ToolVet
80trust / 100

Availability Resolve

by buero.halowerk.com in Productivity & SaaS

x402 APIPassing, checked 33 min ago

Give it a search window, a meeting length, and for each participant a list of busy blocks — start and end, nothing else — and it returns the windows in which the meeting fits. Each participant carries their own IANA timezone and working hours, so nine-to-five means nine-to-five where they are, across daylight saving changes, and a meeting is only offered when it lies entirely inside one working-hours block for everyone counted as present.

POST https://buero.halowerk.com/v1/availability-resolve

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
134 ms typical, 226 ms slowest 5%
Last check
33 min ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://buero.halowerk.com/v1/availability-resolve" \
  -H "content-type: application/json" \
  -d '{"duration_minutes":60,"output_timezone":"Europe/Berlin","participants":[{"busy":[{"end":"2026-08-17T10:00:00Z","start":"2026-08-17T08:00:00Z"}],"id":"a","timezone":"Europe/Berlin"},{"busy":[],"id":"b","timezone":"America/New_York"}],"window":{"end":"2026-08-19T00:00:00Z","start":"2026-08-17T00:00:00Z"},"working_hours":{"end":"17:00","start":"09:00"}}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fbuero.halowerk.com%2Fv1%2Favailability-resolve
const res = await pay("https://buero.halowerk.com/v1/availability-resolve", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"duration_minutes":60,"output_timezone":"Europe/Berlin","participants":[{"busy":[{"end":"2026-08-17T10:00:00Z","start":"2026-08-17T08:00:00Z"}],"id":"a","timezone":"Europe/Berlin"},{"busy":[],"id":"b","timezone":"America/New_York"}],"window":{"end":"2026-08-19T00:00:00Z","start":"2026-08-17T00:00:00Z"},"working_hours":{"end":"17:00","start":"09:00"}}),
});
console.log(await res.json());

Example input

{
  "duration_minutes": 60,
  "output_timezone": "Europe/Berlin",
  "participants": [
    {
      "busy": [
        {
          "end": "2026-08-17T10:00:00Z",
          "start": "2026-08-17T08:00:00Z"
        }
      ],
      "id": "a",
      "timezone": "Europe/Berlin"
    },
    {
      "busy": [],
      "id": "b",
      "timezone": "America/New_York"
    }
  ],
  "window": {
    "end": "2026-08-19T00:00:00Z",
    "start": "2026-08-17T00:00:00Z"
  },
  "working_hours": {
    "end": "17:00",
    "start": "09:00"
  }
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

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20 h agoPassed402113 ms$0.002