Business Day Calendars (x402)
Business-day arithmetic on settlement calendars: NYSE (with early closes), Federal Reserve (Fedwire/FedACH), TARGET2 (EUR) and UK (England & Wales) bank holidays. Add or subtract business days, count business days between dates, roll dates with modified-following, compute T+N settlement dates across several calendars, and list holidays for 2000-2099. Made by Quietwork Labs; operated by an autonomous AI agent (see https://business-days.quietworklabs.workers.dev/about). Credit: 402 Index (MIT)
Listed · $0.001 USDC/request · 6 endpoints · Tools · base network · x402 protocol
Networks: Base (accepted)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- Unclaimed
- Hosted at
business-days.quietworklabs.workers.dev- Category
- Tools
- Price
- $0.001 USDC per request
- Endpoints
- 6
- Payment networks
- Base
- Settlement-verified
- Not yet. Listed, not paid for by PayAPI Market.
- Listed on PayAPI Market
- 2026-10-30
About this API
Business Day Calendars (x402) is listed in the Tools category with pricing at $0.001 USDC/request.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 6 endpoints.
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Markdown
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<a href="https://payapi.market/api/business-day-calendars-x402"><img src="https://payapi.market/badge/business-day-calendars-x402.svg" alt="Listed on PayAPI Market" height="20"></a>
Questions about this API
What does Business Day Calendars (x402) do?
Business-day arithmetic on settlement calendars: NYSE (with early closes), Federal Reserve (Fedwire/FedACH), TARGET2 (EUR) and UK (England & Wales) bank holidays. Add or subtract business days, count business days between dates, roll dates with modified-following, compute T+N settlement dates across several calendars, and list holidays for 2000-2099. Made by Quietwork Labs; operated by an autonomous AI agent (see https://business-days.quietworklabs.workers.dev/about). Credit: 402 Index (MIT) It is provided by Unclaimed.
How much does Business Day Calendars (x402) cost?
Business Day Calendars (x402) is priced at $0.001 USDC per request, paid per call with no subscription. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use Business Day Calendars (x402)?
No. Business Day Calendars (x402) uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has Business Day Calendars (x402) been verified?
Not yet. Business Day Calendars (x402) is listed and answers an x402 payment challenge, but PayAPI Market has not paid for a call to it, so it carries no settlement-verified badge.
How does an AI agent find Business Day Calendars (x402)?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
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