ToolkitAPI — Go SDK

Official Go SDK for ToolkitAPI.io — a family of focused HTTP APIs covering DNS, email, images, PDFs, scraping, AI-powered text tools, barcodes, media extraction, webhooks, and more.

Installation

go get github.com/toolkitapi/go-sdk

Requires Go 1.21+.

Quick start

package main

import (
	"fmt"
	toolkitapi "github.com/toolkitapi/go-sdk"
)

func main() {
	client := toolkitapi.NewClient("https://toolkitapi.io", "tk_live_...")

	// DNS lookup
	result, err := client.Dns.Lookup(map[string]interface{}{
		"domain": "example.com",
	})
	if err != nil {
		panic(err)
	}
	fmt.Println(result)

	// Readability analysis
	score, err := client.Textanalysis.Readability(map[string]interface{}{
		"text": "The quick brown fox jumps over the lazy dog.",
	})
	if err != nil {
		panic(err)
	}
	fmt.Println(score)
}

Toolkits

Field	Highlights
Analytics	Query CSV/JSON/Parquet data with natural language
Auth	JWT create/decode, TOTP, OAuth helpers, API-key generation
Barcode	Barcode and QR code generation and decoding
Convert	Format (JSON/YAML/CSV/XML) and unit conversions
Devtools	JSON/YAML/XML validators, regex tester, UUID, hashing, fake data
Dns	DNS records, WHOIS, propagation, email auth, typosquat, SSL certs
Email	Validation, deliverability, disposable detection, SPF/DMARC
Geo	IP geolocation, reverse geocoding, distance/bearing, timezone
Image	Resize, convert, optimise, analyse, remove background
Media	YouTube metadata/transcripts, universal media extraction
Pdf	Generate, merge, split, extract, stamp, protect
Scrape	Web scraping, readability, meta, SEO audits, broken-link checks
Textanalysis	Readability, PII masking, profanity, similarity, summarize, language
Webhook	Request bins, HTTP mocks, replay captured requests

Full endpoint reference at https://toolkitapi.io/docs.

Authentication

Every request is authenticated via the X-API-Key header. Pass your key as the second argument to NewClient.

Get your API key at https://toolkitapi.io/account/signup.

Error handling

All toolkit methods return an (interface{}, error) pair. Network errors and non-2xx HTTP responses are returned as the error value.

result, err := client.Dns.Lookup(map[string]interface{}{
    "domain": "example.com",
})
if err != nil {
    log.Fatalf("lookup failed: %v", err)
}

License

MIT