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The problem#

Banks reject malformed payment files. Every rejection costs a repair cycle; a repair that misses the day's cut-off costs a settlement day. The rejection reasons are knowable in advance — and therefore preventable.

The deadline#

14 November 2026, enforced at network level: cross-border payments (CBPR+) carrying fully unstructured addresses are rejected, and the legacy interbank MT101 channel retires in favour of ISO 20022 pain.001 version 9. The exposure sits in customer master data. Sources: SWIFT, cited in full at pain001.com/2026-iso20022-migration-trends.

What Pain001 does#

An open-source suite that converts existing data — spreadsheets, ERP exports, legacy SWIFT files — into bank-ready ISO 20022 payment files, and proves each file against the bank's official rulebook (ISO 20022 XSD) before submission. It runs entirely on your own infrastructure: no upload, no vendor cloud, no telemetry.

What it costs#

Nothing, at any scale, under open licences (Apache-2.0 / MIT). Commercial reference point: SWIFT's translation SDK is publicly listed at €10,000–30,000 per year.

The evidence#

Published dependency inventory (SBOM) · 100% branch-covered code as a CI gate · independently scored supply chain (OpenSSF Scorecard) · WCAG 2.2 AAA accessible documentation · security policy with private disclosure. All verifiable at pain001.com.

The ask#

Have your payments engineering team run the 60-second demo at pain001.com/try — it validates a sample batch and proves it against the official ISO 20022 schema, in the browser, with nothing uploaded. If it holds up, the installation guide takes minutes.