ISBN Validator API
ISBN Validator is a comprehensive tool for validating and parsing ISBN-10 and ISBN-13 book identification numbers. It validates checksums and provides detailed information about each ISBN component.
Live Test API
Try out the ISBN Validator with a live request and see the response in real-time.
API Request
API Response
123456789101112131415161718{ "status": "ok", "error": null, "data": { "valid": true, "isbn": "978-0-306-40615-7", "type": "ISBN-13", "normalized": "9780306406157", "formatted": "978-0-306-40615-7", "checksum_valid": true, "prefix": "978", "group": "0", "publisher": "306", "title": "40615", "check_digit": "7", "error": null } }
Multiple Access Methods
REST API with multiple response formats, GraphQL, and MCP for AI agents
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JavaScript Object Notation
XML
Extensible Markup Language
YAML
Human-readable data format
CSV
Comma-separated values
GraphQL
Query language for APIs
MCP
AI agent integration
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Frequently Asked Questions
Get answers to common questions about the ISBN Validator API
Who built the ISBN Validator API?
The ISBN Validator API is built and maintained by APIVerve. All 300+ APIs on our platform are developed in-house by the APIVerve team, ensuring consistent quality, unified authentication, predictable pricing, and enterprise-grade reliability backed by our 99.9% uptime SLA. We handle the infrastructure, maintenance, and updates so you can focus on building your application.
What does the ISBN Validator API do?
ISBN Validator is a comprehensive tool for validating and parsing ISBN-10 and ISBN-13 book identification numbers. It validates checksums and provides detailed information about each ISBN component. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.
How fast is the ISBN Validator API?
The ISBN Validator API has an average response time of 361ms, with a median (p50) of 342ms and 99th percentile of 491ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.
How much does the ISBN Validator API cost?
Each call to the ISBN Validator API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.
How do I authenticate ISBN Validator API requests?
Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.
What HTTP methods does ISBN Validator support?
The ISBN Validator API supports GET requests. Simply pass your parameters as query strings in the URL. Check our documentation for detailed parameter specifications.
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