Domain Valuation API
Estimate the market value of any domain — powered by comparable sales and AI
api.robotdomainsearch.com/v1/valuation/{domain}
── How It Works ──
1
Submit a Domain
Pass any domain name to get a market value estimate
2
Get Valuation
Receive price range, confidence score, and valuation factors
3
Make Decisions
Use comparable sales and analysis for buying/selling
── Two Tiers ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Quick Tier — $0.02 Full Tier — $0.08 │ │ ────────────────── ───────────────── │ │ ✓ Price estimate (low/mid/high) ✓ Everything in Quick │ │ ✓ Confidence score ✓ Comparable sales data │ │ ✓ Valuation factors ✓ Detailed AI explanation │ │ ✓ Fast response ✓ Key factors breakdown │ │ │ │ Best for: bulk screening, Best for: purchase decisions, │ │ portfolio overview due diligence, pricing │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ Quick Tier — $0.02 │ │ ───────────────── │ │ ✓ Price estimate range │ │ ✓ Confidence score │ │ ✓ Valuation factors │ │ │ │ Full Tier — $0.08 │ │ ──────────────── │ │ ✓ Everything in Quick │ │ ✓ Comparable sales │ │ ✓ AI explanation │ │ ✓ Key factors breakdown │ │ │ └──────────────────────────────────┘
── Data Points Returned ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Price Estimate Low, mid, and high value range in USD │ │ Confidence 0.0–1.0 confidence score for the estimate │ │ Valuation Factors What drives the value (length, TLD, keywords, etc.) │ │ Comparable Sales Recent sales of similar domains (full tier) │ │ AI Explanation Detailed analysis of the valuation (full tier) │ │ Key Factors Structured domain attributes (full tier) │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ ▸ Price estimate (low/mid/high) │ │ ▸ Confidence score │ │ ▸ Valuation factors │ │ ▸ Comparable sales (full) │ │ ▸ AI explanation (full) │ │ ▸ Key factors (full) │ │ │ └──────────────────────────────────┘
── Pay Per Request ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Powered by x402 — the HTTP 402 payment standard │ │ │ │ 1. Make a request → get 402 with pricing │ │ 2. Sign USDC payment on Base │ │ 3. Retry with payment header → get valuation │ │ │ │ No API key. No subscription. Just pay per request with USDC. │ │ │ │ → Uses Coinbase x402 SDK for automatic payment handling │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ Powered by x402 │ │ │ │ 1. Request → 402 + pricing │ │ 2. Sign USDC on Base │ │ 3. Retry → get valuation │ │ │ │ No API key. No subscription. │ │ Pay per request with USDC. │ │ │ └──────────────────────────────────┘
── Use Cases ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Domain Investing Screen domains for value before purchasing │ │ Portfolio Mgmt Assess total portfolio value with bulk quick tier │ │ Negotiation Set asking/offer prices with data-backed estimates │ │ Due Diligence Full analysis before major domain acquisitions │ │ Market Research Track valuation trends across TLDs and categories │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ ▸ Domain investing │ │ ▸ Portfolio management │ │ ▸ Negotiation support │ │ ▸ Due diligence │ │ ▸ Market research │ │ │ └──────────────────────────────────┘
── Code Samples ──
# Quick valuation ($0.02)
$ curl "https://api.robotdomainsearch.com/v1/valuation/example.com"
# Full valuation with comparables ($0.08)
$ curl "https://api.robotdomainsearch.com/v1/valuation/example.com?tier=full"import requests
r = requests.get("https://api.robotdomainsearch.com/v1/valuation/example.com",
params={"tier": "full"})
data = r.json()
print(f"Domain: {data['domain']}")
print(f"Estimate: ${data['estimate']['low']:,} – ${data['estimate']['high']:,}")
print(f"Confidence: {data['confidence']:.0%}")
if data.get('comparables'):
for c in data['comparables']:
print(f" {c['domain']}: ${c['sale_price']:,}")const res = await fetch(
"https://api.robotdomainsearch.com/v1/valuation/example.com?tier=full"
);
const data = await res.json();
console.log(`Domain: ${data.domain}`);
console.log(`Estimate: $${data.estimate.low} – $${data.estimate.high}`);
console.log(`Confidence: ${(data.confidence * 100).toFixed(0)}%`);
data.comparables?.forEach(c =>
console.log(` ${c.domain}: $${c.sale_price} (${c.sale_date})`)
);── Related APIs ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ → Domain Availability API — Check if a domain is available │ │ → WHOIS Lookup API — Get registrar and expiry data │ │ → Aftermarket API — Check aftermarket listings and prices │ │ → Domain Intel API — Parked detection, screenshots, and more │ │ → Full API Reference — Complete /v1/valuation endpoint documentation │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
── Frequently Asked Questions ──
What is the Domain Valuation API?
RobotDomainSearch's Domain Valuation API estimates the market value of any domain name. It returns a price range (low/mid/high), confidence score, valuation factors, and — with the full tier — comparable sales data and a detailed AI-generated analysis.
What's the difference between quick and full tiers?
The quick tier ($0.02) returns a price estimate range, confidence score, and valuation factors. The full tier ($0.08) adds comparable sales data from public records, a detailed explanation of the valuation, and a structured breakdown of key domain attributes.
How does payment work?
The valuation endpoint uses x402 micropayments with USDC on Base. When you make a request, the API returns a 402 response with pricing details. Use the Coinbase x402 client SDK to handle payment automatically — no API key or subscription needed.
What factors affect domain valuation?
Key factors include domain length, TLD (.com commands highest prices), whether it's a dictionary word, search volume, brandability, and comparable aftermarket sales. Hyphens and numbers typically lower value.
How accurate are the valuations?
The API returns a confidence score (0-1) with each estimate. Scores above 0.7 indicate a reliable estimate. Domain valuation is inherently subjective, so the API provides a range rather than a single number.
Where does the comparable sales data come from?
Comparable sales are sourced from public domain sale records including NameBio and other aftermarket data providers. The full tier includes up to 5 relevant comparable sales with prices and dates.
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Ready to get started? │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ Ready to get started? │ │ │ └──────────────────────────────────┘