White Label API Integration Services for Agencies
Your agency manages the client. We help connect the systems their business depends on.
Your client has a website, CRM, ecommerce store or business application, but the systems don't communicate the way they need to.
Maybe enquiries from the website aren't reaching the CRM. Customer information needs to move between two platforms. An online store needs to connect with an inventory system. Or a custom application needs data from a third-party service.
These requirements often involve more than installing a plugin or connecting a few settings.
White Label Agency provides API integration and custom development support for web development agencies, digital agencies, software companies and technology consultancies.
We help agencies connect websites, CRMs, ecommerce platforms, payment systems and business applications through agreed API integrations and custom development work.
Whether you need one integration or support with a larger project involving several systems, our team can review the technical requirements.
Your agency continues managing the client relationship. We handle the agreed integration and development tasks behind the scenes.
Outsource API Integration Projects Without Expanding Your Internal Team
Many agencies are comfortable building websites, designing interfaces or managing marketing campaigns.
But client requirements can become more technical when different systems need to exchange information.
A website might need to create leads automatically in a CRM. A booking platform might need to send appointment details to another application. An ecommerce store may need to exchange inventory information with an external system.
Some integrations can be handled through existing connectors. Others require custom API development, authentication, data mapping, error handling and testing.
We work with agencies that need additional technical support for these requirements.
Our team can review the available APIs, existing systems and intended workflows before discussing the implementation.
Connect Existing Business Systems
Integrate websites, applications and business platforms so they can exchange agreed information.
Build Custom API Integrations
Develop integration functionality where standard plugins or connectors do not meet the requirements.
Support Existing Client Projects
Work on integration tasks within websites, ecommerce stores and applications your agency already manages.
Keep Your Client Relationships
Your agency remains responsible for client communication and commercial arrangements.
Project-Based Technical Delivery
Discuss an individual integration or a larger set of connected workflows.
API Integration Services Your Agency Can Outsource
CRM API Integration
Connect client websites and applications with customer relationship management systems.
Many businesses use CRMs to manage leads, customers, sales activity and follow-up processes.
If your agency builds websites or applications for these businesses, CRM integration may be part of the project.
We can review requirements involving:
- Website form submissions to CRM records
- Lead creation and updates
- Contact synchronisation
- Customer data mapping
- CRM API authentication
- Sales pipeline-related data transfers
- Custom CRM integration workflows
- Existing integration troubleshooting
Examples of CRM platforms include HubSpot, Salesforce and Zoho CRM.
Support for a particular platform depends on its available APIs, account permissions and the agreed technical scope.
Discuss a CRM IntegrationEcommerce API Integration
Connect ecommerce stores with the systems used to manage business operations.
Online stores may need to communicate with inventory, fulfilment, accounting or customer management systems.
We can discuss integrations involving:
- Shopify API integrations
- WooCommerce REST API integrations
- Product data synchronisation
- Inventory updates
- Order data transfers
- Customer information synchronisation
- Shipping and fulfilment services
- Third-party ecommerce applications
- Custom storefront integrations
The technical approach depends on the source and destination systems, supported API capabilities and data requirements.
Explore White Label Ecommerce DevelopmentPayment Gateway Integration
Implement payment functionality within websites and applications.
Some client projects require integration with a payment provider or changes to existing payment workflows.
We can review requirements involving:
- Payment provider API integration
- Hosted checkout implementation
- Payment status handling
- Payment-related webhooks
- Subscription payment workflows
- Transaction status updates
- Payment-related application functionality
- Existing payment integration troubleshooting
Payment integrations must follow the relevant provider's technical requirements and applicable security obligations.
Where possible, sensitive card information should be handled by compliant payment providers rather than stored directly in custom applications.
Website and Web Application API Integration
Connect websites and custom applications to external services.
We can help agencies review integration requirements for:
- WordPress websites
- Shopify stores
- Custom business websites
- React and Next.js applications
- SaaS applications
- Customer portals
- Internal business dashboards
- Custom web applications
The work may involve consuming external APIs, developing backend functionality or creating a connection between two existing systems.
