Token efficiency: tools for developers

Tools that reduce token costs, compress context or cache LLM requests. An entry can appear under several use cases when its topics or description provide several explicit signals.

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90 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    MCP
    Active

    MCP server and proxy that compresses LLM prompts, tool output, and replies to cut token cost.

    ↓ 171 downloads/weekRustLicense: MPL-2.0

      mcpmeasured growthOpen source ↗

      Install claude mcp add llmtrim -- npx @llmtrim/cli

      222GitHub stars+6 (+2.8 %)
    • 2

      MCP
      Active

      Reduces AI agent token usage by 90% via context compression and task checkpoint persistence.

      ↓ 98 downloads/weekJavaScriptLicense: MIT

        mcpmeasured growthOpen source ↗

        Install claude mcp add smart-context-mcp -- npx smart-context-mcp

        4GitHub starsstable
      • 3

        MCP
        Dormant

        Save tokens while coding — your AI agent gets structured code context, not file dumps.

        ↓ 67 downloads/weekTypeScriptLicense: Apache-2.0

          mcpmeasured growthOpen source ↗

          Install claude mcp add codeweave -- npx @codeweave/mcp

          4GitHub starsstable
        • 4

          MCP
          Dormant

          Analyze your MCP setup: token costs, grades, duplicates, and optimization tips

          ↓ 62 downloads/weekTypeScriptLicense: MIT

            mcpmeasured growthOpen source ↗

            Install claude mcp add mcp-checkup -- npx mcp-checkup

            1GitHub starsstable
          • 5

            MCP
            Active

            Cut AI agent token costs 5-15x — routes only relevant code symbols instead of full files.

            ↓ 55 downloads/weekPythonLicense: MIT

              mcpmeasured growthOpen source ↗

              Install claude mcp add agent-booster -- uvx agent-booster

              1GitHub starsstable
            • 6

              MCP
              Active

              Cut vision-LLM token costs by snapping images to tile boundaries — Claude, GPT, Gemini, Llama, Qwen

              ↓ 53 downloads/weekRustLicense: NOASSERTION

                mcpmeasured growthOpen source ↗

                Install claude mcp add vision-squeezer -- npx vision-squeezer

                2GitHub starsstable
              • 7

                MCP
                Active

                Review and compact prompts, docs, and AI-agent skills to save tokens, preserving structure.

                ↓ 27 downloads/weekPythonLicense: MIT

                  mcpmeasured growthOpen source ↗

                  Install claude mcp add compactprompt -- uvx compactprompt

                  0GitHub starsstable
                • 8

                  MCP
                  Active

                  Token cost math for LLM API calls: verified per-1M-token rates for 69 models, 17 providers.

                  ↓ 27 downloads/weekJavaScriptLicense: MIT

                    mcpmeasured growthOpen source ↗

                    Install claude mcp add comparedge-llm-cost -- npx @comparedge/llm-cost-mcp

                    2GitHub starsstable
                  • 9

                    MCP
                    Active

                    MCP server that cuts AI coding agent token usage via framework-aware context optimization

                    ↓ 19 downloads/weekTypeScriptLicense: NOASSERTION

                      mcpmeasured growthOpen source ↗

                      Install claude mcp add ai-optimizer -- npx @ai-optimizer/core

                      0GitHub starsstable
                    • 10

                      MCP
                      Active

                      Reversible context compression for AI agents: cut token usage up to 94%, originals retrievable

                      ↓ 13 downloads/weekPythonLicense: Apache-2.0

                        mcpmeasured growthOpen source ↗

                        Install claude mcp add token_optimizer -- uvx slimctx

                        1GitHub starsstable
                      • 11

                        CLI
                        Active

                        CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

                        RustLicense: Apache-2.0
                        • agentic-coding
                        • ai-coding
                        • anthropic
                        • claude-code
                        • cli

                        githubmeasured growthOpen source ↗

                        78 349GitHub stars+703 (+0.91 %)
                      • 12

                        MCP
                        Active

                        Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

                        PythonLicense: Apache-2.0
                        • agent
                        • ai
                        • anthropic
                        • claude-code
                        • compression

                        githubmeasured growthOpen source ↗

                        68 629GitHub stars+784 (+1.2 %)
                      • 13

                        Skill
                        Active

                        Resume Claude Code work after rate/usage/context limits without replaying the prior transcript. Auto-saves at 90%/95% usage. Plugin-installable, 10 languages.

                        PowerShellLicense: MIT
                        • checkpoint
                        • claude-code
                        • claude-code-plugin
                        • claude-code-skills
                        • context

                        githubmeasured growthOpen source ↗

                        Install /plugin marketplace add sofumel/claude-handoff-revive

                        6GitHub starsstable
                      • 14

                        Skill
                        Active

                        Token-efficient Claude Code workspace with parallel agents and persistent memory. Research → Plan → Implement → Validate workflow.

