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Cloudflare Workers AI exposes a public Chat Completions API. Use this page to prepare a candidate endpoint for Threetone’s dashboard connection probe. Provider API availability does not establish a supported Threetone runtime integration.
Custom-model publication is currently rejected with custom_llm_execution_unavailable. A successful connection test does not publish an agent or start a conversation.

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Prepare the candidate

Cloudflare documents the account-specific base URL and bearer-token authentication in its API compatibility reference. Use a text-generation model, not an embedding model. Do not paste the full /chat/completions endpoint into Server URL; Threetone appends that path.

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Run a controlled probe

1

Confirm account access

Check the account ID, model access, and token permissions with the account owner. Keep the token in approved secret storage. Do not place it in an agent prompt or a public example.
2

Enter the custom configuration

Open the agent’s LLM selection, choose Custom LLM, and fill the fields above. Follow the custom-model workflow. Secret environment references resolve against production during the probe, so verify that value before testing.
3

Test and inspect

Test connection makes a real provider request and can consume provider usage. The probe requests a streaming text response with stream_options.include_usage: true. Verify that the selected endpoint accepts this request and produces assistant text; ordinary JSON or a tool-only stream does not pass.
For failures, distinguish an incorrect account path, insufficient token access, unavailable model, and incompatible streaming response. Keep safe error details without the token. Review endpoint compatibility before changing the endpoint shape. Preserve a reviewed candidate as a complete server draft and read it back. Use the managed model catalog when selecting currently documented managed options.

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Frequently asked questions

No. The probe calls a public HTTPS API base URL. A Workers binding is a different execution interface.
No. The current Threetone probe accepts Chat Completions only. Provider support for another API does not change that boundary.