Endpoint · market dataPOSTblockchain-api.x402-chain-tools.workers.dev /chain/balance
Get the native ETH balance of a Base address.
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://blockchain-api.x402-chain-tools.workers.dev/chain/balance
Seen
first 29 days ago · last 3 days ago
54 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
0.751 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.249: 0.103 uncertain ? + 0.146 short ? · 0.049 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.27 | 0.109 | 0.022 | −0.146 | −0.032 | |
| liveness it answered at all |
0.60 | 1.00 | 0.882 | 0.529 | 0 | −0.071 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.751 | gap to 1.000 = 0.249 · 0.146 short · 0.103 uncertain | 0.751 | −0.146 | −0.103 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.109 latency p95
+ 0.600 × 0.882 liveness
+ 0.200 × 1.000 price stability
= 0.751 → UNRATED: 52 of 30 paid calls weights 2026.09.6 · 52 samples · seed cap_01M1RD93X5F81X7Y2FNX0TRH2X|2026-09-03T03:21:57.983Z|2026.09.6
Verify it yourself
npx teppi-check https://blockchain-api.x402-chain-tools.workers.dev/chain/balancecurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD93X5F81X7Y2FNX0TRH2X