# 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 and routes through 500+ indexed MCP servers and A2A tools via a single connection, with token compression and prompt injection firewall

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/broker/execute?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-8d782f17
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FLC_ZDaYaafc8FovIT8CO

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-8d782f17
```

Example prompt: Search the MCP tool index for any available agents or servers that can handle GitHub security audits and return the best matching capabilities with their connection details.

## When to prefer this

Choose this endpoint when you need to discover which MCP servers or A2A tools are available for a given capability without knowing specific server URLs in advance. It is especially useful for dynamic agent orchestration, swarm routing scenarios, or when building pipelines that need to find and connect to the best available tool for a task. Prefer this over direct endpoint calls when you want token-compressed tool manifests or need prompt injection protection on discovered tools.

## Known failure modes

- No matching tools found for the query — returns empty results
- Query too vague to match specific capabilities — returns broad or irrelevant results
- Indexed server temporarily unavailable — routing may fail for specific tools
- Malformed query string causes validation error
- Rate limit exceeded on $0.01/call pricing tier

## 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/broker/execute)

## Output

Returns a list of matching MCP servers or A2A tool endpoints relevant to the search query, including capability descriptions, connection details, and compressed tool manifests with up to 85% token reduction. Results pass through a Prompt-Guard firewall to filter prompt injection risks.

## 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-8d782f17/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)