TechLeads.fyi API

Base URL

All customer API calls use:

https://techleads.fyi/api/v3

Auth

Create a key in the dashboard (API Keys). Send it on every request:

Authorization: Bearer tl_your_key

Lookup one site

1 credit. Domain or full URL.

curl -s -H "Authorization: Bearer $TECHLEADS_API_KEY" \
  "https://techleads.fyi/api/v3/web/lookup?url=example.com"

Batch lookup

Up to 1,000 URLs. 1 credit each. Results return immediately.

curl -s -X POST -H "Authorization: Bearer $TECHLEADS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domains":["shopify.com","stripe.com"]}' \
  "https://techleads.fyi/api/v3/web/lookup/batch"

Account

Credits, email, and name (no credit cost):

curl -s -H "Authorization: Bearer $TECHLEADS_API_KEY" \
  "https://techleads.fyi/api/v3/account/info"

Response shape

{
  "technologies": [
    { "name": "Cloudflare", "categories": ["CDN"], "tag": "CDN", "confidence": 100 }
  ],
  "meta": { "credits_used": 1, "credits_remaining": 4999 }
}