# ArgonautWorks Trending Base Tokens and Token Lookup API

> ArgonautWorks Trending Base Tokens and Token Lookup API is a paid API for AI agents from argonaut-base-token-momentum-pulse.vercel.app, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Returns trending Base-chain tokens ranked by USDC swap volume and buy/sell activity within a sealed 300-block on-chain window, with optional result limit.

## Facts

- Endpoint: GET https://argonaut-base-token-momentum-pulse.vercel.app/api/v1/momentum
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/argonautworks-trending-base-tokens-and-token-lookup-api-de8f1ed1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LaGRWaRODqOXKcfLDso6U

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 argonautworks-trending-base-tokens-and-token-lookup-api-de8f1ed1
```

Example prompt: What are the top 5 trending tokens on Base right now by USDC swap volume? Pull from the latest on-chain momentum data.

## When to prefer this

Choose this endpoint when you need real-time, onchain-verified trending token data specifically for the Base chain, ranked strictly by USDC swap volume derived from validated direct on-chain logs within a sealed 300-block window. Prefer this over general market cap or social-signal-based trending lists when you need objective, manipulation-resistant volume data grounded in actual swap events rather than off-chain price feeds or sentiment metrics.

## Known failure modes

- limit parameter out of range (must be 1–10) returns validation error
- stale or unavailable onchain data may delay or prevent response
- payment not processed (x402 payment required, $0.004 USDC per call)
- no tokens found in window if Base chain has very low activity
- network timeout if Vercel deployment is unavailable

## How this service works

Trending Base token data ranked by exact USDC swap volume and buy/sell activity, plus a bounded active-token lookup, derived from a sealed 300-block window of validated direct onchain logs.

## Output

Returns a ranked list of up to 10 trending Base-chain tokens, each with their symbol, contract address, rank, USDC swap volume as a decimal string, USDC volume in atomic units, and the start/end block numbers of the 300-block sealed analysis window.

## 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": {
      "limit": {
       "type": "integer",
       "default": 5,
       "maximum": 10,
       "minimum": 1
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "limit": 5,
  "tokens": [
   {
    "rank": 1,
    "token": {
     "symbol": "TOKEN",
     "address": "0xexample"
    },
    "usdc_volume": "1.234567",
    "usdc_volume_atomic": "1234567"
   }
  ],
  "window": {
   "end_block": 40000299,
   "start_block": 40000000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/argonautworks-trending-base-tokens-and-token-lookup-api-de8f1ed1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from argonaut-base-token-momentum-pulse.vercel.app](https://www.zero.xyz/host/argonaut-base-token-momentum-pulse.vercel.app/llms.txt)