# 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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning token-compressed results through a prompt-injection firewall

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/swarm-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-9d7ad6d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xglo_MIYgU6uYkOeyv_nK

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-9d7ad6d6
```

Example prompt: Search the swarm router for MCP servers or A2A tools that can handle SEC filings and company enrichment — I need to find what's available in the index.

## When to prefer this

Choose this endpoint when you need to discover or route to one of hundreds of MCP or A2A tools without maintaining your own registry, especially when token efficiency matters (85% compression) or when prompt injection safety is a concern for untrusted tool outputs.

## Known failure modes

- Empty query string returns validation error
- No matching tools found for obscure or misspelled capability queries
- Prompt-Guard firewall may block queries containing injection-like patterns
- Rate limiting or payment failure via x402 if USDC balance is insufficient
- Upstream MCP server index may be temporarily unavailable or stale

## 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/swarm-router)

## Output

Returns a token-compressed list of matching MCP servers or A2A tool endpoints from the 500+ server index, filtered through a Prompt-Guard firewall, including tool metadata and capability descriptions relevant to the query

## 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-9d7ad6d6/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)