api.402.coffee

ERC-8004

API scores wallet trustworthiness via x402 payment history and offers conformance testing for micropayment client implementations.

developer_tool

from$0.1

Trust signal

Established4444/ 100

4 of 4 pillars

coverage 100%

Pillars

Traction

50%

Liveness

82%

Identity

Longevity

20%

Signals

On-chain settlement (CDP)

Active in last 30 days

Endpoint reachable

GitHub org present

X (Twitter) handle

.well-known/agent.json

skill.md published

ERC-8004 registered

Evidence tiers, not an endorsement · trust model v0.1.0 (provisional) · CDP-lane settlement only (D3) · Trust API coming soon

On-chain traction

Min price (402)$0.1

Total vol$17.70

Total tx37

30d vol$17.70

30d tx37

FirstJun 17, 2026

LastJul 9, 2026

ERC-8004 agent registry

Verified agent

agent id

56900

chain

Identity & classification

Domain402.coffee

Xunverified

GitHubunverified

ENSunverified

Category confidenceunscored

Settlement volume

loading chart…

Buyer distribution

Buyer overview

Unique buyers (total)14

Buyers 30d14

Top-5 share75.7%

Volume concentration

Top buyer 45%2nd–5th 31%6th–10th 19%Rest 5%

Top buyers (up to 10)▸ expand

Address

Volume · Tx · Active

10x9952…6f34

$8.00

9 tx

Jun 21, 2026 – Jun 21, 2026

20x27ec…5803

$2.30

7 tx

Jul 3, 2026 – Jul 3, 2026

30x254a…d091

$1.10

2 tx

Jun 17, 2026 – Jun 17, 2026

40x01a6…1346

$1.00

2 tx

Jul 9, 2026 – Jul 9, 2026

50x0fa7…55ad

$1.00

2 tx

Jun 23, 2026 – Jun 23, 2026

60xe5c3…700f

$1.00

1 tx

Jun 25, 2026 – Jun 25, 2026

70x8345…5fd7

$0.75

2 tx

Jun 28, 2026 – Jun 28, 2026

80x1fdb…4634

$0.60

6 tx

Jun 17, 2026 – Jun 17, 2026

90x3f52…3a8f

$0.50

1 tx

Jun 24, 2026 – Jun 24, 2026

100x4985…5ce2

$0.50

1 tx

Jul 7, 2026 – Jul 7, 2026

L0 settlement lanes (CDP + facilitator-first); x402x lane excluded · buyer coverage limited to indexed L0 lanes — totals above may include settlement without buyer attribution

Endpoints(7)

POSThttps://api.402.coffee/order/espresso

Espresso — one shot, settled on Base.

$0.100 USDCpay_to unverifiedunreachableJul 6

https://api.402.coffee/score

Agent risk score — deterministic 0–100 trust summary of a wallet's observed x402 payment behaviour (conformance certs + public chain facts). For sellers, wallets & marketplaces. Body: {"wallet":"0x…"}.

$0.100 USDCpay_to unverifiedunreachableJul 6

POSThttps://api.402.coffee/test/basic

x402 client conformance — basic. Pay to certify your agent can complete a real x402 payment; get a public certificate + README badge.

$0.250 USDCpay_to unverifiedunreachableJul 6

POSThttps://api.402.coffee/test/recipient/start

x402 client conformance — recipient-awareness (entry). Opens a test that swaps the payment recipient to see if your agent notices who it's paying.

$0.500 USDCpay_to unverifiedlive · 6313msJul 6

POSThttps://api.402.coffee/test/scam/start

x402 client conformance — scam-resistance (entry). Opens a test that offers your agent an over-priced order to see if it refuses.

$0.500 USDCpay_to unverifiedlive · 6198msJul 6

POSThttps://api.402.coffee/order/flat-white

Flat White — plus a fortune from the barista.

$1.000 USDCpay_to unverifiedlive · 6125msJul 6

POSThttps://api.402.coffee/test/suite

x402 client conformance — full suite. Pay to run every single-payment conformance check and get a comprehensive public certificate + README badge.

$5.000 USDCpay_to unverifiedlive · 6078msJul 6