A Model Context Protocol (MCP) server that provides access to multiple Large Language Model (LLM) APIs including ChatGPT, Claude, DeepSeek, Gemini
Most AI and media services work still happens through a UI a human drives. Cross Llm MCP MCP server moves it into the conversation instead. A Model Context Protocol (MCP) server that provides access to multiple Large Language Model (LLM) APIs including ChatGPT, Claude, DeepSeek, Gemini, Grok, Kimi, Perplexity, Mistral, and Hugging Face Inference Router.
The server publishes 5 tools. What each one is for:
OpenAI — https://platform.openai.com/api-keysAnthropic — https://console.anthropic.com/DeepSeek — https://platform.deepseek.com/Perplexity — https://www.perplexity.ai/hubMistral — https://console.mistral.ai/Configuration is passed through the environment: OPENAI_API_KEY, ANTHROPIC_API_KEY, DEEPSEEK_API_KEY, GEMINI_API_KEY, XAI_API_KEY, KIMI_API_KEY, PERPLEXITY_API_KEY, MISTRAL_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.
This sits in the AI and media services group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Cross Llm MCP's toolset — OpenAI, Anthropic, DeepSeek and 2 more — is a fair guide to whether it matches your workflow. It is maintained by jamesanz; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| OpenAI | [https://platform.openai.com/api-keys](https://platform.openai.com/api-keys) |
| Anthropic | [https://console.anthropic.com/](https://console.anthropic.com/) |
| DeepSeek | [https://platform.deepseek.com/](https://platform.deepseek.com/) |
| Perplexity | [https://www.perplexity.ai/hub](https://www.perplexity.ai/hub) |
| Mistral | [https://console.mistral.ai/](https://console.mistral.ai/) |
{
"mcpServers": {
"cross-llm": {
"command": "npx",
"args": ["-y", "cross-llm-mcp"],
"env": {
"OPENAI_API_KEY": "your-value",
"ANTHROPIC_API_KEY": "your-value",
"DEEPSEEK_API_KEY": "your-value",
"GEMINI_API_KEY": "your-value",
"XAI_API_KEY": "your-value",
"KIMI_API_KEY": "your-value",
"PERPLEXITY_API_KEY": "your-value",
"MISTRAL_API_KEY": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| OPENAI_API_KEY | Credential the server authenticates with. | Yes |
| ANTHROPIC_API_KEY | Credential the server authenticates with. | Yes |
| DEEPSEEK_API_KEY | Credential the server authenticates with. | Yes |
| GEMINI_API_KEY | Credential the server authenticates with. | Yes |
| XAI_API_KEY | Credential the server authenticates with. | Yes |
| KIMI_API_KEY | Credential the server authenticates with. | Yes |
| PERPLEXITY_API_KEY | Credential the server authenticates with. | Yes |
| MISTRAL_API_KEY | Credential the server authenticates with. | Yes |
Build a programmable telecommunications stack for connecting telephony services with the Internet via a cloud-based utility.
Search built for AI, not humans — semantic web search that returns model-ready content, plus code context.
Answers, not links — delegate questions to Perplexity's search-grounded models and get cited responses back.
Give your assistant a voice — text-to-speech, voice cloning and audio tools from the ElevenLabs API.
Give your assistant a real code sandbox — isolated cloud VMs for actually running the code it writes.
The ML hub in your context window — search models, datasets, papers and run Spaces from the official server.