Speakeasy
Turns an OpenAPI spec into production-grade, idiomatic SDKs (and MCP servers) automatically
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At a glance
What it does
Generates production-ready, type-safe SDKs and MCP servers from your OpenAPI spec, updated on every change.
Detailed overview
Hand-maintaining client libraries across many languages is a huge, error-prone cost for API-first teams. Speakeasy generates type-safe SDKs across languages — handling OAuth 2.0, retries, pagination, and docs — with every API change triggering SDK updates as pull requests, and it now ships an enterprise MCP platform for connecting agents to APIs. It's infrastructure that hides beneath other companies' developer experiences — and with Stainless exiting to Anthropic, it's the leading independent option most people still haven't heard of. Customers include Vercel, Clerk, Kong, Mistral AI, Fivetran, Airbyte, and SolarWinds; backed by a $15M Series A led by FPV Ventures with GV and Quiet Capital; active GitHub Action and CLI.
Key features
- Type-safe SDKs from your OpenAPI spec
- Handles OAuth, retries, pagination, docs
- Updates SDKs as PRs on every change
- Ships an enterprise MCP server platform
Who it's for
Best suited for developers looking for ai coding tools. Turns an OpenAPI spec into production-grade, idiomatic SDKs (and MCP servers) automatically
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