---
title: "Changes to Estimate per-execution fees for a workflow definition"
method: POST
path: "/workflows:estimateFees"
---

# Changes to Estimate per-execution fees for a workflow definition

`POST /workflows:estimateFees`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 11 of 30 revisions.

- **2026-11-04** `6b505ebcf3f7`: 9 info
- **2026-10-28** `4ebf07931311`: 6 info
- **2026-10-19** `298c34b0d68f`: 1 warning
- **2026-10-15** `f6e53eeef5b3`: 2 info
- **2026-10-02** `05f875e6b817`: 8 info
- **2026-07-24** `96b1dc905195`: 2 info
- **2026-06-30** `e76b228e0c15`: 1 breaking, 2 info
- **2026-06-29** `431fb84472e0`: 3 info
- **2026-06-26** `c2d149d742dd`: 5 breaking
- **2026-06-16** `73efd15e6678`: 1 breaking
- **2026-06-04** `298db67c81a9`: 3 breaking, 6 info

## Changes

- **2026-11-04** `6b505ebcf3f7`: 9 info
  - added the new optional request property `nodes/items/oneOf[#/components/schemas/ETHTransferNode]/allOf[subschema #1]/config/reserveGas`
  - added the optional property `availableWei` to the response with the `400` status
  - added the optional property `availableWei` to the response with the `401` status
  - added the optional property `neededWei` to the response with the `400` status
  - added the optional property `neededWei` to the response with the `401` status
  - added the optional property `spender` to the response with the `400` status
  - added the optional property `spender` to the response with the `401` status
  - added the optional property `token` to the response with the `400` status
  - added the optional property `token` to the response with the `401` status
- **2026-10-28** `4ebf07931311`: 6 info
  - added the optional property `acknowledgedDelegate` to the response with the `400` status
  - added the optional property `acknowledgedDelegate` to the response with the `401` status
  - added the optional property `delegate` to the response with the `400` status
  - added the optional property `delegate` to the response with the `401` status
  - added the optional property `recipient` to the response with the `400` status
  - added the optional property `recipient` to the response with the `401` status
- **2026-10-19** `298c34b0d68f`: 1 warning
  - removed the request property `nodes/items/oneOf[#/components/schemas/ContractWriteNode]/allOf[subschema #1]/config/isSimulated`
- **2026-10-15** `f6e53eeef5b3`: 2 info
  - added the optional property `required/nativeGasWei` to the response with the `400` status
  - added the optional property `required/nativeGasWei` to the response with the `401` status
- **2026-10-02** `05f875e6b817`: 8 info
  - added the optional property `affectedTaskIds` to the response with the `400` status
  - added the optional property `affectedTaskIds` to the response with the `401` status
  - added the optional property `missingActions` to the response with the `400` status
  - added the optional property `missingActions` to the response with the `401` status
  - added the optional property `policyId` to the response with the `400` status
  - added the optional property `policyId` to the response with the `401` status
  - added the optional property `required` to the response with the `400` status
  - added the optional property `required` to the response with the `401` status
- **2026-07-24** `96b1dc905195`: 2 info
  - added the new optional request property `nodes/items/oneOf[#/components/schemas/ContractReadNode]/allOf[subschema #1]/config/methodCalls/items/contractAddress`
  - added the new optional request property `nodes/items/oneOf[#/components/schemas/ContractWriteNode]/allOf[subschema #1]/config/methodCalls/items/contractAddress`
- **2026-06-30** `e76b228e0c15`: 1 breaking, 2 info
  - request property `nodes/items/oneOf[#/components/schemas/AwaitNode]/allOf[subschema #1]/config/channel` was restricted to a list of enum values
  - added the new `api` enum value to the request property `nodes/items/oneOf[#/components/schemas/AwaitNode]/allOf[subschema #1]/config/channel`
  - added the new `telegram` enum value to the request property `nodes/items/oneOf[#/components/schemas/AwaitNode]/allOf[subschema #1]/config/channel`
- **2026-06-29** `431fb84472e0`: 3 info
  - added `await` discriminator mapping keys to the `nodes/items/` request property
  - added the new `await` enum value to the request property `nodes/items/type`
  - added `#/components/schemas/AwaitNode` to the `nodes/items/` request property `oneOf` list
- **2026-06-26** `c2d149d742dd`: 5 breaking
  - the request property `nodes/items/oneOf[#/components/schemas/ContractReadNode]/allOf[subschema #1]/config/chainId` became required
  - the request property `nodes/items/oneOf[#/components/schemas/ContractWriteNode]/allOf[subschema #1]/config/chainId` became required
  - the request property `nodes/items/oneOf[#/components/schemas/ETHTransferNode]/allOf[subschema #1]/config/chainId` became required
  - the request property `trigger/oneOf[#/components/schemas/BlockTrigger]/allOf[subschema #1]/config/chainId` became required
  - the request property `trigger/oneOf[#/components/schemas/EventTrigger]/allOf[subschema #1]/config/chainId` became required
- **2026-06-16** `73efd15e6678`: 1 breaking
  - the `trigger/oneOf[#/components/schemas/EventTrigger]/allOf[subschema #1]/config/queries/items/conditions/items/value` request property type changed from no type to `string`
- **2026-06-04** `298db67c81a9`: 3 breaking, 6 info
  - removed the enum value `await` of the request property `nodes/items/type`
  - removed `#/components/schemas/AwaitNode` from the `nodes/items/` request property `oneOf` list
  - the `trigger/oneOf[#/components/schemas/EventTrigger]/allOf[subschema #1]/config/queries/items/conditions/items/value` request property type changed from `string` to no type
  - the request property `nodes/items/oneOf[#/components/schemas/ContractReadNode]/allOf[subschema #1]/config/chainId` became optional
  - the request property `nodes/items/oneOf[#/components/schemas/ContractWriteNode]/allOf[subschema #1]/config/chainId` became optional
  - the request property `nodes/items/oneOf[#/components/schemas/ETHTransferNode]/allOf[subschema #1]/config/chainId` became optional
  - the request property `trigger/oneOf[#/components/schemas/BlockTrigger]/allOf[subschema #1]/config/chainId` became optional
  - the request property `trigger/oneOf[#/components/schemas/EventTrigger]/allOf[subschema #1]/config/chainId` became optional
  - removed `await` discriminator mapping keys from the `nodes/items/` request property

---

[Operation](https://skmtc.dev/avaprotocol/apis/ava-protocol-avs-api/docs/workflows:estimateFees/post.md) - [API](https://skmtc.dev/avaprotocol/apis/ava-protocol-avs-api.md) - [Page](https://skmtc.dev/avaprotocol/apis/ava-protocol-avs-api/changes/workflows:estimateFees/post)