Calculator is answering right now. Last checked 9 min ago. It exposes 10 tools.
Calculators accessible via MCP with real-time collaborative sessions and shareable URLs.
Calculator missed one check this week
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.
claude mcp add calculator --transport http https://mcpcalc.com/api/v1/mcphttps://mcpcalc.com/api/v1/mcp[mcp_servers.calculator]
url = "https://mcpcalc.com/api/v1/mcp"{
"mcpServers": {
"calculator": {
"url": "https://mcpcalc.com/api/v1/mcp"
}
}
}{
"servers": {
"calculator": {
"type": "http",
"url": "https://mcpcalc.com/api/v1/mcp"
}
}
}Available tools 10
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
calculate
calculate_cas
calculate_cas_headless
create_session
get_session_state
get_calculator_schema
list_calculators
close_session
generate_prefilled_url
push_session_action
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcpcalc.com/api/v1/mcp | streamable-http | answering | 673 ms | 9 min ago |
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Calculator — questions
Answers built from our own checks of this server.