- Endpoint
https://api.x402dataapi.com/health- Price
- Free
X402 Data API Docs
Endpoint-level documentation for humans and agents: inputs, outputs, errors and x402 payment examples.
Agent entrypointsUse JSON first; HTML pages are only the human-readable layer.
capabilities.jsonpricing.jsonllms.txt- Endpoint
https://api.x402dataapi.com/pricing- Price
- Free
- Endpoint
https://api.x402dataapi.com/capabilities- Price
- Free
POST
Domain Intelligence
Paid x402 API for AI agents that returns domain intelligence, DNS lookup data, domain risk signals, security posture, WHOIS-like technical data, mail security, TLS, HTTP headers, fingerprinting and AI agent domain analysis for a public domain.
- Endpoint
https://api.x402dataapi.com/v1/domain-intel- Price
- 0.002 USDC
POST
TLS Report
Paid x402 API for AI agents that checks TLS certificate health, SSL report data, HTTPS certificate expiration, issuer, validity, SAN coverage, chain health, HTTPS readiness and certificate risk for a public hostname.
- Endpoint
https://api.x402dataapi.com/v1/tls-report- Price
- 0.001 USDC
POST
Mail Security
Paid x402 API for AI agents that checks MX records, SPF, DMARC, email security, phishing risk, domain mail configuration and anti-spoofing posture for a public domain.
- Endpoint
https://api.x402dataapi.com/v1/mail-security- Price
- 0.001 USDC
POST
HTTP Security Headers
Paid x402 API for AI agents that audits HTTP security headers, HSTS, Content-Security-Policy, X-Frame-Options, Referrer-Policy, Permissions-Policy and web security scan findings for a public URL.
- Endpoint
https://api.x402dataapi.com/v1/http-security- Price
- 0.002 USDC
POST
Agent Accessibility Check
Paid x402 API for AI agents that checks robots.txt, sitemap availability, llms.txt discovery, AI crawler readiness, agent accessibility and AI scraping compatibility for a public URL.
- Endpoint
https://api.x402dataapi.com/v1/agent-accessibility- Price
- 0.001 USDC
POST
Full Domain Report
Paid x402 API for AI agents that returns a complete domain security report with DNS, TLS, mail security, HTTP headers, AI accessibility, website risk score and consolidated remediation issues for a public domain.
- Endpoint
https://api.x402dataapi.com/v1/full-domain-report- Price
- 0.0001 USDC
GUIDE
Domain Intelligence API
Paid x402 API for AI agents that returns domain intelligence, DNS lookup data, domain risk signals, security posture, WHOIS-like technical data, mail security, TLS, HTTP headers, fingerprinting and AI agent domain analysis for a public domain.
- Markdown
- Open .md
- Intent
- x402 domain intelligence API, AI agent domain data API, domain security posture API, domain risk API, DNS lookup paid API
GUIDE
TLS Report API
Paid x402 API for AI agents that checks TLS certificate health, SSL report data, HTTPS certificate expiration, issuer, validity, SAN coverage, chain health, HTTPS readiness and certificate risk for a public hostname.
- Markdown
- Open .md
- Intent
- x402 TLS certificate API, SSL report API for agents, HTTPS certificate expiration API, public hostname TLS audit
GUIDE
Mail Security API
Paid x402 API for AI agents that checks MX records, SPF, DMARC, email security, phishing risk, domain mail configuration and anti-spoofing posture for a public domain.
- Markdown
- Open .md
- Intent
- x402 mail security API, SPF DMARC MX API, domain email security API, anti spoofing domain API
GUIDE
HTTP Security Headers API
Paid x402 API for AI agents that audits HTTP security headers, HSTS, Content-Security-Policy, X-Frame-Options, Referrer-Policy, Permissions-Policy and web security scan findings for a public URL.
- Markdown
- Open .md
- Intent
- x402 security headers API, HTTP security headers API, HSTS CSP scanner API, web security scan API
GUIDE
Agent Accessibility Check API
Paid x402 API for AI agents that checks robots.txt, sitemap availability, llms.txt discovery, AI crawler readiness, agent accessibility and AI scraping compatibility for a public URL.
- Markdown
- Open .md
- Intent
- robots.txt sitemap llms.txt API, agent accessibility checker API, AI crawler readiness API, AI scraping compatibility API
GUIDE
Full Domain Report API
Paid x402 API for AI agents that returns a complete domain security report with DNS, TLS, mail security, HTTP headers, AI accessibility, website risk score and consolidated remediation issues for a public domain.
- Markdown
- Open .md
- Intent
- domain security report API, complete domain security report API, pay per request API for agents, Base USDC x402 API
GUIDE
Robots, Sitemap and llms.txt API
Agent-readable API documentation for checking robots.txt, sitemap discovery, llms.txt availability, AI crawler readiness and AI scraping compatibility.
- Markdown
- Open .md
- Intent
- robots.txt sitemap llms.txt API, AI crawler readiness, agent accessibility checker API
GUIDE
x402 Paid API for AI Agents
How autonomous agents can discover X402 Data API resources, inspect prices and schemas, pay per request in USDC on Base, and call JSON endpoints.
- Markdown
- Open .md
- Intent
- paid API for AI agents, pay per request API for agents, Base USDC x402 API
GUIDE
How AI Agents Can Pay for Domain Data
A practical guide for AI agents that need domain intelligence, TLS reports, mail security, HTTP security headers and accessibility checks through x402 payments.
- Markdown
- Open .md
- Intent
- AI agent domain data API, x402 domain intelligence API, how agents pay for domain data
Unsigned request
curl -X POST https://api.x402dataapi.com/v1/domain-intel \
-H "Content-Type: application/json" \
-d '{"domain":"example.com"}'Signed request
curl -X POST https://api.x402dataapi.com/v1/domain-intel \
-H "Content-Type: application/json" \
-H "PAYMENT-SIGNATURE: <x402-payment-payload>" \
-d '{"domain":"example.com"}'