Source: https://ailoot.ai/docs/en/integrations/nextchat/
Canonical: https://ailoot.ai/docs/en/integrations/nextchat/
Language: en

[Chat applications](https://ailoot.ai/docs/en/integrations/#chat) 

# NextChat

[Markdown](https://ailoot.ai/docs/en/integrations/nextchat/index.md)

Self-hosted web chat · OpenAI Chat

| Format | Where to set it up |
| --- | --- |
| OpenAI Chat | Vercel / Docker: BASE\_URL, OPENAI\_API\_KEY, CUSTOM\_MODELS, DEFAULT\_MODEL |

## [](https://ailoot.ai/docs/en/integrations/nextchat/#setup)Setup

Copy the configuration and replace `sk-...` with your key from the Ailoot Dashboard. Prefer storing the key in the environment variable `AILOOT_API_KEY`, if the application supports it.

Before starting, request GET /v1/models with your Ailoot key. Choose an exact model ID whose methods include POST /v1/chat/completions, then use that ID in the configuration. For agents, also check tool support and the features required by your client version.

```bash
OPENAI_API_KEY=sk-...
BASE_URL=https://api.ailoot.ai
CUSTOM_MODELS=-all,+gpt-6.1-sol,+claude-sonnet-5-5,+deepseek-v4-pro
DEFAULT_MODEL=gpt-6.1-sol
```

Example model: `gpt-6.1-sol`. Choose any other model from the [catalog](https://ailoot.ai/models/en/) — check that it supports the format you need.

## [](https://ailoot.ai/docs/en/integrations/nextchat/#notes)Good to know

Use OpenAI Chat through the NextChat server for this setup. When deploying on Vercel or Docker, set BASE\_URL=https://api.ailoot.ai without /v1, OPENAI\_API\_KEY, CUSTOM\_MODELS and DEFAULT\_MODEL. Redeploy the server after changing these variables.

## [](https://ailoot.ai/docs/en/integrations/nextchat/#check)Test

- `BASE_URL=https://api.ailoot.ai`
- Ask a short question. If you get an error, check the code and Request ID, then consult [Errors and limits](https://ailoot.ai/docs/en/errors/).
- 402 — insufficient balance for the reserve. Agents reserve more than chat: [why](https://ailoot.ai/docs/en/billing/reserve/).

Application documentation: [https://github.com/ChatGPTNextWeb/NextChat#environment-variables](https://github.com/ChatGPTNextWeb/NextChat#environment-variables)

Still have questions? Send your Request ID and a description — we'll help you troubleshoot.[Contact support](mailto:support@ailoot.ai)

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