~/CLIRank

Best Automation & Integration APIs in 2026

Workflow automation, project management, scheduling, and file storage APIs. Connect your tools and automate repetitive work.

12 APIs across 6 subcategories

Microsoft Ecosystem(1)

FreeMicrosoft Ecosystem
1.4M/wk

Microsoft Graph API

Access Microsoft 365 data: mail, calendar, files, teams, and users.

CLI
8
Quality
9
npm i @microsoft/microsoft-graph-client

Project Management(3)

FreemiumProject Management
980k/wk

Linear API

Issue tracking and project management with GraphQL API.

CLI
8
Quality
7
npm i @linear/sdk
FreemiumProject Management
192k/wk

Jira API

Manage issues, projects, boards, and workflows in Jira.

CLI
8
Quality
6
npm i jira-client
FreemiumProject Management
139k/wk

Asana API

Manage tasks, projects, and teams in Asana.

CLI
8
Quality
8
npm i asana

File Storage(2)

FreemiumFile Storage
129k/wk

Dropbox API

File storage, sharing, and collaboration.

CLI
8
Quality
8
npm i dropbox
FreeFile Storage

Google Drive API

Manage files and folders in Google Drive.

CLI
8
Quality
3

Workflow Automation(3)

FreemiumWorkflow Automation
79k/wk

n8n API

Open-source workflow automation with 400+ integrations.

CLI
9
Quality
5
npm i n8n
FreemiumWorkflow Automation

Zapier API

Connect and automate workflows across 6,000+ apps.

CLI
6
Quality
3
FreemiumWorkflow Automation

Make (Integromat) API

Visual workflow automation connecting hundreds of services.

CLI
5
Quality
5

Productivity(1)

FreeProductivity

Google Sheets API

Read, write, and format Google Sheets data programmatically.

CLI
8
Quality
3

Scheduling(2)

FreeScheduling

Google Calendar API

Create, read, and manage calendar events and schedules.

CLI
8
Quality
3
FreemiumScheduling

Calendly API

Manage scheduling links, events, and availability.

CLI
6
Quality
4

Browse other API categories

AI & Machine Learning

25 APIs · 9 subcategories

Developer Tools

23 APIs · 11 subcategories

Communication

16 APIs · 6 subcategories

Finance & Payments

16 APIs · 8 subcategories

Maps & Geolocation

15 APIs · 7 subcategories

Data & Information

15 APIs · 11 subcategories

Fintech & Banking

14 APIs · 6 subcategories

Payments & Commerce

13 APIs · 6 subcategories

Authentication & Identity

12 APIs · 5 subcategories

Social Media

12 APIs · 7 subcategories

Shipping & Logistics

12 APIs · 6 subcategories

CRM & Marketing

12 APIs · 7 subcategories

Cloud & Infrastructure

11 APIs · 6 subcategories

Databases & Backend

10 APIs · 6 subcategories

CRM & Sales

10 APIs · 3 subcategories

Analytics & Monitoring

9 APIs · 5 subcategories

Media & Streaming

9 APIs · 6 subcategories

PDF & Document

8 APIs · 5 subcategories

Translation & NLP

8 APIs · 3 subcategories

Calendar & Scheduling

7 APIs · 2 subcategories

Project Management

7 APIs · 3 subcategories

Video & Media

7 APIs · 5 subcategories

Search & Data

6 APIs · 3 subcategories

Content Management

6 APIs · 3 subcategories

Realtime & WebSockets

6 APIs · 5 subcategories

Forms & Surveys

6 APIs · 2 subcategories

KYC & Identity

6 APIs · 1 subcategories

Feature Flags

6 APIs · 2 subcategories

Queue & Messaging

6 APIs · 6 subcategories

Image Processing

6 APIs · 5 subcategories

Vector Databases

6 APIs · 6 subcategories

Customer Support

6 APIs · 3 subcategories

Logging & Observability

6 APIs · 4 subcategories

Subscription & Billing

6 APIs · 3 subcategories

Travel & Hospitality

5 APIs · 4 subcategories

Push Notifications

5 APIs · 3 subcategories

E-Signatures

5 APIs · 2 subcategories

CDN & Edge

5 APIs · 2 subcategories

DNS

5 APIs · 3 subcategories

Secrets Management

5 APIs · 4 subcategories

Tax & Compliance

5 APIs · 4 subcategories

SEO & Web Analytics

5 APIs · 3 subcategories

Blockchain & Crypto

5 APIs · 4 subcategories

HR & Payroll

5 APIs · 4 subcategories

Weather

4 APIs · 2 subcategories

News & Content

4 APIs · 3 subcategories

Security

3 APIs · 3 subcategories