# 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 2026-10-23).

Searches and routes requests across 500+ MCP servers and A2A tools with token compression and prompt-injection firewall protection

## Facts

- Endpoint: POST https://shopify-intel.agentdiet.dev/v1/a2a-router?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-0ba07b88
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rjnpJ5avkeJxNYTQ64wRa

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-0ba07b88 -d '<json body>'
```

Example prompt: Search across all available MCP servers and A2A tools to find something that handles 'company lead enrichment' — I need the best matching endpoint I can route my agent to.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover the right tool or MCP server for a given capability at runtime, rather than hardcoding a specific endpoint. It is especially valuable in swarm or multi-agent architectures where capabilities are resolved dynamically, or when you want a single connection point with built-in token compression and prompt-injection protection across a large tool ecosystem.

## Known failure modes

- Empty or too-vague query returns low-relevance or no matches
- Query for a niche capability not indexed in the 500+ tool set returns empty results
- Network or upstream MCP server unavailability causes routing failures
- Payment not included or rejected results in HTTP 402 error blocking the request
- Malformed query (minLength violation) returns validation error

## 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/a2a-router)

## Output

Returns a ranked list of matching MCP server or A2A tool endpoints relevant to the query, with token-compressed metadata, endpoint URLs, capability descriptions, and routing recommendations. Results pass through a Prompt-Guard firewall to prevent injection attacks in the returned payloads.

## 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-0ba07b88/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)