> ## Documentation Index > Fetch the complete documentation index at: https://invoiceapi.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Retrieve an invoice > Fetch one invoice by id. Pass `expand=fiscal_profile` to inline the issuer profile. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/invoices/{id} openapi: 3.1.0 info: title: Invoice API description: >- Mexican CFDI 4.0 invoicing API. Versioned via the Invoice-Version header; current: 2026-07-15. See GET /v1/versions. version: 0.1.0 servers: - url: https://api.newinvoice.dev description: Production - url: http://localhost:3000 description: Local development security: - bearerAuth: [] tags: - name: api_keys description: Platform API-key lifecycle (create, list, revoke) - name: accounts description: 'Connect: platform-owned connected accounts (multi-tenant)' - name: fiscal_profiles description: Emitter RFC + CSD/FIEL registration - name: invoices description: Create, stamp, cancel CFDI 4.0 invoices - name: validations description: Validate arbitrary CFDI XML - name: downloads description: SAT descarga masiva jobs - name: webhook_endpoints description: HMAC-signed event delivery - name: events description: Event log - name: balance description: Remaining stamp credits - name: usage description: Metered usage records (stamps consumed) - name: catalogs description: SAT reference catalogs (uso CFDI, payment forms/methods, tax regimes, …) - name: docs description: Served documentation (error catalog + guides) paths: /v1/invoices/{id}: get: tags: - invoices summary: Retrieve an invoice description: >- Fetch one invoice by id. Pass `expand=fiscal_profile` to inline the issuer profile. parameters: - schema: anyOf: - type: string - type: array items: type: string in: query name: expand required: false description: Comma-separated related objects to inline, e.g. "fiscal_profile". - schema: anyOf: - type: string - type: array items: type: string in: query name: expand[] required: false description: Bracket-array form of `expand`, e.g. ?expand[]=fiscal_profile. - schema: type: string minLength: 1 in: path name: id required: true description: Invoice id, e.g. "inv_2P9K3sample". - $ref: '#/components/parameters/InvoiceVersion' - $ref: '#/components/parameters/InvoiceAccount' responses: '200': description: Default Response content: application/json: schema: type: object properties: object: type: string description: Always "invoice". enum: - invoice id: type: string description: Invoice id, e.g. "inv_2P9K3sample". livemode: type: boolean description: True if stamped with a live-mode key against the real SAT. status: type: string enum: - draft - stamping - stamped - stamp_failed description: >- Lifecycle status: draft, stamping (in flight), stamped, or stamp_failed. type: type: string enum: - I - E - P description: >- CFDI TipoDeComprobante: "I" ingreso, "E" egreso (nota de crédito), "P" pago. fiscal_profile_id: type: string description: >- Id of the fiscal profile (issuer) that stamped this invoice. serie: anyOf: - type: string - type: 'null' description: CFDI Serie, or null if unset. folio: anyOf: - type: string - type: 'null' description: CFDI Folio, or null if unset. customer: type: object properties: rfc: type: string description: Customer (receptor) RFC. name: type: string description: Customer legal name (razón social). zip: anyOf: - type: string - type: 'null' description: >- Customer fiscal-domicile ZIP (DomicilioFiscalReceptor). tax_regime: anyOf: - type: string - type: 'null' description: Customer c_RegimenFiscal code. use: anyOf: - type: string - type: 'null' description: Customer c_UsoCFDI code, e.g. "G03". required: - rfc - name - zip - tax_regime - use additionalProperties: false description: The receptor (customer) as stamped onto the CFDI. currency: type: string description: c_Moneda currency code, e.g. "MXN". subtotal: anyOf: - type: string - type: 'null' description: >- Sum of line amounts before taxes, decimal string, e.g. "100.00". total: anyOf: - type: string - type: 'null' description: >- Grand total including taxes, decimal string, e.g. "116.00". uuid: anyOf: - type: string - type: 'null' description: SAT folio fiscal (UUID) once stamped, else null. stamped_at: anyOf: - type: string - type: 'null' description: When the CFDI was stamped (ISO-8601 