calc-eval — Currency RUB MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Currency RUB
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call calc-eval from your client
- Claude Code Currency RUB calc-eval run in your project directory
- Claude Desktop Currency RUB calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Currency RUB calc-eval ~/.cursor/mcp.json
- VS Code Currency RUB calc-eval .vscode/mcp.json
- Zed Currency RUB calc-eval ~/.config/zed/settings.json
- Windsurf Currency RUB calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Currency RUB calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Currency RUB calc-eval ~/.gemini/settings.json
- Grok Currency RUB calc-eval .mcp.json (in your project root)
- ChatGPT Currency RUB calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Currency RUB calc-eval Settings → Connectors → Add custom connector
- LangChain Currency RUB calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http fx-rub https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/fx-rub/mcp
Other tools on this server
- fx-rub
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- compatibility
- status-catalog
- iana-zones
- web-fetch
- fetch-status
- github-repo-shape
- weather-hint
- memory-key-count
- file-path-ok
- browser-url-ok
- think-steps
- search-query-len
- hn-front-count
- lib-docs-hint
- playwright-url-ok
- figma-url-shape
- jira-key-shape
- geo-hint
- wiki-title-ok
- agent-tool-index
- people-search-index
- agent-ads-index
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.