# 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 shopify-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed tool metadata through a prompt-guarded proxy router

## Facts

- Endpoint: GET https://shopify-intel.agentdiet.dev/v1/mcp-router?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-intel.agentdiet.dev
- Website: https://shopify-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-082c4d1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UVmMHwG99EOiAw6jyvaU0

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 shopify-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-082c4d1a
```

Example prompt: Search the MCP tool index for any servers that handle SEC filings or company financial data enrichment — I want to find available tools I can route through.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover new MCP or A2A tools at runtime rather than relying on a static tool registry. Especially useful for swarm architectures where agents need to self-route to the best available capability, or when you want prompt-injection protection built into the discovery layer. Prefer this over manually browsing MCP marketplaces or hardcoding tool lists.

## Known failure modes

- Empty or vague query returns no relevant tool matches
- Unrecognized endpoint URL in verification mode returns null or error status
- Overly broad queries may return a large unfiltered list requiring downstream filtering
- Service may return stale index data if upstream MCP registries haven't been recently crawled
- HTTP 402 payment required if x402 credits are exhausted

## 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://shopify-intel.agentdiet.dev/v1/mcp-router)

## Output

Returns a structured object containing matched MCP server or A2A tool entries relevant to the query, with token-compressed capability descriptions filtered through a Prompt-Guard firewall to prevent injection attacks. May also return compliance/verification status when an endpoint URL is provided as 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/shopify-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-082c4d1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-intel.agentdiet.dev](https://www.zero.xyz/host/shopify-intel.agentdiet.dev/llms.txt)