x402 merchant
Horizon Pulse$0.002 / callhorizonpulse.dev ↗
CryptoGas-feesBaseEthereumTransactions

Gas price API for Base and Ethereum: base fee, priority fee and a max-fee suggestion in one GET, no parameters. Returns JSON per network: baseFeeGwei, priorityFeeGwei (p50, with p10/p90), suggestedMaxFeeGwei (2x base + priority), timingHint (cheap/normal/expensive vs the last 20 blocks) and simpleTransfer cost in ETH and USD, plus ethUsd. From eth_feeHistory with eth_gasPrice fallback. Descriptive, not a forecast. Errors are not charged on Base (other rails may charge).

MerchantReport

Horizon Pulse

0x5b32c973596078a967562ca652761404f19be0e9Explorer
Received
$111.94↓ 44%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
378↓ 15%
Last 7d vs prior 7d
35
Distinct counterparties
Over the whole indexed history

Received $111.94 of the $3067.00M Roundhouse has indexed across 1,401,091 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (378)

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0xca1e…b80e$0.00$107.055912d agoGraph
0x99c4…516f$0.00$2.088910d agoGraph
0xcb8c…c2c1$0.00$1.11227h agoGraph
0xc9c7…1670$0.00$0.49535h agoGraph
0xec2a…d034$0.00$0.332919d agoGraph
0x54e1…f4e0$0.00$0.22319h agoGraph
0x6a0b…4518$0.00$0.16932d agoGraph
0x53a1…4505$0.00$0.15511d agoGraph

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

Data quality

96% of observed volume is with a single counterparty, in all 378 observed settlements.

Organic volume $111.94 of $111.94 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0xec2a…d034Horizon PulseBaseBase$0.03100%coinbase19d ago0xc3480b…f79dae
0xca1e…b80eHorizon PulseBaseBase$5.00100%coinbase19d ago0x1b16c8…f6856d
0xca1e…b80eHorizon PulseBaseBase$5.00100%coinbase20d ago0x43bb6c…df1355
0xca1e…b80eHorizon PulseBaseBase$0.002100%coinbase20d ago0xd90ca1…19f8a7
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase20d ago0x43a684…2dad6c
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase20d ago0xf9284c…eefe4b
0xca1e…b80eHorizon PulseBaseBase$0.002100%coinbase20d ago0x996f11…bb705a
0xca1e…b80eHorizon PulseBaseBase$0.03100%coinbase20d ago0x05d6c5…6a1c50
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase20d ago0xd379ae…98bc6e
0xec2a…d034Horizon PulseBaseBase$0.02100%coinbase20d ago0x54add8…eb1e4d
0xec2a…d034Horizon PulseBaseBase$0.02100%coinbase20d ago0x2645ea…1c4964
0xec2a…d034Horizon PulseBaseBase$0.03100%coinbase20d ago0xd7a607…5b88fd
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase20d ago0xdc14f6…30ce95
0xc9c7…1670Horizon PulseBaseBase$0.005100%coinbase20d ago0xbf9c53…676b34
0x3ed9…430eHorizon PulseBaseBase$0.02100%coinbase21d ago0x2ea837…513694
0xc9c7…1670Horizon PulseBaseBase$0.03100%coinbase21d ago0xb17b6d…268955
0xc9c7…1670Horizon PulseBaseBase$0.01100%coinbase21d ago0xbe019b…2219de
0xc9c7…1670Horizon PulseBaseBase$0.002100%coinbase21d ago0x7f431b…6736b6
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase21d ago0x0dc0cf…15b32d
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase21d ago0xb4c4f8…7c3828
0xca1e…b80eHorizon PulseBaseBase$1.00100%coinbase21d ago0x8134d1…0cedc0
0xec2a…d034Horizon PulseBaseBase$0.02100%coinbase21d ago0x725260…ac0c4b
0xec2a…d034Horizon PulseBaseBase$0.02100%coinbase21d ago0xa34ebe…1f8b60
0xec2a…d034Horizon PulseBaseBase$0.02100%coinbase21d ago0xcd9fb8…de9056
0xec2a…d034Horizon PulseBaseBase$0.03100%coinbase21d ago0xe4338e…56c703

Hand this page to an agent

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

GET api.roundhouseai.io/v0/merchants/0x5b32c973596078a967562ca652761404f19be0e9

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: 0x5b32c973596078a967562ca652761404f19be0e9

curl -s 'https://api.roundhouseai.io/v0/merchants/0x5b32c973596078a967562ca652761404f19be0e9'
curl -s 'https://api.roundhouseai.io/v0/entities/0x5b32c973596078a967562ca652761404f19be0e9/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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