Can you build an API for our system?

Yes. If your system is built with Laravel or another PHP framework, we can add an API to it. If the system is old or closed, but its database or export can be accessed, we build an intermediary service that makes its data available. For partners, we prepare documentation, a sandbox and separate access keys with limited permissions.

Can data get lost on its way between systems?

It shouldn't. Data is sent through a queue: if the other system is unavailable at the time, the data waits and is sent again, and after several failed attempts you get a notification. Every transfer is visible in the log, so you can check that the data matches in both systems.

What happens if both systems change the same record?

We discuss this before development starts: each field gets a primary source – for example, price from the accounting software, contact details from the CRM. If a conflict still arises, an agreed rule applies – for example, the newer change wins – and the case is logged for review.

Can our systems be connected on Make or Zapier?

Yes, if the process is simple and both systems have ready-made connectors on these platforms. It's a quick way to get started, but the monthly fee grows with the number of operations, and complex logic is harder to maintain. A custom integration is worth it when there's a lot of data, the rules are non-standard, or the data can't be passed through a third-party platform. If your team already uses Make, Zapier or n8n, we can build the connections there too.

Can AI be used in an integration?

Yes. For example, artificial intelligence (AI) can extract data from an email or a PDF invoice for the integration to pass on to your CRM or accounting software, or sort enquiries before they are assigned to an employee. For such solutions, there's our AI integration into business processes, from €990.

API integration

API integration connects two or more programs through their application programming interfaces (APIs), so data passes between them automatically, without copying by hand. Saitai.lt connects websites, CRMs, online stores, accounting and warehouse systems and third-party services (REST and SOAP APIs), and builds APIs for your partners when needed. We set the price after assessing the systems; the timeline is 2–6 weeks.

Get a quote How much does it cost?

Prepared by the Saitai.lt team · Updated 6 October 2026

In short

Price: quoted after assessment: depends on the systems, data flows and API documentation; the assessment is free; no VAT is added
Timeline: 2–6 weeks
Technologies: REST, SOAP, webhooks, JSON, XML; Laravel (PHP)
Authentication: API keys, OAuth 2.0, access tokens, IP restrictions
What we connect: websites, CRMs, online stores, accounting and warehouse systems, payment, shipping and AI services
Warranty: 12 months
Payment: 50% deposit, balance when the integration goes live
Where we work: remotely, all over Lithuania; meetings in Vilnius by appointment, arranged by phone

Who it’s for

The same data – customers, orders, products – is copied from one system to another every day.
Your systems have APIs, but there's no ready-made module to connect them, or the module doesn't fit your process.
Partners or wholesale customers want to place orders automatically from their own systems, not by email.
Website form enquiries, online store orders or call data need to reach your CRM system.
You use a third-party warehouse, logistics, e-invoicing or AI service and want to connect it to your own system.
You have an older system you don't plan to replace, but its data is needed by new applications.

When it’s not the right fit

There is a reliable ready-made module, or a connector on Make or Zapier, for linking your systems, and the process is simple. Then it's cheaper to start with that.
The system's vendor doesn't allow access to its data: there's neither an API nor an export. In that case, a reliable integration can't be built – it's worth talking to the vendor.
Data is transferred once a quarter, and there isn't much of it. Then manual export and import will cost less.

API integration process diagram: free consultation, API check and fixed price, specification, development, testing with real data, launch and monitoring, warranty and maintenance

Included

What you get

Integration specification

We set out which data travels between the systems, in which direction and how often, which events trigger a transfer, and which system is the source for each field.

Connections to third-party APIs

We build connections to REST or SOAP APIs: authentication, pagination, respecting rate limits and error handling.

Real-time webhooks

If a system sends event notifications (webhooks), data is passed on immediately after the event – for example, a payment or a status change – rather than on a schedule.

Queues and retries

Data is sent through a queue: if the other system is temporarily unavailable, nothing is lost, and the transfer is retried.

An API for your partners

If needed, we build an API for your system: partners can fetch prices and stock levels or place orders, while you manage the access keys and permissions yourself.

Documentation

For an API we build, we prepare documentation (OpenAPI) and a sandbox for partners; for an integration, a description for your team.

Log, monitoring and a 12-month warranty

Every request and error is logged, and you get a notification if something goes wrong. For 12 months, we fix integration bugs free of charge.

Price

How much does an API integration cost?

Price

On request

We price API integrations individually, after checking the systems' API documentation, the data flows and their volume. The assessment is free: within 1 working day, we'll tell you whether the integration is feasible, how much it would cost and how long it would take. If a reliable ready-made module exists for your systems, we'll suggest that simpler route as well.

Prices include all taxes – no VAT is added (we are not VAT-registered). We put the price and timeline in the contract before work starts.

