# 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 proxies 500+ MCP servers and A2A agent tools through a single connection, with token compression and prompt injection protection.

## Facts

- Endpoint: GET https://cve-intel.agentdiet.dev/v1/universal-mcp-gateway?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-d437b582
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pVS24k3gzH1NYqUr9q_pq

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-d437b582
```

Example prompt: Search for MCP servers or A2A tools that can handle SEC filings and company enrichment — I want to find what's available through the agentdiet universal gateway so I can route my agent to the right tool.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover or route to one of hundreds of MCP servers or A2A tools without maintaining individual connections to each. Ideal for agent orchestration systems, swarm architectures, or when you need prompt-injection-safe proxying and token-efficient tool manifests from a single meta-router rather than managing 500+ integrations directly.

## Known failure modes

- Empty query returns validation error
- No matching tools found for niche query returns empty result set
- Upstream MCP server unavailable causes partial results
- Payment required (HTTP 402) if x402 micropayment not included
- Rate limiting if query volume exceeds plan limits

## 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/universal-mcp-gateway)

## Output

Returns a list of matching MCP server endpoints and A2A tools relevant to the query, with compressed tool manifests (85% token reduction), endpoint metadata, and safety-filtered results that have passed through the Prompt-Guard firewall.

## 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-d437b582/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)