ProofRails

Today we’re opening the beta version of the ProofRails ISO 20022 Sandbox.

iso.proofrails.com

ISO 20022 is the messaging standard financial institutions use to exchange payment information. As stablecoins, onchain payments and agents start moving more money, those new rails still need to connect with the systems finance teams already use.

Our first demo shows that bridge in practice: take a ProofRails payment record and turn it into the ISO 20022 messages used for payment cancellations and investigation outcomes, with the mapping, XML and evidence trail visible end to end.

Up next: real reconciliation.

We’ll ingest ISO 20022 bank records, verify the matching onchain settlement with @FlareNetworks FDC, and use ProofRails to show whether both sides actually match in one auditable record.

10/14....⏳

The simplest way to try the full loop right now is to call ProofRails’ paid demo endpoint POST /v1/x402/premium/fx-lookup with an x402 client.

You get a 402 challenge for 0.001 USD₮0 on @FlareNetworks. The client signs the payment authorization, ProofRails settles it, and the successful response includes the API result plus the settlement tx and receipt ID.

Once the receipt is anchored, open app.proofrails.com/verify/{receipt_id} to verify the evidence against the onchain commitment.

It's time to ship again. ☀️

ProofRails is launching a Flare mainnet beta for paid APIs and AI agents.

An x402 payment can now return more than access to an API result: it can automatically produce a receipt linking the settlement to what was delivered, with finance-readable artifacts, signed evidence and a verifiable onchain commitment.

The hosted beta currently powers ProofRails’ own payment-gated APIs. API owners selling premium data or actions to software and AI agents can adopt the same workflow through a scoped integration or self-hosted deployment, accepting payments in USD₮0 while generating records that machines and humans can operate on.

Within this flow, Flare does more than record the payment. The same network also carries the public commitment to the evidence linking that payment to what was delivered.

Developers can test the x402 client flow, add this workflow to an existing API business, or start a new self-hosted service here: docs.proofrails.com/product/integr…