Services›USCIS (US Citizenship and Immigration Services)

USCIS (US Citizenship and Immigration Services)

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US federal agency managing lawful immigration to the United States, processing visa petitions, naturalization applications, asylum claims, and work authorization for millions of applicants annually.

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GET/api/v1/case-status/{receipt_number}

Check immigration case status by receipt number

Parameters

receipt_number13-character receipt number (stringrequired

Returns

case{receipt_number, form_type, status, description, last_updated}

GET/api/v1/processing-times

Get current processing times for immigration forms

Parameters

formI-130|I-485|I-765|I-90|N-400 (stringoptional

officefield office code (stringoptional

Returns

times[] with form, form_name, office, median_months, receipt_date_range

GET/api/v1/forms/search

Search USCIS forms and instructions

Parameters

qform name or number (stringrequired

Returns

forms[] with number, name, description, filing_fee, last_updated, pdf_url