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SiteCheck Contact Enrichment API
x402
SiteCheck Contact Enrichment API is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Looks up contact and company information (emails, social profiles, tech stack) for a given website domain
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call tools for AI agents: image generation, speech-to-text, text-to-speech, embeddings, LLM chat, website audits and contact enrichment. Payment: x402, USDC on Base. No signup, no API key.
Output
Returns a JSON object with the company name, domain, an array of email addresses (with a flag indicating if the email matches the domain), detected technology stack (e.g. Cloudflare), and social media profile URLs (e.g. LinkedIn).
Example use cases
Lead enrichment for sales outreach
“I have a list of prospect websites — start with stripe.com. Can you look up their contact emails, LinkedIn profile, and what technologies they use so I can add it to my CRM?”
Finding press contact for a media pitch
“I need to pitch a story to the team at ghost.org — can you find their contact email or social media handles from their website?”
Competitor tech stack research
“Can you check what technologies linear.app is running and whether there's a public contact email listed on their domain?”
Technical details
Endpoint
GEThttps://api.sitecheck-api.workers.dev/api/contacts?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, no-signup contact and company enrichment for a known domain — especially useful in lead generation, sales prospecting, or competitive research workflows where you need emails, social links, and tech stack in a single call. Prefer it over manual scraping or heavier data enrichment APIs when cost-efficiency ($0.01/call) and zero-credential setup matter.
Side effects
- Domain not found or unreachable — may return empty or partial results
- No publicly discoverable emails — emails array will be empty
- No social profiles found — socials object will be empty or missing keys
- Invalid URL input — may return an error or empty response
- Rate limiting or payment failure via x402 — call does not complete
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "Plausible Analytics",
"tech": [
"Cloudflare"
],
"domain": "plausible.io",
"emails": [
{
"email": "hello@plausible.io",
"sameDomain": true
}
],
"socials": {
"linkedin": "https://linkedin.com/company/plausible-analytics/"
}
}
}Tags
x402
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