# Blockscout Blocks API

> Blockscout Blocks API is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-12).

Retrieves paginated block data for a specified blockchain network via Blockscout's multichain explorer

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/blocks
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-blocks-api-f6bfe611
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qde82oxmGl5ts4FPbAbS6

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 blockscout-blocks-api-f6bfe611
```

Example prompt: Show me the latest blocks on the Arbitrum chain using Blockscout — I want to see block heights, miners, gas usage, and transaction counts.

## When to prefer this

Choose this endpoint when you need structured, paginated block-level data across multiple EVM-compatible chains from a single API surface. It is ideal for cross-chain monitoring, fee analysis, and block production tracking. Prefer it over chain-specific RPC calls (eth_getBlockByNumber) when you need normalized block metadata across chains without managing multiple RPC providers.

## Known failure modes

- Invalid chain_id returns 404 or empty result
- Unsupported chain_id may return an error or no data
- Invalid block_number filter may return no items
- Rate limiting or payment failure returns 402 Payment Required
- Malformed query parameters may return 400 Bad Request
- Chain temporarily unavailable returns 503 or timeout

## How this service works

Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data

## Output

Returns a paginated list of block objects, each containing block hash, height, miner details, timestamp, gas used/limit, transaction count, burnt fees, base fee per gas, difficulty, nonce, uncle hashes, rewards, and optional Arbitrum-specific fields (batch number, L1 block number, commitment and confirmation transaction hashes). Also includes next_page_params for cursor-based pagination.

## 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"
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "chain_id": {
       "type": "string"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "type": {
       "type": "string"
      },
      "items_count": {
       "type": "integer"
      },
      "block_number": {
       "type": "integer"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "items": [
   {
    "hash": "string",
    "size": 0,
    "type": "string",
    "miner": {},
    "nonce": "string",
    "height": 0,
    "rewards": [
     {
      "type": "string",
      "reward": "string"
     }
    ],
    "arbitrum": {
     "status": "string",
     "send_root": "string",
     "send_count": 0,
     "batch_number": 0,
     "l1_block_number": 0,
     "delayed_messages": 0,
     "batch_data_container": "string",
     "commitment_transaction": {
      "hash": "string",
      "status": "string",
      "timestamp": "string"
     },
     "confirmation_transaction": {
      "hash": "string",
      "status": "string",
      "timestamp": "string"
     }
    },
    "gas_used": "string",
    "gas_limit": "string",
    "timestamp": "string",
    "burnt_fees": "string",
    "difficulty": "string",
    "parent_hash": "string",
    "priority_fee": "string",
    "uncles_hashes": [
     {
      "hash": "string"
     }
    ],
    "base_fee_per_gas": "string",
    "total_difficulty": "string",
    "transaction_fees": "string",
    "is_pending_update": true,
    "withdrawals_count": 0,
    "transactions_count": 0,
    "gas_used_percentage": 0,
    "burnt_fees_percentage": 0,
    "gas_target_percentage": 0,
    "internal_transactions_count": 0
   }
  ],
  "next_page_params": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-blocks-api-f6bfe611/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockscout.com](https://www.zero.xyz/host/api.blockscout.com/llms.txt)