Model Integration and Configuration for ID Document KYC

ID document data primarily comes from physical document images issued by official issuing authorities, or fields returned by structured verification

What This Type of Data Looks Like

ID document data primarily comes from physical document images issued by official issuing authorities, or fields returned by structured verification APIs. The data update rhythm is real-time submission triggered by a single business operation, with no fixed batch update cycle. Documents are fixed-layout printed or electronic credentials, containing fields such as full name, citizen ID number, residential address, issuing authority, and validity period. The citizen ID number is an 18-character combination, and the validity period uses the YYYY-MM-DD format to mark time units.

Constraints Imposed on Model Integration and Configuration

The fixed layout and structured field characteristics of ID documents require prioritizing multi-modal image parsing capabilities during model integration, with corresponding multi-modal invocation parameters configured. The real-time submission update rhythm triggered by single business operations requires matching the model invocation timeout duration to the conventional time required for image parsing, to avoid business timeouts. The clear format of fixed fields requires binding entity extraction prompts with verification rules for corresponding fields, such as character length verification for 18-digit ID numbers and legality verification for date formats, to prevent extraction results from deviating from business requirements. Additionally, transmission and storage requirements for image data require configuring file upload size limit parameters, to avoid invocation failures caused by large-sized files.

How to Set Up Configurations

Configuration ItemRecommended ValueRationale
MODEL_TYPEmultimodalAdapts to the multi-modal parsing needs of ID document images, supports image input and text extraction
UPLOAD_FILE_MAX_SIZE5 MBCovers transmission and storage of high-definition ID document scans, prevents upload failures caused by overly large files
PARSE_FILE_TIMEOUT_SECONDS120 secondsMatches the conventional time required for OCR and structured extraction, prevents business invocation timeouts
ENTITY_EXTRACT_PROMPTPlease extract full name, citizen ID number, residential address, issuing authority, and validity period from the provided ID document image, and return the specified fields in standard JSON formatBinds the fixed field structure of ID documents, ensures extraction results are uniform and compliant in format
VALIDATE_FIELD_FORMATEnabledVerifies the legality of fields such as citizen ID number length and date format, filters invalid extraction results

The parameter values provided on this page are common recommendations used as a starting point for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis, and it is recommended to test on your own samples before finalizing settings.

Three Common Configuration Mistakes

  • Symptom: The configured multimodal model does not appear in the model provider list. Cause: The MODEL_API_BASE parameter was not correctly filled in config.json, or the configuration contains syntax errors.
  • Symptom: Model invocation returns a 401 unauthorized error. Cause: The official universal account key was directly used as the MODEL_API_KEY configuration, without using the exclusive key from the corresponding model service provider.
  • Symptom: No structured result is output after parsing completes. Cause: The ENTITY_EXTRACT_PROMPT did not explicitly specify the output format, or the model did not follow the prompt instructions to generate content that meets requirements.

How to Verify a Successful Configuration

  • Access the model management interface, check if the configured model type matches business requirements, and confirm that the MODEL_TYPE parameter matches the configuration item.
  • Upload a standard ID document image for testing, verify that the uploaded file size complies with the UPLOAD_FILE_MAX_SIZE setting.
  • Review the field completeness of parsing results, confirm that extracted content matches the fields specified in ENTITY_EXTRACT_PROMPT.
  • Simulate multiple invocation processes, check if response duration meets the time expectations of the business scenario, and avoid triggering exceptions due to timeouts.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.