# AgentToll Market Brief

> AgentToll Market Brief is a paid API for AI agents from agenttoll.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns a one-call crypto market summary covering BTC/ETH/SOL prices, Base network gas, and market sentiment in a single response

## Facts

- Endpoint: GET https://agenttoll.app/api/brief
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttoll-market-brief-38ee1364
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B7aDqBjLEoiHyXlCbMAmv

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 agenttoll-market-brief-38ee1364
```

Example prompt: Give me a quick market brief — current prices for BTC, ETH, and SOL, the Base gas price, and overall market sentiment.

## When to prefer this

Choose this endpoint when you need a quick, consolidated market snapshot across prices, gas, and sentiment in a single API call rather than making separate requests to price APIs, gas trackers, and sentiment feeds. Ideal for agents that need a low-latency, low-cost market context check before executing trades, generating reports, or briefing users.

## Known failure modes

- Invalid or unsupported ticker symbols return an error or empty data for those symbols
- Payment failure (402) if x402 micropayment is not properly attached
- More than 6 symbols requested may be rejected or truncated
- Network or upstream data provider outage returns a 5xx error
- Malformed query parameter format causes a 400 bad request

## How this service works

Market brief in one call: prices (BTC, ETH and SOL by default, or ?symbols=eth,degen), Base gas, and market sentiment

## Output

A structured JSON object containing current spot prices for up to 6 specified crypto tickers (defaulting to BTC, ETH, SOL), the current Base network gas price, and an aggregated market sentiment indicator — all in a single response.

## 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": {
      "symbols": {
       "type": "string",
       "description": "Optional. Comma-separated tickers, up to 6. Default btc,eth,sol"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "at": "2026-08-05T13:31:59.006Z",
  "majors": {
   "eth": {
    "usd": 1867.28,
    "symbol": "eth",
    "change24h": -0.1
   }
  },
  "baseGas": {
   "chain": "base",
   "latestBlock": 49573686,
   "gasPriceGwei": 0.006
  },
  "sentiment": {
   "value": 27,
   "yesterday": 25,
   "classification": "Fear"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttoll-market-brief-38ee1364/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttoll.app](https://www.zero.xyz/host/agenttoll.app/llms.txt)