Endpoint · onchainGETapi.arysphere.com /v1/ventures/x402_chain_reads_v1/base_erc20_balanceof ?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Base ERC-20 token balance of a holder address.
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Base ERC-20 token balance of a holder address. ERC-20 balance read on Base: takes token (ERC-20 contract, 0x + 40 hex) and address (holder, 0x + 40 hex) and returns that holder's balanceOf as read from the token contract.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_erc20_balanceof?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
MCP server on this host: com.arysphere/arysphere-x402
Seen
first 6 days ago · last 14 hr ago
7 free handshakes
Payment
Pays through
x402
Offered on?
Polygon, Arbitrum, Base USDC
Listed on?
Polygon, Arbitrum, Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.404 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 0.596: 0.526 uncertain ? + 0.070 short ? · 0.046 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.123 | 0.074 | 0 | −0.526 | |
| latency p95 it answered as fast as its class |
0.20 | 0.65 | 0.651 | 0.130 | −0.070 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.404 | gap to 1.000 = 0.596 · 0.070 short · 0.526 uncertain | 0.404 | −0.070 | −0.526 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.123 liveness
+ 0.200 × 0.651 latency p95
+ 0.200 × 1.000 price stability
= 0.404 → UNRATED: 7 of 30 paid calls weights 2026.09.6 · 7 samples · seed cap_01M546CNGCM2DS7HK2VV5PSA0E|2026-09-23T03:00:47.566Z|2026.09.6
Verify it yourself
npx teppi-check https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_erc20_balanceof?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913curl -s https://api.teppi.xyz/v1/trust/cap_01M546CNGCM2DS7HK2VV5PSA0E