TokenZero

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Computer or cloud
• Transport: stdio, Streamable HTTP
• Category: Accounting, finance & tax
• You need to fill in: TOKENZERO_KEY

Install

Pick the AI app you use, then copy the settings.

You need

• Runs in the cloudNothing to install; it connects over the internet
• npmNode.js installed (for the npx command)

Which app do you use?

https://api.tokenzero.sh/mcp

{
  "mcpServers": {
    "tokenzero": {
      "command": "npx",
      "args": [
        "-y",
        "@tokenzero/mcp"
      ],
      "env": {
        "TOKENZERO_URL": "your-value",
        "TOKENZERO_KEY": "your-value"
      }
    }
  }
}

claude mcp add --transport http tokenzero https://api.tokenzero.sh/mcp

claude mcp add tokenzero --env TOKENZERO_URL=your-value --env TOKENZERO_KEY=your-value -- npx -y @tokenzero/mcp

{
  "mcpServers": {
    "tokenzero": {
      "url": "https://api.tokenzero.sh/mcp"
    }
  }
}

{
  "mcpServers": {
    "tokenzero": {
      "command": "npx",
      "args": [
        "-y",
        "@tokenzero/mcp"
      ],
      "env": {
        "TOKENZERO_URL": "your-value",
        "TOKENZERO_KEY": "your-value"
      }
    }
  }
}

{
  "servers": {
    "tokenzero": {
      "type": "http",
      "url": "https://api.tokenzero.sh/mcp"
    }
  }
}

{
  "servers": {
    "tokenzero": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@tokenzero/mcp"
      ],
      "env": {
        "TOKENZERO_URL": "your-value",
        "TOKENZERO_KEY": "your-value"
      }
    }
  }
}

https://api.tokenzero.sh/mcp

Your choice stays on this device in a cookie; no account needed.

Values you fill in

• TOKENZERO_URL env
  Gateway base URL (default https://tokenzero.sh)
• TOKENZERO_KEY secret env
  Workspace key (tz_live_…) for workspace_metrics; optional

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

• try_tokenzero

  Call this first: no API key, no signup, no setup. Shows what TokenZero would do to one of your LLM calls: it runs the four savings engines (prompt-cache formatting, edge cache, cascade advice, signed receipt) on a sample or your own prompt and model, and returns the list-price sa

• audit_repo_token_waste

  No API key needed. Static-analyze a public GitHub repo (e.g. {"repo": "owner/name"}) or a set of source files for LLM token waste: uncached static prompts, frontier models on extraction tasks, hot loops, non-deterministic repeat calls, and prompt-caching mis-integration (caching

• optimize_prompt_payload

  No API key needed. Rewrite an OpenAI Chat/Responses or Anthropic Messages request body so its static prefix is provider-cacheable (Anthropic cache_control breakpoints, OpenAI prompt_cache_key). Returns the optimized body, what changed, the token profile and the projected per-requ

• calculate_model_arbitrage

  No API key needed; only `model` is required (e.g. {"model": "gpt-6.1-sol"}, defaults 2,000 tokens in and 400 out). Price a workload at list prices across models: cost per request and per month for the requested model, its cheaper sibling, and the effect of prompt caching. The res

• provision_workspace

  Create a TokenZero workspace and key with no form. Returns the key once, the base URLs that route through it (OPENAI_BASE_URL / ANTHROPIC_BASE_URL), the one-click dashboard link and the badge URL. Free up to the monthly free tier; nothing is billed.

• workspace_metrics

  Live value scorecard for a TokenZero workspace: hard savings and net ROI per window, the four engines' contribution, speed, parity, availability and privacy posture, per-model breakdown and one-click recommendations. Needs the workspace key (tz_live_…); pass demo: true for a labe

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified against the domain tokenzero.sh (the registry checks domain ownership)

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 1471 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 6 tool descriptions and found no hidden instructions to the AI

Compared with others in Accounting, finance & taxi

• More stars than 0% of the other 1720 servers in this category
• Published to the registry more recently than 96% of the other 1720 servers in this category
• Basic checks equal to or better than 100% of the other 1720 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

npx -y @tokenzero/cli audit            # local, nothing is uploaded

# .github/workflows/tokenzero.yml

claude mcp add tokenzero -- npx -y @tokenzero/mcp          # Claude Code

{ "mcpServers": { "tokenzero": { "command": "npx", "args": ["-y", "@tokenzero/mcp"] } } }

npx -y @tokenzero/cli init

npm install