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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 for tool discovery and routing
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/workflows)
Output
Returns a structured object listing matching MCP servers and A2A tools for the given query, with compressed descriptions (up to 85% token reduction), firewall-filtered metadata, SLA signals, and routing information to help an agent select and connect to the right tool.
Example use cases
Routing agent queries to right tool
“I need to find which MCP server in the index handles GitHub security auditing — search for 'github security' and tell me what tools are available and what they do.”
Discovering B2B lead enrichment agents
“Search the A2A and MCP tool index for anything related to 'company enrichment' or B2B lead data so I can wire up the right tool for my sales pipeline agent.”
Verifying an endpoint before swarm use
“I have this endpoint URL — can you check the agentdiet tool router to verify it's a known, compliant MCP or A2A endpoint before I add it to my agent swarm?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/workflows?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool is best suited for a given capability at runtime, rather than hardcoding tool destinations. Especially useful in multi-agent swarms where the right downstream tool is not known in advance, or when you want prompt-injection firewall protection on discovered tools before proxying requests through them.
Side effects
- Empty query string returns validation error (minLength:1)
- Query matches no indexed tools — returns empty results set
- Upstream index unavailable — service returns 503 or timeout
- Payment not provided or invalid — HTTP 402 response blocking access
- Malformed query causes unexpected result shape due to loose response schema
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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