# Bizday (isitabizday.com)

Counts, adds and rolls business days over federal office, Fed bank, NYSE and SIFMA holiday calendars through a web API.

- Atlas card: https://inite.ai/en/atlas/isitabizday.com
- Site: https://isitabizday.com
- Categories: finance
- Use 0/100 · alive 100/100

## Used for

- Count business days between two US dates
- Roll a deadline past federal office closures
- Check whether a holiday falls on a business day

## Price

- from 9 USD/one-time, no free plan (read 2026-10-28 on https://isitabizday.com/#pricing)

## For developers

- OpenAPI: https://isitabizday.com/openapi.json (14 paths)
- MCP server: com.isitabizday/bizday (namespace; open on 2026-10-28, 8 tools)
- MCP server: com.isitabizday/hotel-fact-graph (namespace; open on 2026-10-28, 3 tools)
- Read 2026-10-28

## MCP server, measured daily

Server: https://isitabizday.com/mcp, checked every day since 2026-10-28 (6 checks).

- Answered: measuring, 6 daily checks so far
- Median first answer: 505 ms
- Sign-in: none
- Context its tool definitions take: about 2572 tokens (8 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-28

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Source: INITE Atlas, https://inite.ai/en/atlas/isitabizday.com. JSON: https://inite.ai/api/atlas/isitabizday.com. MCP: https://inite.ai/api/mcp (atlas_lookup).