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.

Use case

Activity

Sort by

43 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

      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 %)
    • 3

      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 %)
    • 4

      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
    • 5

      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
      • 6

        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
      • 7

        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
      • 8

        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
      • 9

        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
      • 10

        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 %)
      • 11

        Skill
        Active

        Governance framework for AI coding agents. It runs them through a five-step workflow (plan, build, review, test, ship) where no step counts as done without evidence. Drop-in rules and guardrails for Claude Code, Codex, Cursor, Copilot, and…

        PythonLicense: MIT
        • agent-framework
        • agent-orchestration
        • agentic-development
        • agents-md
        • ai-agent

        githubmeasured growthOpen source ↗

        Install git clone https://github.com/KbWen/agentic-os ~/.claude/skills/agentic-os

        155GitHub stars+8 (+5.4 %)
      • 12

        MCP
        Active

        Persistent memory + security layer for Claude Code (MCP plugin). Agents remember your project across sessions (~87% fewer context tokens), every tool call lands in a tamper-evident HMAC audit chain, and skills are AST-scanned +…

        TypeScriptLicense: MIT
        • agent-security
        • ai-agent-memory
        • ai-agents
        • audit-trail
        • claude-code

        githubmeasured growthOpen source ↗

        8GitHub starsstable
      • 13

        Skill
        Active

        对标 claude-hud 核心功能，控制在 7 行以内更轻量。内置 13 个国产大模型平台用量查询 (智谱 GLM / MiniMax / DeepSeek / Kimi / StepFun / SiliconFlow 等)，第三方代理用户也能实时看到额度消耗。

        TypeScriptLicense: MIT
        • anthropic
        • claude
        • claude-code
        • claude-code-plugin
        • cli

        githubmeasured growthOpen source ↗

        Install /plugin marketplace add zander-zyx/claude-mini-hud

        9GitHub starsstable
      • 14

        Skill
        Active

        Lossless context compression plugin for Claude Code & OpenCode.

        TypeScriptLicense: BSD-3-Clause
        • anthropic
        • chatgpt
        • claude
        • claude-code
        • claude-code-plugin

        githubmeasured growthOpen source ↗

        Install /plugin marketplace add aerovato/magic-compact

        146GitHub stars+1 (+0.69 %)
      • 15

        Skill
        Active

        Content-aware output compression for AI coding assistants. 36 specialized processors cut CLI output tokens by 60-99% (git, pytest, npm, terraform, kubectl, docker, and more) without losing errors, diffs, or stack traces.

        PythonLicense: Apache-2.0
        • agentic-ai
        • ai-coding-assistant
        • claude-code
        • claude-code-plugin
        • cli-tools

        githubmeasured growthOpen source ↗

        Install /plugin marketplace add ppgranger/token-saver

        142GitHub stars+2 (+1.4 %)
      • 16

        MCP
        Active

        Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

        TypeScript

          mcpmeasured growthOpen source ↗

          Remote server, to be declared in the MCP configuration https://mcplint-web.vercel.app/api/mcp

          0GitHub starsstable
        • 17

          MCP
          Active

          Verifies token/cost savings claimed by AI context-reduction proxies via MCP tools.

          TypeScriptLicense: Apache-2.0

            mcpmeasured growthOpen source ↗

            Install claude mcp add tokentrust -- uvx tokentrust-cli

            0GitHub starsstable
          • 18

            Other
            Active

            Find the ghost tokens. Fix them. Survive compaction. Avoid context quality decay.

            Python
            • agentskills
            • claude-code
            • claude-code-skill
            • claude-plugin
            • context-engineering

            githubmeasured growthOpen source ↗

            2 122GitHub stars+108 (+5.4 %)
          • 19

            Skill
            Active

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

            Shell
            • claude
            • claude-ai
            • claude-ai-skills
            • claude-code
            • claude-skill

            githubmeasured growthOpen source ↗

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

            117GitHub starsstable
          • 20

            MCP
            Active

            Tinder for your Claude Code skills, subagents and MCP servers. Swipe away what wastes context, scan for prompt injection, get honest token costs. Fixes what it finds and actually deletes. Zero dependencies, Claude Code + Codex.

            ShellLicense: MIT
            • agent-skills
            • ai-agents
            • claude
            • claude-code
            • claude-code-marketplace

            githubmeasured growthOpen source ↗

            115GitHub stars+1 (+0.88 %)
          • 21

            Skill
            Active

            Claude Code plugin that tracks token usage, identifies wasted context, and saves 30-50% on API costs. Heatmaps, ROI reports, budget alerts, efficiency scores, git-aware suggestions — all local, zero config.

            JavaScriptLicense: MIT
            • ai-tools
            • anthropic
            • claude-code
            • claude-code-plugin
            • cli-plugin

            githubmeasured growthOpen source ↗

            Install /plugin marketplace add egorfedorov/claude-context-optimizer

            103GitHub stars+6 (+6.2 %)
          • 22

            Skill
            Active

            Agent Dashboard: Visualization and analytics for Sessions and Quota Usage. Track, analyze, and optimize token usage across providers with heatmaps, cost tracking, token counting and quota resets..

            PythonLicense: MIT
            • agent
            • analytics
            • anthropic
            • claude-code
            • claude-code-plugin

            githubmeasured growthOpen source ↗

            Install /plugin marketplace add JingbiaoMei/Tokdash

            67GitHub stars+3 (+4.7 %)
          • 23

            CLI
            Active

            Measure and shrink the token cost of Claude Code skills, tier by tier: the always-on system-prompt tax, the per-invocation body, and on-demand references, each priced at the rate it is actually billed.

            PythonLicense: MIT
            • claude
            • claude-code
            • claude-code-skills
            • cli
            • cost-optimization

            githubmeasured growthOpen source ↗

            1GitHub starsstable
          • 24

            MCP
            Active

            Context compression plugin for Claude Code. Automatically trims large tool output—JSON, YAML, stack traces, and logs—before it enters the context window.

            TypeScriptLicense: MIT
            • claude-code
            • claude-code-plugin
            • context-compression
            • context-window
            • developer-tooling

            githubmeasured growthOpen source ↗

            64GitHub starsstable
          • 25

            MCP
            Active

            Cut context bloat in your AI-agent stack: find and safely prune unused skills, MCP servers and subagents from real transcript evidence

            GoLicense: MIT
            • agent-skills
            • ai-agents
            • anthropic
            • claude-code
            • claude-code-plugin

            githubmeasured growthOpen source ↗

            55GitHub stars+1 (+1.9 %)