Docs · Providers

Meituan LongCat in Claude Code and Codex

LongCat is Meituan's model platform, serving its own LongCat models at api.longcat.chat. Accounts from longcat.chat and longcat.ai share that host: Chat Completions and Responses under /openai/v1, Anthropic Messages under /anthropic. Add LongCat in magpie, and Claude Code's, Codex's, Gemini CLI's and OpenCode's requests go as they are, with magpie's local gateway on 127.0.0.1:3425 routing them and holding the key.

Add LongCat

Add the providerOn Providers, click ＋ Add provider, pick LongCat, paste the key and save.
Pick it for a toolOn Agents, pick a model such as LongCat-2.0 on a tool's row.

Keys are made at longcat.chat/platform/api_keys.

Terminal

magpie claude longcat/LongCat-2.0
magpie codex longcat/LongCat-2.0
magpie opencode longcat/LongCat-2.5-Preview

Endpoints

API	Endpoint
Chat Completions	`https://api.longcat.chat/openai/v1`
Responses	`https://api.longcat.chat/openai/v1`
Anthropic Messages	`https://api.longcat.chat/anthropic`
/models	`https://api.longcat.chat/openai/v1/models`

Both take the key as Authorization: Bearer; with x-api-key alone LongCat answers missing_api_key, and magpie's Anthropic requests carry the key in both x-api-key and a Bearer by default, so they pass. An entry another app has at these endpoints is imported as LongCat.

Models

magpie gives LongCat-2.0 and LongCat-2.5-Preview, then reads LongCat's list from /openai/v1/models and serves that. Model names are case-sensitive; write them as the list does.

In each agent

Claude Code speaks Anthropic Messages. LongCat has an Anthropic endpoint, so requests go as they are. See Claude Code with other models.
Codex speaks only OpenAI Responses. LongCat serves Responses, so Codex's requests go as they are. The models show in Codex's /model. See Codex with other models.
Gemini CLI speaks Gemini's API; magpie points it at the local gateway and translates. See Gemini CLI with other models.
OpenCode: magpie writes the models into opencode.json. See OpenCode with other models.

FAQ

How do I use LongCat in Claude Code?

Add LongCat in magpie with your longcat.chat platform key, then pick LongCat-2.0 on Claude Code's row, or run magpie claude longcat/LongCat-2.0. Requests go to https://api.longcat.chat/anthropic.

Does LongCat work in Codex?

Yes. LongCat serves Responses under /openai/v1, so magpie passes Codex's requests through. Run magpie codex longcat/LongCat-2.0.

Why does Claude Code get missing_api_key from LongCat directly?

LongCat takes the key only as Authorization: Bearer and refuses x-api-key alone. Through magpie, the key goes in both x-api-key and a Bearer by default.

Does a longcat.ai account work?

Yes. longcat.chat and longcat.ai accounts share api.longcat.chat; add LongCat in magpie for either.

The same for other providers: StepFun, Xiaomi MiMo, DeepSeek, GLM Coding Plan, Kimi, DeepSeek, Qwen. Hit an error? See troubleshooting, or ask on Discord.