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ToolForte

REST API with 20 deterministic utility endpoints for developers and AI agents: IBAN validation (mod-97), VAT calculation and EU VAT number format checks, Dutch public holidays and working-day math, cron parsing, regex testing, JSON/CSV/Base64/URL/Markdown transforms, text diffs, UUIDs, and Dutch test data generators. Free tier: 1,000 calls/month, no credit card. Also available as a free MCP server for AI assistants.

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Interactive OpenAPI documentation. Requests are sent directly from your browser to the API provider.

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Features & Specifications

HTTPS Support
Yes
CORS Support
Unknown
Authentication
apiKey
Pricing Model
Free Option

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