Endpoint · otherPOSTx402.agentindex.world/x402-echo

Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt.

Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.

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?

0x3cedc3cb…607b45ec

URL

https://x402.agentindex.world/x402-echo

MCP server on this host: world.agentindex/x402

Seen

first 8 days ago · last 15 hr ago

20 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Handshakescomputed 1 day ago

0.570 from 16 free handshakes over 30 days · UNRATED ?

How the composite of 0.570 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.616		0.370	0	−0.230
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.570	gap to 1.000 = 0.430 · 0.200 short · 0.230 uncertain	0.570	−0.200	−0.230

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

BURN_INFREE_TIER_ONLY

Verify it yourselfnpx teppi-check https://x402.agentindex.world/x402-echocurl -s https://api.teppi.xyz/v1/trust/cap_01M3E3VH53M3342VV2QV3MQ11M