# Crest Trending Tokens

> Crest Trending Tokens is a paid API for AI agents from data.crestsystems.ai, paid per call via x402, $0.002/call, status down (last checked 2026-09-15).

Fetches the top 15 trending cryptocurrencies ranked by search interest and trading volume, returning symbol, name, market cap rank, and BTC-denominated price.

## Facts

- Endpoint: GET https://data.crestsystems.ai/data/trending
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/data-crestsystems-ai-e6f6629d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wipwYrenNuVVBNuHDvw6a

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 data-crestsystems-ai-e6f6629d
```

Example prompt: What are the top 15 trending cryptocurrencies right now — ranked by search interest and trading volume — with their names, symbols, market cap ranks, and BTC prices?

## When to prefer this

Use this endpoint when you need a quick snapshot of which cryptocurrencies are gaining the most attention right now based on both search interest and trading volume. Prefer this over the prices endpoint when trending/buzz signal matters more than comprehensive price coverage. Best for detecting emerging market momentum or surfacing tokens the market is paying attention to at this moment.

## Known failure modes

- Upstream data source unavailable — may return 503 or empty list
- Payment not processed — 402 response if x402 payment header missing or insufficient
- Rate limiting if called too frequently — 429 response
- Data may be slightly stale if upstream provider cache not refreshed

## How this service works

Crest · trending_tokens -- Fetch top 15 trending cryptocurrencies ranked by search interest and trading volume. Returns symbol, name, market cap rank, and BTC-denominated price.

## Output

Returns a list of 15 trending cryptocurrencies, each with token symbol, full name, market cap rank, and current price denominated in BTC, ranked by a combination of search interest and trading volume.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/data-crestsystems-ai-e6f6629d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data.crestsystems.ai](https://www.zero.xyz/host/data.crestsystems.ai/llms.txt)