Endpoint · inferencePOSTapi.xfuel.app /v1/chat/completions
Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party.
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Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.xfuel.app/v1/chat/completions
Seen
first 35 days ago · last 17 hr ago
78 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.747 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.253: 0.053 uncertain ? + 0.200 short ? · 0.053 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 | 0.911 | 0.547 | 0 | −0.053 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.747 | gap to 1.000 = 0.253 · 0.200 short · 0.053 uncertain | 0.747 | −0.200 | −0.053 |
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 × 0.911 liveness
+ 0.200 × 1.000 price stability
= 0.747 → UNRATED: 69 of 30 paid calls weights 2026.09.6 · 69 samples · seed cap_01M1A59MTZZ56YASAMWQA5FWKE|2026-09-02T13:13:06.006Z|2026.09.6
Verify it yourself
npx teppi-check https://api.xfuel.app/v1/chat/completionscurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59MTZZ56YASAMWQA5FWKE