# Base Address USDC Payment Feed

> Base Address USDC Payment Feed is a paid API for AI agents from agent-data.centorprat.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).

Returns real-time USDC payment events (in and out) for a given Base address since a cursor, with x402/Bazaar seller labels where applicable

## Facts

- Endpoint: GET https://agent-data.centorprat.workers.dev/agent/payments-feed?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-address-usdc-payment-feed-bf51d011
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ReALKO-G6zpqAfwdn2C2L

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-address-usdc-payment-feed-bf51d011
```

Example prompt: Check for any new USDC payments in or out of Base address 0xAbC123... since the last cursor I gave you, and flag which ones are x402 Bazaar seller payments.

## When to prefer this

Choose this endpoint when you need a real-time, cursor-based incremental feed of USDC payments for a specific Base address, especially when tracking x402/Bazaar seller payments. It is ideal for agent wallets that need to react to new payments without re-processing historical data. Prefer it over general blockchain explorers when you need x402 seller labeling out of the box and low-latency polling via cursor.

## Known failure modes

- Missing or invalid Base address returns a validation error
- Invalid ISO cursor format causes a parsing error or returns all events
- Limit outside 1-200 range returns a validation error
- Address with no USDC activity returns an empty event list
- Network or worker downtime returns a 5xx error

## How this service works

Pay-per-call data and tools for AI agents, $0.002-0.01 per call in USDC via x402 (Base, Polygon or Solana), no account or API key; MAX tiers ($0.05-0.25) run deeper jobs. Agent toolkit: web search, search + read top pages, any page as clean markdown with a prompt-injection check, which-x402-API-to-call recommender, seller check. Data: Google Maps places with contacts, YouTube video data and transcripts, job listings (Indeed, LinkedIn, 13 boards), Google Ads Transparency, TikTok comments, Pinterest, Airbnb, Redfin, AliExpress, app stores, live sports, website and SEO checks, Shopify store tech stacks, and onchain token / address risk checks.

## Output

A paginated list of USDC payment events for the given Base address, each including direction (in/out), amount, timestamp, counterparty, and — where the payment is an x402 transaction — the associated Bazaar seller/listing label. Also returns a cursor value to use in the next poll for incremental updates.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "limit": {
       "type": "string",
       "description": "1-200 (default 50)"
      },
      "since": {
       "type": "string",
       "description": "ISO time cursor from the previous response"
      },
      "address": {
       "type": "string",
       "description": "Base address 0x..."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "cursor": "2026-10-23T20:18:31.000Z",
  "address": "0x8d38...",
  "payments": [
   {
    "at": "2026-10-23T20:18:31.000Z",
    "usd": 0.002,
    "x402": true,
    "direction": "in",
    "counterparty": "0x..."
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-address-usdc-payment-feed-bf51d011/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-data.centorprat.workers.dev](https://www.zero.xyz/host/agent-data.centorprat.workers.dev/llms.txt)