Calculator
Rank #9,567io.github.slettmayer/calc-mcp-server
Exact arithmetic: one calculator tool over an AST allowlist, with integers exact at any size.
Calculator is a Model Context Protocol (MCP) server published by slettmayer. It ranks #9,567 of 115,591 servers tracked on MCP Toplist. Calculator is listed across 2 registries — Official MCP and Glama, with 5 tracked versions. It was first listed on Jul 30, 2026 and most recently updated on Aug 28, 2026.
Ranks ahead of 106,024 of 115,591 servers on MCP Toplist.
Use Calculator
No credentials or required configuration declared — add it to your MCP client and go.
claude mcp add calc-mcp-server -- uvx calc-mcp-server[mcp_servers.calc-mcp-server]
command = "uvx"
args = ["calc-mcp-server"]Add to ~/.codex/config.toml.
{
"mcpServers": {
"calc-mcp-server": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config).
{
"mcpServers": {
"calc-mcp-server": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
{
"servers": {
"calc-mcp-server": {
"type": "stdio",
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Save as .vscode/mcp.json in your workspace.
{
"mcpServers": {
"calc-mcp-server": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
{
"mcpServers": {
"calc-mcp-server": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.slettmayer%2Fcalc-mcp-server)<a href="https://mcptoplist.com/server/io.github.slettmayer%2Fcalc-mcp-server"><img src="https://mcptoplist.com/badge/io.github.slettmayer%2Fcalc-mcp-server.svg" alt="MCP Toplist: Top 10% of 115,591" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 2 registries
slettmayer
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Available versions (5)
| Version | Published |
|---|---|
| 0.1.7 | Aug 28, 2026 |
| 0.1.5 | Aug 22, 2026 |
| 0.1.4 | Aug 14, 2026 |
| 0.1.3 | Aug 8, 2026 |
| 0.1.2 | Jul 30, 2026 |
Frequently asked questions
- Who maintains Calculator?
- Calculator is maintained by slettmayer, which publishes 4 MCP servers (18 total versions) tracked on MCP Toplist.
- Is Calculator listed on the Official MCP Registry?
- Yes — Calculator is listed on the Official MCP Registry, alongside Glama.
- How many versions does Calculator have?
- MCP Toplist tracks 5 versions of Calculator, most recently published on Aug 28, 2026.
- Where can I find the source code for Calculator?
- The source code for Calculator is hosted at github.com/slettmayer/calc-mcp-server.