FAQ
Other clients
Common questions about the Base URL format, Cherry Studio, Cursor, CC Switch, magpie and Claude Desktop.
404, or /v1/v1 in the address
Section titled “404, or /v1/v1 in the address”The client adds /v1 itself, and you wrote it as well. Check the table for your tool:
| Tool | Base URL |
|---|---|
| Claude Code, Claude Desktop, Anthropic SDK | https://2api.dev |
| Codex | https://2api.dev/v1 |
| OpenAI SDK, OpenClaw, ClawX, Cursor | https://2api.dev/v1 |
| Cherry Studio | https://2api.dev |
Don’t end the address with paths such as /chat/completions or /messages.
Cherry Studio fails to fetch the model list
Section titled “Cherry Studio fails to fetch the model list”- Enter only
https://2api.devas the API Host. Check that the preview below the box is.../v1/chat/completions. - If the list can’t be loaded, click Add and enter the model name by hand.
- Use a key from a GPT group and set the provider type to OpenAI.
Error “only allows Claude Code clients” or “Client not allowed”
Section titled “Error “only allows Claude Code clients” or “Client not allowed””This group only allows official clients (Claude Code or Codex). Third-party clients such as Cherry Studio and Cursor are rejected. Use it in an official client. To use GPT in a third-party client, use a key from a GPT group. If Codex itself is rejected (codex_version_too_low), upgrade Codex.
How to connect Cursor
Section titled “How to connect Cursor”See Other OpenAI-compatible clients. To use GPT in Cursor, installing the Codex extension is the better choice.
CC Switch import does nothing
Section titled “CC Switch import does nothing”Clicking Import to CCS (导入到 CCS) does nothing when CC Switch isn’t installed on this computer, or when the browser hasn’t been allowed to open ccswitch:// links. First check that CC Switch starts normally, then click import again. When the browser shows a prompt, choose Allow.
CC Switch changes don’t take effect, or plugin and MCP settings are gone
Section titled “CC Switch changes don’t take effect, or plugin and MCP settings are gone”magpie test returns 503 or 502
Section titled “magpie test returns 503 or 502”- 503 saying only Claude Code clients are allowed: this is a group restriction. Real use in Claude Code is not affected.
- 502: usually your proxy software is intercepting local addresses. Add direct rules for
127.0.0.0/8and::1. - For more, see the magpie notes.
Claude Desktop can’t find the third-party inference entry
Section titled “Claude Desktop can’t find the third-party inference entry”First check that you turned on Help → Troubleshooting → Enable Developer Mode, then look for Developer → Configure third-party inference. If it is still missing, your version or account environment doesn’t support it. Use Claude Code for now. For more cases, see Claude Desktop.