x402 merchant
Federal Grant Search API$0.02 / callgrant-search.krimskrams.xyz

Search current U.S. Grants.gov opportunities by default, or set source=eu to search English EU Funding & Tenders topics with SEDIA status 31094502. Inputs are source, query, agency, statuses, limit, closing_within_days, and minimum_award_ceiling. Receive up to 20 normalized JSON records with title, agency, status, open and close dates, award amounts, eligibility, funding fields, and official_url.

MerchantReport

0x276e…0cf2

0x276efa09388fb1578a6c415b8f90d26fdfce0cf2Explorer
Received
$7.07↓ 100%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
75↓ 100%
Last 7d vs prior 7d
23
Distinct counterparties
Over the whole indexed history

Received $7.07 of the $258.60M Roundhouse has indexed across 713,391 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (75)

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
0xeaf4…d5e2$0.00$3.041434d agoGraph
0xe004…8e2c$0.00$2.462125d agoGraph
0x0213…c66c$0.00$0.40215d agoGraph
0x2d03…2c1a$0.00$0.40218d agoGraph
0xc533…2d7a$0.00$0.13724d agoGraph
0xc9c7…1670$0.00$0.10117d agoGraph
0x0eef…72a7$0.00$0.08418d agoGraph
0xeb76…0d35$0.00$0.06324d 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 75 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x902d…82560x276e…0cf2Base$0.02100%coinbase11d ago0xfd1621…b15862
0x902d…82560x276e…0cf2Base$0.02100%coinbase11d ago0x9dcb58…d1562a
0x94aa…02be0x276e…0cf2Base$0.02100%coinbase15d ago0x62f409…3fa7e9
0x0213…c66c0x276e…0cf2Base$0.20100%coinbase15d ago0xe17ae9…7163e8
0x0213…c66c0x276e…0cf2Base$0.20100%coinbase15d ago0xdf1e42…ec5108
0xe3ba…3fb30x276e…0cf2Base$0.01100%coinbase15d ago0x5e6184…b02cb7
0xe3ba…3fb30x276e…0cf2Base$0.02100%coinbase15d ago0x3a2d56…cbe854
0xe3ba…3fb30x276e…0cf2Base$0.02100%coinbase15d ago0x41d7f7…ce4580
0xc9c7…16700x276e…0cf2Base$0.10100%coinbase17d ago0x67d4c6…b82b32
0x4db7…02b70x276e…0cf2Base$0.02100%coinbase18d ago0x958343…536112
0x2d03…2c1a0x276e…0cf2Base$0.20100%coinbase18d ago0x7593a6…5747c0
0x2d03…2c1a0x276e…0cf2Base$0.20100%coinbase18d ago0x0a8aeb…c0b6c8
0x0eef…72a70x276e…0cf2Base$0.02100%coinbase18d ago0xc2a035…d102cb
0x0eef…72a70x276e…0cf2Base$0.02100%coinbase19d ago0x75b42a…a1f0c3
0x0eef…72a70x276e…0cf2Base$0.02100%coinbase19d ago0xd757df…473118
0x0eef…72a70x276e…0cf2Base$0.02100%coinbase19d ago0x7f1c73…944e6e
0x6777…39860x276e…0cf2Base$0.02100%coinbase20d ago0xc6bd56…5bf47f
0xeb76…0d350x276e…0cf2Base$0.02100%coinbase24d ago0xec8127…6601ba
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase24d ago0x0a0dab…1effd2
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase24d ago0xc126cc…072176
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase24d ago0x5d5978…142259
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase24d ago0x9d28b0…792d32
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase24d ago0xe011a6…40fc39
0xc533…2d7a0x276e…0cf2Base$0.01100%coinbase24d ago0x6879d1…6309d6
0xe004…8e2c0x276e…0cf2Base$0.10100%coinbase25d ago0xff3b7e…b7975a

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x276e…0cf2's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x276efa09388fb1578a6c415b8f90d26fdfce0cf2

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: 0x276efa09388fb1578a6c415b8f90d26fdfce0cf2

curl -s 'https://api.roundhouseai.io/v0/merchants/0x276efa09388fb1578a6c415b8f90d26fdfce0cf2'
curl -s 'https://api.roundhouseai.io/v0/entities/0x276efa09388fb1578a6c415b8f90d26fdfce0cf2/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.