Create an invoice

Build and stamp a CFDI 4.0 from friendly JSON. The issuer comes from `fiscal_profile_id` (the only body field the schema hard-requires); every other field is validated in the service, which returns a precise error with remediation if something is missing or wrong. Required for type I (ingreso) and E (egreso): `customer` and at least one `items` line, each with `product_key`, `unit_key`, `quantity`, and `unit_price`, plus `payment_form` and `payment_method` (PUE|PPD; PPD forces payment_form "99"), and a `use` (invoice-level or `customer.use`). Type E (nota de crédito) also requires `relation` ({ type "01" or "03", uuids }). Type P (pago): omit `items`/`payment_form`/`payment_method` and supply `payments` (complemento de pagos 2.0). Set `draft: true` to hold a signed draft and stamp it later. Send an Idempotency-Key to make retries safe.

POST /v1/invoices

Create an invoice

cURL

curl --request POST \
  --url https://api.newinvoice.dev/v1/invoices \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "fiscal_profile_id": "fp_2P9K3sample",
  "type": "I",
  "customer": {
    "rfc": "XAXX010101000",
    "name": "PUBLICO EN GENERAL",
    "tax_regime": "616",
    "postal_code": "06000",
    "cfdi_use": "S01"
  },
  "items": [
    {
      "product_key": "01010101",
      "unit_key": "H87",
      "description": "Consultoria",
      "quantity": "1",
      "unit_price": "100.00",
      "taxes": [
        {
          "type": "IVA",
          "rate": "0.160000",
          "factor": "Tasa"
        }
      ]
    }
  ],
  "payment_form": "03",
  "payment_method": "PUE",
  "metadata": {
    "order_id": "ord_1789"
  }
}
'

import requests

url = "https://api.newinvoice.dev/v1/invoices"

payload = {
    "fiscal_profile_id": "fp_2P9K3sample",
    "type": "I",
    "customer": {
        "rfc": "XAXX010101000",
        "name": "PUBLICO EN GENERAL",
        "tax_regime": "616",
        "postal_code": "06000",
        "cfdi_use": "S01"
    },
    "items": [
        {
            "product_key": "01010101",
            "unit_key": "H87",
            "description": "Consultoria",
            "quantity": "1",
            "unit_price": "100.00",
            "taxes": [
                {
                    "type": "IVA",
                    "rate": "0.160000",
                    "factor": "Tasa"
                }
            ]
        }
    ],
    "payment_form": "03",
    "payment_method": "PUE",
    "metadata": { "order_id": "ord_1789" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    fiscal_profile_id: 'fp_2P9K3sample',
    type: 'I',
    customer: {
      rfc: 'XAXX010101000',
      name: 'PUBLICO EN GENERAL',
      tax_regime: '616',
      postal_code: '06000',
      cfdi_use: 'S01'
    },
    items: [
      {
        product_key: '01010101',
        unit_key: 'H87',
        description: 'Consultoria',
        quantity: '1',
        unit_price: '100.00',
        taxes: [{type: 'IVA', rate: '0.160000', factor: 'Tasa'}]
      }
    ],
    payment_form: '03',
    payment_method: 'PUE',
    metadata: {order_id: 'ord_1789'}
  })
};

fetch('https://api.newinvoice.dev/v1/invoices', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.newinvoice.dev/v1/invoices",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'fiscal_profile_id' => 'fp_2P9K3sample',
    'type' => 'I',
    'customer' => [
        'rfc' => 'XAXX010101000',
        'name' => 'PUBLICO EN GENERAL',
        'tax_regime' => '616',
        'postal_code' => '06000',
        'cfdi_use' => 'S01'
    ],
    'items' => [
        [
                'product_key' => '01010101',
                'unit_key' => 'H87',
                'description' => 'Consultoria',
                'quantity' => '1',
                'unit_price' => '100.00',
                'taxes' => [
                                [
                                                                'type' => 'IVA',
                                                                'rate' => '0.160000',
                                                                'factor' => 'Tasa'
                                ]
                ]
        ]
    ],
    'payment_form' => '03',
    'payment_method' => 'PUE',
    'metadata' => [
        'order_id' => 'ord_1789'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.newinvoice.dev/v1/invoices"

