Developer APIs
That Just Work
Production-ready micro-APIs for metadata extraction, JSON schema inference, and cron analysis. Built for developers who need reliable tools, not headaches.
Three APIs, One Platform
Each API is purpose-built, documented, and maintained. Subscribe once on RapidAPI and access all three.
OG Metadata Extractor
POST /extract
Extract rich metadata from any URL in milliseconds
Pull Open Graph tags, Twitter Cards, favicons, reading time estimates, and canonical URLs. Supports batch extraction for bulk processing. Perfect for link previews, SEO tools, and content aggregators.
- Full Open Graph & Twitter Card extraction
- Reading time estimation
- Batch URL processing
- Favicon detection
JSON Schema Inference
POST /infer
Infer and validate JSON schemas from any data
Generate Draft-7 JSON Schema from sample data automatically. Validate JSON payloads against any schema. Built for AI output validation, API contract testing, and data pipeline quality gates.
- Draft-7 schema inference
- Full schema validation
- Genson-based intelligent inference
- Detailed validation error reporting
Cron Expression Analyzer
POST /parse
Parse, validate, and analyze any cron expression
Human-readable descriptions, next-run predictions, and timezone-aware field breakdowns. Supports standard 5-field and extended 6-field cron expressions. Essential for scheduling tools and DevOps automation.
- Human-readable cron descriptions
- Timezone-aware next-run predictions
- 5 and 6 field expression support
- Field-by-field breakdown
OG Metadata Extractor
Pull Open Graph tags, Twitter Cards, favicons, reading time estimates, and canonical URLs. Supports batch extraction for bulk processing. Perfect for link previews, SEO tools, and content aggregators.
- Full Open Graph & Twitter Card extraction
- Reading time estimation
- Batch URL processing
- Favicon detection
- Redirect following
- Automatic encoding detection
curl -X POST \
"https://og.prin7r.comPOST /extract" \
-H "Content-Type: application/json" \
-H "X-RapidAPI-Key: YOUR_KEY" \
-d '{"example": "payload"}'JSON Schema Inference
Generate Draft-7 JSON Schema from sample data automatically. Validate JSON payloads against any schema. Built for AI output validation, API contract testing, and data pipeline quality gates.
- Draft-7 schema inference
- Full schema validation
- Genson-based intelligent inference
- Detailed validation error reporting
- Support for complex nested structures
- Array and object merging
curl -X POST \
"https://json-schema.prin7r.comPOST /infer" \
-H "Content-Type: application/json" \
-H "X-RapidAPI-Key: YOUR_KEY" \
-d '{"example": "payload"}'Cron Expression Analyzer
Human-readable descriptions, next-run predictions, and timezone-aware field breakdowns. Supports standard 5-field and extended 6-field cron expressions. Essential for scheduling tools and DevOps automation.
- Human-readable cron descriptions
- Timezone-aware next-run predictions
- 5 and 6 field expression support
- Field-by-field breakdown
- Batch cron validation
- 100+ timezone library
curl -X POST \
"https://cron.prin7r.comPOST /parse" \
-H "Content-Type: application/json" \
-H "X-RapidAPI-Key: YOUR_KEY" \
-d '{"example": "payload"}'Simple, transparent pricing
Subscribe on RapidAPI. One subscription covers all three APIs. No surprises.
Free
For exploration and prototyping
- 100 requests / month
- All 3 APIs included
- Community support
- Standard rate limits
Pro
For indie developers and startups
- 10,000 requests / month
- Priority support
- Higher rate limits
- Batch endpoints
- API key access
- Email alerts
Business
For teams and production workloads
- 100,000 requests / month
- Dedicated support
- Highest rate limits
- Custom SLAs
- Usage analytics
- Webhook notifications
- Team access management
Pay with Crypto
Direct crypto payments for Pro and Business plans. Zero platform fees, instant activation, and full anonymity. We accept Bitcoin, Ethereum, and USDC.
Contact [email protected] with your desired plan and payment currency. Activation within 24 hours.
Enterprise & Teams
Volume licensing, custom SLAs, and dedicated onboarding for teams of 10+. Purchase orders, invoicing, and enterprise procurement supported via FastSpring.
FastSpring integration in progress. Contact [email protected] for volume licensing and custom contracts today.
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