MCP Cost Calculator

Estimate your monthly bill from MCP tool calls — by server, by model, with real provider pricing. No signup. No email.

Quick start

Which MCP servers do you use?

4h
20

Estimated monthly bill

$255

~3,600 tool calls / month · 80h active agent time · Claude Sonnet 4.6

Cost breakdown by server

Filesystem$146 · 57%

2,400 calls · 0.72M in · 9.60M out

Fetch / Read-URL$58.03 · 23%

480 calls · 0.14M in · 3.84M out

GitHub$36.60 · 14%

400 calls · 0.20M in · 2.40M out

Brave / Web Search$14.69 · 6%

320 calls · 0.10M in · 0.96M out

Insight

Filesystem is 57% of your estimated spend. That's where optimization pays off most.

Want exact per-call numbers, not estimates?

Track your real spend — free →

25K calls/month free · no card · open-source proxy

Where do the numbers come from?

Per-server averages (input / output tokens per call) are computed from anonymized, aggregated MCPSpend telemetry across hundreds of real users. Model pricing is the public list price from each provider, refreshed monthly.

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Install the proxy and you'll see your own per-call cost within 30 seconds — free 25K calls/month, no card required. Start free →