usepaso is an open-source toolkit designed to make APIs agent-ready by generating a live MCP (Machine Control Protocol) server from a single YAML declaration of an API's capabilities. It aims to eliminate the need for developers to write protocol adapters for each new agent protocol by allowing them to describe their API once, after which usepaso handles the protocol-specific implementation. The tool is suitable for developers and teams who want to expose their REST APIs to agent clients without managing the complexities of evolving agent protocols.
The workflow begins with a declaration of the API's capabilities in a YAML file, which can be created manually or generated from an existing OpenAPI specification. usepaso validates the declaration, enables testing of capabilities, and then serves a live MCP server that agents can connect to. The tool automates server setup, request routing, authentication forwarding, and error handling, removing the need for direct protocol code. Permission tiers such as read, write, and admin can be specified, along with consent requirements for sensitive actions, rate limiting, and forbidden lists to tightly control agent access. This approach allows developers to curate which endpoints agents can access and set boundaries for agent interactions.
usepaso is self-hosted and runs locally without telemetry or external dependencies, providing privacy and control. The generated server operates standalone, requiring no ongoing runtime dependencies. js and Python environments and is compatible with agent clients such as Claude Desktop, Cursor, VS Code, and Windsurf. Integration with Claude Desktop is facilitated through a simple command that updates the configuration for agent connectivity.
The tool is designed to adapt to changing protocol standards, currently supporting MCP with plans for future protocols, ensuring that developers only need to maintain a single declaration regardless of protocol changes. This makes usepaso a practical solution for API providers seeking to participate in the agent economy without repeated protocol-specific development.
usepaso is a Frameworks & SDKs product. It focuses on enabling APIs to be easily integrated with AI agents and multiple protocols using a single Python declaration. It is built as an open-source project for python developers building agent-ready APIs. usepaso is open source under the Apache-2.0 license. usepaso is available on the web, the command line, and API.
5h1vmani builds and maintains usepaso, and the product first shipped in 2026. Development happens publicly on GitHub with 3 commits in the last 90 days. Key capabilities include agent readiness, multi-protocol support, and openAPI integration. It exposes integrations via an MCP server and a public API.
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