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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 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 matching endpoints with token-compressed metadata through a prompt-guard firewall.
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://agentdiet.dev/v1/workflows/defi-token-due-diligence)
Output
Returns a JSON object containing matching MCP servers or A2A tool entries from a 500+ endpoint index, with token-compressed metadata (up to 85% compression) describing each tool's capabilities, filtered through a Prompt-Guard firewall to block malicious content.
Example use cases
Finding a context compression tool
“Search the MCP tool registry for anything that does context compression — I want to reduce token usage in my agent pipeline and need a server I can connect to.”
Verifying an endpoint is in the registry
“Can you check if https://agentdiet.dev/v1/workflows/defi-token-due-diligence is listed in the A2A tool index and what capabilities it's registered with?”
Discovering SEC filings agents
“I need an A2A tool that can pull SEC filings — search the 500-server index for anything matching 'sec filings' and give me the top results.”
Technical details
Endpoint
GEThttps://agentdiet.dev/v1/workflows/defi-token-due-diligence?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call next — especially in multi-agent orchestration or swarm routing scenarios where the right downstream tool isn't known at build time. Prefer it over static tool lists when you need live index search across 500+ servers with built-in safety filtering. Also useful to verify whether a specific endpoint URL is indexed and compliant before routing to it.
Side effects
- Empty query string returns validation error (minLength:1 not met)
- No matching tools found for query returns empty results set
- Endpoint URL verification fails if URL is not indexed
- Payment not processed (HTTP 402) if x402 micropayment not attached
- Prompt-Guard firewall blocks query if it resembles a prompt injection attempt
- Registry index may be stale for recently added or removed MCP servers
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)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"