# Blockscout Blockchain Transaction List API

> Blockscout Blockchain Transaction List API is a paid API for AI agents from api.k8s-dev.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Lists blockchain transactions for a specified chain with filtering by status, type, and method via the Blockscout explorer API

## Facts

- Endpoint: GET https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-blockchain-transaction-list-api-70eb0d78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_R56D_WmfLwEe-z6SZYGQc

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-blockchain-transaction-list-api-70eb0d78
```

Example prompt: Can you pull me the latest transactions on chain 1 (Ethereum mainnet) filtered to only show ERC-20 token transfers, showing the most recent 25 results?

## When to prefer this

Use this endpoint when you need to list, browse, or filter blockchain transactions on a specific EVM-compatible chain using the Blockscout explorer infrastructure. It is ideal for paginated transaction browsing, filtering by type or status, and querying by block number or hash. Prefer this over raw RPC calls when you want pre-indexed, human-readable transaction metadata without running your own node.

## Known failure modes

- Invalid or unsupported chain_id returns 404 or empty result
- Invalid filter or type enum value may return 400 bad request
- Pagination parameters out of range may return empty list
- Network unavailability of the k8s-dev instance returns 503
- Missing required type or method parameters returns validation error

## How this service works

Access to api/v2/transactions. List blockchain transactions with filtering options for status, type, and method

## Output

Returns a paginated list of blockchain transactions matching the specified filters, including transaction hashes, statuses, types, methods, block numbers, and timestamps for each transaction on the target chain.

## 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": {
      "hash": {
       "type": "string"
      },
      "type": {
       "type": "string"
      },
      "index": {
       "type": "integer"
      },
      "filter": {
       "type": "string"
      },
      "inserted_at": {
       "type": "string"
      },
      "items_count": {
       "type": "integer"
      },
      "block_number": {
       "type": "integer"
      }
     }
    }
   },
   "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/blockscout-blockchain-transaction-list-api-70eb0d78/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.k8s-dev.blockscout.com](https://www.zero.xyz/host/api.k8s-dev.blockscout.com/llms.txt)