Endpoint · extractionPOSTdomain-availability-checker.underscoredone.com /check
Give this API up to 10 domain names and it tells you whether each has a registration record at the official registry.
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Give this API up to 10 domain names and it tells you whether each has a registration record at the official registry. It uses RDAP, the structured replacement for WHOIS, so there is no free-text parsing. Each domain comes back as 'registered', 'unregistered', or 'indeterminate' when the registry has no RDAP for that ending. 'Unregistered' means no record was found, which usually means available - but reserved and premium names also return no record. Registration status only; no pricing.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://domain-availability-checker.underscoredone.com/check
Seen
first 29 days ago · last 17 hr ago
54 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Handshakescomputed 1 day ago
0.730 from 53 free handshakes over 30 days · UNRATED ?
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 1.00 | 0.884 | 0.530 | 0 | −0.070 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.730 | gap to 1.000 = 0.270 · 0.200 short · 0.070 uncertain | 0.730 | −0.200 | −0.070 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
BURN_INFREE_TIER_ONLY
Verify it yourself
npx teppi-check https://domain-availability-checker.underscoredone.com/checkcurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD8D2SAA09PT2X6A34NA8C