Occasio MCP Server
Occasio is a local proxy that sits between your AI coding agent (Claude Code, Cline, or anything that talks to the Anthropic API) and whichever LLM endpoint you configured. Every tool call passes through one human-readable policy file you control. You can see what is leaving your machine in real time, block what should not happen, and end up with a tamper-evident hash-chained log that a third party can verify…
People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.
VERIFIED ACTIVE
LAST COMMIT 2026-06-24 · ★ 9 · #109 OF 194 MAINTAINED CODING AGENT · VERIFIED 2026-08-25
Apache-2.0 · JavaScript servers · how we verify → /methodology
01 · Install Occasio
before you install - you'll need
The README does not document required environment variables for a basic install.
Claude Code
claude mcp add occasiolabs-occasio -- npx -y @occasiolabs/occasio Claude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"occasiolabs-occasio": {
"command": "npx",
"args": [
"-y",
"@occasiolabs/occasio"
]
}
}
} Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions
license Apache-2.0 - declared in the repository
npm package @occasiolabs/occasio - published under the repo owner's npm scope (@occasiolabs)
registry namespace io.github.occasiolabs is GitHub-verified and matches the repo owner
03 · Who maintains Occasio
occasio is maintained by occasiolabs. It's the only MCP server we track from this author; the repo dates to May 2026.
04 · Facts
- repository
- github.com/occasiolabs/occasio
- category
- coding agent - ranked #109 of 194 actively-maintained coding agent servers as of 2026-08-25.
- registry
- io.github.occasiolabs/occasio (active, first published 2026-05-15 · 2 versions)
- packages
- npm:@occasiolabs/occasio
05 · Occasio FAQ
What is Occasio?
Occasio is a local proxy that sits between your AI coding agent (Claude Code, Cline, or anything that talks to the Anthropic API) and whichever LLM endpoint you configured. Every tool call passes through one human-readable policy file you control. You can see what is leaving your machine in real time, block what should not happen, and end up with a tamper-evident hash-chained log that a third party can verify…
Is Occasio still maintained?
Yes - as of 2026-08-25, its last commit was 2026-06-24. We re-verify nightly.
How do I install Occasio?
Run `npx -y @occasiolabs/occasio`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.
Does Occasio run locally?
Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.
06 · Alternatives to Occasio
Alternatives to Occasio
Maintained coding agent servers if Occasio isn't the fit.
- Serena A powerful toolkit for coding, providing semantic retrieval and editing capabilities. ★ 28,461 · 2026-08-20
- Desktop Commander MCP server for terminal commands, file operations, and process management ★ 9,387 · 2026-08-21
- Ouroboros Pins an acceptance spec; the verify command and expected output never enter the success contract. ★ 5,649 · 2026-08-25
- Socraticode MCP server for local codebase indexing, semantic search, and code dependency graphs. ★ 3,274 · 2026-08-24
- Magic Cloud Self-hosted low-code platform (Docker); its MCP endpoint runs on your own instance, not via npx. ★ 1,180 · 2026-08-24
- LLM Sandbox Securely run LLM-generated code in isolated containers across 7 languages and 3 container backends. ★ 1,111 · 2026-08-23
Pairs well with
Servers that cover what Occasio doesn't - only shown when the pairing reason fits the companion.
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- X402 List MCP → filesystem companion filesystem · ★ 58
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