                        JavaScript
                        • agent-memory
                        • agentic-coding
                        • ai-agents
                        • ai-coding
                        • claude-code-commands

                        githubmeasured growthOpen source ↗

                        Install /plugin marketplace add coalesce-labs/catalyst

                        20GitHub starsstable
                      • 15

                        MCP
                        Active

                        Lossless context compression: 2-8x fewer tokens, byte-exact recovery, search inside payloads

                        PythonLicense: MIT

                          mcpmeasured growthOpen source ↗

                          Install claude mcp add densely -- uvx densely

                          6GitHub starsstable
                        • 16

                          Skill
                          Active

                          Token-compression skill. An adaptation of caveman — short common words, trust context, say just enough, be laconic.

                          PythonLicense: MIT
                          • ai-assistant
                          • anthropic
                          • brevity
                          • claude
                          • claude-code

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add GabrielBarberini/laconic

                          19GitHub starsstable
                        • 17

                          Skill
                          Active

                          Local-first memory and prompt-cache layer for Claude Code

                          TypeScriptLicense: MIT
                          • agentic-ai
                          • agentic-coding
                          • ai
                          • ai-agents
                          • anthropic

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add riz007/somtum

                          7GitHub starsstable
                        • 18

                          MCP
                          Active

                          A MCP that turns PDFs into structured text, tables, figures, metadata, annotations, and page-level evidence for selective retrieval by MCP-compatible AI agents. Improves the information quality AI agents receive while also reducing token…

                          JavaScriptLicense: AGPL-3.0
                          • ai
                          • ai-tools
                          • claude
                          • claude-code
                          • claude-code-plugin

                          githubmeasured growthOpen source ↗

                          17GitHub starsstable
                        • 19

                          Skill
                          Active

                          A production-ready Claude Code setup. Global CLAUDE.md, coding rules, per-project memory, and token optimization.

                          ShellLicense: MIT
                          • ai-agents
                          • claude
                          • claude-code
                          • claude-code-plugin
                          • context-engineering

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add janmaaarc/basecamp

                          7GitHub starsstable
                        • 20

                          Skill
                          Active

                          Claude Code skill — delegate coding tasks to Opencode, supervise via git diff & save 50-90% Claude token usage

                          Python
                          • claude
                          • claude-skills
                          • delegation
                          • opencode
                          • orchestration

                          githubmeasured growthOpen source ↗

                          Install git clone https://github.com/pcx-wave/opencode-skill ~/.claude/skills/opencode-skill

                          17GitHub stars+1 (+6.2 %)
                        • 21

                          Agent
                          Active

                          Control plane for AI coding agents: route tasks, reduce token spend, run multi-agent workflows, fallback executors, and track cost per task.

                          PythonLicense: Apache-2.0
                          • a2a
                          • ag-ui
                          • agentic-ai
                          • ai-agents
                          • ai-coding

                          githubmeasured growthOpen source ↗

                          16GitHub starsstable
                        • 22

                          Skill
                          Active

                          mcp-recall compresses MCP tool outputs (94 KB → 3.5 KB · 96%) and stores full results in SQLite for retrieval — up to 30x more tool calls per session for heavy MCP workloads.

                          TypeScriptLicense: MIT
                          • bun
                          • claude
                          • claude-code
                          • claude-code-plugin
                          • context-window

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add sakebomb/mcp-recall

                          8GitHub starsstable
                        • 23

                          MCP
                          Dormant

                          DAG-based Lossless Context Management for Claude Code. Every message preserved, summaries cascade as a DAG, patterns extracted via Lossless Dream — full recall and reflection across sessions.

                          PythonLicense: MIT
                          • claude
                          • claude-code
                          • claude-code-plugin
                          • coding-agent
                          • context-management

                          githubmeasured growthOpen source ↗

                          15GitHub starsstable
                        • 24

                          Skill
                          Active

                          Compact Claude Code statusline — zero-dependency, crash-free on Windows

                          TypeScriptLicense: MIT
                          • claude
                          • claude-code
                          • claude-code-plugin
                          • context-window
                          • deepseek

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add WaterTian/cc-hud

                          8GitHub starsstable
                        • 25

                          Skill
                          Active

                          Staged context pruning for OpenCode, Oh My Pi, pi, and Claude Code.

                          TypeScriptLicense: AGPL-3.0
                          • ai
                          • ai-agents
                          • claude-code
                          • claude-code-plugin
                          • coding-agent

                          githubmeasured growthOpen source ↗

                          Install /plugin marketplace add AshishKumar4/better-compact

                          12GitHub stars+1 (+9.1 %)