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LongCat provides a hosted API for LongCat-2.0, a reasoning model built for coding and agentic workloads. OpenClaw provides the official longcat plugin for LongCat’s OpenAI-compatible endpoint.
PropertyValue
Providerlongcat
AuthLONGCAT_API_KEY
APIOpenAI-compatible Chat Completions
Base URLhttps://api.longcat.chat/openai
Modellongcat/LongCat-2.0
Context1,048,576 tokens
Max output131,072 tokens
InputText

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Install plugin

Install the official package, then restart Gateway: 
openclaw plugins install @openclaw/longcat-provider
openclaw gateway restart

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Getting started

1

Create an API key

Sign in to the LongCat API Platform and create a key on the API Keys page.
2

Run onboarding

openclaw onboard --auth-choice longcat-api-key
3

Verify the model

openclaw models list --provider longcat
Onboarding adds the hosted catalog and selects longcat/LongCat-2.0 when no primary model is already configured.

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Non-interactive setup

openclaw onboard --non-interactive \
  --mode local \
  --auth-choice longcat-api-key \
  --longcat-api-key "$LONGCAT_API_KEY"

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Reasoning behavior

LongCat exposes binary thinking control. OpenClaw maps enabled thinking levels to thinking: { type: "enabled" } and /think off to thinking: { type: "disabled" }. LongCat does not currently document reasoning_effort, so OpenClaw does not send it. LongCat returns reasoning in reasoning_content. OpenClaw preserves that field when replaying assistant tool-call turns so multi-turn agent sessions retain the provider’s expected message shape.

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Pricing

The built-in catalog uses LongCat’s pay-as-you-go list prices in USD per million tokens: 0.75uncachedinput,0.75 uncached input, 0.015 cached input, and $2.95 output. LongCat may offer temporary discounts; the pricing page and your billing records are authoritative.

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Self-hosted LongCat-2.0

The longcat provider targets LongCat’s hosted API. For the open weights on Hugging Face, serve the model through an OpenAI-compatible runtime and use OpenClaw’s existing vLLM or SGLang provider instead. Keep the runtime’s exact model identifier in the self-hosted provider catalog; do not route a local deployment through longcat/LongCat-2.0.

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Troubleshooting

Daemon-managed Gateway processes do not inherit every interactive shell variable. Put LONGCAT_API_KEY in ~/.openclaw/.env, configure it through onboarding, or use an approved secret reference.
402 means the account has insufficient token quota. 429 means the API key hit a rate limit. Check LongCat usage and retry rate-limited requests after the provider’s backoff window.
Run openclaw plugins list and confirm the longcat plugin is enabled, then run openclaw models list --provider longcat.

Model providers

Provider configuration, model refs, and failover behavior.

LongCat API docs

Hosted API endpoints, authentication, limits, and examples.

LongCat-2.0 model card

Architecture, deployment guidance, and model details.

Secrets

Store provider credentials without embedding plaintext in config.