What if one of our systems doesn't have an API?

We can often integrate through database access, file exports, email parsing or a small connector service. We'll recommend the most reliable option after reviewing the system.

How do you keep integrations from silently breaking?

Every integration includes logging, retries, alerts and monitoring, so failures are caught and surfaced quickly instead of being discovered weeks later.

Is our data protected while it moves between systems?

Yes. Data is encrypted in transit, credentials are stored in a secrets manager, and each integration gets only the access it needs.

APIs & System Integration

API Development & System Integration

We connect the systems you already rely on, including CRM, ERP, accounting, payments, shipping and legacy databases, so data moves automatically, accurately and securely.

Discuss your project Get a ballpark estimate

Is this the right fit?

We'd rather tell you up front when custom software isn't the best answer.

A good fit when…

Staff copy data between your CRM, accounting, e-commerce or ERP systems
Nightly imports and exports keep failing without anyone noticing
Partners or customers need secure, documented access to your data
A legacy system holds data your newer apps need

Probably not the best fit when…

A low-volume flow that an off-the-shelf connector already handles reliably.
A system whose vendor contract prohibits automated access. We'll help you find an alternative.

What we build

Custom REST & GraphQL APIs

Well-designed, versioned APIs for your apps, partners and future integrations.

Third-party integrations

Connect CRMs, ERPs, accounting, e-commerce, payment and shipping platforms.

Data sync & ETL

Keep records consistent across systems with scheduled or real-time synchronization.

Webhooks & automation

Event-driven workflows that react instantly when something changes.

Legacy system connectors

Safely expose data from older databases and desktop software to modern apps.

API security & documentation

Authentication, rate limiting and clear OpenAPI documentation for your developers.

Typical projects

Every project is scoped individually. These examples show the shape and size of work we commonly take on.

CRM and accounting sync

Customers, invoices and payments kept in sync in both directions, with alerts when something fails.

Typical timeline: 4–8 weeks

Partner API

A secure, documented API with keys, rate limits and a sandbox for partner developers.

Typical timeline: 6–10 weeks

Typical budget

$17,500 – $27,000

For a medium-sized project like the examples here, about 6–8 weeks. Your numbers depend on scope, integrations and design.

Customize in the estimator

Our approach

01
Map the data first
A field-by-field map of what moves where, and which system owns each record, before any code is written.
02
Designed for failure
Retries, duplicate protection and clear error queues, so one bad record never stops the whole sync.
03
Observable by default
Every integration reports its health, so problems show up on a dashboard instead of in a customer complaint.

What you get

Integration map of systems and data flows
Versioned, documented APIs (OpenAPI)
Retries, error handling and alerting
Monitoring dashboards for every integration
A test environment with sample data
A runbook for your team

Technologies we use

Node.js
Python
.NET
GraphQL
PostgreSQL
Redis
Docker
GitHub Actions

We choose the stack that fits your needs and your team's ability to maintain it, not the other way around.

How we work

Every project follows the same transparent process, with weekly demos and a written proposal before any work begins.

01Discover
02Design
03Build
04Launch
05Evolve

See how we work

Frequently asked questions

Have a project in mind?

Tell us what you're trying to solve. We'll get back to you within one business day with honest next steps, with no obligation and no sales pressure.

Start a project hello@lakebendsoftware.com