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Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from onchain-risk.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches a meta-index of 500+ MCP servers and A2A tools by capability keyword or URL, returning matching endpoints with token-compressed results and Prompt-Guard firewall protection.
Price / call$0.01
Success—
StatusUnknown
How this service works
Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://onchain-risk.agentdiet.dev/api/mcp/audit)
Output
Returns a token-compressed list of matching MCP servers or A2A tools relevant to the capability query, including endpoint metadata, compliance status, and routing information. Results are filtered through a Prompt-Guard firewall to block malicious payloads.
Example use cases
Discover tools for SEC filing analysis
“Search the MCP meta-router for any tools or A2A endpoints that can pull SEC 10-K or 10-Q filings — I need to wire up my research agent to the right server.”
Verify a specific MCP endpoint URL
“Can you check whether https://some-agent-service.example.com/mcp is a valid, compliant MCP endpoint? Run it through the tool discovery router to verify.”
Find agent tools for B2B lead enrichment
“I'm building a sales automation swarm and need to find MCP servers that handle B2B company enrichment or contact data extraction — search the index and tell me what's available.”
Technical details
Endpoint
GEThttps://onchain-risk.agentdiet.dev/api/mcp/audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to delegate a subtask to, rather than hardcoding a tool. Ideal for swarm architectures, meta-agents, or orchestration layers that need runtime tool routing across a broad index of 500+ services. Prefer this over manually curating a tool registry or calling individual service directories.
Side effects
- Empty query string returns validation error
- No matching tools found for obscure or misspelled capability queries
- Endpoint URL verification returns non-compliant if target is offline or non-standard
- Token compression may strip nuanced metadata for complex tool descriptions
- Rate limiting or payment failure (HTTP 402) if x402 payment is not attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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