x402 merchant
Riddle Oracle$0.002 / callriddlex402.vercel.app
RiddlePuzzleFunText

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

MerchantReport

0x255c…387b

0x255cdb4e42afefc7120b0388eb78f96d996d387bExplorer
Received
$1.19↓ 18%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
599↓ 18%
Last 7d vs prior 7d
94
Distinct counterparties
Over the whole indexed history

Received $1.19 of the $258.60M Roundhouse has indexed across 713,391 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (599)

Funds flow over time

Activity

MarAprMayJunJulAugSep
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x8d2a…7d37$0.00$0.136617d agoGraph
0x17d5…34cc$0.00$0.03152d agoGraph
0x30ce…ca3b$0.00$0.03135d agoGraph
0xc7e2…6954$0.00$0.03137d agoGraph
0x7a7b…7393$0.00$0.031310d agoGraph
0x798d…116f$0.00$0.03137d agoGraph
0x28df…a2a7$0.00$0.02125d agoGraph
0x9903…cef5$0.00$0.021224d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

No concentration or self-dealing patterns detected in all 599 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x86a7…a8590x255c…387bBase$0.002100%coinbase16h ago0x55b6d6…926f8a
0xd9ec…145e0x255c…387bBase$0.002100%coinbase1d ago0x7ff88a…7d08ed
0x4c29…94940x255c…387bBase$0.002100%coinbase1d ago0xc99bc5…e50a1f
0x17d5…34cc0x255c…387bBase$0.002100%coinbase2d ago0x7173f4…0d1d93
0x9dc1…e94f0x255c…387bBase$0.002100%coinbase2d ago0xa1e349…1e552a
0x17d5…34cc0x255c…387bBase$0.002100%coinbase2d ago0xb92cdb…32f9da
0xc45a…491e0x255c…387bBase$0.002100%coinbase2d ago0x58e34c…2a6e5c
0xea96…d8500x255c…387bBase$0.002100%coinbase2d ago0xf75bf1…0fcfc7
0x01cd…1e090x255c…387bBase$0.002100%coinbase2d ago0xa14fb6…9a935d
nutelka.eth0x255c…387bBase$0.002100%coinbase4d ago0x29d4a8…a2283a
0xc45a…491e0x255c…387bBase$0.002100%coinbase5d ago0x30fabe…158de4
0x30ce…ca3b0x255c…387bBase$0.002100%coinbase5d ago0xd0ea28…c05782
0x3e06…16530x255c…387bBase$0.002100%coinbase5d ago0xcc7120…3ba785
0xbcda…dc4f0x255c…387bBase$0.002100%coinbase5d ago0x3ad03d…791c62
0x8481…81110x255c…387bBase$0.002100%coinbase5d ago0x3c2f99…375169
0x28df…a2a70x255c…387bBase$0.002100%coinbase5d ago0x12e787…3f33bc
0x5832…74e80x255c…387bBase$0.002100%coinbase5d ago0x762f02…573606
0x92c5…20030x255c…387bBase$0.002100%coinbase5d ago0x5baa14…cd99d6
0x30ce…ca3b0x255c…387bBase$0.002100%coinbase5d ago0x602a69…35a4d9
0xea96…d8500x255c…387bBase$0.002100%coinbase5d ago0xbea6f5…fe2274
0x4bd0…22ca0x255c…387bBase$0.002100%coinbase5d ago0x2b32be…19ad89
0x0145…ae880x255c…387bBase$0.002100%coinbase5d ago0xd0adcc…b7c939
0xc45a…491e0x255c…387bBase$0.002100%coinbase5d ago0x6c7565…4fa125
0x8ddc…75740x255c…387bBase$0.002100%coinbase5d ago0xcc502d…1ff436
0xd211…c87c0x255c…387bBase$0.002100%coinbase5d ago0x7beb30…29e7f7

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x255c…387b's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x255cdb4e42afefc7120b0388eb78f96d996d387b

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x255cdb4e42afefc7120b0388eb78f96d996d387b

curl -s 'https://api.roundhouseai.io/v0/merchants/0x255cdb4e42afefc7120b0388eb78f96d996d387b'
curl -s 'https://api.roundhouseai.io/v0/entities/0x255cdb4e42afefc7120b0388eb78f96d996d387b/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.