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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

toolName of the tool, see the table below. Required.
textInput text. For compare: text A. For alt_text: optional page context.
text_bText B (compare only).
urlPublic web page to read instead of text (summarize, accessibility_check).
htmlHTML of a page to check (accessibility_check), up to 300,000 characters.
focus_keywordOptional focus keyword for seo_meta. Without target, seo_meta writes in language.
faqOptional FAQ snippets (support_reply only).
questionsOptional 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.
imageImage 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_urlOptional 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.
optionsObject with options of the tool, for example {"length": "short"}.
languageLanguage of the result and notes: en, de or pl. Default en. For translate, the target language is the option target.
no_storetrue: the input is deleted right after processing and the result after the first retrieval.
brand_voiceOptional: false switches your brand voice off for this job (default: the brand voice applies if you have set one).
ai_labelOptional: 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_urlOptional: public https address that gets a signed POST when the job is finished (see Webhooks).
render_jsOptional: 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_cacheOptional: 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_languageOptional 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

ToolInputs Options (first value is the default)Result fieldsPrice
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 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.

Last ned n8n-malen (JSON)

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

  1. Legg til modulen Webhooks → Custom webhook som utløser og slå på "JSON pass-through" og "Get request headers" i de avanserte innstillingene.
  2. Bruk adressen til denne webhooken som callback_url.
  3. Kontroller signaturen: sammenlign v1 fra headeren X-Do4U-Signature med sha256(t + "." + raw body; hex; hemmeligheten din).
  4. Legg til HTTP → Make a request: GET på result_url med headeren Authorization: Bearer <your API key>.
  5. 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.

CodeHTTPMeaning
missing_key401No API key sent.
invalid_key401Key unknown or revoked.
rate_limited429Too many requests in this minute.
invalid_json400Body is not a JSON object.
unknown_tool400No tool with this name.
invalid_option400Unknown option or value.
invalid_field400A field has the wrong type.
invalid_language400language is not en, de or pl.
empty_input400No text or URL.
text_b_required400compare needs text and text_b.
input_too_long400Input longer than your limit.
input_too_large400Input too large for one job: shorten it or split it into several jobs.
invalid_url400URL not allowed or not readable.
invalid_image400Image missing, wrong format or too large.
payload_too_large413Request body larger than 8 MB.
insufficient_credits402Not enough credits.
email_not_verified402Confirm your email address first.
daily_limit429Free daily limit used up (website_check scope short).
too_many_open_jobs429Too many open jobs in your account.
package_required403The tool needs a purchased package.
busy503The queue is full, try again shortly.
tool_unavailable503The tool is not available right now.
not_found404Unknown endpoint or job.
method_not_allowed405Wrong HTTP method.
internal_error500Error on our side.
invalid_idempotency_key400Idempotency-Key is empty, too long or has characters that are not printable ASCII.
idempotency_conflict422This Idempotency-Key was already used with a different request.
idempotency_in_progress409A request with this Idempotency-Key is still running. Wait a moment (Retry-After).
idempotency_unavailable503Idempotency-Key cannot be used right now. Try again later.
same_language400The text already is in the target language (translate tools). Send allow_same_language: true to translate anyway.

Limits

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

  1. Utløser: en ny e-post i postkassen din (IMAP-utløser i n8n eller Make – tilgangsdataene blir der)
  2. POST /api/v1/jobs med verktøyet support_reply, e-postteksten og no_store: true
  3. Vent noen sekunder og hent GET /api/v1/jobs/{id} til statusen er done
  4. Opprett et utkast i postkassen din med teksten fra result.reply (Gmail- eller Outlook-modul)

Last ned n8n-malen (JSON)

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.