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Financial Services

API analysis for banking, lending, and payments portals like FIS Profile, LawPay, and SimpleNexus. A well-designed API could pull accounts, transactions, and loan pipelines, push payments, and reconcile balances without nightly file drops.

Docs in this category

CellPoint Digital API

cellpoint

CellPoint Digital API

CellPoint Digital is a payment orchestration platform that unifies fragmented payment ecosystems for airlines, travel, hospitality, and e-commerce enterprises. This page is an independent design exercise that asks what a well-designed CellPoint Digital 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.

Alex KlarfeldJul 8, 2026
SS&C Advent API

advent

SS&C Advent API

SS&C Advent is the investment management technology unit of SS&C Technologies, providing portfolio accounting, performance measurement, trade order management, rebalancing, compliance, and reporting software to asset managers, wealth managers, hedge funds, and institutional investors. This page is an independent design exercise that asks what a well-designed SS&C Advent 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.

Alex KlarfeldJul 8, 2026
SimCorp Dimension API

simcorp

SimCorp Dimension API

SimCorp is an investment management technology provider whose Dimension platform, now delivered as part of SimCorp One, is the industry's integrated front-to-back investment management system. This page is an independent design exercise that asks what a well-designed SimCorp Dimension 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.

Alex KlarfeldJul 8, 2026
Jack Henry SilverLake API

jack

Jack Henry SilverLake API

Jack Henry is a financial technology company that provides cloud-native banking platforms to community and regional banks, credit unions, de novo banks, fintechs, and businesses. This page is an independent design exercise that asks what a well-designed Jack Henry SilverLake 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.

Alex KlarfeldJul 8, 2026
Galileo API

galileo

Galileo API

Galileo Financial Technologies (now SoFi Tech Solutions) is a cloud-native financial technology platform that helps banks, fintechs, and brands build and scale modern payment and banking products through developer-friendly APIs. This page is an independent design exercise that asks what a well-designed Galileo 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.

Alex KlarfeldJul 8, 2026
Fiserv DNA API

fiserv

Fiserv DNA API

Fiserv DNA is a real-time, open-architecture core account processing platform for banks and credit unions, organized around a person-centered data model that maps information to people and relationships rather than isolated accounts. This page is an independent design exercise that asks what a well-designed Fiserv DNA 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.

Alex KlarfeldJul 8, 2026
Ellie Mae API

elliemae

Ellie Mae API

Ellie Mae, now operating as ICE Mortgage Technology (a subsidiary of Intercontinental Exchange after its 2020 acquisition), is a mortgage software-as-a-service company that automates loan origination, processing, underwriting, and regulatory compliance for residential mortgage lenders. This page is an independent design exercise that asks what a well-designed Ellie Mae 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.

Alex KlarfeldJul 8, 2026
Mercury API

mercury

Mercury API

Mercury is a fintech platform that provides business banking, payments, and financial management tools for startups and scaling companies. This page is an independent design exercise that asks what a well-designed Mercury 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.

Alex KlarfeldJul 8, 2026
Clearent API

clearent

Clearent API

Clearent, now operating as Xplor Pay, is an embedded payments and payment-processing platform built primarily for software vendors and SaaS companies. This page is an independent design exercise that asks what a well-designed Clearent 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.

Alex KlarfeldJul 8, 2026
Temenos Transact API

temenos

Temenos Transact API

Temenos Transact (formerly T24) is the flagship real-time core banking platform from Temenos, delivering the most extensive set of banking functionality across Retail, Corporate, Treasury, Wealth, and Payments. This page is an independent design exercise that asks what a well-designed Temenos Transact 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.

Alex KlarfeldJul 8, 2026
Payanywhere API

payanywhere

Payanywhere API

Payanywhere is an all-in-one payments platform that provides business owners with free software, hardware, and low-rate card processing. This page is an independent design exercise that asks what a well-designed Payanywhere 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.

Alex KlarfeldJul 8, 2026
SimpleNexus API

simplenexus

SimpleNexus API

SimpleNexus is a digital homeownership platform, now part of the nCino Mortgage Suite, that unites the people, systems, and stages of the mortgage process into a seamless, end-to-end experience for U.S. This page is an independent design exercise that asks what a well-designed SimpleNexus 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.

Alex KlarfeldJul 8, 2026
Cartwheel API

cartwheel

Cartwheel API

Cartwheel is a purpose-built accounts receivable (AR) automation platform for staffing agencies, funding companies, and Employers of Record (EORs). This page is an independent design exercise that asks what a well-designed Cartwheel 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.

Alex KlarfeldJul 8, 2026
Commercial Banking APIs

api

Commercial Banking APIs

This page is an independent design exercise that asks what a well-designed Commercial Banking APIs 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.

Alex KlarfeldJul 8, 2026
LawPay API

lawpay

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.

Alex KlarfeldJul 8, 2026

fis

FIS Profile API

FIS Profile is a modern, real-time, multicurrency core banking system from FIS, engineered to help retail and commercial financial organizations process deposits and loans continuously with 24/7 availability. This page is an independent design exercise that asks what a well-designed FIS Profile 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.

Alex KlarfeldMay 29, 2026