mcp-compressor

A proxy server that wraps existing MCP servers to significantly reduce token consumption by compressing tool descriptions into a two-step interface. It enables users to integrate extensive toolsets without exceeding context limits or incurring high API costs.

→ atlassian-labs/mcp-compressor · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 7 credentials: API_KEY, BARE_TOKEN, MCP_COMPRESSOR_TEST_TOKEN, MCP_TOKEN, MY_KEY, MY_TOKEN, TEST_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretAPI_KEY

🔐 secretBARE_TOKEN

configEXTRA_ARG

configMCP_COMPRESSOR_BINARY

🔐 secretMCP_COMPRESSOR_TEST_TOKEN

configMCP_HOST

🔐 secretMCP_TOKEN

configMISSING_VAR

🔐 secretMY_KEY

🔐 secretMY_TOKEN

configPYTHON

🔐 secretTEST_TOKEN

configUNSET_VAR

configXDG_CONFIG_HOME

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/atlassian-labs-mcp-compressor-y7e7n3)](https://m8ven.ai/mcp/atlassian-labs-mcp-compressor-y7e7n3)

commit: a46dc69d41cd430009e49fe436841284ef6e463a

code hash: 52e2d99a0e259b191047f57d944a450f6d45045f67d8ad288512d43608f68a35

verified: 6/12/2026, 11:26:29 AM

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