---
title: "Attest a Virtualization-based Security (VBS) enclave."
method: POST
path: "/attest/Tpm"
---

# Attest a Virtualization-based Security (VBS) enclave.

`POST /attest/Tpm`

Processes attestation evidence from a VBS enclave, producing an attestation
result. The attestation result produced is dependent upon the attestation
policy.

## Query parameters

- `api-version` string, required

## Request body

- TpmAttestationRequest — Attestation request for Trusted Platform Module (TPM) attestation.
  - `data` string, base64url — Protocol data containing artifacts for attestation.

## Response `200`

The request has succeeded.

- TpmAttestationResponse — Attestation response for Trusted Platform Module (TPM) attestation.
  - `data` string, base64url — Protocol data containing attestation service response.

## Other responses

- `default` — An unexpected error response.

## Changes

- **2026-07-13** (2018-09-01-preview) `74e240995f3e` — 1 info
  - api tag `Attestation` removed
- **2026-07-13** (2018-09-01-preview) `e2463a10f80d` — 1 breaking
  - api path removed without deprecation
- **2026-07-13** (2018-09-01-preview) `cb7cc16888f7` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/azure/apis/attestation-attestation/changes/attest/Tpm/post.md)

---

[API](https://skmtc.dev/azure/apis/attestation-attestation.md) · [All operations](https://skmtc.dev/azure/apis/attestation-attestation/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/azure/attestation-attestation/revisions/74e240995f3e/schema)