API documentationWebhooksWebhooksRegister HMAC-SHA256-signed endpoints for job and account events.Clients and specsMCP connect URLsProduction MCP hosts and profiles. Setup how-tos for Claude, ChatGPT, Grok and Cursor live in the AI Connectors knowledge base.Postman collection and llms.txtLive machine-readable specification. This is the source for endpoints — not a static export and not this article.JobsStart SLAOptional processing_lane controls when a job starts in the queue and the credit multiplier — not when it finishes.JobsHow PaperOffice jobs run: pipeline slugs, client_wait, HTTP 202, polling and error codes.Limits and creditsLimits and creditsMinimum rate limits, response headers for limits and credits, lane multipliers and poll costs.Getting startedAPI quickstartThe operating system of the PaperOffice API. Endpoint details live in llms.txt; this handbook explains auth, jobs, SLA, credits, webhooks and MCP.AuthenticationAuthenticationBearer tokens for the PaperOffice API: system keys, user tokens, group tokens and publishable keys.