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SayDo
Conformance harness for MCP servers that checks whether tools do what publishers claim. It runs declared behaviors in sandboxed or local modes, records evidence, produces signed hash-chained receipts, and includes an optional MCP server for reporting what it found. Public GitHub repository created August 29, 2026.
MCP unverified
Integration
| Transport | stdio |
| Auth | none |
| Endpoint | saydo-mcp |
| Install | pip install saydo[mcp] |
Use Cases
| 01 | Verify MCP server tool declarations against observed behavior in a controlled harness |
| 02 | Generate signed receipts that summarize what a server did during a conformance run |
| 03 | Continuously detect drift between a publisher declaration and current MCP server behavior |
Tags
conformance mcp-security sandbox signed-receipts supply-chain github-actions python testing
Machine-readable: /api/servers.json
· JSON-LD schema embedded in <head>