Audit

Runs the digital tax audit over the invoices already stored for the authenticated company — without generating a file or relying on an external validator. Scope: NF-e (model 55), production invoices only (homologation is ignored). It runs two rules: numbering gaps/omissions (numbers missing between the lowest and highest authorized number, per series) and duplicates (the same key stored more than once, or the same order authorized more than once). The period is optional; without a period, it audits all of the company's invoices.

Required headers

Header	Type	Description
token	string	Company token
sign	string	MD5 signature
timestamp	string	Unix timestamp in seconds

Body — parameters (all optional)

Field	Type	Description
month	number	Month (1–12). Has top priority: audits the whole month. Combine with year.
year	number	Year of month (default: current year). Ignored without month.
start_date	string	Start of the period, in dd/MM/yyyy or dd/MM/yyyy HH:mm:ss format. Without the time, it assumes 00:00:00. São Paulo time zone. Used when month is not sent.
end_date	string	End of the period (same format). The end is exclusive — for a full month, use the 1st day of the following month (e.g., 01/07/2026).
start_create_time	number	Start of the period as a Unix timestamp (milliseconds). Used when month and start_date/end_date are not sent.
end_create_time	number	End of the period as a Unix timestamp (milliseconds, exclusive).

All fields are optional. Precedence: month (+year) › start_date/end_date › start_create_time/end_create_time › none (audits all invoices).

Response — fields

Field	Type	Description
periodo	object	Period actually audited (São Paulo time zone), with de and ate; null when no period (audited everything).
notas_puladas	array	Numbering rule. Each item = { serie, quantidade, notas }, where notas are the missing numbers joined by comma.
notas_duplicadas	array	Duplicate rule. Each item carries quantidade + registros[] and is identified by chave (same document stored more than once) or by pedido (same order authorized more than once). Each record = { serie, numero, chave, status, emitida_em }.