erc20-allowance?chain=base&owner=0x000000000000000000000000000000000000dEaD&spender=0x4200000000000000000000000000000000000006&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Use when you need how much of an ERC-20 token a spender is approved to move from an owner, on Base, Ethereum, Arbitrum, Optimism or Polygon, via allowance(owner, spender).

Use when you need how much of an ERC-20 token a spender is approved to move from an owner, on Base, Ethereum, Arbitrum, Optimism or Polygon, via allowance(owner, spender). Returns raw units and decimal value.

UNRATEDListed

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?

0xad2294a0…b5c1a9a6

URL

https://biosfera.46-62-215-147.sslip.io/o/erc20-allowance?chain=base&owner=0x000000000000000000000000000000000000dEaD&spender=0x4200000000000000000000000000000000000006&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Seen

first 9 days ago · last 5 days ago

12 free handshakes

Payment

Pays through

x402

Offered on?

Polygon, Base USDC

Listed on?

Polygon, Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.203 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 0.797: 0.411 uncertain ? + 0.386 short ? · 0.247 to D

How the composite of 0.203 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.69	0.004		0.002	−0.187	−0.411
latency p95 it answered as fast as its class	0.20	0.00	0.005		0.001	−0.199	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.203	gap to 1.000 = 0.797 · 0.386 short · 0.411 uncertain	0.203	−0.386	−0.411

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.600 × 0.004   liveness       
+ 0.200 × 0.005   latency p95    
+ 0.200 × 1.000   price stability
= 0.203           → UNRATED: 10 of 30 paid calls      weights 2026.09.6 · 10 samples · seed cap_01M3BHH6Z0A377BEHA2CWAS7FK|2026-08-31T16:42:21.383Z|2026.09.6

Verify it yourself

npx teppi-check https://biosfera.46-62-215-147.sslip.io/o/erc20-allowance?chain=base&owner=0x000000000000000000000000000000000000dEaD&spender=0x4200000000000000000000000000000000000006&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

curl -s https://api.teppi.xyz/v1/trust/cap_01M3BHH6Z0A377BEHA2CWAS7FK