io.github.abrudtkuhl/faxonline
FaxOnline
Prepare and track US PDF faxes with user-approved checkout. No account or subscription.
alive probed 2026-10-09 · HTTP 200
2tools
549tokens in Claude Opus 5.5
567tokens in Claude Code
0.3 %of a 200k context window
309o200k_base estimate
1.5 sto initialize
1.3 sto list tools
- Endpoint
- https://faxonline.app/mcp/fax (streamable-http)
- Host
- faxonline.app
- Protocol
- 2025-11-25
- Reports itself as
- FaxOnline 1.0.0
- Capabilities
- prompts, resources, tools
- Instructions
- 592 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-09. Counted again when the tool definitions change. Method.
- Website
- https://faxonline.app/fax-for-ai-agents
- Registry
- active, updated 2026-10-09 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| prepare_fax | 230 | 74 % |
| get_fax_status | 79 | 26 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.abrudtkuhl/faxonline)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.