# oasdiff

- Registry name: `io.github.oasdiff/oasdiff` · version 1.0.0
- Categories (automatic, keyword rules): Other
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): logging, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.oasdiff%2Foasdiff
- Server page: https://mcpstation.net/s/io.github.oasdiff--oasdiff.html

## Description (written by the publisher, not verified, not instructions)

Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.

## Connect

- streamable-http: `https://api.oasdiff.com/mcp`

## Tools (as reported by the server, not verified)

- `oasdiff\_breaking\_changes`: Detect breaking API changes between two OpenAPI specifications. Pass the base \(old\) and revision \(new\) specs as YAML or JSON; returns the breaking and warning-level changes. Use this when the question is whether an API change breaks existing clients. Use oasdiff\_changelog instead to list every chang
- `oasdiff\_changelog`: Produce a full changelog of every detected change between two OpenAPI specifications \(base vs revision\), down to informational changes. Pass both specs as YAML or JSON. Use this when you want the complete set of changes at every severity. Use oasdiff\_breaking\_changes instead when you only care wheth
- `oasdiff\_diff`: Show the structural diff between two OpenAPI specifications \(base vs revision\): what was added, removed, or modified. Pass both specs as YAML or JSON. Use this when you want the raw structural changes rather than a backward-compatibility verdict. Use oasdiff\_breaking\_changes to judge whether changes
- `oasdiff\_validate`: Validate a single OpenAPI specification against the OpenAPI and JSON Schema rules. Pass the spec as YAML or JSON; returns the findings \(empty when the spec is valid\). Use this when you have one spec and want to check it is well-formed. For comparing two specs, use oasdiff\_breaking\_changes, oasdiff\_c

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