{
  "info": {
    "_postman_id": "ff5e5dbb-7dae-4710-b3af-6564cb8ab7fe",
    "name": "Arweave HTTP Node Chunks API",
    "description": "The core Arweave node REST API for submitting and retrieving transactions, uploading data chunks, querying wallet balances, fetching blocks, and inspecting network state. Requests target any Arweave node on port 1984 (default gateway arweave.net). Amounts are denominated in winstons (1 AR = 10^12 winstons).\n\n\nContact Support:\n Name: Arweave Team\n Email: team@arweave.org",
    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
    "createdAt": "2026-07-28T01:04:59.000Z",
    "updatedAt": "2026-07-28T01:04:59.000Z",
    "lastUpdatedBy": "35240",
    "uid": "35240-ff5e5dbb-7dae-4710-b3af-6564cb8ab7fe"
  },
  "item": [
    {
      "name": "chunk",
      "item": [
        {
          "name": "{offset}",
          "item": [
            {
              "name": "Download a data chunk",
              "id": "2011f197-5128-46ab-81b3-3a0bd05ece93",
              "protocolProfileBehavior": {
                "disableBodyPruning": true
              },
              "request": {
                "method": "GET",
                "header": [
                  {
                    "key": "Accept",
                    "value": "application/json"
                  }
                ],
                "url": {
                  "raw": "{{baseUrl}}/chunk/:offset",
                  "host": [
                    "{{baseUrl}}"
                  ],
                  "path": [
                    "chunk",
                    ":offset"
                  ],
                  "variable": [
                    {
                      "id": "3ffabc86-a21f-4fdf-965b-b6d726e83ee9",
                      "key": "offset",
                      "value": "<string>",
                      "description": "(Required) Byte offset of the chunk within the weave"
                    }
                  ]
                },
                "description": "Download a data chunk at the specified weave byte offset. Returns the chunk data along with its offset and size metadata.\n"
              },
              "response": [
                {
                  "id": "9e5787ab-3638-4919-9a84-9bc467fb8d18",
                  "name": "Chunk data returned",
                  "originalRequest": {
                    "method": "GET",
                    "header": [
                      {
                        "key": "Accept",
                        "value": "application/json"
                      }
                    ],
                    "url": {
                      "raw": "{{baseUrl}}/chunk/:offset",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "chunk",
                        ":offset"
                      ],
                      "variable": [
                        {
                          "key": "offset"
                        }
                      ]
                    }
                  },
                  "status": "OK",
                  "code": 200,
                  "_postman_previewlanguage": "json",
                  "header": [
                    {
                      "key": "Content-Type",
                      "value": "application/json"
                    }
                  ],
                  "cookie": [],
                  "responseTime": null,
                  "body": "{\n  \"chunk\": \"<string>\",\n  \"data_path\": \"<string>\",\n  \"tx_path\": \"<string>\"\n}",
                  "createdAt": "2026-07-28T01:05:00.000Z",
                  "updatedAt": "2026-07-28T01:05:00.000Z",
                  "uid": "35240-9e5787ab-3638-4919-9a84-9bc467fb8d18"
                },
                {
                  "id": "772f71e7-d2a8-40be-af35-3b4760529a04",
                  "name": "Invalid offset",
                  "originalRequest": {
                    "method": "GET",
                    "header": [],
                    "url": {
                      "raw": "{{baseUrl}}/chunk/:offset",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "chunk",
                        ":offset"
                      ],
                      "variable": [
                        {
                          "key": "offset"
                        }
                      ]
                    }
                  },
                  "status": "Bad Request",
                  "code": 400,
                  "_postman_previewlanguage": "text",
                  "header": [],
                  "cookie": [],
                  "responseTime": null,
                  "body": null,
                  "createdAt": "2026-07-28T01:05:00.000Z",
                  "updatedAt": "2026-07-28T01:05:00.000Z",
                  "uid": "35240-772f71e7-d2a8-40be-af35-3b4760529a04"
                },
                {
                  "id": "cf680db2-66e8-48ca-9402-28f9bd13e691",
                  "name": "Chunk not available",
                  "originalRequest": {
                    "method": "GET",
                    "header": [],
                    "url": {
                      "raw": "{{baseUrl}}/chunk/:offset",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "chunk",
                        ":offset"
                      ],
                      "variable": [
                        {
                          "key": "offset"
                        }
                      ]
                    }
                  },
                  "status": "Service Unavailable",
                  "code": 503,
                  "_postman_previewlanguage": "text",
                  "header": [],
                  "cookie": [],
                  "responseTime": null,
                  "body": null,
                  "createdAt": "2026-07-28T01:05:00.000Z",
                  "updatedAt": "2026-07-28T01:05:00.000Z",
                  "uid": "35240-cf680db2-66e8-48ca-9402-28f9bd13e691"
                }
              ],
              "createdAt": "2026-07-28T01:05:00.000Z",
