date_calc
Calendar-correct date arithmetic in any IANA zone: add or subtract durations (ISO 8601 or plain English, months clamp to month end so Jan 31 + 1 month = Feb 28/29), exact difference between two dates (years / months / days breakdown plus total days / weeks / hours / seconds and ISO 8601), start /...
This record as markdown: /tools/com-it-scorptech-x402/date-calc.md
What date_calc does on ScorpTech x402 API
AI agents invoke date_calc to trigger actions in ScorpTech x402 API. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
| Parameter | Type | Required | Description |
|---|---|---|---|
n | integer | — | For nthWeekday: 1..5, or -1 for last |
op | string | — | |
to | string | — | Second date for op=diff |
tz | string | — | |
date | string | — | Base date / time (ISO 8601, epoch, or text like "2026-03-01 09:00"); default now |
unit | string | — | For startOf / endOf |
clamp | boolean | — | Clamp month / year additions to the last valid day (false = overflow like PHP / JavaScript) |
weekday | string | — | For nthWeekday |
duration | string | — | For add / subtract: P1M2D, "3 weeks 2 days", "-90 minutes" |
weekStart | string | — |
Parameters from the server's own tool schema.
Why date_calc is rated High
date_calc triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.
Risk signalsHigh parameter count (10 properties)
Attacks that exploit this kind of access
The rule that runs date_calc safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For date_calc, this is the rule to start with:
date_calc stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every date_calc call is checked against it from then on.
Questions about date_calc
Calendar-correct date arithmetic in any IANA zone: add or subtract durations (ISO 8601 or plain English, months clamp to month end so Jan 31 + 1 month = Feb 28/29), exact difference between two dates (years / months / days breakdown plus total days / weeks / hours / seconds and ISO 8601), start / end of day / week / month / quarter / year, the Nth weekday of a month ("4th Thursday of November") and age / countdown. DST-aware. Offline. Price: $0.001 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/date-calc. It is categorised as a Execute tool in the ScorpTech x402 API MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
date_calc accepts 10 parameters: n, op, to, tz, date, unit, clamp, weekday, duration, weekStart. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for date_calc: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScorpTech x402 API. Nothing to install.
date_calc is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the date_calc rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for date_calc. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
date_calc is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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