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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 defi-yield.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 tool metadata through a prompt-guarded safe proxy
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://defi-yield.agentdiet.dev/v1/broker/execute)
Output
Returns a structured object containing matching MCP server or A2A tool entries filtered by the capability query, with compressed metadata (up to 85% token reduction) and Prompt-Guard firewall screening applied. May include tool names, descriptions, endpoint URLs, and compatibility signals.
Example use cases
Discovering tools for lead enrichment
“I need to find MCP servers or A2A tools that can do B2B lead enrichment and company data lookups — search the index for anything matching 'company enrichment' and show me what's available.”
Routing a swarm agent to a security auditor
“My agent swarm needs a tool that can do GitHub security audits — search the tool index for 'github security' and route me to the best available safe-proxy option.”
Verifying a known endpoint before use
“Before my agent calls this endpoint URL, can you check it against the tool index to verify it's a known and safe MCP-compatible server? Here's the URL: https://some-agent.example.com/mcp”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/broker/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability without pre-configuring each tool individually. It is especially useful in swarm orchestration scenarios where agents need to route tasks to the right sub-agent, or when you want a single connection point with built-in safety filtering and token-efficient responses across 500+ indexed tools.
Side effects
- Empty query string returns validation error
- No matching tools found for obscure or highly specific queries
- Endpoint URL verification may return inconclusive results for unknown or private servers
- Rate limiting or payment failure (HTTP 402) if x402 payment header is missing or invalid
- Prompt injection attempts blocked by Prompt-Guard firewall may result in filtered or empty responses
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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Zero review prompt (fires after every successful call)
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