All APIs

Payments & BillingSquare

Square

POS system integration, unified physical and online management, high usability. Target Users: North America focused, suitable for SMBs

Payments & Billing支付寶 (Alipay)

Alipay (支付寶)

**Focuses on domestic China and cross-border to Chinese consumers.** Provides various payment interfaces. Target Users: Global merchants serving Greater China and attracting Chinese consumers.

Marketing, Email & PushPostmark

Postmark

Focuses on Transactional Email API. Fast transmission, extremely high reliability, excluding promotional emails.

Marketing, Email & Pushmail gun

Transactional Email API, Email Validation API, Detailed Logs.

Developer-first, Complete Toolkit, High Reliability.

Marketing, Email & PushAmazon SES

Large-scale Email Sending Service.

Cost-effective, Deeply Integrated with AWS Ecosystem.

Marketing, Email & PushTwilio Sendgrid

Transactional Email API, Marketing Emails, Deliverability Tools.

Industry Standard, Extremely High Volume, Extremely Reliable.

Marketing, Email & PushAmazon SES

Amazon SES

Large-scale Email Sending Service. Cost-effective, deeply integrated with AWS ecosystem.

Marketing, Email & PushBrevo

Brevo (原 Sendinblue)

Email API, Marketing Automation, SMS. Provides a balanced solution of Marketing Suite and Transactional API.

Marketing, Email & Pushmail gun

mail gun

Transactional Email API, Email Validation API, Detailed Logs. Developer-first, complete toolkit, high reliability.

Headless CMS / Content APISanity

Real-time API (GROQ/GraphQL)

Provides direct HTTP access to Sanity's Content Lake and management tools, enabling granular control over content, assets, and system configuration.

Content, Media & FilesContentful

Contentful

Content Delivery API (REST/GraphQL) Enterprise-grade, high scalability, flexible content models and powerful multi-language support. Target Users: Multinational enterprises, multi-brand websites, e-commerce product content.

Content, Media & FilesRips

REST/GraphQL API

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Content, Media & FilesAmazon S3 (Simple Storage Service)

REST API for Object Storage

Industry Standard Cloud Object Storage Service, Extremely High Reliability, Scalability, and Low Cost. Target Users: Large App Infrastructure, Data Lakes, Backups.

Content, Media & FilesStoryblok

Storyblok

Content Delivery API (REST/GraphQL) Unique Visual Editor allowing marketers to preview pages like a traditional CMS. Target Users: Marketing websites, teams needing a friendly editing experience.

Content, Media & FilesHygraph

Hygraph (原 GraphCMS)

GraphQL Native API Focuses on GraphQL and Content Federation, integrating multiple data sources via a single API. Target Users: Complex data integration, dev teams pursuing high-performance queries.

Content, Media & FilesCloudinary

Image & Video API (Transformation & Delivery)

Install the new Cloudinary VS Code Extension to bring media asset management directly to your IDE. Browse, search, upload, and reference assets without switching contexts.

Content, Media & FilesCloudinary

Cloudinary

Image & Video API (Transformation & Delivery) Focuses on media file optimization, real-time conversion, and global CDN delivery. Target Users: Any website/app processing large volumes of images/video (E-commerce, Media).

Internationalization & ComplianceStripe Tax

Identify Tax Obligations, Rate Calculation & Collection, Automated Filing

REST API (Integrated in Stripe Payments) Target Users: Online Businesses using Stripe Ecosystem, Seeking One-stop Payment & Tax Compliance Solution.

Payments & BillingPayoneer

Payoneer

Cross-border money movement, B2B payments, multi-currency management. Target Users: Global freelancers, SMBs and marketplace sellers.

Internationalization & ComplianceVAT API (vatapi.com)

VAT API (vatapi.com)

EU/UK VAT Rate Lookup, Real-time VAT Number Validation (VIES/HMRC) REST API Target Users: Enterprises focused on EU TBE Service (Telecom, Broadcasting, Electronic) Tax Compliance.

Internationalization & ComplianceOpenAI Compliance API

Enterprise ChatGPT Usage Logs & Metadata Access

REST API Target Users: Customers needing to integrate AI usage logs into eDiscovery/DLP/SIEM systems for enterprise compliance.

FinanceXero API

Invoices, Bills, Bank Feeds, Payroll

An API providing programmatic access to accounting features and financial data within the Xero platform.

Internationalization & ComplianceSmartling

Smartling

Translation Content Management, AI-assisted Translation, Translator Workflows REST API Target Users: Large enterprises with high volume content needing strict quality control and professional human translation services.

Internationalization & CompliancePhrase

Phrase (原 PhraseApp)

Translation Memory, Glossary, Design Tool Integration, Multi-format Support REST API Target Users: Software Localization Platform focused on High Performance and Cross-functional Collaboration.