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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 serp-extract.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches and routes across 500+ indexed MCP servers and A2A tools by capability query, returning token-compressed results through a prompt-injection firewall
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://serp-extract.agentdiet.dev/api/mcp/audit)
Output
Returns a token-compressed list of matching MCP servers or A2A tools ranked by relevance to the query, including endpoint metadata, compliance status, and capability tags — filtered through a Prompt-Guard firewall to block injected payloads.
Example use cases
Discover MCP tools for code security
“Find me all MCP servers in the registry that handle GitHub security auditing or supply-chain vulnerability scanning — I want to wire them into my coding agent swarm.”
Verify endpoint compliance before routing
“Check if this URL is a valid, compliant A2A or MCP endpoint before I add it to my agent pipeline: https://some-mcp-server.example.com/api/mcp”
Route to token-efficient web search tools
“Search the tool registry for MCP endpoints that support live web search or news grounding, and make sure results are token-compressed so I don't blow my context window.”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/api/mcp/audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover and route to the right MCP server or A2A tool at runtime without hardcoding tool lists — especially useful for swarm architectures, token-budget-conscious pipelines, or when you need firewall-protected tool discovery across a broad index of 500+ endpoints.
Side effects
- Empty or vague query returns no matches or irrelevant results
- Queried endpoint URL is unreachable or non-compliant, returning a validation error
- Rate limiting or payment failure (HTTP 402) if per-call budget is exceeded
- Firewall blocks response if a discovered tool's metadata contains a prompt injection pattern
- Registry index may lag real-time availability of newly registered MCP servers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of items to return per page (1-100) |
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
| cursor | string | Opaque pagination cursor for fetching the next page |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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