17.9
Nango provides infrastructure for building, running, and maintaining integrations between products or AI agents and external APIs.
Free planOpen sourceWebAPISelf-hosted
Best Unified APIs Software in 2026
Unified API software gives an application one connection for services such as accounting, banking, calendars, commerce and contacts. It can present integrations through an API, web interface, mobile app, browser extension or self-hosted setup. Compare the available integrations, API categories, sync modes and custom-integration options. Check for an Android app when phone access matters; platform support may instead…
27.6
Knit provides integration tools for software teams and workflow builders: a Unified API, a natural-language Integrations Agent, and MCP servers.
Free planAndroidiOSWeb
36.8
Flinks combines financial connectivity, data enrichment, document processing, and payments for financial institutions, lenders, and fintechs.
AndroidiOSWeb
- 4
Nylas Scheduler
Free planWeb6.7From $15 a month - 5
API2Cart
API2Cart gives SaaS developers and B2B eCommerce software providers one API for connecting software to more than 80 shopping platforms and marketplaces.
WebAPISelf-hosted6.6From $300 a month - 6
Plaid
Plaid helps people connect financial accounts to apps and services they choose, then manage those connections.
AndroidiOSWebAPI6.6 - 7
Finverse Bank Data API
WebAPI6.4From $0.50 a month - 8
Truto Accounting API
WebAPISelf-hosted6.4From $999 a year - 9
6.4From $750 a month - 10
Unipile Social Media API
WebAPIExtension6.4From $3.50 a month - 11
Apideck
WebAPI6.3From $599 a month - 12
Rutter
Free planWebAPI6.2Free plan - 13
Merge
WebAPI6.1From $650 a month - 14
Codat
WebAPI5.5 - 15
Basiq
WebAPI5.4 - 16
Yapily Data
Yapily Data is an Open Banking API that retrieves consent-based financial information from banks in real time.
API5.3 - 174.7
- 184.7
- 19
CloudSponge
Web4.6 - 20
CRMBridge.ai
Web4.6 - 214.6
- 224.4
Choosing well
Check the cost structure
Compare the free-plan status with the stated starting price. A free plan can help you assess a service before paying, while paid plans may show a monthly, yearly or per-user starting point.
A free trial is another way to evaluate fit. Trial lengths and prices vary, and some services list pricing on request.
Match integrations to your work
Review the available integrations and API categories before choosing a provider. Categories can include calendar and scheduling, while integration coverage differs by service.
Review data and sync controls
A normalized data model can make information consistent across connected services. Compare whether the tool provides one and how it represents the records you need.
Check the available sync modes as well. The right option depends on whether your app needs updates flowing in one direction or between connected systems.
Choose a suitable platform
Platform labels can include web, API, iOS, Android, self-hosted and browser extension. Confirm the access method that fits your phone, tablet, backend or browser workflow.
If Android access is important, verify that an Android app is offered rather than assuming a web or API listing includes one.
Consider code and hosting
Open-source code is available from items in this category, while other services are delivered as paid hosted products. Check the licence before changing or redistributing code.
A self-hosted option can affect where you run the integration. Compare that choice with a hosted web or API setup and your maintenance needs.
Questions people ask
What does unified API software do?
It provides a common way to connect an application with services such as commerce, banking, accounting, calendars or contacts.
Can I use unified API software on Android?
Android is a supported platform category for items in this group, but availability differs by product. Check the individual platform listing for an Android app.
Do these services offer free plans?
A free plan is offered by items in this category. Other products may provide a free trial, a paid starting plan or pricing on request.
What should I compare besides integrations?
Compare API categories, sync modes, custom integrations, a normalized data model, free-plan status, starting price and self-hosted availability.
Can I self-host a unified API service?
Self-hosted is one of the platform options in this category. Confirm the product's listing and licence before selecting that deployment model.