calldata-decode

Decode EVM smart-contract transaction calldata into the function name and typed parameters.

Decode EVM smart-contract transaction calldata into the function name and typed parameters. Supply an ABI (from /api/contract-abi) or a signature like transfer(address,uint256) for a fully offline decode; with neither, the 4-byte selector is resolved via the openchain.xyz signature database (4byte.directory fallback) and each candidate signature is tried. Unknown selectors return a documented partial decode (selector + raw 32-byte words) instead of an error.

UNRATEDListed

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?

0x77065d81…16744121

URL

https://agent402.tools/api/calldata-decode

MCP server on this host: io.github.MikeyPetrillo/agent402

Seen

first 29 days ago · last 10 hr ago

53 free handshakes

Payment

Pays through

x402 · MPP evm, tempo

Offered on?

algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC, Solana, stellar:pubnet, Tempo USDC.e

Listed on?

Polygon, Arbitrum, Avalanche, Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.803 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.197: 0.077 uncertain ? + 0.119 short ? · 0.097 to A

How the composite of 0.803 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	0.40	0.370		0.074	−0.119	−0.006
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		0.803	gap to 1.000 = 0.197 · 0.119 short · 0.077 uncertain	0.803	−0.119	−0.077

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

The multiplication, written out

  0.200 × 0.370   latency p95    
+ 0.600 × 0.882   liveness       
+ 0.200 × 1.000   price stability
= 0.803           → UNRATED: 52 of 30 paid calls      weights 2026.09.6 · 52 samples · seed cap_01M1RD9ADSPCBTAH00JYM5JDXP|2026-09-03T05:28:40.764Z|2026.09.6

Verify it yourselfnpx teppi-check https://agent402.tools/api/calldata-decodecurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD9ADSPCBTAH00JYM5JDXP