MCP Server for SlimContext - AI chat history compression tools
Connect Slimcontext to Claude, Cursor or any other MCP client and it stops being a tab you switch to. MCP Server for SlimContext - AI chat history compression tools. The slimcontext mcp server is what makes that connection.
A Model Context Protocol (MCP) server that wraps the SlimContext library, providing AI chat history compression tools for MCP-compatible clients.
SlimContext MCP Server exposes two powerful compression strategies as MCP tools:
slimcontext-mcp-server on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
trim_messages — Compresses chat history using token-based trimming strategysummarize_messages — Compresses chat history using AI-powered summarization strategyConfiguration is passed through the environment: OPENAI_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.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Slimcontext's toolset — trim_messages, summarize_messages — is a fair guide to whether it matches your workflow. It is maintained by agentailor; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| trim_messages | Compresses chat history using token-based trimming strategy. |
| summarize_messages | Compresses chat history using AI-powered summarization strategy. |
{
"mcpServers": {
"slimcontext": {
"command": "npx",
"args": ["-y", "slimcontext-mcp-server"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| OPENAI_API_KEY | Credential the server authenticates with. | Yes |
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