vCard QR Code Generator
vCard QR Code Generator creates privacy-first contact QR codes for business cards, digital business cards, resumes, badges, and email signatures.
Developer API and Agent Resources
Agents can integrate with the public REST API, OpenAPI spec, MCP server, markdown docs, JSON error contract, and sandbox-style test endpoints without requiring API keys for basic vCard payload generation.
- Developer portal
- vcardqrcodegenerator API docs
- OpenAPI spec
- Auth docs and API key policy
- Webhooks docs
- Rate limits and deprecation policy
- API health check
- JSON error response example
- Streamable HTTP MCP endpoint
- llms.txt
- Markdown homepage fallback
JSON Error Contract
API errors return application/json with error.code, error.message, error.hint, error.docsUrl, and error.status so agents can recover without parsing HTML.
Sandbox and API Keys
The public sandbox-style endpoints do not require API keys: use GET /api/v1/health, GET /api/v1/product, GET /api/v1/templates, and POST /api/v1/vcard with sample contact data.
