1 – Skabelon til n8n eller Make
- Udløser: en ny e-mail i din postkasse (IMAP-udløser i n8n eller Make – adgangsdata bliver dér)
- POST /api/v1/jobs med værktøjet support_reply, e-mailens tekst og no_store: true
- Vent nogle sekunder, og hent GET /api/v1/jobs/{id}, indtil status er done
- Opret et udkast i din postkasse med teksten fra result.reply (Gmail- eller Outlook-modul)
Download n8n-skabelonen (JSON)
I Make bygger du det samme scenarie af modulerne Email (watch emails), HTTP (make a request), Sleep og Gmail eller Outlook (create a draft).
Dev-udvidelser og shop-plugins
Pak ZIP-filen ud, og læs den medfølgende vejledning. Indlæs browserudvidelsen lokalt; test shop-plugins i en testshop først. Du skal bruge din egen Dev API-nøgle. Shopware tilbyder i øjeblikket en CLI.