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mcp/harbor
Verified official

Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory MCP

v7.0.17 changelog · 1

dev.agentdiet/assay

Live behavioral security verifier, schema auditor, and trust oracle for A2A, MCP & x402 agents.

transport:streamable-http tools:4
View source Website

Target client

run in your project directory 

claude mcp add --transport http assay https://assay.agentdiet.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

assay_preflight

assay preflight

assay_probe

assay probe

assay_verify_delivery

assay verify delivery

assay_get_ledger_policy

assay get ledger policy

All 4 tools, one page each

2 prompts you invoke yourself

10 resources you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.