API Integration Services & Support
API Integration Services & Support
Built in integrations missing key data or logic? Or perhaps the software connection you need simply doesn't exist? We build secure, custom API connections for businesses that have outgrown 'off-the-shelf' limitations.
Built in integrations missing key data or logic? Or perhaps the software connection you need simply doesn't exist? We build secure, custom API connections for businesses that have outgrown 'off-the-shelf' limitations.
We've helped more than 975 customers worldwide
Struggling to build reliable and efficient API integrations?
Maybe you've tried various endpoints and tools, but regardless of the amount of ChatGPTing you've done - you keep hitting errors. Maybe your processes are more complex than you first thought, and surface-level guidance just can't get you there.
Your software stack is niche or custom, and it’s not listed in the 'App Store' of your other tools. You're stuck manually exporting CSVs.
We read the documentation and build the bridge ourselves using raw API endpoints (REST, SOAP, GraphQL).
The native integration exists, but it only syncs names and emails, missing the custom fields, invoices, or metadata you actually run your business on.
We bypass the shallow native connectors to fetch all the data endpoints available in the API.
Support told you that feature is 'coming soon,' but you need your systems to talk to each other today.
Don't wait for software vendors. We build your custom workflow now, independent of their slow development cycles.

We Speak 'API'
So You Don't Have To
flowmondo goes beyond just API integration development. We’re your go-to API integration services partner, combining technical precision with a deep understanding of how you operate.
REST, SOAP, GraphQL, Webhooks, or even direct SQL. If your software has documentation (and even if it doesn't), we can usually find a way to get data in or out.
Custom integrations require careful handling of API keys and OAuth tokens. We build with security best practices to ensure your data tunnel is encrypted and safe.




We don’t just deliver and then disappear. flowmondo stays involved with hands-on API support and optimisation to keep your systems running smoothly as your needs evolve.
flowmondo connects the unconnected
When native integrations fail and "off-the-shelf" connectors fall short, we architect secure, custom API solutions for businesses who need their data to flow without barriers, regardless of the software involved.
Pioneering custom API integration with deep knowledge of business logic.
Extensive experience designing and refining API integrations to deliver reliable solutions.
Businesses stay with us because our custom integrations are built to last.
The achievement that makes us most proud is our happy customers.
It's easy to get started
From discovery call to implementation in days, not months.
Book a call
It all starts with a quick and friendly conversation.
Speak with API experts
On the call you'll speak with one of our certified API experts who will analyse your challenges and craft an API integration plan.
It's go time
Deploy your API integration solution with hands-on guidance and ongoing support to ensure smooth adoption and measurable results for your team.
We’ve connected everything from legacy ERPs to modern SaaS
From CRMs to ERPs, spreadsheets to support systems, we help you integrate the tools you rely on to keep your business operations flowing seamlessly.
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Your go-to API integration experts
Whether you need to streamline data, power up AI, or automate complex, multi-step workflows, our expertise goes beyond a single integration. We use your tools' APIs to craft a seamlessly integrated stack that's in perfect harmony with your business logic.

Unify Your Software
Sync your software to eliminate silos and boost productivity. Seamless integrations deliver real-time data flow, streamlined workflows, and scalable solutions, freeing you from manual workarounds and enhancing decision-making.

Banish Busywork
Automate repetitive tasks to save time and reduce errors. Scalable workflows across all of your tools, streamlining operations and empowering your team to focus on high-value work with effortless efficiency.

Harness AI Power
Embed AI into your workflows for sharper decisions and exponential output. Systematic AI integration delivers consistent, scalable results, enhancing productivity whilst centralising governance and optimisation efforts.

Master your data
Centralise, clean and enrich your data to fuel your people, automations and AI agent force. Scalable data strategies ensure secure, real-time access, integrating with your systems to drive smarter decisions and operational clarity.

Build custom apps faster
Create custom tools without coding, replacing spreadsheets with scalable apps. Rapid, flexible and scalable solutions integrate with your tech stack, streamline processes and accelerating productivity with ease.
Streamline Your Docs
Automate document creation and extraction. Generate custom docs and extract data from scans, cutting admin time, boosting accuracy, and integrating doc flows with your systems for seamless output.

Streamline Your Docs
Automate document creation and extraction. Generate custom docs and extract data from scans, cutting admin time, boosting accuracy, and integrating doc flows with your systems for seamless output.
Services for your whole API integration journey
We don’t just connect a few apps and hope it works. From the first conversation to a fully optimised setup, we tailor every step to match your tools, workflows, and goals. It’s clean, reliable, and built to deliver real value without unnecessary complexity.
Frequently asked questions
Everything you need to know about custom APIs.

Still have questions?
Not a problem, our team of experienced API experts are at hand to answer any questions you might have.
Yes, and this is why clients love our approach. Because we host the logic inside a visual builder (like Make or n8n or Zapier), you retain visibility. While the "connection" might be complex code, the logic (e.g., "If Invoice > $500, send Slack message") remains visual. You can tweak the business logic without needing to touch the complex code that powers the integration.
While documentation makes things faster, it isn't always mandatory. We can often reverse-engineer how your web-based software talks to its own database (via browser network inspection) to find the endpoints we need. If that fails, we can explore alternative routes like direct database connections (SQL), email parsing, browser agents, SFTP-based integration routes.
Security is paramount. We never hard-code credentials into text fields. We utilise encrypted environment variables and secure connection layers (OAuth2 where available) to ensure your keys are stored securely. We adhere to the principle of "least privilege," only requesting the specific API scopes required to perform the task - nothing more. Get in touch to discuss our security practices any time, we're happy to help.
It is an investment, but it is often significantly cheaper than building a full custom software application. Instead of rebuilding your entire tech stack to find tools that talk to each other, we simply build a "translator" between the tools you already love. This extends the life of your current software and avoids the massive cost of an ERP migration.
Yes. We specialise in "hybrid" architecture. Using secure gateway agents (like the Make On-Premise agent or SQL gateways), we can securely tunnel data from a local server in your office to your cloud apps (like CRMs or Dashboards) without exposing your entire network to the public internet.
APIs do evolve, and endpoints can be deprecated (no longer supported). This is why we don't just "build and run." We offer ongoing monitoring and maintenance packages. If a software provider changes their API structure, our error handlers alert us immediately, and we can update the connector to match the new requirements, ensuring your business continuity isn't disrupted.
Our unique approach leverages the "Custom App" or "HTTP" capabilities within platforms like Make and n8n. This means we can write the complex authentication and data transformation code inside a managed environment. You get the power of custom development without the headache of managing servers, uptime, or security patches for a standalone script.
almost certainly, yes. If your software allows for data export or has an API (Application Programming Interface), we can connect it. Whether it uses REST, SOAP, GraphQL, or simple webhooks, we build the "bridge" that the major automation platforms haven't built yet. Even if your software is obscure or custom-built, as long as there is a way to get data in or out, we can automate it.
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