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Stop pasting internal API docs into every agent session. Serve the OpenAPI spec as a local or hosted MCP endpoint, register it once in Cursor and Claude Code, and let the agent call typed tools. Here is the full setup, auth scoping, and the verification checklist.
Read articleA scanned document is only worth something if the team exercises it. Start a mock for blocked consumers, chain real scenario tests against staging, and serve the spec as an MCP server for internal agents.
Read articleDocs, mock, and MCP endpoint usually mean three pipelines, three versions, and three sources of drift. Here is how to publish human docs and an agent endpoint from one OpenAPI document on your own domain, with access control, versioning, and a rollback path.
Read articleFunction calling is a model capability; plugins were a ChatGPT-era distribution experiment; MCP is a transport and discovery protocol between clients and tool servers. They are not competitors, and confusing them produces bad integrations. Here is the layered view and where your OpenAPI spec fits.
Read articleInventory APIs get consumed by developers reading docs and by agents discovering tools. Separate web docs, prompt pastes, and hand-written schemas guarantee drift; one OpenAPI file produces both.
Read articleA concrete Cloud walkthrough: publish a managed Streamable HTTP MCP endpoint from one spec, expose twelve operations out of forty-seven, gate agents with a rotated bearer key, inject upstream auth, and pin the partner to an immutable version.
Read articlePasted docs rot mid-session, burn tokens on every conversation, and leave the agent guessing field names. An MCP server generated from the OpenAPI spec gives an agent callable tools with typed inputs instead of prose. Here is when that wins and when it does not.
Read articleHand-writing tool wrappers around existing order and inventory endpoints means maintaining every contract twice. Generate the MCP server from the OpenAPI spec, start with read-only tools, and widen the surface deliberately.
Read articleAI agents need tools, and hand-writing MCP wrappers around your API recreates the exact drift problem OpenAPI solved. Powerduck Cloud turns one spec into hosted docs and a ready-to-use MCP endpoint.
Read articleAn OpenAPI document is already a tool catalog. Here is how operations become MCP tools, how auth and streaming map across, and what breaks when you point a generic converter at a real spec.
Read articleGenerated screens fail on limit versus pageSize, data.records versus data.items, cents versus dollars. The fix is not a better prompt; it is letting the agent query the real contract and verify against real responses.
Read articleEvery new coding assistant starts with the same ritual: paste the docs, explain the fields, warn about stale versions. A local spec served over MCP makes that context permanent.
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