LawPay API
LawPay is a legal payments and billing solution from AffiniPay designed to meet bar association rules and trust accounting requirements. This page is an independent design exercise that asks what a well-designed LawPay API could look like: the resources it would expose, the authentication it would need, and the workflows it could unlock. Below: a hypothetical endpoint design, the technical requirements a production implementation would face, the use cases programmatic access could serve, and where to start if your team needs this kind of access today.
This page is an independent analysis by Supergood of what a well-designed LawPay API could look like. It draws on publicly available information, vendor materials, and general integration experience in this category. Nothing on this page describes an existing LawPay product, and Supergood is not affiliated with or endorsed by the vendor. If the vendor offers an official API, we highly recommend it.
What is LawPay?
LawPay is a legal payments and billing solution from AffiniPay designed to meet bar association rules and trust accounting requirements. It powers online card and eCheck/ACH acceptance, payment pages/links, recurring schedules and payment plans, client-friendly financing (ClientCredit), and detailed reporting with separate trust and operating accounts.
Core product areas include:
- Payment Acceptance (card, ACH, payment pages/links, QR codes)
- Trust Accounting Compliance (IOLTA-safe deposits, separate ledgers, trust-to-operating transfers)
- Client Experience (email/text requests, payment plans, BNPL/ClientCredit)
- Reporting & Reconciliation (transaction details, fees, net payouts, dispute/return handling)
- Integrations (practice management, accounting like QuickBooks, and document workflows)
An API for a platform like this would naturally organize around its core data entities:
- Clients/Contacts (name, email, firm identifiers)
- Matters (client/matter number, descriptions, billing contacts)
- Accounts (trust vs. operating, bank accounts, ledger balances)
- Payment Requests (links with amount, due date, methods, matter tags)
- Transactions (charges, refunds, ACH returns, fees, status lifecycle)
- Trust Transfers (authorized movement from trust to operating for invoiced work)
- Payouts/Settlements (bank deposits with gross, fees, net, transaction breakdown)
- Payment Methods (stored cards, eCheck authorizations)
- Refunds/Chargebacks (amounts, reasons, case tracking)
- Users/Roles & Audit (permissions, who did what and when)
The LawPay Integration Challenge
Legal teams and finance ops rely on LawPay every day, but turning portal workflows into API-driven automations that respect trust accounting rules and matter-centric organization can be difficult:
- Trust/IOLTA constraints: Transfers must be authorized and tied to specific invoices and matters with a clear audit trail
- Matter alignment: Every payment needs accurate client/matter tagging for filing in iManage and downstream accounting
- Asynchronous settlement: Card batches, ACH clearing, returns/NACHA codes, and disputes arrive on different timelines
- Authentication realities: MFA and session lifecycles complicate headless access
- Data reconciliation: Mapping transactions to payouts and GL accounts while separating fees and net amounts
- Client experience options: Surcharging policies, ACH enablement, and ClientCredit/BNPL need consistent parameterization
What a LawPay API Could Look Like
If LawPay exposed a modern, general-purpose API, the integration challenges above suggest what it would need to get right. This is a design sketch, not documentation of anything that exists today:
- First-class authentication: session handling with support for MFA and enterprise sign-on where the platform uses them
- Consistent resources: normalized JSON schemas and pagination across the platform's core objects
- Reliable writes: idempotency keys and validation that mirrors the platform's own workflow rules
- Entitlement awareness: endpoints scoped to what each customer's licensing actually permits
The sections below flesh out this hypothetical design.
Need This Kind of Access Today?
If your team needs this kind of access today, Supergood builds integrations on request, one customer at a time. We act at the direction of our customers, within the access they already hold. Customers bring their own accounts, licenses, and entitlements. If the vendor offers an official API, we highly recommend it.
- Schedule an Integration Assessment
A 30-minute session to review your product mix, licensing, and authentication model. - Scope the Integration
We design the access pattern around your workflows and entitlements. - Deploy with Monitoring
Go live with continuous monitoring as your platforms evolve.
Use Cases
iManage-Centric Payments & Filing
- Generate matter-tagged payment links and embed them in iManage workspaces or engagement letters - Automatically store paid receipts, ACH authorization PDFs, and transfer memos into the correct iManage folders - Sync payment status back to iManage profile fields (e.g., Retainer Balance, Last Payment Date)
Retainers, Invoices, and Trust Compliance
- Request retainers against trust with designated matter numbers - Initiate compliant trust-to-operating transfers when invoices are approved, with itemized references - Preserve a complete authorization and audit trail per matter
Settlement & Reconciliation
- Pull daily payouts and tie them to underlying transactions and fees - Reconcile by matter, client, and bank account; export to accounting (e.g., QuickBooks) - Detect ACH returns and disputes and route them to your case/ticketing systems
Client Payments and Reminders
- Offer card/ACH/ClientCredit options via branded links - Schedule payment plans and send reminders; notify your app on success/failure - Trigger retainer replenishment when balances fall below thresholds
Connect via No-Code Tools
Automate this platform from the no-code stack you already use.
Technical Requirements
Authentication
Would require username/password with MFA (SMS, email, TOTP); supports service accounts or customer-managed credentials
Response format
JSON with consistent resource schemas and pagination across modules
Rate limits
Tuned for billing operations and reconciliation workloads while honoring entitlements and usage controls
Session management
Would need automatic reauth and cookie/session rotation with health checks
Data freshness
Near real-time retrieval of payment requests, transactions, transfers, and payouts; settlement/returns reflect network timelines
Security
Encrypted transport, scoped tokens, and audit logging; respects LawPay/firm role permissions and trust accounting constraints
Webhooks
Optional delivery for events (payment.succeeded, ach.returned, refund.processed, trust.transfer.completed, payout.paid)
Latency
Design target: sub-second responses for list/detail queries; settlement/return availability depends on card/ACH networks
Throughput
Design target: designed for bulk payment link generation and high-volume reconciliation
Reliability
Retry logic, backoff, and idempotency keys minimize duplicates and support at-least-once processing
Versioning
Clear versioning and change management would matter as LawPay evolves
Frequently asked questions
Availability of official interfaces varies by product, plan, and licensing. Many platforms in this category gate access behind partner programs or paid modules, and there is often no broadly available, self-serve public API. Check the vendor's developer resources for current offerings.
The hard parts would be authentication (MFA, session management, enterprise controls), consistent schemas across the platform's products, and write semantics that reconcile the way the platform's own workflows do.
No. This page is an independent analysis by Supergood and is not affiliated with, sponsored by, or endorsed by the vendor. All product names and trademarks belong to their respective owners and are used for identification only. Nothing here documents an actual LawPay product or service.
Supergood acts at the direction of its customers, within the access those customers already have. We respect each customer's agreements with their software vendors, and how those agreements apply to a customer's use is a determination the customer makes. If the vendor offers an official API, we highly recommend it.
Supergood builds managed API access to enterprise software for customers on request, scoped to each customer's own licensing and entitlements. If your team needs programmatic access to a platform like this, schedule an integration assessment to discuss options.