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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 2026-10-23).
Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single 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/broker/execute)
Output
Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools from the 500+ item index, filtered through the Prompt-Guard firewall. Each result includes tool descriptors, capability summaries, and routing metadata sufficient for an agent to select and invoke the appropriate downstream tool.
Example use cases
Swarm routing for on-chain risk
“My agent swarm needs to analyze on-chain risk for a DeFi token — search the MCP meta-index for tools that handle 'on-chain risk' or 'smart contract security' and route me to the best available server.”
Discovering email verification tools
“Find me all the MCP servers in the index that support email verification or B2B lead enrichment — I want to know which ones are available so I can pick the right one for my outreach pipeline.”
Safe-proxying a specific tool endpoint
“I have this MCP endpoint URL I found online — can you run it through the broker to verify it's safe and get a compressed, firewall-cleared description of what it actually does?”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/broker/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool is best suited for a given capability at runtime, especially in multi-agent swarm architectures where routing decisions must be made programmatically. Prefer this over hardcoded tool lists when the capability landscape changes frequently or when safety filtering (Prompt-Guard) is required before proxying to third-party tools. It is ideal for orchestrators that need a single connection point to 500+ tools with token-budget constraints.
Side effects
- Empty query string returns 400 validation error
- No matching tools found returns empty results object
- Firewall blocks malicious or prompt-injection-containing queries
- Downstream MCP server unavailable causes partial results
- x402 payment failure prevents execution
- Overly broad query returns too many low-relevance results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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