address-type?address=string&chain=string

Detect whether an address is an EOA, generic contract, Gnosis Safe multisig, ERC20 token, ERC721 NFT or upgradeable proxy via on-chain probing, with an interaction hint - critical…

Detect whether an address is an EOA, generic contract, Gnosis Safe multisig, ERC20 token, ERC721 NFT or upgradeable proxy via on-chain probing, with an interaction hint - critical for agents because each type requires completely different handling before transacting. address type, is contract or eoa, multisig detection, safe wallet, contract type, eoa or contract Accepts payment on Base or Solana — either network works.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.006 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x4466d4a8…d6dd125e

URL

https://api.x402node.dev/chain/address-type?address=string&chain=string

Seen

first 35 days ago · last 16 days ago

48 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.4

UN
RATED

0.819 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.181: 0.085 uncertain ? + 0.096 short ? · 0.081 to A

How the composite of 0.819 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.52	0.487		0.097	−0.096	−0.006
liveness it answered at all	0.60	1.00	0.869		0.522	0	−0.078
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.819	gap to 1.000 = 0.181 · 0.096 short · 0.085 uncertain	0.819	−0.096	−0.085

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

The multiplication, written out

  0.200 × 0.487   latency p95    
+ 0.600 × 0.869   liveness       
+ 0.200 × 1.000   price stability
= 0.819           → UNRATED: 47 of 30 paid calls      weights 2026.09.4 · 47 samples · seed cap_01M1A5QH6BQRPEFVJRGY2G75P1|2026-08-25T12:07:50.153Z|2026.09.4

Verify it yourselfnpx teppi-check https://api.x402node.dev/chain/address-type?address=string&chain=stringcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QH6BQRPEFVJRGY2G75P1