All APIs

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

Real-time Sales Tax, Use Tax, VAT/GST Calculation, Filing
Internationalization & ComplianceAvalara (AvaTax API)

Real-time Sales Tax, Use Tax, VAT/GST Calculation, Filing

REST API Target Users: E-commerce, SaaS Platforms, Enterprises needing Automated Global Transaction Tax Calculation & Compliance.

Internationalization & CompliancePaymentsBilling+4
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Real-time Mobile Attribution, In-App Event Tracking, Anti-Fraud.
Analytics, Tagging & AttributionAppsFlyer

Real-time Mobile Attribution, In-App Event Tracking, Anti-Fraud.

AppsFlyer empowers marketers and helps them make better decisions.

Analytics, Tagging & AttributionDataAnalytics+1
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Kaggle
AI & DataKaggle

Kaggle

Dataset & Model Download, Competition Submission REST API (CLI Tool) Target Users: Data scientists, ML researchers, competition participants.

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Intuit QuickBooks Online API
Accounting, Invoicing & FinanceIntuit QuickBooks Online API

Intuit QuickBooks Online API

Financial Transactions, Invoices, Customers, Vendors, General Ledger REST API Target Users: Enterprises of all sizes, applications needing integration with US-dominant accounting systems.

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Cometly / MarkTag
Analytics, Tagging & AttributionCometly / MarkTag

Cometly / MarkTag

Server-side Tracking, AI Ad Optimization, Precise Conversion Sync. Addressing privacy restrictions, ensuring data accuracy.

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Microsoft Dynamics 365 Sales
CRM & SalesMicrosoft Dynamics 365 Sales

Microsoft Dynamics 365 Sales

Comprehensive API (OData) CRM/ERP integration, especially suitable for enterprises already in the Microsoft ecosystem. Target Users: Enterprises using the Microsoft tech stack.

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Data Exploration, BI, Scalable API Collection.
Analytics, Tagging & AttributionLooker

Data Exploration, BI, Scalable API Collection.

Data Modeling and BI Visualization.

Analytics, Tagging & AttributionDataAnalytics+1
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Cognitive Services: Speech, Vision, Language, Decision
AI & DataIBM Watson

Cognitive Services: Speech, Vision, Language, Decision

The page you’re looking for may have been moved or deleted. Start a new search on ibm.com or visit one of the popular sites shown below.

AI & DataAIMachine Learning+4
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Customer Communication Platform
Search, Recommendations & PersonalizationIntercom

Customer Communication Platform

Messaging API, Strong Conversational Marketing Capabilities.

Search, Recommendations & Personalization
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Financial Market Data, Analytics
AI & DataFactSet / LSEG (Refinitiv)

Financial Market Data, Analytics

Backed by 25 years of trusted expertise, World-Check On Demand delivers real-time, rich, and highly structured content via an API delivery mechanism enabling easy and efficient integration into your s

AI & DataAIMachine Learning+4
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Google (Google AI/Vertex AI)
AI & DataGoogle (Google AI/Vertex AI)

Google (Google AI/Vertex AI)

Gemini (Multimodal Model), Imagen (Image Generation), PaLM (Legacy) REST API, SDK, Python Library Target Users: Enterprise AI Apps, Google Cloud Ecosystem Users, Multimodal Processing.

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Snowflake
AI & DataSnowflake

Snowflake

Data Cloud, Snowpark API SQL API, Snowpark SDK Target Users: Cloud data warehouse users, real-time data analytics, cross-cloud data sharing.

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Enterprise Customer Journey Analysis, Real-time Reporting.
AnalyticsAdobe Analytics

Enterprise Customer Journey Analysis, Real-time Reporting.

A collection of APIs powering Adobe Analytics products. It allows direct server calls to manipulate data, create reports, get insights, and manage Adobe Analytics components (segments, metrics).

Analytics, Tagging & AttributionDataAnalytics+1
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FreshBooks API
Accounting, Invoicing & FinanceFreshBooks API

FreshBooks API

Focuses on Invoices, Time Tracking, Expense Management REST API Target Users: Freelancers, small businesses, service-based professionals.

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AppsFlyer
Analytics, Tagging & AttributionAppsFlyer

AppsFlyer

Real-time Mobile Attribution, In-app Event Tracking, Fraud Prevention. Mobile attribution leader, high accuracy.

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Content Delivery CDN, Machine/Community Translation, i18n Support
Internationalization & ComplianceLocalazy

Content Delivery CDN, Machine/Community Translation, i18n Support

REST API & CLI Target Users: Developers and Startups seeking Highly Automated, Real-time Translated Content Delivery.

Internationalization & ComplianceStorageCloud+4
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Lakehouse Data Platform, MLflow API
AI & DataDatabricks

Lakehouse Data Platform, MLflow API

REST API, SQL Endpoints Target Users: Data Scientists, Data Engineers, Enterprises needing unified Data and AI workflows.

AI & DataAIMachine Learning+4
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Doc Generation, eSignature, Proposal/Quote Workflows
Documents, PDFs & eSignaturePANDADOC API

Doc Generation, eSignature, Proposal/Quote Workflows

REST API Target Users: Sales and Marketing Teams, Applications needing to Auto-generate Complex Business Docs and Sign.

Documents, PDFs & eSignature
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Claude 3 Series (Opus, Sonnet, Haiku)
AI & DataAnthropic

Claude 3 Series (Opus, Sonnet, Haiku)

REST API Target Users: Enterprise AI applications prioritizing security, long context, and deep reasoning.

AI & DataAIMachine Learning+4
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Branch
Analytics, Tagging & AttributionBranch

Branch

Deep Linking, Cross-platform User Journey Tracking. Unified Web, Mobile, and App Tracking.

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Financial Mgmt, AP/AR, General Ledger
Accounting, Invoicing & FinanceSage (Sage Intacct, Sage Accounting) API

Financial Mgmt, AP/AR, General Ledger

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block i

Accounting, Invoicing & FinanceFinanceTrading+4
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Microsoft Azure AI Services
AI & DataMicrosoft Azure AI Services

Microsoft Azure AI Services

Azure OpenAI Service (GPT-4/DALL-E), Copilot Stack REST API Target Users: Microsoft Cloud/Enterprise customers, seeking high security and compliance LLM deployment.

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Data Standardization, 600+ Connectors, Warehouse Integration.
Analytics, Tagging & AttributionFunnel

Data Standardization, 600+ Connectors, Warehouse Integration.

Solves Marketing Data Chaos, Provides Standardized Data.

Analytics, Tagging & AttributionDataAnalytics+1
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Dataset & Model Downloads, Competition Submissions
AI & DataKaggle

Dataset & Model Downloads, Competition Submissions

REST API (CLI Tool) Target Users: Data Scientists, ML Researchers, Competition Participants.

AI & DataAIMachine Learning+4
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