All APIs

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

monday.com CRM
CRM & Salesmonday.com CRM

monday.com CRM

REST API, GraphQL API Highly visual, customizable Kanban-style CRM. Target Users: Teams preferring visual workflows and flexible customization.

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File Sharing & Management API
Storage & File ManagementDropbox API

File Sharing & Management API

The Dropbox DBX Platform provides comprehensive APIs, SDKs, and embeddable components for integrating file storage and content management.

Content, Media & FilesStorageCloud+1
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Oracle CRM / SAP CRM
CRM & SalesOracle CRM / SAP CRM

Oracle CRM / SAP CRM

Full Customer Experience (CX) API Focuses on total customer experience and high-level sales management for large enterprises. Target Users: Top-tier enterprises, focusing on CX integration.

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Mobile/Web Push API, Email, SMS Integration, Journey Orchestration.
Marketing, Email & PushOneSignal

Mobile/Web Push API, Email, SMS Integration, Journey Orchestration.

Cross-channel Engagement Leader, Powerful Real-time Segmentation.

Marketing, Email & PushFinanceTrading+10
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Adyen
Payments & BillingAdyen

Adyen

Omnichannel Payments (Online, POS), Global Acquiring, Risk Management. Target Users: Global Large Retailers, Enterprise Customers

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WeChat Pay
Payments & BillingWeChat Pay

WeChat Pay

**Focuses on domestic China and cross-border to Chinese consumers.** API supports in-app payments, QR Code payments. Target Users: Global merchants serving Greater China and attracting Chinese consumers.

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Email API, Marketing Automation, SMS.
Marketing, Email & PushBrevo

Email API, Marketing Automation, SMS.

Provides a balanced solution of Marketing Suite and Transactional API.

Marketing, Email & PushFinanceTrading+10
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Localize
Internationalization & ComplianceLocalize

Localize

Translation Management System (TMS), Real-time Editing, Automated Screenshots, Version Control REST API & CLI Target Users: Software dev teams, enterprises needing to automate translation tasks in CI/CD pipelines.

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Stripe Payments
Payments & FinanceStripe

Stripe Payments

Stripe Payments provides powerful Payments & Finance capabilities for developers. Integrate Stripe Payments to enhance your application with robust Payments & Finance features.

paymentsbillingcheckout
4.0(2)
Free Tier
SEON
Auth, Identity & KYCSEON

SEON

Data-driven Fraud Prevention (Email/Phone/Device Fingerprinting). Real-time risk scoring, preventing account abuse.

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Onfido
Auth, Identity & KYCOnfido

Onfido

Document/Biometric Verification, Global Compliance. Modern API, balancing security and user experience.

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Enterprise CX Modules
Search, Recommendations & PersonalizationOracle CRM / SAP CRM

Enterprise CX Modules

Deeply integrates Total Customer Experience and High-level Sales Management.

Search, Recommendations & Personalization
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Fully Customizable Verification Flows & UI/UX.
Auth, Identity & KYCPersona

Fully Customizable Verification Flows & UI/UX.

The Persona API is a powerful tool that enables you to integrate identity verification, risk assessment, and compliance solutions into your applications. Through our powerful endpoints, you can automa

Auth, Identity & KYCSecurityIdentity+1
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eSignature, Document Workflow Automation, Cloud Doc Management
Documents, PDFs & eSignatureSignNow API

eSignature, Document Workflow Automation, Cloud Doc Management

REST API Target Users: Seeking easy-to-use and integrated Cloud eSignature solutions.

Documents, PDFs & eSignature
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Focused on Transactional Email API.
Marketing, Email & PushPostmark

Focused on Transactional Email API.

Fast Transmission, Extremely High Reliability, Excluding Promotional Emails.

Marketing, Email & PushFinanceTrading+10
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Marketing Automation API, Behavioral Data Driven.
Marketing, Email & PushKlaviyo

Marketing Automation API, Behavioral Data Driven.

Deep E-commerce Integration, Customer Behavior-based Personalization.

Marketing, Email & PushFinanceTrading+10
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Avalara (AvaTax API)
Internationalization & ComplianceAvalara (AvaTax API)

Avalara (AvaTax API)

Real-time Sales Tax, Use Tax, VAT/GST Calculation, Filing & Reporting REST API Target Users: E-commerce, SaaS platforms, enterprises needing automated global transaction tax calculation & compliance.

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PayPal / Braintree
Payments & BillingPayPal / Braintree

PayPal / Braintree

High brand trust, supporting massive customers. Braintree focuses on mobile and web payment APIs. Target Users: Global, E-commerce and Multinational Transactions

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Comprehensive API (OData)
CRM & SalesMicrosoft Dynamics 365 Sales

Comprehensive API (OData)

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CRM & SalesCRMSales+4
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Cross-border Tax Compliance, VAT/GST Monitoring, DAC7 Reporting
Internationalization & ComplianceLovat Compliance

Cross-border Tax Compliance, VAT/GST Monitoring, DAC7 Reporting

REST API Target Users: Cross-border E-commerce Platforms, Enterprises needing to handle Multi-country VAT Registration and Filing.

Internationalization & CompliancePaymentsBilling+4
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OpenAI Compliance API
Internationalization & ComplianceOpenAI Compliance API

OpenAI Compliance API

Enterprise ChatGPT Usage Logs and Metadata Access REST API Target Users: Customers needing to integrate AI usage logs into eDiscovery/DLP/SIEM systems for enterprise compliance.

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CRM API, Marketing Automation Triggers, Contact Mgmt.
Marketing, Email & PushHubSpot

CRM API, Marketing Automation Triggers, Contact Mgmt.

Full CRM Ecosystem, Suitable for B2B.

Marketing, Email & PushFinanceTrading+10
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Twilio Sendgrid
Marketing, Email & PushTwilio Sendgrid

Twilio Sendgrid

Transactional Email API, Marketing Email, Powerful Deliverability Tools. Industry Standard, Extremely High Volume, Extremely Reliable.

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Full Customer Experience (CX) API
CRM & SalesOracle CRM / SAP CRM

Full Customer Experience (CX) API

Make every customer interaction matter by connecting all your business data across marketing, sales, and service. Oracle Customer Experience (CX) offers a connected suite of applications that goes bey

CRM & SalesCRMSales+1
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