Every tool works over MCP (https://aipaygen.com/mcp) and HTTP (GET with query parameters or POST with a JSON body to /v1/<tool>).
Send Authorization: Bearer apg_… to pay from prepaid credits. Create a key with POST /v1/keys. Without a key, paid endpoints answer 402 Payment Required with a PAYMENT-REQUIRED header (x402 v2). Retry with a PAYMENT-SIGNATURE header; the receipt comes back in PAYMENT-RESPONSE. Over MCP, the payment goes in _meta["x402/payment"].
Successful responses look like {"tool": "...", "data": {...}, "receipt": {...}}. Errors look like {"error": {"code": "...", "message": "..."}}.
dns_lookupResolve DNS records for a domain (A, AAAA, CNAME, MX, NS, TXT, SOA, CAA) and identify its DNS host and email provider.
Price $0.001 · cached up to 5 min
GET https://aipaygen.com/v1/dns_lookup?domain=stripe.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. stripe.com"
},
"types": {
"description": "Record types to fetch. Defaults to A, AAAA, MX, NS, TXT.",
"type": "array",
"items": {
"type": "string",
"enum": [
"A",
"AAAA",
"CNAME",
"MX",
"NS",
"TXT",
"SOA",
"CAA"
]
}
}
},
"required": [
"domain"
],
"additionalProperties": false
}security_headersGrade a website's HTTP security headers (HSTS, CSP, X-Frame-Options, Referrer-Policy and more) A-F, list what is missing, and flag exposed server version info.
Price $0.001 · cached up to 30 min
GET https://aipaygen.com/v1/security_headers?url=https%3A%2F%2Fvercel.com{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Website URL or domain, e.g. https://example.com"
}
},
"required": [
"url"
],
"additionalProperties": false
}domain_whoisLook up who registered a domain and when: registrar, creation and expiry dates, domain age, status codes, nameservers and DNSSEC, via RDAP (the modern WHOIS).
Price $0.002 · cached up to 1440 min
GET https://aipaygen.com/v1/domain_whois?domain=openai.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. openai.com"
}
},
"required": [
"domain"
],
"additionalProperties": false
}email_securityAudit a domain's email security: SPF, DMARC policy, DKIM keys, MX/email provider, MTA-STS, TLS-RPT and BIMI, with an A-F grade, a spoofability verdict and plain-English issues.
Price $0.002 · cached up to 30 min
GET https://aipaygen.com/v1/email_security?domain=github.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. github.com"
}
},
"required": [
"domain"
],
"additionalProperties": false
}site_metadataExtract a website's title, description, language, social profiles, public contact emails and phones, key pages (contact, pricing, careers, docs), RSS feeds and schema.org organization data.
Price $0.002 · cached up to 360 min
GET https://aipaygen.com/v1/site_metadata?url=https%3A%2F%2Fwww.notion.so{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Website URL or domain, e.g. notion.so"
}
},
"required": [
"url"
],
"additionalProperties": false
}page_to_markdownFetch a web page and return its main content as clean Markdown (navigation, ads, scripts and cookie banners removed), ready for an LLM to read.
Price $0.002 · cached up to 60 min
GET https://aipaygen.com/v1/page_to_markdown?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FModel_Context_Protocol{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Page URL, e.g. https://blog.cloudflare.com"
},
"max_chars": {
"description": "Maximum Markdown length. Default 20000.",
"type": "integer",
"minimum": 1000,
"maximum": 100000
}
},
"required": [
"url"
],
"additionalProperties": false
}ssl_certificatesCheck a domain's TLS certificates from Certificate Transparency logs: current certificate, issuer, days until expiry, and every subdomain that has appeared on a certificate.
Price $0.003 · cached up to 360 min
GET https://aipaygen.com/v1/ssl_certificates?domain=shopify.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. shopify.com"
}
},
"required": [
"domain"
],
"additionalProperties": false
}tech_stackDetect what a website is built with: framework, CMS or site builder, hosting/CDN, web server, analytics, ad pixels, payments, chat, auth and more (90+ technologies), with the evidence for each.
Price $0.003 · cached up to 720 min
GET https://aipaygen.com/v1/tech_stack?url=https%3A%2F%2Flinear.app{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "Website URL or domain, e.g. linear.app"
}
},
"required": [
"url"
],
"additionalProperties": false
}company_profileBuild a company profile from just a domain: name, description, logo, location, social profiles, public contact info, domain age, email and hosting providers, key tech stack, and business signals (takes payments, hiring, runs ads...). One call instead of six.
Price $0.01 · cached up to 720 min
GET https://aipaygen.com/v1/company_profile?domain=figma.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Company domain, e.g. figma.com"
}
},
"required": [
"domain"
],
"additionalProperties": false
}domain_reportEverything about a domain in one call: DNS, registration, certificates and subdomains, email security grade, HTTP security headers grade, tech stack and website metadata, plus an overall summary.
Price $0.02 · cached up to 360 min
GET https://aipaygen.com/v1/domain_report?domain=cloudflare.com{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name, e.g. cloudflare.com"
}
},
"required": [
"domain"
],
"additionalProperties": false
}