What's new

Video requests support element references and first/last frames

Use element references to keep a subject consistent across a video, and set the first and last frame of the clip. Supported parameters differ by model; see the model's API reference.

Run image tasks in the background

Submit an image generation or edit as a background task and get a task ID. Poll its status, or get a webhook when it finishes. The task reports progress and the final cost, so a long render does not hold a connection open.

Use a background task when a render can take longer than your client timeout.

Rate-limit errors tell you when to retry

A 429 response includes a Retry-After header, so your client can wait the right time before it retries.

TokenLab MCP server for coding agents

Coding agents can look up model IDs, prices and API details through the TokenLab MCP server before they write integration code. Lookups do not call a model, so they are not charged.

Responses API over WebSocket

If your client cannot keep a server-sent events (SSE) stream open, create and continue Responses API calls over WebSocket instead.

Speech, transcription and translation APIs

Generate speech from text, transcribe audio and translate audio with the same API key and balance you use for text models.

Model list includes capabilities

The models API returns the capabilities of each model, so tools and agents can check which models they can call and what each one supports without reading the docs.

Reusable Seedance reference assets

Upload reference images and videos once as Seedance assets, validate them, and reuse them across video requests. Manage them through the API or on the Seedance assets page in Console.

3D generation API

Create 3D models through the API. Each job returns a task ID: check its status, then download the result files when it is done.

Usage export and Management API

Export usage records from Console, or read usage and billing for each API key through the Management API. Use them for reconciliation and internal dashboards.

API base URL migration and compatibility

The API base URL moved to https://api.tokenlab.sh. The previous address, https://api.lemondata.cc, remained available during the announced compatibility window ending July 1, 2026.

Use https://api.tokenlab.sh for new integrations.

Embedding and rerank APIs

Call embedding and rerank models with the same API key and balance as chat. Errors use the same format as the other endpoints.

Webhooks for async tasks

Get a webhook when an async task completes, fails or times out, instead of polling its status.