Tools API

Utility and finance APIs for production use. Includes calculators and developer tools under one namespace with high-performance Rust/Axum backend.

Swagger UI OpenAPI JSON API Endpoint

What You Get

16+
Tools Endpoints
Finance calculators, JSON utilities, encoding/hash and password tools.
Fast
Production Performance
Low-latency responses with Rust + Axum architecture.
Shared
Unified API Key
Same X-API-Key works for Tools API, Address API, and JSON Guardian.
Docs
Dedicated Swagger
Browse only Tools endpoints via a separate Swagger page.

Shared API Plan

Tools API uses the same dashboard, API key, and quota model as Indian Address Normalizer API and JSON Guardian.

Include X-API-Key in every request.

Open Shared Dashboard

Quick Start Examples

GST Late Fee Calculator

curl -X POST 'https://api.mtdevworks.com/api/tools/v1/gst-late-fee' \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: YOUR_API_KEY' \
  -d '{
    "return_type": "3B",
    "is_nil": false,
    "days_late": 12,
    "tax_liability": 25000,
    "annual_turnover": 12000000
  }'

Password Generator

curl -X POST 'https://api.mtdevworks.com/api/tools/v1/password' \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: YOUR_API_KEY' \
  -d '{
    "length": 16,
    "uppercase": true,
    "lowercase": true,
    "digits": true,
    "symbols": false,
    "exclude_ambiguous": true,
    "count": 2
  }'

JSON Validate Tool

curl -X POST 'https://api.mtdevworks.com/api/tools/v1/json/validate' \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: YOUR_API_KEY' \
  -d '{
    "input": "{"name":"mtdevworks","ok":true}"
  }'

Core Endpoints

POST /api/tools/v1/gst-late-fee

Calculate GST late fee and interest

POST /api/tools/v1/password

Generate configurable strong passwords

POST /api/tools/v1/json/validate

Validate JSON input quickly

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