# SDK Wars

> SDK Wars is a free head-to-head SDK comparison tool. Pick two SDKs, generators or API client approaches, choose your criteria and get a verdict with the reason and a source for every call. No sign-up.

Criteria: Language support, Typing, Auth handling, Retries, Pagination, Error handling, Maintenance, MCP readiness. Levels: Strong (3), Solid (2), Partial (1), Weak (0); Not verified is left out of the score. Ratings for named tools link to the tool's own documentation.

## Main pages

- [Compare two SDKs head to head](https://sdkwars.com): the tool, working on the home page
- [Comparison tool](https://sdkwars.com/compare): run a matchup and share its link
- [How we judge an SDK](https://sdkwars.com/criteria): each criterion, its levels and how to check it
- [Generated vs hand-written SDKs](https://sdkwars.com/generated-vs-handwritten): when each approach wins
- [SDKs when agents are the caller](https://sdkwars.com/sdks-in-the-mcp-era): tool definitions, scoped credentials, identity and audit
- [FAQ](https://sdkwars.com/faq)

## Matchups

- [Hand-written SDK vs OpenAPI Generator](https://sdkwars.com/vs/handwritten-vs-openapi-generator): A hand-written SDK against OpenAPI Generator on language support, typing, auth, retries, pagination and maintenance, with the reason for every call.
- [OpenAPI Generator vs Microsoft Kiota](https://sdkwars.com/vs/openapi-generator-vs-kiota): Two open-source OpenAPI client generators head to head on languages, typing, auth, retries, errors and maintenance, with sources for every call.
- [No SDK (raw HTTP) vs hand-written SDK](https://sdkwars.com/vs/raw-http-vs-handwritten): Should you ship an SDK at all? Raw HTTP against a hand-written SDK on typing, auth, retries, pagination, errors and maintenance.
- [Hand-written SDK vs MCP server](https://sdkwars.com/vs/handwritten-sdk-vs-mcp-server): When the caller is an AI agent: a hand-written SDK against an MCP server over your API, including MCP readiness, auth and maintenance.
- [Speakeasy vs OpenAPI Generator](https://sdkwars.com/vs/speakeasy-vs-openapi-generator): A commercial SDK generator against the open-source standard on languages, typing, auth, retries, pagination and maintenance, with sources for every call.

## Blog

- [Blog](https://sdkwars.com/blog): the first posts are on their way