# 47620 Base Block by Number

> 47620 Base Block by Number is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).

Fetches on-chain data for a specific Base block by block number, paid per-call via x402 USDC micropayment.

## Facts

- Endpoint: GET https://47620.xyz/x/base/block/:number?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-base-block-by-number-c788a600
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yZR64-5Nlt5gs0qHbTHBo

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 47620-base-block-by-number-c788a600
```

Example prompt: Can you look up the on-chain data for Base block number 19500000? I'll pay per call with USDC — no API key needed.

## When to prefer this

Choose this endpoint when you need to retrieve data for a specific, known Base block number without setting up API keys or accounts. It is ideal for agents operating in a pay-per-call model using USDC micropayments via x402, especially when you only need occasional block lookups rather than a subscription-based data feed. Prefer it over full node access when you want zero-setup, on-demand Base block data with on-chain payment accountability.

## Known failure modes

- Invalid or non-existent block number returns an error response
- Block number too far in the future (not yet mined) may return not-found
- Payment failure or insufficient USDC balance blocks access
- Malformed block number parameter (non-integer) causes bad request
- Network issues with Base RPC may cause transient fetch failures

## How this service works

Non-custodial x402 payment gateway on Solana (1% on-chain fee) plus a pay-per-call Solana data API for agents: token price, account balances, tx lookup, trending DEX pairs, network health. No signup, no API key — pay USDC per call.

## Output

Returns a JSON object with an ok flag, a data object containing the fetchedAt ISO timestamp, and an endpoint identifier string ('base-block'). The block-specific on-chain data is included in the data payload.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "fetchedAt": "<iso>"
  },
  "endpoint": "base-block"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-base-block-by-number-c788a600/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 47620.xyz](https://www.zero.xyz/host/47620.xyz/llms.txt)