Third-Party API Integration
Connect to the APIs
Your Business Depends On
Vendor platforms, partner feeds, external data sources, SaaS tools — your business depends on third-party services. We build the integrations that connect them to your internal systems reliably.
Talk About Your IntegrationThe Problem
Third-Party APIs Are Critical — and Complex
Your business relies on services you don't control. Payment processors, shipping carriers, vendor platforms, partner data feeds. Each has its own API, its own authentication, its own quirks, and its own update schedule.
Connecting to one third-party API is a project. Connecting to several — and keeping them all running as vendors change things — is an ongoing job. Rate limits, authentication token expiry, schema changes, and deprecation notices pile up.
We handle the connection layer. Your systems talk to third-party APIs through integrations we build and maintain, so your team can focus on the business instead of debugging API calls.
Common third-party integration challenges:
What We Connect
Third-Party APIs We Integrate
We connect your internal systems to external APIs across a range of categories.
Payment & Billing APIs
Stripe, Square, PayPal, billing platforms. Connect payment events to your CRM, accounting, and fulfillment systems.
Shipping & Logistics APIs
Carrier APIs, tracking services, fulfillment platforms. Automate shipping label creation, tracking updates, and delivery notifications.
SaaS Platform APIs
Connect your subscribed SaaS tools to your internal systems. Pull data out of platforms that trap it, push data in from your other tools.
Partner & Vendor APIs
Connect to partner data feeds, vendor inventory systems, supplier portals, and distributor platforms. Keep your data in sync with your business partners.
Data Enrichment APIs
Pull in external data to enrich your records — company information, contact details, address verification, industry data, and public records.
Communication APIs
Twilio, SendGrid, messaging platforms. Integrate SMS, email, and voice into your workflows — triggered by events in your other systems.
What We Handle
The Hard Parts of Third-Party API Integration
Connecting to an API you don't control comes with challenges you won't find in internal integrations.
Authentication & security
- OAuth 2.0 flows with automatic token refresh
- API key rotation and secure credential storage
- Webhook signature verification
- IP whitelisting and mutual TLS when required
Reliability & resilience
- Rate limit management with request queuing
- Automatic retries with exponential backoff
- Dead letter queues for failed requests
- Graceful degradation when a vendor API is down
The Process
How a Third-Party API Integration Project Works
API Assessment
We review the third-party API documentation, test sandbox environments, and evaluate authentication requirements, rate limits, and data formats.
Integration Design
We map out data flows, define error handling strategies, and plan for rate limits and vendor-specific constraints. Fixed price proposal.
Build & Test
We build the integration with full error handling, test against the live API, validate data flows, and deploy to our managed infrastructure.
Managed Service
We monitor the integration, track vendor API changes, and update your connection when the third-party API evolves.
The Big Picture
How It All Connects
FAQ
Common Questions About Third-Party API Integration
What counts as a third-party API?
Any API you don't own — vendor platforms, partner data feeds, SaaS tools, payment processors, government APIs, and external data sources.
Can you handle strict authentication requirements?
Yes. OAuth 2.0, API key rotation, mutual TLS, IP whitelisting, and custom auth schemes. We implement whatever the vendor requires.
What about rate limits and API quotas?
We build integrations that respect rate limits, queue requests, batch operations, and alert when you're approaching thresholds. No data lost to throttling.
Do you handle API versioning?
Yes. We monitor vendor changelogs, test against new versions, and update your integrations before breaking changes take effect.
Can you handle vendor approval processes?
We handle the technical side — sandbox integrations, certification tests, and meeting technical requirements. You handle the commercial relationship.
Third-party API integration is part of our broader API integration services.
View all API Integration Services →What Third-Party API Needs Connecting?
Tell us what external services your business depends on. We'll assess the APIs and outline what's possible.
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