# 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 whale-momentum.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

Searches and routes across 500+ indexed MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall

## Facts

- Endpoint: POST https://whale-momentum.agentdiet.dev/v1/bundle-execute?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: whale-momentum.agentdiet.dev
- Website: https://whale-momentum.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/whale-momentum-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-7de917e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k91rfwy-Aj6IKsBGLeJ8l

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 whale-momentum-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-7de917e4 -d '<json body>'
```

Example prompt: Search the MCP and A2A tool index for anything that handles 'SEC filings' — I want to find the best available tool and route through it safely without blowing my token budget.

## When to prefer this

Choose this endpoint when your agent needs to discover and call one of many MCP or A2A tools without managing individual integrations — especially when token budget is tight (85% compression), security against prompt injection is required, or you want a single connection point to 500+ indexed tools. Less suitable when you already know the exact endpoint and need to call it directly without routing overhead.

## Known failure modes

- Query too vague returns zero matches
- Prompt-Guard firewall rejects payload containing injection patterns
- Downstream MCP server unavailable or returns error
- Payment failure if x402 micropayment not properly configured
- Idempotency key collision causing unexpected response replay

## 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://whale-momentum.agentdiet.dev/v1/bundle-execute)

## Output

Returns matched MCP servers or A2A tool endpoints relevant to the query, along with a compressed, firewall-screened response payload. The result is a generic object containing discovered tool metadata, routing details, and sanitized output from the proxied tool call.

## 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/whale-momentum-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-7de917e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whale-momentum.agentdiet.dev](https://www.zero.xyz/host/whale-momentum.agentdiet.dev/llms.txt)