# Tenjin Verified Base USDC Transfer Rows Dataset

> Tenjin Verified Base USDC Transfer Rows Dataset is a paid API for AI agents from tenjin.blog, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns a verified JSONL dataset of 998 Base USDC transfer events across 500 blocks, with per-row values, build manifest, and SHA256 checksums.

## Facts

- Endpoint: GET https://tenjin.blog/api/read/0x884514a40b8284c7472b39e863e137c0a380bde2/verified-base-usdc-transfer-rows-998-events-500-blocks-full-checksums-d7df1b
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tenjin-verified-base-usdc-transfer-rows-dataset-8d324aff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OMd5TWF8R9VqRwi5Nscwy

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 tenjin-verified-base-usdc-transfer-rows-dataset-8d324aff
```

Example prompt: Fetch the verified Base USDC transfer rows dataset from Tenjin — the one with 998 transfer events across 500 blocks, full SHA256 checksums, and a build manifest — I need the JSONL with per-row values for analysis.

## When to prefer this

Choose this endpoint when you need a pre-verified, integrity-checked snapshot of Base mainnet USDC transfer events in JSONL format with cryptographic checksums, rather than running your own RPC queries. Ideal for auditing, reproducible research, or bootstrapping a data pipeline without direct RPC access.

## Known failure modes

- Payment not provided or insufficient USDC — returns 402 Payment Required
- Invalid wallet address or slug — returns 404 Not Found
- Network or RPC unavailability causing dataset staleness
- Checksum mismatch if file was corrupted in transit

## How this service works

Verified Base USDC Transfer Rows: 998 Events, 500 Blocks, Full Checksums. 998 Base USDC transfer events on mainnet, block- and tx-indexed, shipped as JSONL with per-row values, a build manifest and SHA256 sums. 500-block pinned window, v0.1.1 plus v0.1.0 snapshot, MIT generator, regenerable from public RPC in ~90s, verifiable in ~3 minutes.

## Output

A JSONL file containing 998 Base mainnet USDC transfer events, each row block- and transaction-indexed with per-row values. Accompanied by a build manifest and SHA256 checksums for full data integrity verification. Covers a pinned 500-block window, versioned at v0.1.1 (with v0.1.0 snapshot), and regenerable from public RPC in approximately 90 seconds.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "handle",
      "slug"
     ],
     "properties": {
      "slug": {
       "type": "string",
       "description": "The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."
      },
      "handle": {
       "type": "string",
       "description": "The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tenjin-verified-base-usdc-transfer-rows-dataset-8d324aff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tenjin.blog](https://www.zero.xyz/host/tenjin.blog/llms.txt)