Task

Bank Routing Checksum

1 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

ABA routing check x402 REST usage

Validate a 9-digit US ABA bank routing number by its weighted (3,7,1) mod-10 checksum. Spaces and hyphens are ignored.

checkdigit.openverbs.com Other services 2 calls / 30d checked 2026-10-26

0.002 USDC per call per call

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