Get a quote

What the price depends on

How many systems and data flows need connecting, and in which direction.
Whether the systems' APIs are well documented and whether there's a test environment.
How much data is transferred and how quickly it has to reach the other system.
Whether the data needs transforming: mapping codes, standardising formats, merging duplicates.
Whether an API needs building for your partners, with documentation and access management.
What the security requirements are: encryption, IP restrictions, an audit log.

Additional costs

A fee for using a third-party system's API or a licence, if the vendor charges one – paid directly to the vendor.
If the integration needs a separate intermediary application, it is hosted on Saitai.lt's shared servers, a virtual private server (VPS) or your own server; the price depends on the scope.
Integration maintenance after the warranty, when systems change their APIs – under a maintenance agreement, agreed separately.

Timeline

How long does an API integration take?

An API integration takes 2–6 weeks from receiving the deposit and access to the systems. A one-way transfer of one data type between two systems takes 2–3 weeks, while two-way sync across several systems, or an API for partners with documentation, takes 4–6 weeks.

Scope	Example	Timeline
One-way transfer	website enquiries into the CRM, orders into the warehouse system	2–3 weeks
Two-way sync	customers and orders between the CRM and the online store, statuses sent back	3–5 weeks
Several systems or an API for partners	CRM, accounting and warehouse; an API with documentation and access keys	4–6 weeks

Process

How it works

Free consultation1–2 working days
We find out which data is currently copied by hand, how long that takes and which systems are involved.
API check and fixed price2–4 working days
We check the API documentation, access methods, rate limits and test environment. The price and timeline go into the contract, and we start once we receive the 50% deposit.
Specification2–4 working days
We document the field mapping, events, error cases and which system is the source of each piece of data.
Development1–3 weeks
We build the connections, queues, log and notifications, and run a test version in a test environment.
Testing with real data2–4 working days
We test both normal and error cases: duplicates, an unavailable system, incorrect data.
Launch and monitoring1–2 working days
We switch the integration on and, for the first few days, check the log and whether the data matches in both systems.
Warranty and maintenance12 months
For 12 months, we fix integration bugs free of charge. If the other system's API changes, we adapt the integration under a maintenance agreement.

Comparison

A ready-made module, a connector platform or a custom API integration?

Criterion	Ready-made module	Connector platform (Make, Zapier)	Custom API integration (Saitai.lt)
Upfront cost	module licence and configuration	low, if you build the connection yourself	quoted after assessment
Monthly costs	licence renewal, if the module is paid	platform plan based on the number of operations	only hosting and maintenance, if needed
Customisation	only what the module offers	wide, but complex logic becomes hard to maintain	built around your rules and data volumes
Large data volumes	depends on the module	costs rise as operations grow	designed for large numbers of records
Where the data goes	directly between your systems	through a third-party platform	directly between your systems or via a server of your choice
Best for	a standard process, with a maintained module	simple flows and quick experiments	non-standard, high-volume or sensitive data flows

Examples

Typical projects

Manufacturer and partner orders

Situation: For example, a food manufacturer receives orders from retail chains and wholesalers by email, and sales managers re-key them into their own system.
Solution: An API is built that partners use to place orders and check their status; larger partners get documentation and a sandbox. Orders go straight into production planning.
Result: Fewer re-keying errors, faster order confirmation and a clear process for onboarding new partners.

Website, CRM and accounting in a service company

Situation: For example, an IT support company receives enquiries through its website, manages contracts in a CRM system and issues invoices in its accounting software. The same customer is entered three times.
Solution: A website enquiry becomes a CRM record, once the contract is signed the customer is passed to the accounting software, and payment statuses flow back into the CRM.
Result: Each customer entered once instead of three times, and payment visibility for sales managers without calls to the accounts team.

Online store and fulfilment centre

Situation: For example, an online store keeps its stock at a third-party fulfilment centre and sends it orders as an Excel file twice a day.
Solution: A paid order is passed straight to the fulfilment centre's system via its API, and the tracking number and status come back to the online store.
Result: Faster dispatch, tracking numbers sent to customers automatically and stock levels that match the warehouse.

Tell us your systems – we'll check their APIs for free

Tell us which systems need connecting and which data has to travel automatically. If you have them, add links to the API documentation. Within 1 working day, we'll tell you whether the integration is feasible, how much it would cost and how long it would take.

Get an estimate

FAQ

Frequently asked questions

It's an automatic conversation between two programs following pre-agreed rules. One system sends a request to the other system's API – for example, "create an order" or "what's the stock level for this product?" – and the other replies in a set format. The integration is a program that carries out these steps by itself, on a schedule or when something changes.

More

Get an API integration estimate within 1 working day

Tell us which systems need connecting and which data has to travel automatically. You can add links to the API documentation in your message. Tel. +370 670 99265.

Phone / WhatsApp / Viber:
+370 670 99265

Email:
info@saitai.lt

We reply within 1 working day. Meetings in Vilnius are by appointment only – please call first.