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

# Redeem a call proof

> No API key: holding the decision token is the credential  
Answers whether the decision still stands — the mandate it was made on is still live, or the policy version it read is still current. Nothing is spent: it may be asked again until the token lapses



## OpenAPI

````yaml /versions/2026-11-02.yaml post /call-proofs/redeem
openapi: 3.1.0
info:
  title: Humanos API
  description: Humanos API
  version: '1.0'
  contact: {}
servers:
  - url: https://api.humanos.tech
security: []
tags:
  - name: Agents
  - name: Requests
  - name: Credentials
  - name: Approval
  - name: User
  - name: Actions
  - name: Audit trail
  - name: DID
  - name: Call proof
  - name: Webhooks
paths:
  /call-proofs/redeem:
    post:
      tags:
        - Call proof
      summary: Redeem a call proof
      description: >-
        No API key: holding the decision token is the credential  

        Answers whether the decision still stands — the mandate it was made on
        is still live, or the policy version it read is still current. Nothing
        is spent: it may be asked again until the token lapses
      operationId: call_proof_redeem
      parameters:
        - $ref: '#/components/parameters/ApiVersion'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RedeemCallProofDto'
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RedemptionEntity'
        '400':
          description: Not a decision token this platform signed, or one past its life.
          content:
            application/json:
              schema:
                type: object
                properties:
                  statusCode:
                    type: number
                    example: 400
                  message:
                    type: string
                    example: signature_invalid
                  error:
                    type: string
                    example: Bad Request
components:
  parameters:
    ApiVersion:
      name: API-Version
      in: header
      required: false
      schema:
        type: string
        pattern: ^\d{4}-\d{2}-\d{2}$
        example: '2026-11-02'
      description: >-
        Pin request, response, and webhook shapes to a specific dated API
        version (YYYY-MM-DD). Omit to use the version pinned to your API key
        (set when the key is created; new keys default to the latest version).
        New integrations should target the latest version.
  schemas:
    RedeemCallProofDto:
      type: object
      properties:
        token:
          type: string
          description: >-
            The decision token the call carried (`Humanos-Call-Proof`, or
            `_meta["tech.humanos/call-proof"]`), unchanged.
          example: >-
            eyJhbGciOiJFZERTQSIsInR5cCI6InZpYS1jYWxsLXByb29mK2p3dCJ9.eyJpc3MiOiJkaWQ6d2ViOmh1bWFub3MudGVjaCJ9.c2ln
          maxLength: 16384
      required:
        - token
    RedemptionEntity:
      type: object
      properties:
        live:
          type: boolean
          description: >-
            Whether the decision still stands: the mandate it was made on is
            still live, or the policy version it read is still the
            organization's current one.
          example: true
        reason:
          type: string
          description: >-
            Why it no longer stands, when `live` is false: the mandate's status
            (`credential_revoked`, `credential_expired`, …),
            `max_executions_reached`, `mandate_not_found`, `policy_superseded`
            or `policy_not_found`.
          example: credential_revoked
      required:
        - live

````

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