io.github.mrfentmen/base58-mcp
base58-mcp
Is the io.github.mrfentmen/base58-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.
Encode and decode base58 and base58check offline, with version bytes and checksums
alive probed 2026-11-14 · unchanged since 2026-10-29
- Run it
- npx -y @mrfentmen/base58-mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- base58-mcp 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 520 tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 553. The o200k_base estimate is 301. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/mrfentmen/awesome-servers
- Registry
- active, updated 2026-10-28 · registry entry
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 tokens | o200k estimate | Share of this server |
|---|---|---|---|
| base58_encode | 270 | 156 | 52 % |
| base58_decode | 161 | 93 | 31 % |
| base58_alphabet_info | 90 | 52 | 17 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.mrfentmen/bandcamp-mcp · alive
- io.github.mrfentmen/bankofcanada-mcp · alive
- io.github.mrfentmen/barcode-mcp · alive
- io.github.mrfentmen/bart-mcp · alive
- io.github.mrfentmen/baserow-mcp · alive
- io.github.mrfentmen/basic-mcp · alive
- io.github.mrfentmen/batchfile-mcp · alive
- io.github.mrfentmen/baywheels-mcp · alive
Servers that mention base58.
- Base58 charset, input discarded io.github.sadri-dridi/b58-ok · alive
- Base58 alphabet check, input discarded io.github.sadri-dridi/base58-ok · alive
- CIDv0 base58btc Qm, value discarded io.github.sadri-dridi/cid-base58 · alive
- content-id base58 length, value discarded io.github.sadri-dridi/contentid-b58 · alive
- UUID Base58 shape, value discarded io.github.sadri-dridi/uuid-b58 · alive
- io.github.mrfentmen/btc-address-mcp · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
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
- The server answers initialize and tools/list. Nothing to fix.