UTC), or null. sello_cfd: anyOf: - type: string - type: 'null' description: Issuer digital seal (Sello del CFDI), or null. sello_sat: anyOf: - type: string - type: 'null' description: SAT digital seal from the TimbreFiscalDigital, or null. no_certificado_sat: anyOf: - type: string - type: 'null' description: SAT certificate serial that timbró the CFDI, or null. cancellation: type: object properties: status: type: string enum: - none - cancel_pending - cancelled - cancel_rejected description: >- Cancellation state: "none" not requested, "cancel_pending" awaiting receptor/SAT, "cancelled" done, "cancel_rejected" receptor rejected. reason: anyOf: - type: string - type: 'null' description: >- SAT motivo de cancelación (01-04) if requested, else null. substitute_invoice_id: anyOf: - type: string - type: 'null' description: >- Replacement CFDI id when cancelled with reason "01", else null. acuse_available: type: boolean description: True when the SAT acuse de cancelación is retrievable. required: - status - reason - substitute_invoice_id - acuse_available additionalProperties: false description: Cancellation status for this CFDI. error: anyOf: - {} - type: 'null' description: >- The last stamping error (problem+json shape) when status is stamp_failed, else null. xml_url: type: string description: >- Path to download the CFDI XML, e.g. "/v1/invoices/:id/xml". pdf_url: type: string description: >- Path to download the CFDI PDF, e.g. "/v1/invoices/:id/pdf". metadata: type: object propertyNames: type: string additionalProperties: type: string description: Integrator-owned key-value map echoed back. fiscal_profile: description: >- The full issuer profile — present only when `?expand=fiscal_profile` is requested. type: object properties: object: type: string description: Always "fiscal_profile". enum: - fiscal_profile id: type: string description: Fiscal-profile id, e.g. "fp_2P9K3sample". rfc: type: string description: Issuer RFC, derived from the CSD certificate. legal_name: type: string description: Issuer legal name (razón social). tax_regime: type: string description: c_RegimenFiscal code of the issuer, e.g. "601". zip: type: string description: Issuer fiscal-domicile ZIP (LugarExpedicion). csd: type: object properties: serial: type: string description: >- CSD certificate serial number (número de certificado). valid_from: type: string description: CSD validity start, ISO-8601 UTC. valid_to: type: string description: CSD validity end (expiry), ISO-8601 UTC. rfc: type: string description: RFC embedded in the CSD certificate. required: - serial - valid_from - valid_to - rfc additionalProperties: false description: >- Public metadata of the stored CSD (never the private key). status: type: string enum: - requires_action - active description: >- Derived readiness state. "requires_action": the carta manifiesto is not yet signed, so this profile CANNOT stamp CFDIs. "active": the manifiesto is signed and the profile is authorized to stamp for its RFC. Derived from manifest_status at serialization time. has_fiel: type: boolean description: >- True when a FIEL (e.firma) is stored (used to sign the carta manifiesto and for descarga masiva). manifest_status: type: string enum: - pending_signature - signed description: Carta-manifiesto signing state. manifest_signed_at: anyOf: - type: string - type: 'null' description: >- When the carta manifiesto was signed (ISO-8601 UTC), or null if unsigned. next_actions: type: array items: type: object properties: type: type: string description: >- Stable, machine-readable action identifier, e.g. "sign_manifest". message: type: string description: >- Human- and agent-readable explanation of what to do and why. endpoint: type: string description: >- The exact API call that performs the action, e.g. "POST /v1/fiscal_profiles/fp_123/manifest". requires: type: array items: type: string description: >- Inputs the action needs, e.g. ["fiel"] — the taxpayer's FIEL (e.firma). required: - type - message - endpoint - requires additionalProperties: false description: >- Actions to make this profile active (identical content to pending_actions). Empty when active. pending_actions: type: array items: type: object properties: type: type: string description: >- Stable, machine-readable action identifier, e.g. "sign_manifest". message: