Openapi Breaking Change Detection
Spec0
See who an API change breaks. Serve specs to AI agents.
AI coding assistants trust your API specs completely, even when they're out of date. Spec0 keeps every OpenAPI spec in one registry, with owners, versions, and the teams that depend on each API. Breaking changes are flagged on every pull request, before anyone merges. Cursor and Claude Code query Spec0 over MCP and get just the operation they need, about 300 tokens from the latest version, instead of a whole spec pasted into the chat. Your specs stay in your Git repo. Mock servers included. Open-source CLI, free tier.
About Spec0
AI coding assistants trust your API specs completely, even when they're out of date. Spec0 keeps every OpenAPI spec in one registry, with owners, versions, and the teams that depend on each API. Breaking changes are flagged on every pull request, before anyone merges. Cursor and Claude Code query Spec0 over MCP and get just the operation they need, about 300 tokens from the latest version, instead of a whole spec pasted into the chat. Your specs stay in your Git repo. Mock servers included. Open-source CLI, free tier.
Upvotes over time
Last 24 hoursTotal upvotes
3
Last 24h
+3
Peak hour
3 PM+2
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