{"api":"fakturai REST API","version":"v1","docs_url":"https://fakturai.de/docs/api","docs_url_de":"https://fakturai.de/de/docs/api","docs_url_en":"https://fakturai.de/en/docs/api","docs_urls":{"de":"https://fakturai.de/de/docs/api","en":"https://fakturai.de/en/docs/api"},"mcp_url":"https://fakturai.de/mcp","mcp_manifest_url":"https://fakturai.de/.well-known/mcp.json","ai_plugin_url":"https://fakturai.de/.well-known/ai-plugin.json","llms_url":"https://fakturai.de/llms.txt","openapi_url":"https://fakturai.de/openapi.json","openapi_well_known_url":"https://fakturai.de/.well-known/openapi.json","schema_url":"https://fakturai.de/schemas/invoice-input/v1.json","build_stamp_url":"https://fakturai.de/api/build-stamp","proof_url":"https://fakturai.de/de/proof","proof_url_de":"https://fakturai.de/de/proof","proof_url_en":"https://fakturai.de/en/proof","proof_urls":{"de":"https://fakturai.de/de/proof","en":"https://fakturai.de/en/proof"},"privacy_url":"https://fakturai.de/de/datenschutz","privacy_url_en":"https://fakturai.de/en/privacy","pricing_url":"https://fakturai.de/de/preise","pricing_url_de":"https://fakturai.de/de/preise","pricing_url_en":"https://fakturai.de/en/pricing","pricing_urls":{"de":"https://fakturai.de/de/preise","en":"https://fakturai.de/en/pricing"},"signup_url_de":"https://fakturai.de/de/signup","signup_url_en":"https://fakturai.de/en/signup","signup_urls":{"de":"https://fakturai.de/de/signup","en":"https://fakturai.de/en/signup"},"validator_url_de":"https://fakturai.de/de/validator","validator_url_en":"https://fakturai.de/en/validator","validator_urls":{"de":"https://fakturai.de/de/validator","en":"https://fakturai.de/en/validator"},"blog_url_de":"https://fakturai.de/de/blog","blog_url_en":"https://fakturai.de/en/blog","blog_urls":{"de":"https://fakturai.de/de/blog","en":"https://fakturai.de/en/blog"},"feed_url":"https://fakturai.de/feed.xml","sitemap_url":"https://fakturai.de/sitemap.xml","compliance_status_url":"https://fakturai.de/compliance","automation_guides_url":"https://fakturai.de/de/blog/e-rechnung-api-agenten","automation_guides":{"n8n":"https://fakturai.de/de/blog/n8n-e-rechnung","make":"https://fakturai.de/de/blog/make-e-rechnung","zapier":"https://fakturai.de/de/blog/zapier-e-rechnung","api_agents":"https://fakturai.de/de/blog/e-rechnung-api-agenten"},"sdk_guides_url":"https://fakturai.de/de/blog/e-rechnung-sdk","sdk_guides":{"de":"https://fakturai.de/de/blog/e-rechnung-sdk","en":"https://fakturai.de/en/blog/e-invoice-sdk"},"support_email":"kontakt@fakturai.de","security_txt_url":"https://fakturai.de/.well-known/security.txt","imprint_url":"https://fakturai.de/de/impressum","imprint_url_en":"https://fakturai.de/en/imprint","endpoints":{"invoices":{"endpoint":"POST /api/v1/invoices","url":"https://fakturai.de/api/v1/invoices","auth":"Send X-API-Key or Authorization: Bearer <key>.","request_schema":"https://fakturai.de/schemas/invoice-input/v1.json","success":"201 application/pdf","errors":"JSON with error/detail fields","billing":{"unit_price":"€0.09 per generated invoice","packages":"Monthly subscription packages start at €29/month with included volume.","free_validator":"No account required"}},"validation":{"endpoint":"POST /api/validate","url":"https://fakturai.de/api/validate","auth":"No account or API key required","request":"JSON with content_format pdf_b64 or xml and a content field","success":"200 application/json with overall_pass, kosit_result, pdfa_compliant, and findings","errors":"JSON with detail fields","file_handling":{"input":"PDF or XML, up to 10 MB","auth":"No account or API key required","retention":"Validation is for technical feedback and is not a GoBD archive."}},"build_stamp":{"endpoint":"GET /api/build-stamp","url":"https://fakturai.de/api/build-stamp","cache":"no-store","purpose":"Deployment freshness and commit readback for agents and QA."},"proof":{"pages":{"de":"https://fakturai.de/de/proof","en":"https://fakturai.de/en/proof"},"sample_invoice":"https://fakturai.de/proof/sample-invoice.json","validation_report":"https://fakturai.de/proof/passed-validation-report.json","purpose":"Public KoSIT-oriented proof assets for agent evaluation and buyer trust checks."},"mcp":{"endpoint":"POST /mcp","url":"https://fakturai.de/mcp","transport":"streamable-http","manifest":"https://fakturai.de/.well-known/mcp.json","discovery":"Read-only MCP discovery methods are available without an API key.","auth":"Tool calls that generate invoices require X-API-Key or Authorization: Bearer *** API key.","tools":{"generate_einvoice":{"name":"generate_einvoice","auth_required":true,"description":"Generate a KoSIT-verified ZUGFeRD / Factur-X invoice PDF from structured invoice JSON."},"validate_einvoice":{"name":"validate_einvoice","auth_required":false,"description":"Validate German e-invoice XML or base64 PDF content and return KoSIT-oriented findings."},"compliance_status":{"name":"compliance_status","auth_required":false,"description":"Check KoSIT and Mustang engine health plus version pin freshness before invoice generation."}}}}}