Craft exceptional API experiences

Polish OpenAPI, generate SDKs, and build MCP servers. All on our complete API development platform.

Introduction to Speakeasy

Speakeasy is a platform that provides API developers with tools, workflows, and infrastructure to create APIs optimized for both developers and LLMs.

With Speakeasy, create SDKs, agent tools, API documentation, and more.

Our design philosophy

SDKs are a critical interface for an API, which is why we put a lot of thought into developer experience. Our philosophy is that SDKs should be:

• Type safe: The SDKs we generate are fully typed, ensuring customers can catch errors early and often.
• Human readable: The SDKs we generate are easy for developers to read and debug in the customer’s IDE. We avoid convoluted abstractions.
• Batteries-included: The SDKs we generate include everything from telemetry and retries to pagination.
• Fault tolerant: Our generator is easy to use and outputs usable SDKs wherever possible. If a working SDK cannot be output, the OpenAPI document will be validated and any problems will be flagged.
• Capable of going beyond OpenAPI: Our generator covers the OpenAPI Specification and can extend where OpenAPI falls short.
• Lean: Our SDKs are meant to be powerful but lean, with minimal dependencies. We start with native language libraries and layer on third-party libraries only when the customer benefits far outweigh the cost of the extra dependency. We avoid adding unnecessary dependencies.

Language Support

• Go
• Python
• Typescript
• Java
• C#
• Ruby
• PHP
• HCL
• MCP