type: string description: >- Human- and agent-readable explanation of what to do and why. endpoint: type: string description: >- The exact API call that performs the action, e.g. "POST /v1/fiscal_profiles/fp_123/manifest". requires: type: array items: type: string description: >- Inputs the action needs, e.g. ["fiel"] — the taxpayer's FIEL (e.firma). required: - type - message - endpoint - requires additionalProperties: false description: >- Outstanding actions before this profile can stamp CFDIs (identical content to next_actions). Empty when active. metadata: type: object propertyNames: type: string additionalProperties: type: string description: Integrator-owned key-value map echoed back. brand_color: anyOf: - type: string - type: 'null' description: PDF accent color (#RRGGBB), or null if unset. has_logo: type: boolean description: >- Whether a PDF logo is stored (the raw data URL is not echoed to keep responses small). livemode: type: boolean description: True if this profile was created with a live-mode key. created_at: type: string description: Creation timestamp, ISO-8601 UTC. updated_at: type: string description: Last-update timestamp, ISO-8601 UTC. required: - object - id - rfc - legal_name - tax_regime - zip - csd - status - has_fiel - manifest_status - manifest_signed_at - next_actions - pending_actions - metadata - brand_color - has_logo - livemode - created_at - updated_at additionalProperties: false created_at: type: string description: Creation timestamp, ISO-8601 UTC. updated_at: type: string description: Last-update timestamp, ISO-8601 UTC. required: - object - id - livemode - status - type - fiscal_profile_id - serie - folio - customer - currency - subtotal - total - uuid - stamped_at - sello_cfd - sello_sat - no_certificado_sat - cancellation - error - xml_url - pdf_url - metadata - created_at - updated_at additionalProperties: false example: object: invoice id: obj_2P9K3sample livemode: false status: draft type: I fiscal_profile_id: fp_2P9K3sample serie: string folio: string customer: rfc: XAXX010101000 name: string zip: string tax_regime: string use: string currency: MXN subtotal: '116.00' total: '116.00' uuid: 5FB2822E-396D-4725-8521-CDC4BDD20CCF stamped_at: '2026-07-10T18:25:43Z' sello_cfd: string sello_sat: string no_certificado_sat: string cancellation: status: none reason: string substitute_invoice_id: inv_2P9K3sample acuse_available: true error: string xml_url: https://example.com/webhooks/invoice pdf_url: https://example.com/webhooks/invoice metadata: {} fiscal_profile: object: fiscal_profile id: obj_2P9K3sample rfc: XAXX010101000 legal_name: string tax_regime: string zip: string csd: serial: string valid_from: string valid_to: string rfc: XAXX010101000 status: requires_action has_fiel: true manifest_status: pending_signature manifest_signed_at: '2026-07-10T18:25:43Z' next_actions: - type: string message: string endpoint: string requires: - string pending_actions: - type: string message: string endpoint: string requires: - string metadata: {} brand_color: string has_logo: true livemode: false created_at: '2026-07-10T18:25:43Z' updated_at: '2026-07-10T18:25:43Z' created_at: '2026-07-10T18:25:43Z' updated_at: '2026-07-10T18:25:43Z' headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' '401': description: Missing or invalid API key. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://errors.invoiceapi.mx/auth_unauthorized title: Authentication required status: 401 code: auth.unauthorized detail: Missing or invalid API key. remediation: >- Send `Authorization: Bearer sk_test_...` (or sk_live_...) with a valid API key. doc_url: /docs/errors#auth-unauthorized request_id: req_2P9K3sample headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' '404': description: Resource not found in this org + mode. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://errors.invoiceapi.mx/resource_not_found title: Resource not found status: 404 code: resource.not_found detail: No such id in this org + mode. remediation: >- Verify the id and that the key mode (test/live) matches the id. doc_url: /docs/errors#resource-not_found request_id: req_2P9K3sample headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' '422': description: Request validation failed. