Enable automatic SAT synchronization

curl --request POST \
  --url https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "sync_from": "string",
  "max_monthly_documents": 1,
  "phone": "string"
}
'

import requests

url = "https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync"

payload = {
    "sync_from": "string",
    "max_monthly_documents": 1,
    "phone": "string"
}
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({sync_from: 'string', max_monthly_documents: 1, phone: 'string'})
};

fetch('https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync', 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/fiscal_profiles/{id}/sync",
  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([
    'sync_from' => 'string',
    'max_monthly_documents' => 1,
    'phone' => 'string'
  ]),
  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/fiscal_profiles/{id}/sync"

	payload := strings.NewReader("{\n  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\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/fiscal_profiles/{id}/sync")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync")

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  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\n}"

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

{
  "object": "fiscal_profile_sync",
  "fiscal_profile_id": "fp_2P9K3sample",
  "rfc": "XAXX010101000",
  "enabled": true,
  "status": "inactive",
  "sync_from": "string",
  "synced_through": "string",
  "lag_days": -9007199254740991,
  "documents": 0,
  "checked_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/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"
}

{
  "type": "https://errors.invoiceapi.mx/fiscal_profile_in_use",
  "title": "Fiscal profile is in use",
  "status": 409,
  "code": "fiscal_profile.in_use",
  "detail": "The profile is referenced by issued invoices.",
  "remediation": "Profiles with invoices are retained; rotate the CSD instead of deleting.",
  "doc_url": "/docs/errors#fiscal_profile-in_use",
  "request_id": "req_2P9K3sample"
}

{
  "type": "https://errors.invoiceapi.mx/fiscal_profile_invalid_csd",
  "title": "Invalid CSD certificate or password",
  "status": 422,
  "code": "fiscal_profile.invalid_csd",
  "detail": "The CSD .cer/.key pair could not be opened.",
  "remediation": "Verify cer_base64 is the .cer, key_base64 is the .key, and the password.",
  "doc_url": "/docs/errors#fiscal_profile-invalid_csd",
  "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"
}

fiscal_profiles

Enable automatic SAT synchronization

Register this profile’s RFC for automatic SAT synchronization. We backfill the taxpayer’s CFDI history (up to the SAT’s 71-month limit) and then keep it current, mirroring both issued and received CFDIs. Authorizes with the FIEL (e.firma), not the CSD. Idempotent: re-enabling an already-registered RFC is a no-op. Expect synced_through to trail today by 1-3 days — the SAT does not publish a CFDI for bulk download until ~24-72h after it is issued.

POST

fiscal_profiles

{id}

sync

Enable automatic SAT synchronization

curl --request POST \
  --url https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "sync_from": "string",
  "max_monthly_documents": 1,
  "phone": "string"
}
'

import requests

url = "https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync"

payload = {
    "sync_from": "string",
    "max_monthly_documents": 1,
    "phone": "string"
}
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({sync_from: 'string', max_monthly_documents: 1, phone: 'string'})
};

fetch('https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync', 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/fiscal_profiles/{id}/sync",
  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([
    'sync_from' => 'string',
    'max_monthly_documents' => 1,
    'phone' => 'string'
  ]),
  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/fiscal_profiles/{id}/sync"

	payload := strings.NewReader("{\n  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\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/fiscal_profiles/{id}/sync")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.newinvoice.dev/v1/fiscal_profiles/{id}/sync")

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  \"sync_from\": \"string\",\n  \"max_monthly_documents\": 1,\n  \"phone\": \"string\"\n}"

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

{
  "object": "fiscal_profile_sync",
  "fiscal_profile_id": "fp_2P9K3sample",
  "rfc": "XAXX010101000",
  "enabled": true,
  "status": "inactive",
  "sync_from": "string",
  "synced_through": "string",
  "lag_days": -9007199254740991,
  "documents": 0,
  "checked_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/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"
}

{
  "type": "https://errors.invoiceapi.mx/fiscal_profile_in_use",
  "title": "Fiscal profile is in use",
  "status": 409,
  "code": "fiscal_profile.in_use",
  "detail": "The profile is referenced by issued invoices.",
  "remediation": "Profiles with invoices are retained; rotate the CSD instead of deleting.",
  "doc_url": "/docs/errors#fiscal_profile-in_use",
  "request_id": "req_2P9K3sample"
}

{
  "type": "https://errors.invoiceapi.mx/fiscal_profile_invalid_csd",
  "title": "Invalid CSD certificate or password",
  "status": 422,
  "code": "fiscal_profile.invalid_csd",
  "detail": "The CSD .cer/.key pair could not be opened.",
  "remediation": "Verify cer_base64 is the .cer, key_base64 is the .key, and the password.",
  "doc_url": "/docs/errors#fiscal_profile-invalid_csd",
  "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"
}

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"

Path Parameters

string

required

Fiscal profile id, e.g. fp_3k9.

Body

application/json

sync_from

string

How far back to backfill, yyyy-mm-dd. Clamped to the SAT limit (71 months back, floored to the 1st of that month). Defaults to the maximum history available.

Pattern: ^\d{4}-\d{2}-\d{2}$

max_monthly_documents

integer

Approximate CFDIs this taxpayer issues+receives per month. Used to size the SAT fetch chunks — set it realistically; a wrong estimate makes the backfill chunk badly.

Required range: x <= 1000000

phone

string

Notification phone in international format, e.g. "+5215512345678".

Maximum string length: 20

Response

Default Response

object

enum<string>

required

Available options:

fiscal_profile_sync

fiscal_profile_id

string

required

rfc

string

required

enabled

boolean

required

Whether automatic SAT synchronization is turned on.

status

enum<string>

required

healthy = the watermark is advancing. stalled = it has stopped moving; the upstream sync died and we are repairing it. pending = registered, first sync not yet observed.

Available options:

inactive,

pending,

healthy,

stalled

sync_from

string | null

required

Start of the historical backfill, yyyy-mm-dd.

synced_through

string | null

required

We have your CFDIs up to and including this date (yyyy-mm-dd). Expect this to trail today by 1-3 days: the SAT itself does not publish a CFDI for bulk download until ~24-72h after it is issued.

lag_days

integer | null

required

Days between synced_through and today. 1-3 is the healthy steady state.

Required range: -9007199254740991 <= x <= 9007199254740991

documents

integer

required

CFDIs mirrored for this profile so far.

Required range: 0 <= x <= 9007199254740991

checked_at

string | null

required

API Reference

docs

api_keys

accounts

fiscal_profiles

invoices

validations

downloads

sat_documents

webhook_endpoints

events

balance

usage

catalogs

versions

Enable automatic SAT synchronization

Authorizations

Headers

Path Parameters

Body

Response