API Development and Third-Party Integrations

Connect your product to the tools your customers already use — fast and reliable.

Payment Integrations

Stripe, Paddle, and custom billing flows with webhook handling, invoice generation, and subscription management. Tested for edge cases — not just the happy path.

CRM and Marketing

HubSpot, Salesforce, SendGrid, and marketing automation connectors. Sync contacts, track events, and automate workflows without manual import/export.

Custom APIs

REST and GraphQL API design, documentation (OpenAPI/Swagger), rate limiting, authentication, and implementation. Built for developers who will consume your API.

Pricing

Transparent pricing for every stage.

Single

$2,000

One REST API, basic sync, 1 week.

  • •REST or GraphQL integration
  • •Error handling
  • •Data mapping
  • •Basic monitoring

Pair

$5,000

Two APIs, two-way sync, webhooks, error handling.

  • •Everything in Single
  • •Two-way data sync
  • •Webhook handling
  • •Retry logic
  • •Integration tests

Multi

$10,000

3-5 APIs, data transformation, monitoring.

  • •Everything in Pair
  • •Data transformation pipeline
  • •Rate limiting
  • •Monitoring dashboards
  • •Runbook documentation

Complex

$25,000+

Custom middleware, real-time streaming, SLA.

  • •Everything in Multi
  • •Custom middleware
  • •Real-time streaming (WebSocket/SSE)
  • •SLA with alerting
  • •Load testing

Connect Your Stack

Tell us what you need to integrate and we will give you a fixed-price quote.