	payload := strings.NewReader("{\n  \"fiscal_profile_id\": \"fp_2P9K3sample\",\n  \"type\": \"I\",\n  \"customer\": {\n    \"rfc\": \"XAXX010101000\",\n    \"name\": \"PUBLICO EN GENERAL\",\n    \"tax_regime\": \"616\",\n    \"postal_code\": \"06000\",\n    \"cfdi_use\": \"S01\"\n  },\n  \"items\": [\n    {\n      \"product_key\": \"01010101\",\n      \"unit_key\": \"H87\",\n      \"description\": \"Consultoria\",\n      \"quantity\": \"1\",\n      \"unit_price\": \"100.00\",\n      \"taxes\": [\n        {\n          \"type\": \"IVA\",\n          \"rate\": \"0.160000\",\n          \"factor\": \"Tasa\"\n        }\n      ]\n    }\n  ],\n  \"payment_form\": \"03\",\n  \"payment_method\": \"PUE\",\n  \"metadata\": {\n    \"order_id\": \"ord_1789\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.newinvoice.dev/v1/invoices")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"fiscal_profile_id\": \"fp_2P9K3sample\",\n  \"type\": \"I\",\n  \"customer\": {\n    \"rfc\": \"XAXX010101000\",\n    \"name\": \"PUBLICO EN GENERAL\",\n    \"tax_regime\": \"616\",\n    \"postal_code\": \"06000\",\n    \"cfdi_use\": \"S01\"\n  },\n  \"items\": [\n    {\n      \"product_key\": \"01010101\",\n      \"unit_key\": \"H87\",\n      \"description\": \"Consultoria\",\n      \"quantity\": \"1\",\n      \"unit_price\": \"100.00\",\n      \"taxes\": [\n        {\n          \"type\": \"IVA\",\n          \"rate\": \"0.160000\",\n          \"factor\": \"Tasa\"\n        }\n      ]\n    }\n  ],\n  \"payment_form\": \"03\",\n  \"payment_method\": \"PUE\",\n  \"metadata\": {\n    \"order_id\": \"ord_1789\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.newinvoice.dev/v1/invoices")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"fiscal_profile_id\": \"fp_2P9K3sample\",\n  \"type\": \"I\",\n  \"customer\": {\n    \"rfc\": \"XAXX010101000\",\n    \"name\": \"PUBLICO EN GENERAL\",\n    \"tax_regime\": \"616\",\n    \"postal_code\": \"06000\",\n    \"cfdi_use\": \"S01\"\n  },\n  \"items\": [\n    {\n      \"product_key\": \"01010101\",\n      \"unit_key\": \"H87\",\n      \"description\": \"Consultoria\",\n      \"quantity\": \"1\",\n      \"unit_price\": \"100.00\",\n      \"taxes\": [\n        {\n          \"type\": \"IVA\",\n          \"rate\": \"0.160000\",\n          \"factor\": \"Tasa\"\n        }\n      ]\n    }\n  ],\n  \"payment_form\": \"03\",\n  \"payment_method\": \"PUE\",\n  \"metadata\": {\n    \"order_id\": \"ord_1789\"\n  }\n}"

response = http.request(request)
puts response.read_body

201

{
  "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"
}

{
  "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"
}

{
  "type": "https://errors.invoiceapi.mx/invoice_already_stamped",
  "title": "Invoice already stamped",
  "status": 409,
  "code": "invoice.already_stamped",
  "detail": "This invoice is already stamped.",
  "remediation": "Fetch the stamped invoice; do not re-stamp.",
  "doc_url": "/docs/errors#invoice-already_stamped",
  "request_id": "req_2P9K3sample"
}

{
  "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"
}

{
  "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"
}

{
  "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"
}

{
  "type": "https://errors.invoiceapi.mx/pac_internal_error",
  "title": "PAC internal error",
  "status": 502,
  "code": "pac.internal_error",
  "detail": "The stamping service reported a transient internal error.",
  "remediation": "Retry with backoff; idempotency guards against duplicate stamps.",
  "doc_url": "/docs/errors#pac-internal_error",
  "request_id": "req_2P9K3sample"
}

Authorizations

Authorization · string · header · required

API key: Authorization: Bearer sk_test_... or sk_live_....

Headers

Invoice-Version · string

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.

Example:

"2026-07-10"

Invoice-Account · string

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.

Example:

"org_2P9connectedacct"

Idempotency-Key · string

Safely retry any POST. The first response is stored for 24h and replayed byte-for-byte for identical retries (the replay adds an idempotent-replayed: true header). Reusing the key with a different body is 409 idempotency.key_reuse; an in-flight duplicate is 409 idempotency.key_processing. This makes retrying a 502/429 safe — no duplicate stamp.

Example:

"a1b2c3d4-e5f6-4789-8abc-1234567890ab"

Query Parameters

expand · string string[]

Comma-separated related objects to inline, e.g. "fiscal_profile".

expand[] · string string[]

Bracket-array form of expand, e.g. ?expand[]=fiscal_profile.

Body

application/json

fiscal_profile_id · string · required

Id of the fiscal profile (issuer) to stamp with, e.g. "fp_2P9K3sample".

Minimum string length: 1

type · enum<string> · default: I

CFDI TipoDeComprobante: "I" ingreso (default), "E" egreso (nota de crédito), "P" pago.

Available options: I, E, P

serie · string

CFDI Serie (optional invoice series prefix).

Required string length: 1 - 25

folio · string

CFDI Folio; auto-assigned when omitted.

