# Synapse Trending Crypto

> Synapse Trending Crypto 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).

Returns a list of currently trending cryptocurrency tokens with price data

## Facts

- Endpoint: GET https://anibalb.duckdns.org/x402/trending-crypto?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-trending-crypto-40e39199
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5LHxHmMipOdgWxnhnxfQU

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-trending-crypto-40e39199
```

Example prompt: What cryptocurrencies are trending right now? Show me the hot tokens with their symbols and BTC prices.

## When to prefer this

Choose this endpoint when you need a no-account, no-API-key, pay-per-call lookup of currently trending crypto tokens paid in USDC via x402 on Base. Prefer it for lightweight agentic workflows where you want real-time trending coin discovery without subscription overhead. If you need deep market metrics (price history, OHLCV, order books), a dedicated market data API like CoinGecko or CoinMarketCap would be more appropriate.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 Payment Required
- Network or DNS instability on duckdns.org host causing timeouts or connection errors
- Upstream crypto data source unavailable leading to empty or stale trending list
- Malformed response if the underlying data provider returns unexpected schema

## 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 array of trending cryptocurrency tokens, each with the token name, ticker symbol, an internal coin ID, and the current price denominated in BTC (e.g. [{"name":"evmzone","symbol":"EVZ","coin_id":"evmzone","price_btc":1e-8}]).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "trending": [
   {
    "name": "evmzone",
    "symbol": "EVZ",
    "coin_id": "evmzone",
    "price_btc": 1e-8
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-trending-crypto-40e39199/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)