---
title: "Authoritatively retire a signed transaction artifact"
method: POST
path: "/vault/{agentId}/transactions/{txId}/retire-signed"
tags: ["Vault"]
---

# Authoritatively retire a signed transaction artifact

`POST /vault/{agentId}/transactions/{txId}/retire-signed`

## Request

- Base URL: `http://localhost:3200`
- URL: `http://localhost:3200/vault/{agentId}/transactions/{txId}/retire-signed`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/steward-fi/apis/steward-api/docs/vault/:agentId/transactions/:txId/retire-signed/post.ts> (a function with typed inputs; its response is checked against the schema)

Requires an owner/admin browser session with recent MFA. Solana retirement succeeds only when the exact deterministic signature is absent from chain history and its byte-classified ordinary blockhash is expired. Durable-nonce and unclassified artifacts remain blocked. Landed artifacts are reconciled instead. Provider uncertainty and unsupported EVM artifacts remain non-terminal.

## Headers

- `X-Steward-Request-Timestamp` string
- `X-Steward-Request-Expires-At` string
- `X-Steward-Signature` string
- `X-Steward-Signing-Key-Id` string
- `Idempotency-Key` string

## Request body

- object
  - `reason` string, required

## Response `200`

JSON response

- object
  - `ok` true, required
  - `data` object, required
    - `txId` string, required
    - `status` 'retired', required
    - `artifactId` string, required
    - `retiredAt` string, required

## Other responses

- `400`: JSON response
- `401`: JSON response
- `403`: JSON response
- `404`: JSON response
- `408`: JSON response
- `409`: JSON response
- `502`: JSON response

## Changes

- **2026-08-22** `b88b4b97a664`: 1 breaking, 1 info
  - removed the required property `data/artifactSignature` from the response with the `200` status
  - added the required property `data/artifactId` to the response with the `200` status
- **2026-08-22** `7bcf02be8710`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/steward-fi/apis/steward-api/changes/vault/:agentId/transactions/:txId/retire-signed/post.md)

---

[API](https://skmtc.dev/steward-fi/apis/steward-api.md) - [All operations](https://skmtc.dev/steward-fi/apis/steward-api/llms.txt) - [OpenAPI document](https://skmtc.dev/steward-fi/apis/steward-api/revisions/b88b4b97a664?raw)