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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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning matching endpoints with token-compressed results and prompt-injection 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://serp-extract.agentdiet.dev/v1/mcp-router)
Output
Returns a list of matching MCP servers or A2A tools relevant to the capability query, with token-compressed metadata about each endpoint, safety-filtered through a Prompt-Guard firewall. Results include tool names, descriptions, and routing information drawn from a 500+ server index.
Example use cases
Discover tools for GitHub security auditing
“I need to find MCP servers or A2A agents that can audit GitHub repositories for security issues — search the tool index for 'github security' and show me what's available.”
Find context compression agents
“Can you search the MCP router for any tools that support context compression or token reduction? I want to see what's indexed under that capability.”
Locate company enrichment endpoints
“Search the tool discovery router for 'company enrichment' — I'm trying to find an agent or MCP server that can pull B2B company data and tech stack signals.”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/mcp-router?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools exist for a given capability, rather than hardcoding tool lists. Especially useful for swarm orchestration, meta-agent routing, or building agent pipelines that need to find the right sub-agent at runtime. Prefer over manual tool registries when you need compressed, firewall-safe results from a large index.
Side effects
- Empty query string returns a validation error (query must be at least 1 character)
- Query too broad may return low-relevance or overwhelming number of results
- Endpoint URL verification may fail if the remote server is offline or non-compliant
- Payment required (HTTP 402) if x402 micropayment header is not provided
- Prompt injection attempts in query are blocked by Prompt-Guard firewall and may return a rejection
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)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"