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

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/crypto-alpha-dag?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-03d71173
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C5C0q2LFivqHG_uSWnz0P

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-03d71173
```

Example prompt: Search the MCP and A2A tool index for a capability that handles GitHub security audits — find me the best matching tool from the 500+ indexed servers.

## When to prefer this

Choose this endpoint when an agent needs to dynamically discover and route to one of many MCP or A2A tools without maintaining its own registry. Especially useful when you want a single-connection entry point to a large tool ecosystem, need token-efficient capability discovery, or want a built-in prompt injection firewall before routing to third-party agents.

## Known failure modes

- Empty query string returns validation error
- No matching tools found for obscure or overly specific query
- Indexed tool list may be stale if remote MCP servers have changed
- Prompt-Guard firewall may block queries containing adversarial or injection-like patterns
- Payment failure via x402 may prevent access
- Ambiguous query may return 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/crypto-alpha-dag)

## Output

Returns a list of matching MCP servers or A2A agent tools from a 500+ item index, including tool metadata and routing information, delivered with 85% token compression to reduce context overhead. Results may include endpoint URLs, capability descriptions, and compatibility info.

## 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-03d71173/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)