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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 whale-momentum.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 results via a single meta-router 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://whale-momentum.agentdiet.dev/v1/a2a-router)
Output
Returns a filtered, token-compressed list of matching MCP servers and A2A tool entries relevant to the capability query, processed through a Prompt-Guard firewall to remove potentially malicious content, delivered in a compact format with roughly 85% token reduction compared to raw index results.
Example use cases
Discover tools for GitHub security audits
“Search the MCP tool router for anything that covers GitHub security or code auditing — I need to find the right agent endpoint to scan a repo for vulnerabilities.”
Find company enrichment agents for B2B workflows
“Look up what MCP servers or A2A tools are available for company enrichment or B2B lead data so I can wire one into my sales automation pipeline.”
Route SEC filing requests to correct agent
“I need to find an MCP endpoint that handles SEC filings — can you query the tool discovery router with 'SEC filings' and tell me what comes back?”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/a2a-router?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to delegate a capability to, especially when the agent doesn't know which specific tool handles a given task. It is particularly useful in multi-agent swarm architectures where routing decisions must be made at runtime. Prefer this over hardcoding individual MCP server URLs when the tool landscape is large or frequently changing.
Side effects
- Empty or vague query returns no meaningful matches
- Query matches too many tools, returning an overly broad or unhelpful result set
- Prompt-Guard firewall blocks a legitimate query if it resembles a prompt injection
- The indexed tool catalog may be stale if a particular MCP server has gone offline
- Payment (x402) not satisfied results in HTTP 402 blocking the response
- Endpoint URL verification may return false compliance if the remote server is intermittently available
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"