LinkModel API Documentation

Use these pages to find the right answer quickly.

Category	Questions covered
Authentication	API keys, bearer tokens, environment variables, and key safety.
Billing & Pricing	How requests are priced, where to check usage, and what affects cost.
API Integration	Endpoint selection, schemas, SDK usage, and request formats.
Tasks & Polling	`task_id`, terminal states, polling intervals, and output URLs.
CLI	CLI setup, credentials, JSON output, and automation workflows.
Troubleshooting	Common errors, failed tasks, missing outputs, and support details.

Most common questions

Which endpoint should I call?

Use POST /image-generation for image models and POST /video-generation for video models. Chat-compatible endpoints are listed separately in the API Reference.

Why does the create endpoint return a task instead of the final asset?

Image and video generation can take time, so create endpoints return a task_id. Use the matching query endpoint to poll status and retrieve final output URLs when generation completes.

How do I know which parameters a model supports?

Open the model page in the API Reference. Each model page defines the exact request schema, required fields, enum values, defaults, pricing notes, and live request playground.

What should I include when contacting support?

Include the request_id, task_id, model name, endpoint, request payload, and the approximate request time. Do not share your API key.