              "updatedAt": "2026-07-28T01:05:00.000Z",
              "uid": "35240-2011f197-5128-46ab-81b3-3a0bd05ece93"
            }
          ],
          "id": "47c1d175-8660-4911-87a8-044391082b8d",
          "createdAt": "2026-07-28T01:05:00.000Z",
          "updatedAt": "2026-07-28T01:05:00.000Z",
          "uid": "35240-47c1d175-8660-4911-87a8-044391082b8d"
        },
        {
          "name": "Upload a data chunk",
          "id": "2aa7207b-9c7a-4f0b-b389-e3f661c3b9ab",
          "protocolProfileBehavior": {
            "disableBodyPruning": true
          },
          "request": {
            "method": "POST",
            "header": [
              {
                "key": "Content-Type",
                "value": "application/json"
              },
              {
                "key": "Accept",
                "value": "text/plain"
              }
            ],
            "body": {
              "mode": "raw",
              "raw": "{\n  \"data_root\": \"<string>\",\n  \"data_size\": \"<string>\",\n  \"data_path\": \"<string>\",\n  \"chunk\": \"<string>\",\n  \"offset\": \"<string>\"\n}",
              "options": {
                "raw": {
                  "headerFamily": "json",
                  "language": "json"
                }
              }
            },
            "url": {
              "raw": "{{baseUrl}}/chunk",
              "host": [
                "{{baseUrl}}"
              ],
              "path": [
                "chunk"
              ]
            },
            "description": "Upload a single data chunk for a v2 transaction. Chunks must be uploaded after the transaction header is submitted via POST /tx. Maximum chunk size is 256 KiB. The data_root from the transaction must be registered (transaction submitted) before chunks can be uploaded.\n"
          },
          "response": [
            {
              "id": "5511aa40-f42a-48ba-a95c-ed4725b618f3",
              "name": "Chunk accepted",
              "originalRequest": {
                "method": "POST",
                "header": [
                  {
                    "key": "Content-Type",
                    "value": "application/json"
                  },
                  {
                    "key": "Accept",
                    "value": "text/plain"
                  }
                ],
                "body": {
                  "mode": "raw",
                  "raw": "{\n  \"data_root\": \"<string>\",\n  \"data_size\": \"<string>\",\n  \"data_path\": \"<string>\",\n  \"chunk\": \"<string>\",\n  \"offset\": \"<string>\"\n}",
                  "options": {
                    "raw": {
                      "headerFamily": "json",
                      "language": "json"
                    }
                  }
                },
                "url": {
                  "raw": "{{baseUrl}}/chunk",
                  "host": [
                    "{{baseUrl}}"
                  ],
                  "path": [
                    "chunk"
                  ]
                }
              },
              "status": "OK",
              "code": 200,
              "_postman_previewlanguage": "text",
              "header": [
                {
                  "key": "Content-Type",
                  "value": "text/plain"
                }
              ],
              "cookie": [],
              "responseTime": null,
              "body": "<string>",
              "createdAt": "2026-07-28T01:05:00.000Z",
              "updatedAt": "2026-07-28T01:05:00.000Z",
              "uid": "35240-5511aa40-f42a-48ba-a95c-ed4725b618f3"
            },
            {
              "id": "8cd779e9-54a1-453c-b75b-a490ea2f0427",
              "name": "Invalid chunk submission",
              "originalRequest": {
                "method": "POST",
                "header": [
                  {
                    "key": "Content-Type",
                    "value": "application/json"
                  },
                  {
                    "key": "Accept",
                    "value": "application/json"
                  }
                ],
                "body": {
                  "mode": "raw",
                  "raw": "{\n  \"data_root\": \"<string>\",\n  \"data_size\": \"<string>\",\n  \"data_path\": \"<string>\",\n  \"chunk\": \"<string>\",\n  \"offset\": \"<string>\"\n}",
                  "options": {
                    "raw": {
                      "headerFamily": "json",
                      "language": "json"
                    }
                  }
                },
                "url": {
                  "raw": "{{baseUrl}}/chunk",
                  "host": [
                    "{{baseUrl}}"
                  ],
                  "path": [
                    "chunk"
                  ]
                }
              },
              "status": "Bad Request",
              "code": 400,
              "_postman_previewlanguage": "json",
              "header": [
                {
                  "key": "Content-Type",
                  "value": "application/json"
                }
              ],
              "cookie": [],
              "responseTime": null,
              "body": "{\n  \"error\": \"exceeds_disk_pool_size_limit\"\n}",
              "createdAt": "2026-07-28T01:05:00.000Z",
              "updatedAt": "2026-07-28T01:05:00.000Z",
              "uid": "35240-8cd779e9-54a1-453c-b75b-a490ea2f0427"
            }
          ],
          "createdAt": "2026-07-28T01:05:00.000Z",
          "updatedAt": "2026-07-28T01:05:00.000Z",
          "uid": "35240-2aa7207b-9c7a-4f0b-b389-e3f661c3b9ab"
        }
      ],
      "id": "71690e2e-b629-4ae9-8eca-2ec60f698059",
      "createdAt": "2026-07-28T01:05:00.000Z",
      "updatedAt": "2026-07-28T01:05:00.000Z",
      "uid": "35240-71690e2e-b629-4ae9-8eca-2ec60f698059"
    }
  ],
  "variable": [
    {
      "key": "baseUrl",
      "value": "https://arweave.net"
    }
  ]
}