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Home/Services/Custom Software & APIs

Custom Software & APIs specialists

AI Agency Index matches UK businesses with vetted custom software & apis specialists. Post one brief and get quotes, free, with no obligation to hire.

Looking for custom software & apis help? AI Agency Index connects UK businesses with vetted custom software & apis specialists, from independent experts to established agencies. Post one short brief describing your project, budget and timescale, and matched specialists can respond with quotes and questions. It's free to post and there's no obligation to hire.

Whether you're starting from scratch or improving something you already have, you can compare specialists by their profiles, experience and reviews before deciding who to speak to. Your contact details stay private until you choose to share them.

Get free quotesAll services

Specialists for Custom Software & APIs projects

Custom Internal API & Systems IntegrationSave ~50%
Custom Internal API & Systems Integration
  • Discovery of the systems you run (CRM, accounting, inventory, ecommerce, bespoke tools) and where data gets stuck
  • Custom API layer and integrations that pass data between your systems automatically
  • Two way sync rules with conflict handling so records stay consistent everywhere
£6,000 to £7,000£3,200

Typically 18 to 30 working days

Spreadsheet to Web App MigrationSave ~50%
Spreadsheet to Web App Migration
  • Review of your existing Excel, Google Sheets or Access workbook and the formulas and workflows inside it
  • Custom web application that replicates your current process with proper validation and no broken formulas
  • Multi user access so your whole team works from one live source instead of emailed copies
£3,400 to £3,900£1,800

Typically 10 to 21 working days

Custom Software & APIs: questions, answered

How much does custom software & apis cost?+

It depends on scope. Smaller pieces of work can start in the low hundreds, while larger custom projects run into the thousands. Post a brief to get specific quotes from specialists for your custom software & apis project.

How do I get quotes for custom software & apis?+

Post a short brief with your requirements, budget and timescale. Matched specialists can then respond with quotes, it's free and there's no obligation to hire anyone.

Can I work with a specialist remotely?+

Yes. Many specialists work remotely with businesses across the UK, and you can also look for those who cover your local area.

Are the specialists vetted?+

Specialists apply and are reviewed before their profile goes live in the directory, so you're matched with genuine providers.

Related services

SoftwareCRMAppsSaaSReady Made WebsitesAI ProductsGrowth, SEO & SupportAI Business Tools
Internal Back Office Admin DashboardSave ~50%
Internal Back Office Admin Dashboard
  • Discovery call to map your day to day operations and the records your team manages
  • Custom built admin dashboard with secure role based logins for your staff
  • Full create, read, update and delete screens for up to six of your core record types (e.g. jobs, clients, suppliers, orders)
£4,400 to £5,200£2,400

Typically 14 to 28 working days

Stock & Inventory Management App
Stock & Inventory Management App
  • Real time tracking of items, stock levels and locations
  • Supplier records and low stock reorder alerts
  • Full change history and audit trail
from£2,200

Scoped to your project

Custom API & Systems Integration
Custom API & Systems Integration
  • Discovery to map the data flow and edge cases
  • Custom API or integration connecting your existing tools
  • Two way sync of records (orders, leads, invoices, stock and more)
from£1,600

Scoped to your project