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
Inbound volume
$3.10↑ 446%
Last 7d vs prior 7d
Settlements
44↑ 114%
Last 7d vs prior 7d
13
Distinct counterparties

Chains: Base (44)

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
0xe004…8e2c$0.00$2.34151d agoGraph
0xeaf4…d5e2$0.00$0.34710d agoGraph
0xc533…2d7a$0.00$0.13722h agoGraph
0xeb76…0d35$0.00$0.06312h agoGraph
0xcddd…d122$0.00$0.0523d agoGraph
0x0f19…0a06$0.00$0.0422d agoGraph
0xaeda…5094$0.00$0.0324d agoGraph
0xa574…a1b1$0.00$0.0211d 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
0xeb76…0d350x276e…0cf2Base$0.02100%coinbase12h ago0xec8127…6601ba
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase22h ago0x0a0dab…1effd2
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase22h ago0xc126cc…072176
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase22h ago0x5d5978…142259
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase22h ago0x9d28b0…792d32
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase22h ago0xe011a6…40fc39
0xc533…2d7a0x276e…0cf2Base$0.01100%coinbase22h ago0x6879d1…6309d6
0xe004…8e2c0x276e…0cf2Base$0.10100%coinbase1d ago0xff3b7e…b7975a
0xeb76…0d350x276e…0cf2Base$0.02100%coinbase1d ago0xc4136b…aaa143
0xa574…a1b10x276e…0cf2Base$0.02100%coinbase1d ago0x7468d2…07d50e
0x1a0d…24fe0x276e…0cf2Base$0.02100%coinbase1d ago0x2748bb…503702
0x7eb6…5bcb0x276e…0cf2Base$0.02100%coinbase2d ago0x7d790b…3cd612
0x0f19…0a060x276e…0cf2Base$0.02100%coinbase2d ago0x223f0b…32e3c2
0xc533…2d7a0x276e…0cf2Base$0.02100%coinbase2d ago0x73e9e1…ad180c
0xcddd…d1220x276e…0cf2Base$0.02100%coinbase3d ago0xcd74a1…6ff4f7
0xe004…8e2c0x276e…0cf2Base$0.02100%coinbase3d ago0x0e7726…da7719
0xe004…8e2c0x276e…0cf2Base$0.02100%coinbase3d ago0x9d7ab8…8b6bee
0x0f19…0a060x276e…0cf2Base$0.02100%coinbase3d ago0xe9e9f4…6a84c4
0xeb76…0d350x276e…0cf2Base$0.02100%coinbase3d ago0x90614f…830822
0xe004…8e2c0x276e…0cf2Base$0.02100%coinbase4d ago0x08bad8…7f3595
0x6668…74260x276e…0cf2Base$0.01100%coinbase4d ago0x591346…090f2e
0xcddd…d1220x276e…0cf2Base$0.03100%coinbase4d ago0xa08a38…b21155
0xaeda…50940x276e…0cf2Base$0.01100%coinbase4d ago0xd76afb…6a46a4
0xaeda…50940x276e…0cf2Base$0.02100%coinbase4d ago0x49e524…595869
0xe004…8e2c0x276e…0cf2Base$1.00100%coinbase4d ago0x251164…c48dd9

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 www.roundhouse.studio/api/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://www.roundhouse.studio/api/v0/merchants/0x276efa09388fb1578a6c415b8f90d26fdfce0cf2'
curl -s 'https://www.roundhouse.studio/api/v0/entities/0x276efa09388fb1578a6c415b8f90d26fdfce0cf2/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.