# Base Scout Price Feed

> Base Scout Price Feed is a paid API for AI agents from base-scout.botty4541.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the current USD price for a specified crypto token (ETH, USDC, WBTC, SOL, etc.) using on-chain Base chain data, billed at 0.01 USDC per call via x402.

## Facts

- Endpoint: GET https://base-scout.botty4541.workers.dev/service/price
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-scout-price-feed-cdbd76cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jd-sr1nwiPHnRCmRL_amg

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 base-scout-price-feed-cdbd76cf
```

Example prompt: What's the current USD price of ETH? Use the Base Scout price endpoint and charge my wallet the 0.01 USDC fee.

## When to prefer this

Use this endpoint when an AI agent needs a real-time USD price for a specific Base-ecosystem or major crypto token and is already operating on the Base chain with an x402-enabled wallet. Ideal for lightweight, pay-per-call price lookups without committing to a subscription-based oracle. Best suited for bots, agents, or dashboards that need occasional price checks on a defined set of supported tokens.

## Known failure modes

- Invalid or unsupported token symbol returns an error (only ETH, USDC, BASE, WBTC, SOL, DEEPSEEK, AAVE, UNI, DAI are supported)
- Missing required symbol parameter returns a 400-style error
- Insufficient wallet balance to cover the 0.01 USDC x402 payment results in payment failure
- Network or Cloudflare Worker downtime causes 5xx errors
- Price feed data may be stale if underlying oracle is delayed

## How this service works

Pay-per-call Base chain utilities for AI agents and bots: tx status, wallet balances, token metadata, prices. 0.01 USDC per call on Base (x402). Price: 0.01 USDC per call on Base (x402).

## Output

Returns a JSON object with a boolean ok field, a data object containing the token's symbol and its current USD price as a number, plus the payer wallet address and the on-chain transaction hash for the 0.01 USDC x402 payment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "symbol"
 ],
 "properties": {
  "symbol": {
   "type": "string",
   "description": "ETH, USDC, BASE, WBTC, SOL, DEEPSEEK, AAVE, UNI, DAI"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ok": {
   "type": "boolean"
  },
  "data": {
   "type": "object",
   "properties": {
    "usd": {
     "type": "number"
    },
    "symbol": {
     "type": "string"
    }
   }
  },
  "payer": {
   "type": "string"
  },
  "transaction": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-scout-price-feed-cdbd76cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from base-scout.botty4541.workers.dev](https://www.zero.xyz/host/base-scout.botty4541.workers.dev/llms.txt)