x402 merchant
DubbleBlack$0.10 / callagents.dubbleblack.com
Commerce-intelligenceRecommendationsBehavioral-evidenceShopping

Returns ranked products with evidence scores, confidence bands, and provenance metadata for a vertical, an optional category, and a natural language purchase intent. Supports budget, brand, and product ID filters. When observations are too sparse to support a confident recommendation, the API returns HTTP 200 with an empty results array and insufficient_evidence set to true. It never fabricates results.

MerchantReport

DubbleBlack

0x8c69b13769ca7033145cedbf463a7fe1368537d1Explorer
Inbound volume
$3.10↑ 360%
Last 7d vs prior 7d
Settlements
31↑ 360%
Last 7d vs prior 7d
7
Distinct counterparties

Chains: Base (31)

Funds flow over time

Activity

MarAprMayJunJulAug
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xcaa2…e16b$0.00$1.101117m agoGraph
0x81d7…d0b0$0.00$0.6068h agoGraph
0x051b…da22$0.00$0.5054d agoGraph
0x2d75…c9ea$0.00$0.3035d agoGraph
0x0a71…76a5$0.00$0.3036d agoGraph
0xa525…c6c5$0.00$0.2025d agoGraph
0x1f32…4a62$0.00$0.1016d 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 observed activity.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase17m ago0x531bc5…897a52
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase19m ago0xc5f402…677af6
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase20m ago0x1d5cb0…5af695
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase2h ago0x700b15…d60a4e
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase2h ago0x4681dd…1cc195
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase2h ago0x886968…a72b55
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase3h ago0x83f888…550302
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase3h ago0xe80a54…14b158
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase3h ago0x547b7e…957124
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase3h ago0x76183e…d7f3f7
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase8h ago0xf2dea6…344ed3
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase9h ago0x57ac1a…4c53f9
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase9h ago0x0bf9d1…dbe28c
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase22h ago0x6631ec…e79da9
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase22h ago0xae8e53…3c65dc
0x81d7…d0b0DubbleBlackBase$0.10100%coinbase1d ago0x0f89ab…9318c0
0xcaa2…e16bDubbleBlackBase$0.10100%coinbase1d ago0xcbbc09…7ae7c1
0x051b…da22DubbleBlackBase$0.10100%coinbase4d ago0x97f7ad…830202
0x051b…da22DubbleBlackBase$0.10100%coinbase4d ago0xf32638…07996c
0x051b…da22DubbleBlackBase$0.10100%coinbase4d ago0x8625f5…95d6f0
0x051b…da22DubbleBlackBase$0.10100%coinbase4d ago0x82ceca…e0b534
0x051b…da22DubbleBlackBase$0.10100%coinbase4d ago0xa46773…542bf1
0xa525…c6c5DubbleBlackBase$0.10100%coinbase5d ago0xab5607…b0c41d
0x2d75…c9eaDubbleBlackBase$0.10100%coinbase5d ago0x1c7a44…c62430
0x2d75…c9eaDubbleBlackBase$0.10100%coinbase5d ago0x60b9fe…5d3042

Hand this page to an agent

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

GET www.roundhouse.studio/api/v0/merchants/0x8c69b13769ca7033145cedbf463a7fe1368537d1

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: 0x8c69b13769ca7033145cedbf463a7fe1368537d1

curl -s 'https://www.roundhouse.studio/api/v0/merchants/0x8c69b13769ca7033145cedbf463a7fe1368537d1'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x8c69b13769ca7033145cedbf463a7fe1368537d1/settlements?limit=50'

If you do not have Roundhouse tools or skills installed, read
https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.