mcpcost

sh.tokenzero/mcp

TokenZero

Is the TokenZero MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-06.

Ledger of record for AI spend: verifiable receipts, waste auditor & model arbitrage MCP.

alive probed 2026-11-15 · unchanged since 2026-11-06 · HTTP 200

6tools
1.7ktokens in Claude Opus 5.5
0.8 %of Claude's 200k window
0.7×the median server
1.3 sto initialize
1.1 sto list tools
Endpoint
https://api.tokenzero.sh/mcp (streamable-http)
Host
api.tokenzero.sh
Protocol
2025-11-25
Reports itself as
tokenzero 0.3.0
Capabilities
experimental, prompts, tools
Instructions
851 characters
Of a 1M window
0.2 % of a 1M context window
Count
1.7k tokens in Claude Opus 5.5, exact, measured 2026-11-01. With the Claude Code prefix mcp__…__ on each tool name: 1.7k. The o200k_base estimate is 980. Counted again when the tool definitions change. Method.
Repository
https://github.com/tokenzero-ai/tokenzero
Website
https://tokenzero.sh
Registry
active, updated 2026-11-05 · registry entry
Changes
3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.73×.

Tool≈ Claude tokenso200k estimateShare of this server
calculate_model_arbitrage38522223 %
audit_repo_token_waste34019620 %
try_tokenzero33519320 %
optimize_prompt_payload25114515 %
workspace_metrics22513013 %

Compare this server with others, or with the servers that share its tool set.

Same tool set as 1 other server

These registry entries have the same tool names and the same schema sizes.

More servers

Servers that mention tokenzero or verifiable or arbitrage.

History

We add a row when the result changes. A server with no change keeps its last row.

ProbedResultInitToolsClaudeo200k
2026-11-01 11:17alive355 ms61.7k980
2026-10-29 10:49alive845 ms51.4k788
2026-10-26 10:16alive1.3 s51.2k647

Badge for the README

mcpcost: alive

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Atom feed

A mail when this server changes

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.

For the publisher

Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.