Required string length: 1 - 40

date · string

CFDI Fecha, ISO-8601; defaults to now at build time. Must be within the past 72 hours.

payment_form · enum<string>

c_FormaPago code (FormaPago), e.g. "01" efectivo, "03" transferencia, "99" por definir. Required for type I/E; forced to "99" when payment_method is PPD. See GET /v1/catalogs/payment_forms (or the SAT catalogs guide) for each code's meaning.

Available options: 01, 02, 03, 04, 05, 06, 08, 12, 13, 14, 15, 17, 23, 24, 25, 26, 27, 28, 29, 30, 31, 99

payment_method · enum<string>

c_MetodoPago: "PUE" pago en una sola exhibición or "PPD" pago en parcialidades o diferido. Required for type I/E.

Available options: PUE, PPD

currency · enum<string> · default: MXN

c_Moneda currency code (Moneda), e.g. "MXN" (default) or "USD". See GET /v1/catalogs/currencies (or the SAT catalogs guide) for each code's meaning.

Available options: MXN, USD, EUR, CAD, GBP, JPY, CHF, CNY, AUD, BRL, ARS, COP, CLP, PEN, DKK, SEK, NOK, HKD, SGD, NZD, KRW, XXX

exchange_rate · string number

TipoCambio: MXN per 1 unit of currency; required when currency is neither MXN nor XXX.

Pattern: ^-?\d+(\.\d+)?$

use · enum<string>

c_UsoCFDI code (UsoCFDI), e.g. "G03"; falls back to customer.use. Required for type I/E. See GET /v1/catalogs/uso_cfdi (or the SAT catalogs guide) for each code's meaning.

Available options: G01, G02, G03, I01, I02, I03, I04, I05, I06, I07, I08, D01, D02, D03, D04, D05, D06, D07, D08, D09, D10, S01, CP01, CN01

export · enum<string> · default: 01

c_Exportacion code (Exportacion). Default "01" (no aplica); other codes need the Comercio Exterior complement (not supported in v1). See GET /v1/catalogs/export_types (or the SAT catalogs guide) for each code's meaning.

Available options: 01, 02, 03, 04

relation · object

CFDI relation (CfdiRelacionados). Required for type E (nota de crédito).

Show child attributes

customer · object

Customer (Receptor) — who the invoice is for.

Show child attributes

items · object[]

Line items (Conceptos). Required for type I/E; must be empty for type P.

Show child attributes

payments · object[]

Complemento de pagos 2.0 entries. Required for and only valid on type P.

Show child attributes

global_information · object

InformacionGlobal for a factura global (público en general XAXX010101000).

Show child attributes

draft · boolean

Hold the invoice as a signed draft instead of stamping it immediately (default false).

metadata · object

Integrator-owned key-value map (≤50 keys), stored and echoed back verbatim.

Show child attributes

{key} · any

Response

201

application/json

Default Response

object · enum<string> · required

Always "invoice".

Available options: invoice

id · string · required

Invoice id, e.g. "inv_2P9K3sample".

livemode · boolean · required

True if stamped with a live-mode key against the real SAT.

status · enum<string> · required

Lifecycle status: draft, stamping (in flight), stamped, or stamp_failed.

Available options: draft, stamping, stamped, stamp_failed

type · enum<string> · required

CFDI TipoDeComprobante: "I" ingreso, "E" egreso (nota de crédito), "P" pago.

Available options: I, E, P

fiscal_profile_id · string · required

Id of the fiscal profile (issuer) that stamped this invoice.

serie · string | null · required

CFDI Serie, or null if unset.

folio · string | null · required

CFDI Folio, or null if unset.

customer · object · required

The receptor (customer) as stamped onto the CFDI.

Show child attributes

currency · string · required

c_Moneda currency code, e.g. "MXN".

subtotal · string | null · required

Sum of line amounts before taxes, decimal string, e.g. "100.00".

total · string | null · required

Grand total including taxes, decimal string, e.g. "116.00".

uuid · string | null · required

SAT folio fiscal (UUID) once stamped, else null.

stamped_at · string | null · required

When the CFDI was stamped (ISO-8601 UTC), or null.

sello_cfd · string | null · required

Issuer digital seal (Sello del CFDI), or null.

sello_sat · string | null · required

SAT digital seal from the TimbreFiscalDigital, or null.

no_certificado_sat · string | null · required

SAT certificate serial that timbró the CFDI, or null.

cancellation · object · required

Cancellation status for this CFDI.

Show child attributes

error · any | null · required

The last stamping error (problem+json shape) when status is stamp_failed, else null.

xml_url · string · required

Path to download the CFDI XML, e.g. "/v1/invoices/:id/xml".

pdf_url · string · required

Path to download the CFDI PDF, e.g. "/v1/invoices/:id/pdf".

metadata · object · required

Integrator-owned key-value map echoed back.

Show child attributes

created_at · string · required

Creation timestamp, ISO-8601 UTC.

updated_at · string · required

Last-update timestamp, ISO-8601 UTC.

fiscal_profile · object

The full issuer profile — present only when ?expand=fiscal_profile is requested.

Show child attributes