shayaShav/flatten-mcp

Overview

Flatten-mcp is an MCP server that compresses Claude Code sessions by removing irrelevant intermediate events while preserving every prompt and response verbatim. This allows resuming long sessions at a significantly lower token count, reducing costs and bypassing context limits.

Best for

Best for
Developers who need to manage long, token-heavy Claude Code sessions without losing any prompt or response history

Use cases

• Reduce token usage in ongoing Claude Code sessions
• Restart a session from a full transcript without loss of detail
• Archive verbose coding sessions for later reference or resumption

Notes

Flatten-mcp is an MCP server that compresses Claude Code sessions by removing irrelevant intermediate events while preserving every prompt and response verbatim. This allows resuming long sessions at a significantly lower token count, reducing costs and bypassing context limits.

0 stars on GitHub. Last updated 2026-06-14. Licensed MIT.

Use cases

• Reduce token usage in ongoing Claude Code sessions
• Restart a session from a full transcript without loss of detail
• Archive verbose coding sessions for later reference or resumption

Pros

• Preserves the exact conversation history without omissions
• Lowers token count directly, which can reduce API costs and extend usable context
• Operates as a simple MCP server, easy to integrate into existing Claude workflows

Cons

• Only works within the MCP ecosystem and with compatible clients like Claude Code
• No clear maintenance guarantee, as the repository has 0 stars and is a personal project
• Requires manual selection of what to strip, which may affect comprehension of the session

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.