Observed arrival · 2026-11-01
PayOps Kit: eight checks, one implementation
A collection of payment-operations checks for routing numbers, IBANs, banking days, ACH dates, payment codes and financial identifiers.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Payment-operations teams and AI agents
- Worth noticing
- The site says its browser tools, REST API and MCP tools use the same TypeScript implementation.
Field notes
The routing-number checker describes the ABA 3-7-1 checksum and supports checking a pasted list. The IBAN tool covers Mod-97 check digits and BBAN structure, while the business-day calculator names Fed, TARGET2 and UK calendars and offers a calendar-file download. The homepage also lists viewers for NACHA, X9.37, BAI2 and ISO 20022 files.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue