# 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 2026-10-23).

Searches and routes queries across 500+ indexed MCP servers and A2A tools via a single connection with token compression and prompt firewall protection.

## Facts

- Endpoint: POST https://cve-intel.agentdiet.dev/v1/x402-broker?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-c81dbeca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__9x9JHvYQ2KhWu3agVlG4

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-c81dbeca -d '<json body>'
```

Example prompt: Search the meta-router for any MCP servers or A2A tools that handle GitHub security audits and route my query through the safe proxy with token compression enabled.

## When to prefer this

Choose this endpoint when an agent needs to discover and route to any of 500+ MCP servers or A2A tools via a single connection rather than maintaining multiple integrations. Ideal for agent swarms that need compressed tool metadata to reduce token overhead, or when prompt firewall protection is required before forwarding queries to third-party tools.

## Known failure modes

- Query too vague returns no matching tools
- Prompt-Guard firewall blocks query flagged as injection attempt
- Upstream MCP server unavailable or timeout
- Invalid or unreachable endpoint URL when used in verification mode
- Payment not processed (x402 payment required before response)

## 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/x402-broker)

## Output

Returns a list of matching MCP servers or A2A tools relevant to the query, with compressed tool metadata (85% token reduction), safety-filtered through Prompt-Guard, and routed capability output or verified endpoint status.

## 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-c81dbeca/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)