Connecting two tools when one has no API
Short answer
No API doesn't mean no integration. In rough order of reliability the options are: scheduled file exports/imports, emailed data or webhooks parsed automatically, a shared database, or — as a last resort — software that operates the tool's screens the way a person would (RPA). Which fits depends on how often the data moves, how costly a late hand-off is, and how sensitive the data is. If you've already tried a no-code connector like Zapier and your tool simply isn't supported, this is the path.
First, confirm there really is no "door"
An API is just a defined way for other software to talk to a tool without a human clicking. Before assuming a tool has none, check for the side doors: a scheduled export, an option to email out data, webhooks, or an integration marketplace. Many tools that "have no API" actually offer one of these — which is a much sturdier foundation than the last-resort option below.
The ladder of options, most reliable first
- 1.Scheduled file transfer: the tool exports a file (CSV, etc.) on a schedule and another system imports it. Not glamorous, but rock-solid for once-a-day or hourly hand-offs.
- 2.Email or webhook parsing: the tool emails out its data or fires a webhook, and that's read and processed automatically. Great when data should move the moment something happens.
- 3.Shared database: if both tools read/write the same database, they can be connected at that layer. Powerful, but only available for certain systems.
- 4.Screen automation (RPA): software operates the tool's own interface the way a person would — clicking, typing, copying. The most flexible and the most fragile, so it must be monitored; use it only when nothing above is possible.
Why the order matters
Each rung down is more capable but more brittle. A good build reaches for the highest, most reliable rung the tools actually support — not the flashiest one. Anyone who leads with RPA before checking for an export is skipping the sturdy options.
How to choose between them
Three questions decide it: How often does the data need to move — once a day, or the instant something changes? How bad is it if a hand-off is late or missed — mildly annoying, or a lost customer? And how sensitive is the data? High frequency, high cost-of-delay, and sensitive data all push you toward the sturdier, monitored options and away from fragile screen automation.
What this is NOT
This is not "replace both tools with one big platform." That's the advice you'll get from vendors who sell the big platform. Keeping the tools your team already knows and adding a small, reliable bridge between them is almost always cheaper, faster, and lower-risk than ripping everything out.
- Tool has no APIbut check the side doors
- Scheduled export?sturdiest option
- Email / webhook?event-driven
- Shared database?if available
- Screen automationlast resort, monitored
Work down only as far as you must. The first rung the tools support is usually the right one — and every rung can be monitored so failures alert a person.
Making the call
Accept the manual step (for now) when…
- The data moves rarely and timing doesn't matter.
- A missed hand-off costs you almost nothing.
- Volume is tiny — a person does it in seconds.
Build the bridge when…
- The hand-off happens often, or timing is critical.
- A late or missed transfer costs money or trust.
- The data is sensitive and needs controlled handling.
- A person is spending real time as the connection.
Questions people ask
I tried Zapier and my app wasn't supported — now what?
That's exactly the situation this covers. A no-code connector like Zapier only works with tools on its list; when yours isn't there, you drop to the options here — a scheduled export, emailed data or webhooks, a shared database, or screen automation as a last resort. Our companion guide on connecting systems without Zapier covers the earlier, no-code path; start there if you haven't tried it, and come back here when it runs out.
What is RPA / screen automation?
RPA (robotic process automation) is software that uses a tool's normal screens the way a person would — logging in, clicking, typing, copying data out. It can connect almost anything, which is why it's tempting, but it's the most fragile option: if the tool's screens change, it can break. That's why it's the last rung on the ladder and why it needs monitoring so a failure alerts someone instead of silently stopping.
Is connecting a tool without an API expensive?
It's usually far cheaper than the alternative of replacing the tool, and far cheaper over time than paying a person to move the data by hand. The cost depends mostly on which rung of the ladder the tools support — a scheduled file transfer is simple, screen automation takes more care to keep reliable. A good partner picks the sturdiest option your tools allow, not the most complex one.
Related reading
Not sure which of these applies to you?
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Written by Artifex Labs · Last reviewed August 14, 2026