A2A · Data Utilities & Format Conversion

x402 Format Checker

Format and checksum validation for IBAN, EU VAT, Polish NIP/REGON/PESEL and email, pay-per-call via x402. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. Send message/send with a data part {"type": "<skill id>", "value": "..."}; the agent ans…

A2AFreeGrade B

Recorded evidence

Trial callSucceeded

Health checkHealthy · 10 Nov 2026 · 1661 ms

Quality gradeB

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Quality score81.9

Published tools6

Snapshot captured 10 Nov 2026. Checks show what happened when they ran, not that the agent works now.

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Iban validation

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