Utilities · x402 · early usage

Access to api/v2/transactions

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

by api.k8s-dev.blockscout.com · discovered, not yet claimed by its owner · updated 2026-10-07

30d calls3

30d payers2

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

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

Tags: bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-07

Input example from Bazaar metadata

{
  "block_number": 0,
  "filter": "string",
  "hash": "string",
  "index": 0,
  "inserted_at": "string",
  "items_count": 0,
  "type": "string"
}

Output example

{
  "items": [
    {
      "arbitrum": {
        "batch_data_container": "string",
        "batch_number": 0,
        "commitment_transaction": {
          "hash": "string",
          "status": "string",
          "timestamp": "string"
        },
        "confirmation_transaction": {
          "hash": "string",
          "status": "string",
          "timestamp": "string"
        },
        "contains_message": "string",
        "gas_used_for_l1": "string",
        "gas_used_for_l2": "string",
        "message_related_info": {
          "associated_l1_transaction_hash": "string",
          "message_id": 0,
          "message_status": "string"
        },
        "network_fee": "string",
        "poster_fee": "string",
        "status": "string"
      },
      "authorization_list": [
        {
          "address_hash": "string",
          "authority": "string",
          "chain_id": 0,
          "nonce": "string",
          "r": "string",
          "s": "string",
          "status": "string",
          "v": 0
        }
      ],
      "base_fee_per_gas": "string",
      "block_number": 0,
      "confirmation_duration": [
        0
      ],
      "confirmations": 0,
      "created_contract": {},
      "decoded_input": {},
      "exchange_rate": "string",
      "fee": {
        "type": "string",
        "value": "string"
      },
      "fhe_operations_count": 0,
      "from": {
        "ens_domain_name": "string",
        "hash": "string",
        "implementations": [
          {
            "address_hash": "string",
            "name": "string"
          }
        ],
        "is_contract": true,
        "is_scam": true,
        "is_verified": true,
        "metadata": {},
        "name": "string",
        "private_tags": [
          {
            "address_hash": "string",
            "display_name": "string",
            "label": "string"
          }
        ],
        "proxy_type": "string",
        "public_tags": [
          {
            "address_hash": "string",
            "display_name": "string",
            "label": "string"
          }
        ],
        "reputation": "string",
        "watchlist_names": [
          {
            "display_name": "string",
            "label": "string"
          }
        ]
      },
      "gas_limit": "string",
      "gas_price": "string",
      "gas_used": "string",
      "has_error_in_internal_transactions": true,
      "hash": "string",
      "historic_exchange_rate": "string",
      "is_pending_update": true,
      "max_fee_per_gas": "string",
      "max_priority_fee_per_gas": "string",
      "method": "string",
      "nonce": 0,
      "position": 0,
      "priority_fee": "string",
      "raw_input": "string",
      "result": {},
      "revert_reason": {},
      "status": "string",
      "timestamp": "string",
      "to": {},
      "token_transfers": [
        {
          "block_hash": "string",
          "block_number": 0,
          "from": {
            "ens_domain_name": "string",
            "hash": "string",
            "implementations": [
              {
                "address_hash": "string",
                "name": "string"
              }
            ],
            "is_contract": true,
            "is_scam": true,
            "is_verified": true,
            "metadata": {},
            "name": "string",
            "private_tags": [
              {
                "address_hash": "string",
                "display_name": "string",
                "label": "string"
              }
            ],
            "proxy_type": "string",
            "public_tags": [
              {
                "address_hash": "string",
                "display_name": "string",
                "label": "string"
              }
            ],
            "reputation": "string",
            "watchlist_names": [
              {
                "display_name": "string",
                "label": "string"
              }
            ]
          },
          "log_index": 0,
          "method": "string",
          "timestamp": "string",
          "to": {
            "ens_domain_name": "string",
            "hash": "string",
            "implementations": [
              {
                "address_hash": "string",
                "name": "string"
              }
            ],
            "is_contract": true,
            "is_scam": true,
            "is_verified": true,
            "metadata": {},
            "name": "string",
            "private_tags": [
              {
                "address_hash": "string",
                "display_name": "string",
                "label": "string"
              }
            ],
            "proxy_type": "string",
            "public_tags": [
              {
                "address_hash": "string",
                "display_name": "string",
                "label": "string"
              }
            ],
            "reputation": "string",
            "watchlist_names": [
              {
                "display_name": "string",
                "label": "string"
              }
            ]
          },
          "token": {
            "address_hash": "string",
            "bridge_type": "string",
            "circulating_market_cap": "string",
            "circulating_supply": "string",
            "decimals": "string",
            "exchange_rate": "string",
            "foreign_address": "string",
            "holders_count": "string",
            "icon_url": "string",
            "name": "string",
            "new_ui_multiplier": "string",
            "origin_chain_id": "string",
            "reputation": "string",
            "symbol": "string",
            "total_supply": "string",
            "type": {},
            "ui_multiplier": "string",
            "ui_multiplier_effective_at": "string",
            "volume_24h": "string"
          },
          "token_type": "string",
          "total": {},
          "transaction_hash": "string",
          "type": "string"
        }
      ],
      "token_transfers_overflow": true,
      "transaction_burnt_fee": "string",
      "transaction_tag": "string",
      "transaction_types": [
        "string"
      ],
      "type": 0,
      "value": "string"
    }
  ],
  "next_page_params": {}
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/42088.json for the price and payment options.
Pay. Call GET https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on eip155:11142220, eip155:5042002, Base Sepolia, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: see accepts
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: eip155:11142220, eip155:5042002, Base Sepolia
Demand: 3 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	eip155:11142220 eip155:11142220	0x01C5C0122039549AD1493B8220cABEdD739BC44E	2000	0xC983e478b973113568450C30e0b6C01730F068D0	60s
exact	eip155:5042002 eip155:5042002	0x3600000000000000000000000000000000000000	2000	0xC983e478b973113568450C30e0b6C01730F068D0	60s
exact	Base Sepolia eip155:84532	USDC	2000	0xC983e478b973113568450C30e0b6C01730F068D0	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:11142220",
    "payTo": "0xC983e478b973113568450C30e0b6C01730F068D0",
    "asset": "0x01C5C0122039549AD1493B8220cABEdD739BC44E",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:5042002",
    "payTo": "0xC983e478b973113568450C30e0b6C01730F068D0",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "eip155:84532",
    "payTo": "0xC983e478b973113568450C30e0b6C01730F068D0",
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl "https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.k8s-dev.blockscout.com
Endpoint: https://api.k8s-dev.blockscout.com/:chain_id/api/v2/transactions
Machine-readable: /resources/42088.json