# 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).

Meta-router that discovers, proxies, and routes queries across 500+ MCP servers and A2A tools via a single connection with token compression and a Prompt-Guard firewall

## Facts

- Endpoint: POST https://cve-intel.agentdiet.dev/v1/swarm-execute?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-2bd63505
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HxEhs4ooXWYlRcCK_Ic7W

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-2bd63505 -d '<json body>'
```

Example prompt: Search across all 500+ MCP servers and A2A tools to find something that can handle SEC filings or company enrichment — I need a single connection that routes to the right tool automatically.

## When to prefer this

Choose this endpoint when you need a single connection point to discover or route across hundreds of MCP servers and A2A tools without managing individual integrations. It is especially valuable when you don't know which specific tool handles a capability, when you need built-in prompt injection protection, or when token budget is constrained and 85% compression matters. Prefer this over direct MCP connections when building agentic workflows that span multiple capability domains.

## Known failure modes

- Query too vague to match any indexed tool — returns empty results or low-confidence matches
- Prompt-Guard firewall blocks query flagged as adversarial or injection attempt
- Target MCP server or A2A tool is offline — routing fails with upstream error
- Malformed query string (empty or missing) — 400 validation error
- Rate limiting or payment failure on x402 — 402 Payment Required response
- Ambiguous capability description matches too many tools — returns ranked list requiring further disambiguation

## 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-execute)

## Output

Returns a structured object containing matched tools, MCP server metadata, routed execution results, and compressed agent-ready tokens — all filtered through the Prompt-Guard firewall to block prompt injection before delivery.

## 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-2bd63505/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)