# santyvv-data Chain Block Endpoint

> santyvv-data Chain Block Endpoint is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Returns the latest block data for a blockchain network, paid per call in USDC via the x402 protocol with no API key required.

## Facts

- Endpoint: GET https://x402.santyvv.com/api/chain/block?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-chain-block-endpoint-926c0703
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HMoI3vedfyq44tSDs95rq

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 santyvv-data-chain-block-endpoint-926c0703
```

Example prompt: What is the latest block number and timestamp on the Base blockchain right now?

## When to prefer this

Choose this endpoint when you need quick, keyless access to current blockchain block data without managing API subscriptions or credentials. It is ideal for agents that need on-chain block metadata (number, hash, timestamp) on demand, especially on Base or supported EVM chains, and where paying $0.01 per call via USDC micropayment is preferable to managing API keys or rate limits.

## Known failure modes

- Payment not provided or insufficient USDC — returns HTTP 402 with payment requirements
- Invalid or unsupported chain type specified — returns error with supported options
- Upstream data provider outage — fallback may trigger but could result in latency or empty response
- Malformed query parameters — returns validation error

## How this service works

Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.

## Output

Returns normalized block data for the queried blockchain, including the block number, block hash, timestamp, and potentially transaction count, sourced from public on-chain data providers with multi-source fallback and edge caching applied.

## 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": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-chain-block-endpoint-926c0703/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.santyvv.com](https://www.zero.xyz/host/x402.santyvv.com/llms.txt)