Assay

Every paid API on Algorand, tested rather than listed.

861 x402 endpoints from 39 merchants across 46 hosts — each one called on a schedule to check it answers, that its 402 challenge parses, and that it charges what it advertises.

Endpoints live
773
Open defects
85
Overcharging
8
Paid calls
28,684
Last sweep
19h ago · 100% covered
Buyer reviews
none yet
8 endpoints charge more than they advertiseworst: api.micropay.website/api/v1/images/generations lists $0.01, demands $0.50 (50×)
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4 merchants · 21 endpoints

canix402-api.compx.io

Utilities14 endpoints

canix402 paid execution quote endpoint

100%live1,713paid calls9payers
$0.005 – $0.10
USDC
Verified14/14 answered · 19h ago

arbiter-mesh.gabrielaxy.workers.dev

Utilities1 endpoint

Adjudicate one agent job: validate the evidence envelope, convene the verifier quorum, and settle release-or-slash atomically

100%live29paid calls4payers
$0.005
USDC
Verified1/1 answered · 19h ago

validpay-production.up.railway.app

Utilities2 endpoints2 hosts

Open-Meteo proxy with JSON contract: invalid coordinates → settlement canceled (buyer not charged); valid coords → current temperature_2m + weather_code forecast JSON

100%live10paid calls3payers
$0.001
USDC
Verified2/2 answered · 20h ago

algo.ochinimus.app

Utilities4 endpoints

Forced liquidation volume for one symbol over a recent window, split by exchange and by whether longs or shorts were liquidated

100%live9paid calls3payers
$0.02 – $0.10
USDC
Verified4/4 answered · 20h ago