> ## Documentation Index
> Fetch the complete documentation index at: https://docs.redpill.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Attestation Report

> The legacy gateway attestation report.

`/v1/attestation/report` is a legacy endpoint kept for backward compatibility with earlier API clients. It **now** returns the **gateway's**
TEE attestation report, proving which gateway workload served your request. It is the same gateway
attestation as the canonical [`GET /v1/aci/attestation`](/api-reference/attestation); the two endpoints
share the same underlying report. New integrations should use the canonical endpoint.

The legacy form differs in two ways:

* It adds top-level `signing_address`, `signing_algo`, and `signing_public_key`, derived from the
  gateway's keyset for older clients.
* It collapses `all_attestations` to a single entry.

<Note>
  This endpoint **now** returns the gateway's attestation. Earlier API versions returned the
  upstream model's attestation here. With the attested gateway, the model provider's verification for a
  given response is recorded in the [receipt](/api-reference/receipts) (`upstream.verified` event) and
  the [attested session](/api-reference/sessions) instead.
</Note>

<ParamField query="nonce" type="string">
  A fresh random value (for example 16 bytes hex). The gateway binds it into the quote's `report_data`
  so you can prove the report is not a replay.
</ParamField>

## Response

The `attestation` object, `workload_id`, `workload_keyset_digest`, and `service_capabilities` match
[`GET /v1/aci/attestation`](/api-reference/attestation). The differences are the added top-level
`signing_address`, `signing_algo`, and `signing_public_key` fields, and the collapsed
`all_attestations` array. See the canonical page for the full field reference.

### `signing_algo` query parameter

Pass `?signing_algo=ecdsa` (default) or `?signing_algo=ed25519` to select which keyset key the legacy
`signing_address` and `signing_public_key` are derived from.

## Related

<CardGroup cols={2}>
  <Card title="Get attestation report" icon="microchip" href="/api-reference/attestation" />

  <Card title="Signature" icon="signature" href="/api-reference/signature" />
</CardGroup>