List Anchors

GET /api/v1/anchors

Retrieve a list of blockchain anchors for your workspace, ordered by creation date (newest first). Each anchor represents a Merkle root computed from events in a given period and submitted to the Base blockchain.

Query Parameters

limit

integer

default:"25"

Number of anchors to return (max 100).

Response

{
  "data": [
    {
      "id": "anc_abc123",
      "merkle_root": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
      "previous_anchor_hash": "4e07408562bedb8b60ce05c1decfe3ad16b72230967de01f640b7e4729b49fce",
      "events_count": 1247,
      "period_start": "2026-03-27T00:00:00Z",
      "period_end": "2026-03-27T23:59:59Z",
      "chain": "base",
      "status": "confirmed",
      "tx_hash": "0x7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b",
      "block_number": 28451923,
      "explorer_url": "https://basescan.org/tx/0x7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b",
      "created_at": "2026-03-28T00:15:32Z"
    },
    {
      "id": "anc_def456",
      "merkle_root": "6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b",
      "previous_anchor_hash": null,
      "events_count": 892,
      "period_start": "2026-03-26T00:00:00Z",
      "period_end": "2026-03-26T23:59:59Z",
      "chain": "base",
      "status": "confirmed",
      "tx_hash": "0x1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b",
      "block_number": 28409871,
      "explorer_url": "https://basescan.org/tx/0x1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b",
      "created_at": "2026-03-27T00:15:28Z"
    }
  ]
}

Response Fields

Field	Type	Description
`id`	string	Unique anchor identifier
`merkle_root`	string	64-character hex SHA-256 Merkle root of events in this period
`previous_anchor_hash`	string \| null	SHA-256 hash of the previous anchor’s `merkle_root` + `tx_hash`. Null for the first anchor
`events_count`	integer	Number of events included in the Merkle tree
`period_start`	string	ISO 8601 start of the anchoring period
`period_end`	string	ISO 8601 end of the anchoring period
`chain`	string	Blockchain network (`base`)
`status`	string	`pending`, `submitted`, or `confirmed`
`tx_hash`	string \| null	Blockchain transaction hash. Null if not yet submitted
`block_number`	integer \| null	Block number of the confirmed transaction. Null if not yet confirmed
`explorer_url`	string \| null	Direct link to the transaction on Basescan
`created_at`	string	ISO 8601 timestamp of anchor creation

Examples

curl https://getimmutable.dev/api/v1/anchors?limit=10 \
  -H "Authorization: Bearer imk_your_api_key_here"

import { ImmutableClient } from "getimmutable";

const client = new ImmutableClient({
  apiKey: "imk_your_api_key_here",
  baseUrl: "https://getimmutable.dev",
});

const anchors = await client.getAnchors(10);

for (const anchor of anchors.data) {
  console.log(`${anchor.id}: ${anchor.events_count} events, status: ${anchor.status}`);
}

from getimmutable import ImmutableClient

client = ImmutableClient(
    api_key="imk_your_api_key_here",
    base_url="https://getimmutable.dev",
)

anchors = client.get_anchors(limit=10)

for anchor in anchors["data"]:
    print(f"{anchor['id']}: {anchor['events_count']} events, status: {anchor['status']}")

use GetImmutable\AuditLog;

$anchors = AuditLog::client()->getAnchors();

foreach ($anchors['data'] as $anchor) {
    echo "{$anchor['id']}: {$anchor['events_count']} events\n";
}

Anchors with status: "pending" or status: "submitted" will have null values for tx_hash, block_number, and explorer_url. These anchors cannot yet be verified on-chain.

Overview

Events

Verification

Exports

Anchors

Other

GET /api/v1/anchors

Query Parameters

Response

Response Fields

Examples

​GET /api/v1/anchors

​Query Parameters

​Response

​Response Fields

​Examples

GET /api/v1/anchors

Query Parameters

Response

Response Fields

Examples