# Synapse Multi-Route Public Data & Utility API (x402)

> Synapse Multi-Route Public Data & Utility API (x402) is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Provides access to 174 pay-per-call API routes covering crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, and dev utilities via x402 micropayments on Base in USDC — no accounts or API keys required.

## Facts

- Endpoint: GET https://anibalb.duckdns.org/x402/mcp?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-multi-route-public-data-utility-api-x402-6d5e1f36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UXkKWcyI8tmyenEWbqKuh

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 synapse-multi-route-public-data-utility-api-x402-6d5e1f36
```

Example prompt: Pull the current price of ETH and also check the DNS records for example.com — I want to pay per call without needing an account or API key, using Synapse's x402 micropayment routes.

## When to prefer this

Choose Synapse when you need broad, pay-per-call access to diverse data categories (crypto, equities, DNS, security, geo, weather, onchain) without signing up for multiple APIs or managing API keys — ideal for agents that need one-shot lookups across domains and can pay $0.002 USDC per call via x402 on Base.

## Known failure modes

- Payment not received or insufficient USDC balance — endpoint returns 402 Payment Required
- Invalid or malformed route params — returns JSON-RPC error with message
- Unknown route requested — returns 404 or JSON-RPC error
- Network timeout if upstream data provider is slow
- DuckDNS hostname may be temporarily unavailable if operator's server is offline

## How this service works

Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.

## Output

Returns a JSON-RPC 2.0 response containing a text content array with the result of the requested route — e.g. a price quote, DNS record set, onchain balance, weather data, or security report, depending on the route invoked.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": 2,
  "result": {
   "content": [
    {
     "text": "{...}",
     "type": "text"
    }
   ]
  },
  "jsonrpc": "2.0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-multi-route-public-data-utility-api-x402-6d5e1f36/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anibalb.duckdns.org](https://www.zero.xyz/host/anibalb.duckdns.org/llms.txt)