Integrating Anthropic's Claude Models with OpenClaw

In OpenClaw, integrating with Anthropic's Claude models is streamlined through the use of API keys and the Claude CLI. For standard API access and usage-based billing, creating an API key in the Anthropic Console is recommended. The setup process is straightforward, allowing users to onboard with either interactive or non-interactive commands. OpenClaw supports adaptive thinking defaults for Claude 4.6 models, which can be customized per message or model parameters.

OpenClaw's fast mode toggle facilitates efficient API requests by mapping to different service tiers, with the ability to override defaults through explicit serviceTier parameters. Prompt caching is another feature supported by OpenClaw, where cache retention can be configured for different durations, such as 'short' for 5 minutes or 'long' for an hour. This flexibility allows for tailored caching strategies per agent, optimizing performance and cost.

The 1M context window feature is available in beta for supported models, requiring explicit configuration and credential approval from Anthropic. OpenClaw logs warnings if legacy token auth is used with this feature, defaulting back to standard context windows. Additionally, the Claude CLI backend is supported, with OpenClaw treating its usage as sanctioned unless Anthropic updates its policy.

For troubleshooting, common issues like expired tokens or missing API keys are addressed with clear guidance on re-onboarding or configuring keys. OpenClaw provides detailed status checks and troubleshooting resources to ensure smooth integration and operation with Anthropic's services.