Endpoint · computeGETapi.x-402.online /v1/x402/inspect ?method=POST&url=https%3A%2F%2Fapi.x-402.online%2Fv1%2Fextract
Check that an x402 endpoint still returns a valid payment challenge, and read its price and recipient.
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Check that an x402 endpoint still returns a valid payment challenge, and read its price and recipient. Probe an x402 endpoint and report whether it still returns a valid payment challenge: HTTP status, challenge source (v2 header or legacy body), scheme, network, asset, payTo, amount in atomic units and in USDC, and a…Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.005 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.x-402.online/v1/x402/inspect?method=POST&url=https%3A%2F%2Fapi.x-402.online%2Fv1%2Fextract
MCP server on this host: online.x-402/mcp
Seen
first 9 days ago · last 19 hr ago
16 free handshakes
Payment
Pays through
x402 · MPP tempo
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.632 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.368: 0.284 uncertain ? + 0.084 short ? · 0.018 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.527 | 0.316 | 0 | −0.284 | |
| latency p95 it answered as fast as its class |
0.20 | 0.58 | 0.578 | 0.116 | −0.084 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.632 | gap to 1.000 = 0.368 · 0.084 short · 0.284 uncertain | 0.632 | −0.084 | −0.284 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.527 liveness
+ 0.200 × 0.578 latency p95
+ 0.200 × 1.000 price stability
= 0.632 → UNRATED: 13 of 30 paid calls weights 2026.09.6 · 13 samples · seed cap_01M3BHH8B9EA7B1P9GT6D428P7|2026-09-02T16:53:51.369Z|2026.09.6
Verify it yourself
npx teppi-check https://api.x-402.online/v1/x402/inspect?method=POST&url=https%3A%2F%2Fapi.x-402.online%2Fv1%2Fextractcurl -s https://api.teppi.xyz/v1/trust/cap_01M3BHH8B9EA7B1P9GT6D428P7