# Integration between two systems

> Integration between two systems at ellul.ai: £1,250, a fixed price agreed in writing before work starts, never charged by the hour. Data typed twice into two systems.

- Price: £1,250 (one-off)
- Time: 1 to 2 weeks
- Page: https://ellul.ai/services/api-integration

## What is included
- Two of your tools kept in sync
- Errors logged and alerted, never silent
- Documented so anyone can maintain it

## How many people are asking for it
1,677 posts on Reddit asked to hire someone for integration between two systems between November 2025 and November 2026, 739 of them in the last 90 days, most on r/freelance_forhire, r/forhire, r/slavelabour.

## Paid separately, at cost
- Any higher plan a tool needs before it opens its API
- Usage fees on either tool's API, where its vendor charges them

## What the buyer supplies
- Admin access or API keys for both systems
- Which records and fields should match, and which system wins on a clash

## What the price does not cover
- Two systems only; each further system is quoted
- Both tools must allow their data to be read and written through an API
- A later change a vendor makes to its API may need further work

## A cheaper way to do it
- Zapier's free plan runs two-step automations between apps, up to 100 tasks a month, checking every 15 minutes. Source: [Zapier pricing](https://zapier.com/pricing)

Get a written fixed quote: https://ellul.ai/services/api-integration#quote