Endpoint · evidencePOSTapi.delx.ai /api/v1/x402/live-probe
Verify any third-party x402 endpoint is alive and correctly configured before paying it: a bounded GET/402 preflight fetches the payment contract, checks reachability and response…
Read more
Verify any third-party x402 endpoint is alive and correctly configured before paying it: a bounded GET/402 preflight fetches the payment contract, checks reachability and response latency, validates accepts, network, price and expiry against the x402 spec, and returns a signed observation receipt with an observed_at timestamp you can cite — protection against ghost endpoints, dead quotes and wasted USDC. Limitation: no payment is made, one endpoint per call, and a passing probe proves the contr…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.delx.ai/api/v1/x402/live-probe
MCP server on this host: io.github.davidmosiah/delx-mcp-a2a
Seen
first 34 days ago · last 17 days ago
48 free handshakes
Payment
Pays through
x402 · MPP tempo
Offered on?
Base USDC, Solana, Tempo USDC.e
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.4
UN
RATED
RATED
0.723 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.277: 0.077 uncertain ? + 0.200 short ? · 0.077 to B
| 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 | 0.872 | 0.523 | 0 | −0.077 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.723 | gap to 1.000 = 0.277 · 0.200 short · 0.077 uncertain | 0.723 | −0.200 | −0.077 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.872 liveness
+ 0.200 × 1.000 price stability
= 0.723 → UNRATED: 48 of 30 paid calls weights 2026.09.4 · 48 samples · seed cap_01M1A5QD5RD55H6D7DGM1WJB8H|2026-08-25T22:42:28.238Z|2026.09.4
Verify it yourself
npx teppi-check https://api.delx.ai/api/v1/x402/live-probecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QD5RD55H6D7DGM1WJB8H