Verify if a person's name matches their Chinese ID card number (实名认证/身份证二要素验证). Returns match result, gender, age, birth date, province, issuing authority and validity period. Use when users need KYC identity verification, real-name authentication, or ID card validation. Requires 18-digit Chinese ID card number. Free tier: 50 requests/day.

Verify if a person's name, ID card number, and phone number match (手机三要素验证). Returns match result, carrier info, phone region and status. Use for phone number ownership verification, telecom fraud prevention, or user registration validation. Free tier: 50 requests/day.

Verify if a person's name, ID card, and bank card number match (银行卡三/四要素验证). Supports both 3-element (name+ID+card) and 4-element (name+ID+card+phone) verification. Returns match result, bank name, card type and level. Use for payment verification, bank account validation, or financial KYC. Free tier: 50 requests/day.

Compare two face photos to determine if they belong to the same person (人脸比对/人像对比). Returns similarity score (0-100), same-person judgment, confidence level, and face quality scores. Use for identity verification with photo, face authentication, or liveness detection scenarios. Images must be base64 encoded. Free tier: 30 requests/day.

Query Chinese enterprise/company registration information by name or unified social credit code (企业工商信息查询). Returns company name, legal representative, registered capital, establishment date, business status, address, business scope, and industry. Use for business partner due diligence, company background check, or enterprise KYC. Free tier: 30 requests/day.

Check enterprise risk status including blacklist, administrative penalties, business abnormalities, dishonesty records and litigation (企业风险查询). Returns risk level, penalty records, abnormal count, dishonest count, lawsuit count and risk score. Use for enterprise credit assessment, supply chain risk management, or investment due diligence. Free tier: 30 requests/day.

Query vehicle information by license plate number (车辆信息查询). Returns vehicle brand/model, type, engine number, VIN, registration date, usage type, fuel type, status and estimated mileage. Use for used car evaluation, vehicle background check, or fleet management. Supports standard Chinese license plates. Free tier: 30 requests/day.

Get vehicle risk assessment score by license plate number (车辆风控评分). Returns risk score (0-100), risk level, speeding/fatigue/accident/violation counts, night driving ratio, and insurance status. Use for fleet risk management, logistics risk control, or vehicle insurance assessment. Free tier: 30 requests/day.

OCR recognition for Chinese documents - extract structured text from ID cards, bank cards, driver licenses, and vehicle licenses (证件OCR识别). Returns recognized fields with confidence score. Supports: id_card_front (身份证正面), id_card_back (身份证背面), bank_card (银行卡), driver_license (驾驶证), vehicle_license (行驶证). Use for document digitization, automated form filling, or identity document processing. Free tier: 20 requests/day.

Comprehensive personal risk assessment based on name and ID card (个人综合风险评估). Returns risk score (0-100), risk level, multi-loan index, court execution records, overdue risk, credit suggestion, risk tags and detailed analysis. Use for personal credit evaluation, loan risk assessment, or customer risk profiling. Phone number is optional but improves accuracy. Free tier: 20 requests/day.