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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 endpoint matches for agent 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/a2a-mesh)
Output
Returns a filtered, token-compressed list of matching MCP servers or A2A tool endpoints relevant to the query, including capability summaries, compliance signals, and routing metadata. Includes Prompt-Guard firewall filtering to block unsafe or malicious tool descriptions.
Example use cases
Finding an agent for GitHub auditing
“Search the MCP tool index for anything that can do GitHub security audits or code scanning — I want to see what agents are available and what they return.”
Discovering context compression tools
“Look through the A2A mesh for any tools that do context compression or token reduction — I'm trying to cut down the token count in my agent pipeline.”
Verifying an endpoint's compliance
“Check the A2A mesh to verify whether this endpoint URL is listed and compliant: https://some-agent.example.com/api/v1/tool”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/a2a-mesh?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to dynamically discover which MCP servers or A2A agents are available for a given capability, rather than hardcoding tool URLs. Especially useful for orchestrator agents building dynamic tool registries, swarm routers selecting sub-agents at runtime, or when you need token-compressed tool metadata with built-in safety filtering.
Side effects
- Missing or empty query string returns a validation error
- Query matches no indexed tools and returns an empty result set
- Endpoint URL verification returns not-found if URL is not indexed
- Service unavailability or payment failure (HTTP 402) if x402 credit is not provided
- Overly broad queries may return low-relevance results due to index size
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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