# Arkham x402 Trending Tokens

> Arkham x402 Trending Tokens is a paid API for AI agents from api.arkm.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).

Returns a ranked list of currently trending cryptocurrency tokens with their names, symbols, and pricing identifiers from Arkham's market intelligence platform.

## Facts

- Endpoint: POST https://api.arkm.com/x402/token/trending
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arkham-x402-trending-tokens-5e0c3e83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KIDfLwnwUyCj8RVb0eUpH

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 arkham-x402-trending-tokens-5e0c3e83 -d '<json body>'
```

Example prompt: Pull the current list of trending tokens from Arkham right now — I want to see which coins are getting the most attention along with their symbols and pricing IDs.

## When to prefer this

Choose this endpoint when you need Arkham's proprietary wallet-intelligence-informed trending signals rather than generic volume-based trending lists from exchanges. Ideal for agents that want to know which tokens sophisticated on-chain traders are focusing on, using Arkham's unique entity-labeling and wallet tracking data as a signal source. Prefer this over CoinGecko or CoinMarketCap trending endpoints when on-chain behavioral data is more valuable than raw price/volume metrics.

## Known failure modes

- Payment failure (insufficient USDC balance for x402 $0.20 per-call fee)
- Invalid or missing API key returns 401 Unauthorized
- Service unavailability returns 5xx error with no token list
- Empty array returned if Arkham's trending engine has no data
- Rate limiting if too many calls are made in a short window

## How this service works

Get Arkham trending tokens. $0.20 per call.

## Output

A JSON array of trending token objects, each containing the token's full name (e.g. 'Bitcoin'), its ticker symbol (e.g. 'btc'), and an identifier object with a pricingID (e.g. 'bitcoin') that can be used to look up further price or market data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "properties": {},
     "additionalProperties": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "number"
       },
       {
        "type": "boolean"
       },
       {
        "type": "array",
        "items": {
         "anyOf": [
          {
           "type": "string"
          },
          {
           "type": "number"
          },
          {
           "type": "boolean"
          }
         ]
        }
       }
      ]
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "array",
     "items": {},
     "$schema": "https://json-schema.org/draft/2020-12/schema"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {
   "name": "Bitcoin",
   "symbol": "btc",
   "identifier": {
    "pricingID": "bitcoin"
   }
  },
  {
   "name": "Ethereum",
   "symbol": "eth",
   "identifier": {
    "pricingID": "ethereum"
   }
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arkham-x402-trending-tokens-5e0c3e83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.arkm.com](https://www.zero.xyz/host/api.arkm.com/llms.txt)