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Powerful APIs for
Modern Applications
Production-ready APIs for email intelligence, document parsing, text analysis, and infrastructure services. One API key for all 40, with a free tier to start.
Quick Start
Get up and running with API Codex in minutes.
Authentication
Learn how to authenticate your API requests.
API Catalog
Explore all 11 APIs with interactive documentation.
What is API Codex?
API Codex is a comprehensive API services provider offering specialized solutions for developers and technical professionals. We focus on delivering high-quality, developer-friendly APIs that solve real-world problems efficiently.
Every API runs on one platform: a single API key, one bill, consistent authentication, usage tracking in your dashboard, and interactive testing right here in the docs.
Email APIs
🧠 Email Intelligence
Validate, verify, and analyze email addresses with advanced intelligence.
- Email validation & verification
- Disposable email detection
- Domain reputation checking
🛡 Email Deliverability
Ensure your emails reach their intended recipients.
- SPF, DKIM, DMARC verification
- Spam score analysis
- Blacklist monitoring
📨 Email Parser
Extract structured data from email content automatically.
- Header analysis
- Attachment processing
- Metadata extraction
Document Parsing APIs
👤 Resume Parser
AI-powered resume parsing for ATS and recruitment systems.
- Contact information extraction
- Work experience parsing
- Skills & certifications
🧾 Invoice Parser
Automated invoice data extraction with OCR and AI.
- Line item extraction
- Vendor information parsing
- Tax breakdown
🛒 Receipt Parser
Digitize receipts and extract transaction details.
- Merchant information
- Item-level details
- Total & tax calculation
🏆 Skill Parser
Extract and categorize skills from text for HR applications.
- Technical skill identification
- Proficiency assessment
- Skill categorization
Text Intelligence APIs
📊 Text Analysis
Advanced NLP for sentiment analysis, entity recognition, and more.
- Sentiment analysis
- Entity recognition
- Language detection
🔒 Text Anonymization
Protect sensitive information with AI-powered anonymization.
- PII detection & redaction
- Custom entity masking
- Compliance-ready
Infrastructure APIs
🖥 DNS Lookup
Comprehensive DNS queries and domain information lookup.
- A, AAAA, MX, TXT, NS records
- Reverse DNS lookups
- WHOIS information
🔎 SERP API
Access search engine results programmatically for SEO insights.
- Real-time search results
- Multiple search engines
- Location-based results
Why Choose API Codex?
Developer-First
Comprehensive docs, clear examples, and straightforward integration.
Reliable & Secure
99.9% uptime SLA with enterprise-grade security.
Scalable
From startup to enterprise, our APIs scale with your needs.
Free Tier
All APIs offer free tiers for testing and development.
Resources
FAQ
Common questions about API keys, credits, plans, and integration.
Glossary
Technical terms and API concepts explained.
Rate Limiting
Understand API quotas and best practices.
Error Handling
Handle errors and build resilient applications.
Best Practices
Production-ready patterns for reliable apps.
Platform Overview
Architecture, security, and platform features.
Ready to Get Started?
One API key unlocks all 40 APIs, and the free plan includes 1,000 credits a month. Get started in minutes with comprehensive documentation and code examples.