Introduction¶

Welcome to the Toolkit API documentation. Our platform offers a suite of specialised APIs designed for developers who need reliable, well-documented endpoints for common tasks — from DNS lookups and image processing to email validation and PDF manipulation.

Overview¶

Toolkit API is organised into focused toolkits, each serving a specific domain. The overview below is generated from the cached OpenAPI snapshot used by the app:

Toolkit	Description	Endpoints
DNS Toolkit	Domain, DNS, WHOIS, IP & SSL intelligence	50+
Dev Toolkit	Developer utilities — formatting, encoding, hashing	74
Web Scraping Toolkit	Structured data extraction optimised for LLMs	8
Image Toolkit	Resize, convert, compress & manipulate images	26
Geo & Location Toolkit	IP geolocation, distance, timezone lookups	10
Email Toolkit	Deep email validation & deliverability scoring	13
PDF Toolkit	Merge, split, compress & convert PDFs	12
Auth & Security Toolkit	Hashing, encryption, JWT & TOTP utilities	14
SEO Toolkit	Full website audit — performance, meta, links	12
File & Convert Toolkit	Universal format conversion	18
QR & Barcode Toolkit	Generate, decode & style QR codes and barcodes	10
Webhook Toolkit	RequestBin-as-a-service — capture, inspect, replay	10
Text Analysis Toolkit	Readability, similarity, language detection & more	9
YouTube Intelligence Toolkit	YouTube transcripts, metadata, and discovery endpoints	9
Analytics API	Query any CSV, JSON, or Parquet file with natural language	8

Key Features¶

Single API key — One key works across all toolkits
Consistent design — Every endpoint follows the same request/response patterns
No rate surprises — Transparent rate limits on every plan
Fast responses — Sub-100ms for most endpoints, globally distributed
Comprehensive errors — Structured JSON error responses with actionable messages

Getting an API Key¶

All requests require authentication. To get started:

Subscribe to any toolkit on RapidAPI
Your API key is generated automatically
Include the key in every request via the X-API-Key header

curl -H "X-API-Key: YOUR_KEY" https://dns.toolkitapi.io/v1/status

Tip

Start with the Free tier on any toolkit to explore the endpoints before committing to a paid plan.

Base URLs¶

Each toolkit lives on its own subdomain:

https://dns.toolkitapi.io/v1/...
https://dev.toolkitapi.io/v1/...
https://scrape.toolkitapi.io/v1/...
https://image.toolkitapi.io/v1/...
https://geo.toolkitapi.io/v1/...
https://email.toolkitapi.io/v1/...
https://pdf.toolkitapi.io/v1/...
https://auth.toolkitapi.io/v1/...
https://convert.toolkitapi.io/v1/...
https://barcode.toolkitapi.io/v1/...
https://webhook.toolkitapi.io/v1/...
https://textanalysis.toolkitapi.io/v1/...
https://analytics.toolkitapi.io/v1/...
https://youtube.toolkitapi.io/v1/...

Path shape can differ by toolkit. For example, DNS lookup is /v1/lookup while Geo IP lookup is /v1/geo/ip-lookup.

Response Format¶

All endpoints return JSON. Successful responses always include the requested data at the top level:

{
  "domain": "toolkitapi.io",
  "records": [
    {"type": "A", "value": "93.184.216.34", "ttl": 3600}
  ]
}

Error responses use standard HTTP status codes with a detail message:

{
  "detail": "Invalid domain format"
}

Quick Start