Programmable payments
Accept, send and settle stablecoin and machine payments inside your product, with records your finance team can use.
- Stablecoin payment flows
- x402 paid APIs
- Settlement monitoring
- Transaction records and reconciliation outputs
ProofRails Managed Services
Deploy programmable payments and agent workflows without building the infrastructure in‑house.
ProofRails designs and operates the payment, agent and interoperability layer around the systems your company already uses.
Built on the ProofRails Engine, which already records and verifies live x402 payments on Flare mainnet. Verify a live payment record
We build the infrastructure around the workflow you already have.
Most deployments combine more than one of these. We scope each one around your existing systems, your providers and who holds authority over funds.
Agent financial infrastructure
Let software agents pay for resources and services within limits your company sets, with evidence of what was authorized and what was executed.
- Agent payment flows
- Spending limits and approval steps
- Customer-controlled signing
- Authorization and execution evidence
Policy controls are built for each deployment. They are not sold as a standalone product.
Financial and blockchain interoperability
Connect onchain activity to the APIs, accounting, reporting and treasury systems that already run your operations.
- Business system APIs and webhooks
- Accounting, ERP and reporting feeds
- ISO 20022-style artifacts
- Cross-chain workflows where needed
Who we usually work with
- AI and agent companies
- Agents need to buy data, compute or API access without a person approving every payment.
- Fintech and payments companies
- Stablecoin rails need to fit an existing product without rebuilding ledgers and reporting.
- Crypto-native companies
- Onchain revenue and payouts need records that accountants, auditors and banks can work with.
Where ProofRails sits in a deployment
An example Managed Services architecture. Your systems start the action and your chosen providers hold the funds. ProofRails connects the steps and keeps the record.
Your company
ProofRails
Networks and providers
-
Your company
Customer systems
- Web application
- Backend services
- AI agents
-
ProofRails
Integration
- Receipt API
- x402 payment gate
- Webhooks and connectors
- Chain monitoring
-
ProofRails
Control and authority
- Identity context
- Policies and limits
- Approval steps
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Your company
Execution
- Customer-controlled wallet
- Smart account
- Payment provider
Customer custody
-
Networks and providers
Settlement and delivery
- Blockchain
- Paid API
- External payment rail
-
ProofRails
ProofRails Engine
- Canonical record
- Settlement and delivery evidence
- Signed bundle and anchoring
- ISO 20022-style artifacts
- Public verification
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Your company
Business output
- Accounting and ERP
- Reporting
- Customer backend
- APIs
- Request
- Business and identity context
- Authorized instruction
- Signed transaction
- Settlement and delivery evidence
- Record and artifacts
ProofRails integrates and operates the surrounding infrastructure. Customers or their chosen providers retain custody and final transaction authority.
Example: a research agent buys a $20 dataset
An AI company lets its research agents buy data from paid APIs. This is how one purchase runs and what finance receives afterwards.
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1
Request
The agent asks a paid API for a dataset.
GET /data/fx-2025
402 · 20.00 USD₮0 -
2
Policy check
The company's rules allow this agent to spend up to $50 a day.
research-agent
20 of 50 today · ok -
3
Payment
A wallet the company controls signs and pays.
EIP-3009 transfer
customer key signs -
4
Delivery
The API returns the dataset.
200 OK
sha256 4be1…09c2 -
5
Record
ProofRails links settlement, authority and delivery in one record.
record + bundle
hash anchored -
6
Finance
Finance receives a structured entry with vendor, amount and linked evidence.
journal entry
camt.054 export
Example deployment architecture. Not presented as an existing customer case study.
Managed deployments run on infrastructure ProofRails already operates.
The ProofRails Engine turns a settlement into a record that finance can use and anyone can verify. It runs today as a hosted API, and its source is public on GitHub.
A real x402 payment on Flare mainnet, 29 July 2026. Download the bundle, hash it with SHA-256 and compare the result with the anchored value.
- Settlement reference 0x5e48…6340 USD₮0 transfer, Flare mainnet
- Canonical record dec5a106…f4d7 payment, parties, reference, delivered resource
- Evidence bundle 0xe700…d4c1 signed manifest, delivery record and file hashes
- Financial artifacts pain001.xml ISO 20022-style payment initiation, inside the bundle
- Verification anchored bundle hash committed on Flare
Hosted Receipt API
Projects, API keys and artifact storage at app.proofrails.com.
Live x402 payments
USD₮0 on Flare mainnet through x402 V2, tested with the official x402 client packages.
Signed evidence bundles
Record, manifest, file hashes, signature and public key in one portable file.
Anchoring on Flare
Bundle hashes are committed to the EvidenceAnchor contract.
Public verification
Anyone can recompute a bundle hash and check the commitment without an API key.
Public source
Run the Engine yourself. The repository includes TypeScript and Python clients.
Managed ServicesWhat customers buy: design, integration and operation of a deployment.
ProofRails EngineRecords, evidence, artifacts and verification. Running today.
ProofRails PlatformReusable components may follow from repeated deployments. Not available today.
Anchoring proves that a bundle existed in its committed form at a point in time. It does not prove that the source data was true. ProofRails produces ISO 20022-style artifacts and does not claim ISO certification or regulatory compliance.
The team
Company and full profiles-
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-
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Marek Z
Advisor
Senior Solutions Architect at BNP Paribas. Advises on system architecture and DLT integration in banking and payments.
Work with ProofRails
We're a small team working across programmable payments, AI agents and financial infrastructure.
Request a deployment review
Describe the workflow you want to run and the systems involved. We review each request and reply by email.
- Understandthe workflow, systems, authority boundaries and the records your teams need.
- Designan architecture from the ProofRails Engine and suitable external infrastructure.
- Deploy and integratewith the applications, providers and business systems already in place.
- Operateand improve the deployment where you want us to.
Prefer email? contact@proofrails.com
Thanks. We'll review the workflow and get back to you.
A copy of your request went to our team at contact@proofrails.com.