# Phantom API — Latest Block Lookup

> Phantom API — Latest Block Lookup is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the most recent block data from a specified blockchain network via the Tempo endpoint

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/tempo/block/latest
- 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/phantom-api-latest-block-lookup-1652cd7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_glo7JPICM1v4hnbJXNTgm

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 phantom-api-latest-block-lookup-1652cd7c -d '<json body>'
```

Example prompt: What's the latest block on Ethereum right now? Use Phantom API's Tempo block endpoint to fetch the current block data.

## When to prefer this

Choose this endpoint when you need real-time, pay-per-call access to the latest block data across a wide range of blockchain networks (57+) without a monthly subscription. It is ideal for agents that only occasionally need block data and want to avoid over-provisioning, or for multi-chain workflows where a single provider covers many networks.

## Known failure modes

- Network or chain identifier not supported across 57+ networks may return 404 or error
- Payment failure via x402 protocol results in 402 Payment Required response
- Empty or malformed POST body may return 400 Bad Request
- Temporary node downtime may cause timeout or 503 Service Unavailable
- Rate limiting if too many calls are made in rapid succession

## How this service works

Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.

## Output

Returns metadata about the most recently produced block on the queried blockchain network, including block number/height, block hash, timestamp, and potentially parent hash and transaction count depending on the network.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "properties": {},
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-latest-block-lookup-1652cd7c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phantom-api-omega.vercel.app](https://www.zero.xyz/host/phantom-api-omega.vercel.app/llms.txt)