x402 merchant
x-preflight$0.01 / callkevinhoff.com
XRankingPostsPreflightWriting

X Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are drawn from, how long it stays retrievable, which filters delete it, and which gates nobody can know in advance. Every claim cites a file and line in X's published source. Never writes the post. Nothing stored.

MerchantReport

0x3a72…d743

0x3a7292b88471691946d8d8856925e22246bed743Explorer
Received
$21.22↓ 100%
Last 7d vs prior 7d
Paid out
$1.00
Last 7d vs prior 7d
Settlements
90↓ 100%
Last 7d vs prior 7d
23
Distinct counterparties
Over the whole indexed history

Received $21.22 of the $258.60M Roundhouse has indexed across 713,391 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (89)

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
0x99fc…238d$0.00$18.624358d agoGraph
0x5e91…e1b3$0.00$1.00177d agoGraph
0xc125…75e5$0.00$0.191016d agoGraph
0x6fcd…d4c6$0.00$0.131416d agoGraph
0x3623…53b3$0.00$0.10134d agoGraph
0xe3ba…3fb3$0.00$0.0229d agoGraph
0x4a0b…f665$0.00$0.02292d agoGraph
0x7dd8…17d2$0.00$0.0117d agoGraph

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

Data quality

1 self-dealing settlement (payer = payee) observed; 88% of observed volume is with a single counterparty, in all 89 observed settlements.

Organic volume $20.22 of $21.22 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x7dd8…17d20x3a72…d743Base$0.01100%coinbase7d ago0x539ba8…1b0f1c
0xe3ba…3fb30x3a72…d743Base$0.01100%coinbase9d ago0x7ee3bf…1c4965
0xe3ba…3fb30x3a72…d743Base$0.01100%coinbase9d ago0x54f83a…1f31e8
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0xfac5ba…74ad7f
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0xc0674e…e20189
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0x8e7cea…7bb4f9
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0x733c45…8ab50a
0x6fcd…d4c60x3a72…d743Base$0.01100%coinbase16d ago0x6ded60…6beaff
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0xf1506d…1af5a7
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0x8f9e5a…ff2f06
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0x599a1a…ed41e5
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0xf78d0c…3c1954
0xc125…75e50x3a72…d743Base$0.01100%coinbase16d ago0x6cae89…83bfc1
0xc125…75e50x3a72…d743Base$0.10100%coinbase16d ago0x5360a3…5780ed
0x6fcd…d4c60x3a72…d743Base$0.01100%coinbase16d ago0xc5b13b…5e09c8
0x6fcd…d4c60x3a72…d743Base$0.01100%coinbase16d ago0x7637c4…39e026
0x3623…53b30x3a72…d743Base$0.10100%coinbase34d ago0xd2bea8…32cd3e
0x843b…c4a70x3a72…d743Base$0.01100%coinbase36d ago0xbee42d…a74b62
0xcd51…46a90x3a72…d743Base$0.01100%coinbase54d ago0x79897b…8c5a90
0x99fc…238d0x3a72…d743Base$0.10100%coinbase58d ago0x974110…f417f8
0xc47e…e8010x3a72…d743Base$0.01100%coinbase60d ago0xed6b41…87af08
0xb091…029b0x3a72…d743Base$0.001100%coinbase69d ago0xb728d8…a8bd36
0x99fc…238d0x3a72…d743Base$0.001100%coinbase69d ago0xb13783…2798c9
0x99fc…238d0x3a72…d743Base$0.001100%coinbase69d ago0x407417…d179db
0x99fc…238d0x3a72…d743Base$0.001100%coinbase69d ago0x9a8487…d96502

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x3a72…d743's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x3a7292b88471691946d8d8856925e22246bed743

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: 0x3a7292b88471691946d8d8856925e22246bed743

curl -s 'https://api.roundhouseai.io/v0/merchants/0x3a7292b88471691946d8d8856925e22246bed743'
curl -s 'https://api.roundhouseai.io/v0/entities/0x3a7292b88471691946d8d8856925e22246bed743/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.