{"uid":"cap_XUuaGDqeJjH-o0G4a1PbD","slug":"us-aba-routing-number-checksum-validator-c1bf8c2c","name":"US ABA Routing Number Checksum Validator","description":"Pay-per-call tools for AI agents: web search + content, documents, live market data, and multi-chain wallet/gas reads. Mainnet test from $0.000001 USDC on Base. Pay-per-call tools for AI agents in USDC on Base (x402/MPP): search, pdf, web-read, extract, summarize, fact-check, translate, jobs, discover. See GET /capabilities.","url":"https://x402.agentindex.world/validate/routing?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","title":"RoutingInput","required":["routing_number"],"properties":{"routing_number":{"type":"string","title":"Routing Number","pattern":"^[0-9]{9}$"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"RoutingOutput","required":["valid"],"properties":{"valid":{"type":"boolean","title":"Valid"}}}}}}},"responseSchema":{"type":"json","example":{"valid":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1i__HXWTojjF3cfzvaIow","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a 9-digit US ABA bank routing number using checksum verification","exampleAgentPrompt":"Can you check whether the routing number 021000021 is a valid US ABA routing number — does it pass the checksum?","exampleUseCases":[{"title":"Pre-transfer routing number check","prompt":"Before I initiate this ACH payment, can you validate that routing number 122105155 is a legitimate US bank routing number?"},{"title":"User-submitted bank form validation","prompt":"A customer just entered 026009593 as their bank routing number in our payment form — can you verify it passes the ABA checksum before we process it?"},{"title":"Data cleanup for payroll records","prompt":"I have the routing number 111000025 in our payroll system and I'm not sure if it was entered correctly — can you run a checksum validation on it?"}],"resultDescription":"A validation result indicating whether the 9-digit ABA routing number passes the standard checksum algorithm, confirming if the number is structurally valid as a US bank routing number.","failureModes":["Non-9-digit input returns a pattern validation error","Non-numeric characters cause rejection","Missing routing_number parameter returns a 400 or schema error","A structurally valid checksum does not guarantee the routing number is actively assigned to a bank — only that it is well-formed"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap checksum-level validation of a US ABA routing number before processing payments, storing bank details, or accepting user input — particularly in ACH, wire transfer, or payroll contexts. Prefer this over full bank lookup services when you only need structural validity and cost is a concern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:44:02.695Z","isFirstParty":false,"canonicalSlug":"us-aba-routing-number-checksum-validator-c1bf8c2c"}