# 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 cve-intel.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 routing results through a prompt-guarded meta-router

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/mcp-router?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: cve-intel.agentdiet.dev
- Website: https://cve-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/cve-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-00a9b627
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pCBKW5Zg7gP2nA3imjNAt

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cve-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-00a9b627
```

Example prompt: Search the MCP tool index for servers that handle SEC filings and company enrichment — I want to find the best available tool for that capability.

## When to prefer this

Use this endpoint when an AI agent needs to discover which MCP server or A2A tool can handle a specific capability, rather than hard-coding a single tool. Ideal for swarm architectures where agents dynamically route tasks to the best available tool. Preferred over manual tool registries when you need prompt-injection protection on routed content and want a single connection point to 500+ tools.

## Known failure modes

- Empty or vague query returns no meaningful matches
- Index may not cover niche or newly added MCP servers
- 85% compression may omit details needed for edge cases
- Prompt-Guard firewall may block legitimate but unusual queries
- Payment failure via x402 prevents access
- Upstream MCP servers may be offline even if indexed
- Query too broad returns too many low-relevance results

## 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://cve-intel.agentdiet.dev/v1/mcp-router)

## Output

Returns a list of matching MCP servers or A2A tools relevant to the capability query, with compressed metadata (85% token reduction) including tool names, descriptions, endpoint URLs, and routing information, filtered through a Prompt-Guard firewall to remove malicious content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cve-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-00a9b627/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cve-intel.agentdiet.dev](https://www.zero.xyz/host/cve-intel.agentdiet.dev/llms.txt)