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Best Unified APIs Software in 2026

Unified APIs software gives applications a common way to work with connected services and normalized data. This category can help budget-conscious teams select integration tools with web, API, iOS, Android, self-hosted, or extension access.

  1. 1

    Nango

    by Nango
    Free plan Open source APISelf-hostedWeb

    Nango combines code-based integration development with authentication and runtime management. Its free limits and the absence of EU-hosted cloud may matter when assessing deployment needs.

    8.6 Free plan · paid from $50/mo Visit site
  2. 2

    Knit

    by Knit
    Free plan AndroidAPIiPhone+1

    Knit brings together API-based integrations, workflow creation, and managed-auth MCP access.

    7.2 Free plan · paid from $29/mo · 30-day trial Visit site
  3. 3

    Merge

    Free plan APIWeb
    6.9 Free plan · paid from $650/mo Visit site
  4. 4

    Rutter

    Free plan APIWeb
    6.8 Pricing on request · 30-day trial Visit site
  5. 5

    Nylas Scheduler

    Free plan Web

    Nylas Scheduler covers shared scheduling workflows with calendar sync, reminders, payments, and booking pages.

    6.7 Free plan · paid from $15/mo Visit site
  6. 6

    API2Cart

    Free trial APISelf-hostedWeb

    API2Cart centralizes connections to many commerce platforms through one API, with webhooks, SDK resources, and self-hosting options.

    6.5 From $300/mo (annual) · 14-day trial Visit site
  7. 7

    Apideck

    Free trial APIWeb
    6.3 From $599/mo · 30-day trial Visit site
  8. 8

    Finverse Bank Data API

    Free trial APIWeb

    Finverse Bank Data API combines account, transaction, balance, and statement data with documented security controls.

    6.0 From $0.50 Visit site
  9. 9

    Plaid

    Free trial AndroidAPIiPhone+1

    Choose Plaid if your app or service needs financial account connections, financial data, or bank payment processing across its listed products.

    6.0 Pricing on request Visit site
  10. 10

    Truto Accounting API

    Free trial APISelf-hostedWeb
    5.8 From $999/yr · 30-day trial Visit site
  11. 11

    Basiq

    Paid APIWeb

    Basiq provides several ways to access and interpret customer-consented financial data, with coverage across banking, superannuation, and energy.

    5.7 From $0.25/user/mo Visit site
  12. 12

    Flinks

    Paid AndroidAPIiPhone+1

    Flinks combines connectivity, enrichment, document processing, and payments in one platform. Its starting price is $250/mo, with usage limits and contract overage terms to consider.

    5.7 From $250/mo Visit site
  13. 13

    Unipile Social Media API

    Free trial APIExtensionWeb
    5.7 From $55/mo · 7-day trial Visit site
  14. 14

    Codat

    Paid APIWeb

    Choose Codat if a commercial bank needs portfolio insights alongside standardized connections to accounting, banking, and commerce platforms.

    5.6 Pricing on request Visit site
  15. 15

    Unified.to Accounting API

    Free trial APIWeb
    5.6 From $750/mo · 30-day trial Visit site
  16. 16

    Yapily Data

    Paid API

    Choose Yapily Data if your application needs real-time, consent-based bank information across supported account types and geographies.

    4.9 Pricing on request Visit site
  17. 17

    Bindbee

    by Bindbee Inc.
    Paid APIWeb
    4.7 Pricing on request Visit site
  18. 18

    CloudSponge

    Paid Web
    4.5 From $99/yr · 14-day trial Visit site
  19. 19

    CRMBridge.ai

    Paid Web
    4.3 Pricing on request Visit site
  20. 20

    fastn Unified API

    Paid Web
    4.2 Pricing on request Visit site
  21. 21

    Cronofy Scheduling

    Paid
    4.1 Pricing on request Visit site
  22. 22

    Hotglue Accounting Integrations

    Paid Web
    4.1 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Assess each tool's free plan, trial terms, starting paid price, integrations, API categories, sync modes, custom integration support, normalized data model, and self-hosted availability. If code access matters, check the open-source licence for the tool you are considering.

Questions

What does unified API software provide?

It provides a common way to connect applications with services through APIs, with features such as integrations and a normalized data model.

Can I use a unified API tool for free?

Free plans and free trials are available from products in this category. Check the terms for the specific tool.

Which platforms can these tools support?

Listed products run on platforms that include web, API, iOS, Android, self-hosted deployments, and extensions.

What pricing should I compare?

Compare the free plan, trial terms, and paid starting price. Pricing may be stated as a monthly amount, yearly amount, per-user amount, a starting amount, or on request.

Is open-source code available?

The category includes products that offer open-source code. Review a tool's licence before using or changing its code.

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