Explore White Label Web DevelopmentThird-Party Software Integration
Connect business applications that need to exchange data.
Some client workflows depend on several systems working together.
Examples include:
- CRM and email platforms
- Websites and booking systems
- Ecommerce and inventory platforms
- Applications and accounting software
- Customer portals and business databases
- Forms and external management systems
- Internal tools and third-party applications
We review the available APIs and integration requirements before discussing what can be implemented.
Custom API Development
Build API functionality for websites, applications and business systems.
Sometimes an agency's client needs a custom API rather than an integration with an existing service.
We can discuss development involving:
- REST API development
- Custom API endpoints
- Authentication and authorisation
- Database-connected API functionality
- Data validation
- Webhook implementation
- API documentation
- Backend integration logic
- Existing API improvements
The implementation depends on the application architecture and technical requirements.
Explore White Label Backend DevelopmentAPI Integrations for Different Agency Client Projects
Website Lead Management
A client wants contact form submissions from their website to appear automatically in a CRM. The integration may need to map form fields, create or update records and handle errors.
Ecommerce Inventory Synchronisation
An online store needs inventory information from another business system. The integration may need to retrieve stock levels, update product availability and handle changes between systems.
Booking and Appointment Workflows
A client needs booking information to appear in another application or internal system. The project may involve transferring appointment details, updating records or processing booking events.
Customer Portals
A web application needs to retrieve customer information from an existing business platform. The integration may involve authenticated API requests and controlled access to relevant data.
Custom Business Dashboards
A client wants to view information from several systems in one dashboard. The project may involve API connections, data processing and frontend development.
Marketing and Sales Workflows
A digital marketing agency needs website enquiries or campaign-related data to move into a client's existing sales systems. The work may involve forms, CRM integration, tracking requirements or custom workflows.
These examples illustrate potential project types. The actual implementation depends on the systems, permissions and technical limitations involved.
How Our API Integration Process Works
Share the Integration Requirements
Tell us which systems need to connect and what the integration should achieve. It helps to understand the source platform, destination platform and information that needs to move between them.
Review the Available APIs
We review the relevant API documentation, authentication requirements and technical capabilities. If an API does not support the required functionality, we'll discuss the limitation and possible alternatives.
Define the Data and Workflow
We establish what information needs to be transferred, when the transfer should happen and how the receiving system should process it. This may include field mapping, triggers, data validation and error handling.
Agree on the Scope
We discuss the required development work, deliverables, responsibilities, testing requirements and commercial terms.
Develop the Integration
Our developers implement the agreed integration functionality. The work may involve API requests, authentication, backend development, webhooks or custom data processing.
Test the Integration
Testing should cover the agreed workflows, expected responses, error scenarios and relevant data handling requirements.
Handover and Documentation
We provide the agreed technical deliverables and handover information. If ongoing monitoring or maintenance is required, that should be discussed separately.
Important Technical Considerations for API Integration
An API integration needs to work reliably with the systems involved.
The development approach should consider the technical requirements and limitations of each platform.
Authentication and Permissions
APIs may use OAuth, API keys, tokens or other authentication methods. Access should be limited to the permissions needed for the integration.
Data Mapping
Different systems may use different field names, formats and data structures. The integration needs to handle the agreed mapping between them.
Rate Limits
Some APIs restrict the number of requests that can be made within a given period. The integration should account for relevant limits.
Error Handling
API requests can fail because of network problems, invalid data, expired credentials or unavailable services. The agreed solution should account for relevant failure scenarios.
Webhooks and Event Processing
Some integrations use webhooks to respond to events such as new orders, completed payments or updated records. These workflows may require validation and safeguards against duplicate processing.
Security and Privacy
Integrations involving customer or business data should use appropriate access controls, secure communication and data handling practices.
API Changes
Third-party providers may update their APIs or change available features. Future compatibility and ongoing support requirements should be discussed as part of the engagement.
White Label API Integration for Different Agency Types
Web Development Agencies
Your agency builds websites but needs additional backend or integration expertise for a client project. We can review the required API connections and development tasks.
