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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96 entries in this view.

Tool ranking

Ranked by normalized popularity 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

    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
  2. 2

    CLI
    Active

    Usage-aware status line for Claude Code: session & weekly rate-limit gauges with reset countdowns and a precise context-window meter, plus tokens, git & weather. Template-driven and extensible — set it up by chatting with Claude or via a…

    Python
    • ccusage-alternative
    • claude-code
    • claude-code-skills
    • claude-code-statusline
    • context-window

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  3. 3

    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
    • 4

      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
      • 5

        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
        • 6

          Skill
          Dormant

          Agent context gate for Codex, Claude Code, Copilot, MCP, Cursor, Cline, Gemini and Windsurf repos

          TypeScript
          • agent-readiness
          • ai-security
          • claude-agents
          • claude-code
          • cli

          githubmeasured growthOpen source ↗

          Install git clone https://github.com/grnbtqdbyx-create/contextforge ~/.claude/skills/contextforge

          1GitHub starsstable
        • 7

          Skill
          Active

          A skill that shrink noisy log/output 60-90% before read — filter, group, dedupe, truncate. Cut token, cut cost, keep signal. By Dhayalan (aka Joy).

          PythonLicense: MIT
          • claude
          • claude-ai
          • claude-code
          • claude-code-plugin
          • claude-code-skill

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add Da-ya7/PromptCompressor-skill

          1GitHub starsstable
        • 8

          MCP
          Active

          Context optimization for LLM agents: tool registry, result masking, budgeting, compaction.

          RustLicense: NOASSERTION

            mcpmeasured growthOpen source ↗

            Install claude mcp add distil -- npx @munhq/distil

            1GitHub starsstable
          • 9

            Skill
            Active

            Cut Claude Code token costs by delegating bulk LLM work to cheap models. 600+ models via NanoGPT, OpenRouter, Groq or local Ollama — batched, resumable, with real per-call cost tracking.

            PythonLicense: MIT
            • ai-agents
            • batch-processing
            • cheap-llm
            • claude-code
            • claude-code-agents

            githubmeasured growthOpen source ↗

            Install /plugin marketplace add bicced/sidequest

            1GitHub starsstable
          • 10

            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
            • 11

              Skill
              Dormant

              Drop-in Cursor rules to cut AI response tokens (no filler/hedging, preserve code + technical strings). Includes local, reproducible benchmarks.

              JavaScriptLicense: MIT
              • benchmarking
              • bonsai
              • cursor
              • cursor-rules
              • developer-tools

              githubmeasured growthOpen source ↗

              Install git clone https://github.com/marcomondelli/bonsai ~/.claude/skills/bonsai

              0GitHub starsstable
            • 12

              MCP
              Active

              Context GC for LLM agents: offload large tool outputs and recall them to save tokens.

              PythonLicense: Unlicense

                mcpmeasured growthOpen source ↗

                Install claude mcp add lethe -- uvx lethe-llm-context

                0GitHub starsstable
              • 13

                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
                • 14

                  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
                  • 15

                    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

                    Learning resources

                    Ranked by normalized popularity across sources. These resources remain available separately and do not take part in the main tool ranking.

                    1. 1

                      SUMMARY-md

                      Skill
                      ActiveOpen source ↗

                      A cheat sheet that stops AI agents from scanning your whole repo and saves you tokens.

                      License: CC0-1.0
                      • agent-context
                      • agent-tools
                      • ai-agents
                      • ai-coding
                      • claude-code
                      github

                      Install git clone https://github.com/toshon-jennings/SUMMARY-md ~/.claude/skills/SUMMARY-md

                      Resourcemeasured growth
                      0GitHub starsstable

                    Listed without a public metric

                    Ranked by normalized popularity 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
                      UnknownLast commit: unavailable

                      Semantic context compression and cognitive memory layer for LLM swarms.

                      mcpmetric not publishedOpen source ↗

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

                      —No public metric provided
                    2. 2

                      MCP
                      UnknownLast commit: unavailable

                      MCP server for Skim code transformation. Compresses code 60-95% for LLM context optimization.

                      mcpmetric not publishedOpen source ↗

                      Install claude mcp add skim-mcp-server -- npx skim-mcp-server

                      —No public metric provided
                    3. 3

                      MCP
                      UnknownLast commit: unavailable

                      Cut LLM token costs: count tokens, estimate cost, slim prompts, and pick the cheapest capable model.

                      mcpmetric not publishedOpen source ↗

                      Install claude mcp add mcp-token-optimizer -- npx mcp-token-optimizer

                      —No public metric provided
                    4. 4

                      MCP
                      UnknownLast commit: unavailable

                      LLM caching proxy (x402 USDC on Base) - exact + semantic cache. Free health.

                      mcpmetric not publishedOpen source ↗

                      Remote server, to be declared in the MCP configuration https://cache.api.ainode.tech/mcp

                      —No public metric provided
                    5. 5

                      MCP
                      UnknownLast commit: unavailable

                      Pre-injection context compression for coding agents. Zero LLM calls, zero telemetry, offline-safe.

                      mcpmetric not publishedOpen source ↗

                      —No public metric provided