--- title: "Changes to Check signer via simulated memo transaction" method: POST path: "/v1/wallets/signer-check" --- # Changes to Check signer via simulated memo transaction `POST /v1/wallets/signer-check` > Every recorded change to this operation, newest first. ## Timeline Changed in 14 of 42 revisions. - **2026-11-02** `9f0b1d561064`: 9 warning - **2026-10-30** `f4a0135eca08`: 54 warning - **2026-10-28** `18ae851e8081`: 9 warning - **2026-10-26** `1f50eccf8036`: 18 info - **2026-10-20** `360f49e7f433`: 1 breaking - **2026-10-16** `04b5d7ec60f2`: 32 warning, 2 info - **2026-10-15** `cbc72fc39983`: 8 warning - **2026-10-12** `5a8c8bfbde01`: 8 info - **2026-10-04** `030531d691d7`: 8 info - **2026-09-17** `c40cf3f45740`: 8 warning - **2026-09-15** `ae979bae198c`: 8 warning - **2026-09-11** `1e499ac13ac8`: 2 breaking, 4 info - **2026-08-19** `f138f2b58663`: 1 breaking, 1 warning, 1 info - **2026-08-15** `3e302bba5386`: 6 warning ## Changes - **2026-11-02** `9f0b1d561064`: 9 warning - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `400` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `401` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `403` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `404` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `409` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `422` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `429` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `500` - added the new `CUSTODY_POLICY_REFUSED` enum value to the `error/code` response property for the response status `502` - **2026-10-30** `f4a0135eca08`: 54 warning - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `400` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `401` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `403` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `404` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `409` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `422` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `429` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `500` - added the new `RPC_UNAVAILABLE` enum value to the `error/code` response property for the response status `502` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `400` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `401` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `403` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `404` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `409` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `422` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `429` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `500` - added the new `SPONSORED_RENT_OVER_CAP` enum value to the `error/code` response property for the response status `502` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `400` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `401` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `403` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `404` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `409` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `422` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `429` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `500` - added the new `TRANSFER_BATCH_DESTINATION_CHANGED` enum value to the `error/code` response property for the response status `502` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `400` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `401` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `403` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `404` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `409` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `422` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `429` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `500` - added the new `TRANSFER_BATCH_NOTHING_TO_RETRY` enum value to the `error/code` response property for the response status `502` - added the new `TRANSFER_BATCH_RETRY_CLAIMED` enum value to the `error/code` response property for the response status `400` - added the new `TRANSFER_BATCH_RETRY_CLAIMED` enum value to the `error/code` response property for the response status `401` - added the new `TRANSFER_BATCH_RETRY_CLAIMED` enum value to the `error/code` response property for the response status `403` - added the new `TRANSFER_BATCH_RETRY_CLAIMED` enum value to the `error/code` response property for the response status `404` - …14 more - **2026-10-28** `18ae851e8081`: 9 warning - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `400` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `401` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `403` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `404` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `409` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `422` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `429` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `500` - added the new `AMOUNT_BELOW_RENT_MINIMUM` enum value to the `error/code` response property for the response status `502` - **2026-10-26** `1f50eccf8036`: 18 info - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `400` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `401` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `403` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `404` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `409` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `422` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `429` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `500` - removed the `EXPIRED_INVITATION` enum value from the `error/code` response property for the response status `502` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `400` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `401` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `403` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `404` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `409` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `422` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `429` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `500` - removed the `INVALID_INVITATION` enum value from the `error/code` response property for the response status `502` - **2026-10-20** `360f49e7f433`: 1 breaking - the request property `walletId` became required - **2026-10-16** `04b5d7ec60f2`: 32 warning, 2 info - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `400` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `401` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `403` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `404` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `409` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `429` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `500` - added the new `IDEMPOTENCY_KEY_IN_FLIGHT` enum value to the `error/code` response property for the response status `502` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `400` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `401` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `403` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `404` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `409` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `429` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `500` - added the new `IDEMPOTENCY_KEY_OUTCOME_UNKNOWN` enum value to the `error/code` response property for the response status `502` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `400` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `401` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `403` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `404` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `409` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `429` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `500` - added the new `IDEMPOTENCY_KEY_REQUIRED` enum value to the `error/code` response property for the response status `502` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `400` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `401` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `403` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `404` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `409` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `429` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `500` - added the new `IDEMPOTENCY_KEY_REUSED` enum value to the `error/code` response property for the response status `502` - added the new optional `header` request parameter `Idempotency-Key` - added the non-success response with the status `422` - **2026-10-15** `cbc72fc39983`: 8 warning - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `400` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `401` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `403` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `404` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `409` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `429` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `500` - added the new `PROVIDER_RESPONSE_INVALID` enum value to the `error/code` response property for the response status `502` - **2026-10-12** `5a8c8bfbde01`: 8 info - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `400` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `401` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `403` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `404` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `409` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `429` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `500` - removed the `SIGNING_PENDING` enum value from the `error/code` response property for the response status `502` - **2026-10-04** `030531d691d7`: 8 info - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `400` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `401` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `403` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `404` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `409` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `429` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `500` - removed the `EXPIRED_SESSION` enum value from the `error/code` response property for the response status `502` - **2026-09-17** `c40cf3f45740`: 8 warning - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `400` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `401` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `403` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `404` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `409` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `429` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `500` - added the new `VAULT_EXPOSURE_CAP` enum value to the `error/code` response property for the response status `502` - **2026-09-15** `ae979bae198c`: 8 warning - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `400` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `401` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `403` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `404` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `409` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `429` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `500` - added the new `SIGNING_REJECTED` enum value to the `error/code` response property for the response status `502` - **2026-09-11** `1e499ac13ac8`: 2 breaking, 4 info - removed the required property `data/blockTime` from the response with the `200` status - removed the required property `data/slot` from the response with the `200` status - added the non-success response with the status `404` - added the non-success response with the status `409` - added the required property `data/checkedAt` to the response with the `200` status - added the required property `data/simulated` to the response with the `200` status - **2026-08-19** `f138f2b58663`: 1 breaking, 1 warning, 1 info - request body became required - removed the request property `memo` - added the new optional `header` request parameter `x-project-id` - **2026-08-15** `3e302bba5386`: 6 warning - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `400` - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `401` - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `403` - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `429` - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `500` - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `502` --- [Operation](https://skmtc.dev/solana/apis/solana-developer-platform-api/docs/v1/wallets/signer-check/post.md) - [API](https://skmtc.dev/solana/apis/solana-developer-platform-api.md) - [Page](https://skmtc.dev/solana/apis/solana-developer-platform-api/changes/v1/wallets/signer-check/post)