Digital Marketing Agencies
Your agency manages marketing websites, lead generation and client campaigns but needs help connecting forms, CRMs or other business systems.
Ecommerce Agencies
Your agency works with Shopify or WooCommerce stores and needs integrations involving inventory, fulfilment, customer information or other business platforms.
Software Development Agencies
Your team develops applications but needs additional technical capacity for API development or integration tasks.
Creative and Design Agencies
Your agency designs digital experiences but needs developers to connect the finished website or application with external systems.
Project-Based API Integration and Ongoing Technical Support
Different integration projects require different working arrangements.
Individual API Integration Projects
Suitable when your agency needs to connect two systems or implement a defined workflow. The scope should identify the systems, required data, expected behaviour and testing requirements.
Multiple Integrations Within a Larger Project
Suitable when a website or application needs several external connections. We can review the integrations together and discuss their dependencies.
Existing Integration Improvements
Suitable when an integration already exists but requires changes, troubleshooting or additional functionality. We may need to review the existing implementation before confirming the work.
Ongoing Development Requirements
If your agency regularly needs API development or integration support, we can discuss an ongoing arrangement based on the expected workload.
White Label API Integration Pricing
API integration costs depend on the systems involved and the complexity of the required functionality.
A simple data transfer between two platforms may have a different scope from an integration requiring custom authentication, bidirectional synchronisation or complex business logic.
What Affects the Quotation?
- Number of systems involved
- API availability and documentation
- Authentication requirements
- Data structures and field mapping
- One-way or two-way data synchronisation
- Real-time or scheduled processing
- Custom backend development
- Error handling and logging requirements
- Security and privacy requirements
- Testing requirements
- Existing codebase condition
- Project timeline
Third-party API subscriptions, usage charges and software licensing costs should be identified separately unless included in the agreed scope.
We review the requirements before discussing a quotation.
What We Need to Review Your API Integration Project
To help us assess the technical requirements, share the following information where available.
Your Agency Website
Tell us about your agency and the client project you're managing.
Systems to Connect
Identify the platforms, websites or applications involved.
Required Workflow
Explain what should happen when information moves between the systems.
Data Requirements
Describe the type of information that needs to be transferred.
API Documentation
If relevant API documentation is publicly available, share the links.
Existing Implementation
If the integration already exists, explain what needs to be changed or fixed.
Timeline
Let us know when the work needs to begin and whether there are important deadlines.
Do not include API keys, passwords or other sensitive credentials in the initial enquiry form. We can discuss secure access arrangements after reviewing the project.
White Label Delivery and Client Confidentiality
We understand that agencies may need to share technical information about their clients' websites, applications and business systems.
Our white label approach is intended to support your agency's delivery responsibilities.
Your Agency Manages the Client
Your agency remains responsible for client communication and commercial arrangements.
Technical Scope Is Agreed
We discuss the integration requirements, responsibilities and deliverables before development begins.
Confidentiality
We can review relevant confidentiality requirements and agreements before sensitive project information is shared.
Secure Access
API credentials, administrative access and technical permissions should be handled through an agreed secure process.
Handover
Code, documentation, access and ownership terms should be defined in the project agreement.
Frequently Asked Questions
Can we outsource API integration projects for our agency's clients?
Do you provide white label API development?
Can you connect a website to a CRM?
Can you integrate Shopify with other business systems?
Do you support WooCommerce API integrations?
Can you integrate payment gateways?
Can you work with an existing application?
Do you provide custom REST API development?
Can you build integrations using webhooks?
How much does API integration cost?
Can we sign an NDA?
Will you communicate directly with our clients?
Can you provide ongoing API integration support?
How do we get started?
Need an API Integration Partner for Your Agency?
If your agency has a client project that requires API integration, CRM connectivity, ecommerce synchronisation or custom backend development, we can review the requirements.
Whether you're connecting two existing platforms or building integration functionality for a custom application, our team can discuss the technical work.
Tell us which systems need to connect, what information needs to move between them and what the integration should achieve.