All APIs

Browse curated APIs with real-time link verification, pricing history, and community feedback. Filter by free tiers or explore adjacent categories.

Trulio
Auth, Identity & KYCTrulio

Trulio

Standardized Identity API, KYB (Business Verification), Integrating Massive Data Sources. Comprehensive (KYC/KYB), global data coverage.

New
Paid
Interactive Calendar Interface, Drag & Drop Events
Scheduling & CalendarsFullCalendar

Interactive Calendar Interface, Drag & Drop Events

JavaScript Library (Non-traditional REST API) Target Users: Web Frontend Developers, Needing Highly Customizable In-browser Calendar Display.

Scheduling & CalendarsProductivityScheduling+1
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Paid
Auth0 (Okta)
Auth, Identity & KYCAuth0 (Okta)

Auth0 (Okta)

User Login, SSO, MFA, Authorization Management. Developer-friendly, high scalability.

New
Paid
Shipping API (Rates/Labels), Tracking API, Address Validation
Shipping, Fulfillment & TrackingFedEx

Shipping API (Rates/Labels), Tracking API, Address Validation

REST/SOAP API Target Users: Needing Deep Integration with FedEx Services, High Volume, Enterprise Logistics.

Shipping, Fulfillment & TrackingAIMachine Learning+4
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Paid
Real-time Data Network
Search, Recommendations & PersonalizationPubNub

Real-time Data Network

Pub/Sub Real-time Data Network API, Low Latency Message Transmission.

Search, Recommendations & Personalization
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Paid
Singular
Analytics, Tagging & AttributionSingular

Singular

Unified Cost, Revenue and Attribution Data, Data Cleaning. Unified data sources, eliminating data silos.

New
Paid
Databricks
AI & DataDatabricks

Databricks

Lakehouse Data Platform, MLflow API REST API, SQL Endpoints Target Users: Data scientists, data engineers, enterprises needing unified data and AI workflows.

New
Paid
AWS Rekognition
AI & DataAWS Rekognition

AWS Rekognition

Image/Video Analysis (Objects, Faces, Content Moderation) REST API Target Users: AWS Cloud users, large-scale media content analysis.

New
Paid
Shipping API (Rates/Labels), Tracking API, Locator API
Shipping, Fulfillment & TrackingUPS

Shipping API (Rates/Labels), Tracking API, Locator API

REST/SOAP API Target Users: Needing Deep Integration with UPS Services, International Express, Supply Chain Management.

Shipping, Fulfillment & TrackingAIMachine Learning+1
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Freight Forwarding API, Sea/Air Tracking, Supply Chain Visibility
Shipping, Fulfillment & TrackingFlexport

Freight Forwarding API, Sea/Air Tracking, Supply Chain Visibility

REST API Target Users: Enterprises processing Bulk Cargo, International Supply Chain, needing End-to-End Visibility.

Shipping, Fulfillment & TrackingAIMachine Learning+1
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Paid
Order Import, Batch Label Printing, Carrier Integration
Shipping, Fulfillment & TrackingShipStation

Order Import, Batch Label Printing, Carrier Integration

SaaS Platform API Target Users: SMB E-commerce, Sellers needing One-stop Order & Shipping Management.

Shipping, Fulfillment & TrackingAIMachine Learning+1
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Full Stack Observability (APM, RUM)
Search, Recommendations & PersonalizationDatadog

Full Stack Observability (APM, RUM)

Metrics/Logs/Traces Data Ingestion & Extraction API, Integrating RUM/Replay.

Search, Recommendations & Personalization
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Paid
Tickets & Chat
Search, Recommendations & PersonalizationHubSpot Service Hub

Tickets & Chat

Ticket API, Tightly Integrated with HubSpot CRM.

Search, Recommendations & Personalization
New
Paid
AI-Search, Recommendations API
Search, Recommendations & PersonalizationCoveo

AI-Search, Recommendations API

Enterprise AI Platform, Unifying Data across Systems.

Search, Recommendations & PersonalizationAIMachine Learning+1
New
Paid
Enterprise Scheduling API (HIPAA Compliant)
Scheduling & CalendarsOnSched

Enterprise Scheduling API (HIPAA Compliant)

REST API Target Users: Scheduling for Healthcare, Finance, and other High-compliance Industries.

Scheduling & CalendarsProductivityScheduling+1
New
Paid
Recommendation & Personalized Search API
Search, Recommendations & PersonalizationRecombee

Recommendation & Personalized Search API

Focuses on AI Recommendation Systems.

Search, Recommendations & Personalization
New
Paid
Personalized Data & Recommendation Extraction API
Search, Recommendations & PersonalizationInsider / Dynamic Yield

Personalized Data & Recommendation Extraction API

Provides Website Personalization, A/B Testing, and Recommendation Widgets.

Search, Recommendations & Personalization
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Paid
GetRecommendations API, PutEvents API
Search, Recommendations & PersonalizationAWS Personalize

GetRecommendations API, PutEvents API

Uses Amazon.com-grade Machine Learning Models.

Search, Recommendations & Personalization
New
Paid
Hugging Face
AI & DataHugging Face

Hugging Face

Inference API (Thousands of Models) REST API Target Users: ML/AI researchers, developers, deploying open source models.

New
Paid
Enterprise Calendar Sync & Scheduling
Scheduling & CalendarsCronofy

Enterprise Calendar Sync & Scheduling

Unified REST API Target Users: Enterprise Apps, Scheduling Services needing High Reliability, Real-time Multi-calendar Sync.

Scheduling & CalendarsProductivityScheduling+1
New
Paid
Chat & Activity Feeds
Search, Recommendations & PersonalizationStream

Chat & Activity Feeds

Chat API & SDK, High Performance, Low Latency.

Search, Recommendations & PersonalizationCommunicationMessaging+1
New
Paid
In-App Chat
Search, Recommendations & PersonalizationSendbird

In-App Chat

Chat API & SDK, Highly Scalable UI Kit.

Search, Recommendations & Personalization
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Paid
CPaaS platform
Search, Recommendations & PersonalizationVonage

CPaaS platform

SMS, Voice, Video, Verify API, Suitable for International Communication.

Search, Recommendations & Personalization
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SMS, Voice, Video
Search, Recommendations & PersonalizationTwilio (CPaaS)

SMS, Voice, Video

Core Communication Infrastructure API, Industry Standard.

Search, Recommendations & PersonalizationCommunicationMessaging+1
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Paid