# FiatDock US Federal Business-Day Calendar

> FiatDock US Federal Business-Day Calendar is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).

Returns US federal business-day calendar data, indicating whether specific dates are business days and providing holiday and working-day information for date ranges.

## Facts

- Endpoint: GET https://fiatdock.com/s/svc_b799f98d-63dd-4674-bc0b-a83e1eaadccd?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fiatdock-us-federal-business-day-calendar-465f1dda
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BPiWrnyJAyBXdbapkmdIJ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fiatdock-us-federal-business-day-calendar-465f1dda
```

Example prompt: Is March 15, 2025 a US federal business day, and can you show me all the business days in March 2025?

## When to prefer this

Use this endpoint when you need authoritative US federal business-day data on a pay-per-call basis without maintaining your own calendar database. Ideal for scheduling agents, financial workflow automation, SLA calculation, or any task requiring real-time verification of US working days and federal holidays. Prefer over static holiday libraries when you need up-to-date, maintained federal calendar data without a subscription.

## Known failure modes

- Invalid date format returns an error
- End date before start date may return empty or error response
- Unsupported timezone string causes parameter rejection
- Missing required method or type fields in input returns schema validation error
- Payment failure (402) if USDC balance insufficient

## How this service works

Pay-per-call: US federal business-day calendar

## Output

Returns calendar data indicating whether queried dates are US federal business days, listing any federal holidays, and (for ranges) enumerating working days between the start and end dates. Supports optional timezone parameter for localized interpretation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "tz": {
       "type": "string"
      },
      "end": {
       "type": "string"
      },
      "date": {
       "type": "string"
      },
      "start": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiatdock-us-federal-business-day-calendar-465f1dda/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fiatdock.com](https://www.zero.xyz/host/fiatdock.com/llms.txt)