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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 compressed, firewall-filtered tool metadata 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/crypto-alpha-dag)
Output
A filtered, token-compressed list of matching MCP servers or A2A tools relevant to the query, with metadata such as capability descriptions, endpoint URLs, and routing information, passed through a Prompt-Guard firewall to remove malicious content.
Example use cases
Routing agent to compression tool
“I need to find an MCP server that specializes in context compression — search the tool registry for 'context compression' and tell me what's available so I can wire my swarm to the right endpoint.”
Discovering crypto intelligence agents
“Look up available A2A tools or MCP servers in the registry that handle DEX token intelligence or on-chain risk analysis — I want to route my crypto research agent to the best available option.”
Verifying an agent endpoint before use
“Before I connect to this agent endpoint https://some-agent.example.com/api, can you check the tool registry to verify it's a legitimate, indexed MCP or A2A tool and tell me what it does?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/crypto-alpha-dag?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover and route to specialized MCP servers or A2A tools at runtime, rather than hardcoding specific tool URLs. It is especially valuable in swarm orchestration scenarios where the best downstream tool for a given capability is not known in advance, or when you need firewall-filtered, token-efficient tool metadata across a broad index of 500+ servers in a single connection.
Side effects
- Empty query string returns 400 validation error
- No matching tools found for niche or misspelled capability query returns empty results
- Upstream MCP index unavailable returns 503 or timeout
- Payment not processed (x402) blocks access and returns 402 Payment Required
- Overly broad queries may return too many results with low relevance
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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