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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 an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single meta-router connection.
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/a2a-router)
Output
Returns a list of matching MCP servers or A2A tools ranked by relevance to the query, with 85% token-compressed capability manifests and Prompt-Guard firewall applied. If an endpoint URL is provided, returns verification and compliance status for that specific endpoint.
Example use cases
Discovering tools for on-chain risk analysis
“Find me MCP servers or A2A tools in the index that can do on-chain risk analysis or smart contract security — I want the top matches with token-compressed summaries.”
Routing agent swarm to GitHub audit tools
“Search your tool directory for anything that handles GitHub security audits or code repository scanning so I can wire it into my agent swarm.”
Verifying a specific MCP endpoint
“Can you check if this MCP endpoint URL https://example.dev/v1/tool is legitimate, compliant, and reachable through your safe-proxy router?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/a2a-router?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a tool. Ideal for agent orchestration layers, swarm routers, and meta-agents that need to find and safely proxy the right downstream tool at runtime. Prefer over manual tool catalogs when dealing with 500+ tool ecosystems where token budget and prompt injection safety matter.
Side effects
- Empty or vague query returns no meaningful matches
- Queried endpoint URL is unreachable or non-compliant, returning an error status
- Index may not yet include newly registered MCP servers
- Token compression may omit edge-case capability details
- x402 payment failure results in 402 response before results are returned
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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