Comparison
Black vs Selvedge
A factual side by side of two tools in Auth & Payments. Figures come from each product’s own site.
Black
ListedA black-box evaluation of how AI-generated tests find functional bugs in live APIs.
Selvedge
ListedA local MCP server that AI coding agents (Claude Code, Cursor, Copilot) call as they work, logging the why behind every change into a SQLite file under .selvedge/ next to...
| Black | Selvedge | |
|---|---|---|
| Category | Auth & Payments | Auth & Payments |
| Pricing model | Not disclosed | Open Source |
| Starting price | Not disclosed | Not disclosed |
| Free tier | No | No |
| Platforms | Not disclosed | Not disclosed |
| Techavy score | Not rated yet | Not rated yet |
About Black
A black-box evaluation of how AI-generated tests find functional bugs in live APIs. The harder question is whether those tests find bugs. Each system receives only a JSON schema and one valid sample payload, then must generate API test cases that expose failures in a live reference API. The evaluation uses APIEval-20 v1.0, a black-box benchmark contributed by KushoAI. Because KushoAI is also one of the evaluated systems, this report includes the methodology, workflow definitions, repeated-run setup, and robustness checks so readers can understand where the performance difference comes from.
About Selvedge
A local MCP server that AI coding agents (Claude Code, Cursor, Copilot) call as they work, logging the why behind every change into a SQLite file under .selvedge/ next to your code. Selvedge is a git blame for the why, a local MCP server your agent (Claude Code, Cursor, Copilot) calls as it works, recording the intent behind each change in the moment it makes it, not reconstructing it from the diff afterward.
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