filesystemdraft data · stage 0
Local file access: read, write, search files and directories. · modelcontextprotocol/servers
free
Key / pricing
No key needed
Free tier
Unlimited, local, works offline
Paid entry
-
Schema token overhead
3 360
14 tools · PriceRadar measurement 2026-07-12
Connection cost · API billing · 3,000 req/mo · no cache
| Haiku 4.5 | Sonnet 5 | Opus 4.8 | |
|---|---|---|---|
| schemas 3,360 · no cache | $10.1 | $20.2 | $50.4 |
Verdict. The zero-stack baseline: no key, $0 tariff, offline. The only cost is context - the schema token tax on your model (and it doubled since PolicyLayer's 1,642 measurement: the server grew to 14 tools).
proof: PriceRadar tools/list measurement (o200k_base) (2026-07-12)
Machine access
These passports as JSON - for agents and scripts.
/mcp-servers/api.json · CC BY 4.0