> ## Documentation Index > Fetch the complete documentation index at: https://docs.mixpeek.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Redeem Promo > Redeem a promo code on a FRESH org — no Checkout, no card. A promo code lets you continue without entering a card. This creates the subscription server-side with the coupon attached (the self-serve twin of the manual comp flow), stamps ``metadata.organization_id`` so the subscription webhook grants tier + POC cap, and sets the org's plan fields inline so the user continues IMMEDIATELY (no webhook-latency paywall). Only codes whose window bills $0 (percent_off=100 — every POC code by validated shape) can start service card-less: a partial discount with no payment method would generate a FAILING first invoice (service cut + dunning — strictly worse than the card form; the uncollectable shape POC-PROMO-CAP-2026-07-17 exists to prevent). Partial codes get a clear redirect to checkout, where the discount still applies. Card-ask happens at coupon end (finances' T-7d lifecycle). Every failure carries a reason — never a silent no-op. ## OpenAPI ````yaml post /v1/organizations/billing/redeem-promo openapi: 3.1.0 info: title: Mixpeek API description: >- This is the Mixpeek API, providing access to various endpoints for data processing and retrieval. termsOfService: https://mixpeek.com/terms contact: name: Mixpeek Support url: https://mixpeek.com/contact email: info@mixpeek.com version: '0.82' servers: - url: https://api.mixpeek.com description: Production security: - BearerAuth: [] paths: /v1/organizations/billing/redeem-promo: post: tags: - Organization Billing summary: Redeem Promo description: >- Redeem a promo code on a FRESH org — no Checkout, no card. A promo code lets you continue without entering a card. This creates the subscription server-side with the coupon attached (the self-serve twin of the manual comp flow), stamps ``metadata.organization_id`` so the subscription webhook grants tier + POC cap, and sets the org's plan fields inline so the user continues IMMEDIATELY (no webhook-latency paywall). Only codes whose window bills $0 (percent_off=100 — every POC code by validated shape) can start service card-less: a partial discount with no payment method would generate a FAILING first invoice (service cut + dunning — strictly worse than the card form; the uncollectable shape POC-PROMO-CAP-2026-07-17 exists to prevent). Partial codes get a clear redirect to checkout, where the discount still applies. Card-ask happens at coupon end (finances' T-7d lifecycle). Every failure carries a reason — never a silent no-op. operationId: redeem_promo_v1_organizations_billing_redeem_promo_post parameters: [] requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/RedeemPromoRequest' responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/RedeemPromoResponse' '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: Forbidden content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Not Found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - BearerAuth: [] components: schemas: RedeemPromoRequest: properties: code: type: string maxLength: 64 minLength: 1 title: Code plan: type: string title: Plan description: >- Plan slug to start on the comped window (product_tier, e.g. managed_build). Must be self-serve and match the code's product restriction. default: managed_build onboarding_answers: anyOf: - $ref: '#/components/schemas/OnboardingAnswers' - type: 'null' description: >- Signup questions — persisted server-side for GTM attribution, parity with the card path (the no-CC cohort is the highest-sales-relevance cohort; client-event-only isn't joinable with the server-side funnel data). The $5/answer credit is NOT minted here — the comped window bills $0, so there is nothing to offset. type: object required: - code title: RedeemPromoRequest RedeemPromoResponse: properties: redeemed: type: boolean title: Redeemed code: type: string title: Code plan: type: string title: Plan account_type: type: string title: Account Type subscription_id: type: string title: Subscription Id poc_usage_cap_cents: anyOf: - type: integer - type: 'null' title: Poc Usage Cap Cents description: >- POC promo usage ceiling (cents), granted via the subscription webhook (cap_source=poc_promo:*). duration_in_months: anyOf: - type: integer - type: 'null' title: Duration In Months type: object required: - redeemed - code - plan - account_type - subscription_id title: RedeemPromoResponse ErrorResponse: properties: success: type: boolean title: Success description: Always false for error responses default: false status: type: integer title: Status description: HTTP status code for this error error: $ref: '#/components/schemas/ErrorDetail' description: Error details payload type: object required: - status - error title: ErrorResponse description: Error response model. examples: - error: details: id: ns_123 resource: namespace message: Namespace not found type: NotFoundError status: 404 success: false HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError OnboardingAnswers: properties: building: anyOf: - type: string maxLength: 2000 - type: 'null' title: Building description: What are you building? referral_source: anyOf: - type: string maxLength: 500 - type: 'null' title: Referral Source description: How did you hear about Mixpeek? type: object title: OnboardingAnswers description: |- Optional signup questions — each non-empty answer takes $5 off the first invoice (max $10). Answers are persisted for GTM attribution. ErrorDetail: properties: message: type: string title: Message description: Human-readable error message type: type: string title: Type description: Stable error type identifier (machine-readable) code: anyOf: - type: string - type: 'null' title: Code description: >- Fine-grained error code for programmatic handling (e.g., namespace_name_taken, feature_extractor_not_found). Present only when consumers may need to branch on a specific error condition. details: anyOf: - additionalProperties: true type: object - type: 'null' title: Details description: >- Optional structured details to help debugging (validation errors, IDs, etc.) type: object required: - message - type title: ErrorDetail description: Error detail model. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError securitySchemes: BearerAuth: type: http scheme: bearer description: >- Mixpeek API key, sent as `Authorization: Bearer mxp_sk_...`. Create one in Studio under Settings → API Keys, or with an admin key via `POST /v1/organizations/users/{user_email}/api-keys`. A missing header returns 403; an invalid or revoked key returns 401. ````