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://errors.invoiceapi.mx/cfdi_invalid_input title: Invalid invoice status: 422 code: cfdi.invalid_input detail: 'items.0.unit_price: expected a decimal string.' remediation: >- Fix every field listed in `errors` and resubmit. See /openapi.json for the schema. doc_url: /docs/errors#cfdi-invalid_input request_id: req_2P9K3sample headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' '429': description: Rate limit exceeded — back off per the Retry-After header. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://errors.invoiceapi.mx/rate_limit_exceeded title: Rate limit exceeded status: 429 code: rate_limit.exceeded detail: >- Too many requests for this key + request class (reads and writes are limited separately). remediation: >- Back off and retry after the number of seconds in the Retry-After header; batch work or lower your request rate. doc_url: /docs/errors#rate_limit-exceeded request_id: req_2P9K3sample headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' Retry-After: $ref: '#/components/headers/RetryAfter' '500': description: Internal server error. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' example: type: https://errors.invoiceapi.mx/internal_error title: Internal server error status: 500 code: internal.error detail: An unexpected error occurred. remediation: >- Retry later; contact support with the request_id if it persists. doc_url: /docs/errors#internal-error request_id: req_2P9K3sample headers: Request-Id: $ref: '#/components/headers/RequestId' Invoice-Version: $ref: '#/components/headers/InvoiceVersionResponse' traceparent: $ref: '#/components/headers/Traceparent' components: parameters: InvoiceVersion: name: Invoice-Version in: header required: false description: >- Pin a dated API release (Stripe-style). Omit to use the current version. An unknown value returns 400 `request.invalid_version`. Echoed back on every response. schema: type: string example: '2026-07-10' InvoiceAccount: name: Invoice-Account in: header required: false description: >- Connect: act on behalf of one of your connected accounts (its `acct_…`/`org_…` id). Omit to act as your own organization. Not honored on /v1/api_keys. schema: type: string example: org_2P9connectedacct headers: RequestId: description: >- Unique id for this request. Also the `request_id` in every error body — log it and quote it to support; idempotency keys off it too. schema: type: string example: req_2P9K3sample InvoiceVersionResponse: description: >- The dated API version resolved for this request (request header → key pin → current). Echoed on every response. schema: type: string example: '2026-07-15' Traceparent: description: >- W3C Trace Context. When you send a valid `traceparent`, the response continues the trace (same trace-id, a fresh span-id, sampled flag). schema: type: string example: 00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01 RateLimitLimit: description: >- IETF draft rate-limit: the ceiling of the token bucket consulted for this request class (reads and writes have independent buckets). schema: type: integer example: 100 RateLimitRemaining: description: 'IETF draft rate-limit: tokens left in the bucket after this request.' schema: type: integer example: 99 RateLimitReset: description: 'IETF draft rate-limit: seconds until the bucket refills to its ceiling.' schema: type: integer example: 1 RetryAfter: description: >- Seconds to wait before retrying (RFC 9110). Present on 429 and on retryable upstream failures. schema: type: integer example: 1 schemas: Problem: type: object description: RFC 9457 problem+json error with agent-first extensions. properties: type: type: string format: uri title: type: string status: type: integer code: type: string description: Stable dotted machine code to switch on. detail: type: string remediation: type: string description: Actionable next step for a human or agent. request_id: type: string pac: type: object properties: provider: type: string codigo: type: string mensaje: type: string errors: type: array items: type: object properties: field: type: string message: type: string required: - type - title - status - code - request_id securitySchemes: bearerAuth: type: http scheme: bearer description: 'API key: `Authorization: Bearer sk_test_...` or `sk_live_...`.' ````