---
title: "Changes to Get Block Payload by Block ID."
method: GET
path: "/blocks/{id}/payload"
---

# Changes to Get Block Payload by Block ID.

`GET /blocks/{id}/payload`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 7 of 57 revisions.

- **2025-09-22** `04fb304815f2`: 1 breaking
- **2025-07-28** `ff980847e35e`: 1 info
- **2025-07-28** `7f4afb83f61f`: 1 breaking, 1 info
- **2025-07-28** `4c0b3c5bd5db`: 2 info
- **2023-09-12** `1a584e2fcfca`: 1 info
- **2023-09-12** `de2af23f4ce4`: 1 breaking
- **2023-09-12** `2830f8479f6b`: 1 info

## Changes

- **2025-09-22** `04fb304815f2`: 1 breaking
  - the `collection_guarantees/items/cluster_chain_id` response's property type changed from no type to `string` for status `200`
- **2025-07-28** `ff980847e35e`: 1 info
  - the response property `collection_guarantees/items/cluster_chain_id` became required for the status `200`
- **2025-07-28** `7f4afb83f61f`: 1 breaking, 1 info
  - removed the required property `collection_guarantees/items/chain_id` from the response with the `200` status
  - added the optional property `collection_guarantees/items/cluster_chain_id` to the response with the `200` status
- **2025-07-28** `4c0b3c5bd5db`: 2 info
  - added the required property `collection_guarantees/items/chain_id` to the response with the `200` status
  - added the required property `collection_guarantees/items/reference_block_id` to the response with the `200` status
- **2023-09-12** `1a584e2fcfca`: 1 info
  - endpoint added
- **2023-09-12** `de2af23f4ce4`: 1 breaking
  - api path removed without deprecation
- **2023-09-12** `2830f8479f6b`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/onflow/apis/access-api/docs/blocks/:id/payload/get.md) - [API](https://skmtc.dev/onflow/apis/access-api.md) - [Page](https://skmtc.dev/onflow/apis/access-api/changes/blocks/:id/payload/get)