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
$111.78↓ 50%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
365↓ 29%
Last 7d vs prior 7d
35
Distinct counterparties
Over the whole indexed history

Received $111.78 of the $3064.22M Roundhouse has indexed across 1,399,483 wallets — less than 0.0001% of it.

Whole-history totals from the index rollup, which can be up to 30 minutes behind.

Chains (from the recent scan): Base (365)

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$107.055911d agoGraph
0x99c4…516f$0.00$2.088910d agoGraph
0xcb8c…c2c1$0.00$1.04206h agoGraph
0xc9c7…1670$0.00$0.485116h agoGraph
0xec2a…d034$0.00$0.332919d agoGraph
0x6a0b…4518$0.00$0.16932d agoGraph
0x53a1…4505$0.00$0.15511d agoGraph
0x54e1…f4e0$0.00$0.13222d 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 365 observed settlements.

Organic volume $111.78 of $111.78 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x6031…c2d1Horizon PulseBaseBase$0.002100%coinbase13d ago0xa6645b…e4774e
0xca1e…b80eHorizon PulseBaseBase$0.02100%coinbase14d ago0x82103e…f2cf9c
0x54e1…f4e0Horizon PulseBaseBase$0.005100%coinbase14d ago0x7b6522…0e28ef
0x54e1…f4e0Horizon PulseBaseBase$0.005100%coinbase14d ago0x0e9b3e…0cf3ee
0x54e1…f4e0Horizon PulseBaseBase$0.002100%coinbase14d ago0x9ffdd9…c83304
0x54e1…f4e0Horizon PulseBaseBase$0.002100%coinbase14d ago0x9d7651…ef0787
0x54e1…f4e0Horizon PulseBaseBase$0.01100%coinbase14d ago0x4b3296…b79f57
0x54e1…f4e0Horizon PulseBaseBase$0.03100%coinbase14d ago0x9cc65d…016c62
0x54e1…f4e0Horizon PulseBaseBase$0.01100%coinbase14d ago0xee5eb3…9ac70f
0x2465…a1b1Horizon PulseBaseBase$0.002100%coinbase14d ago0x7d9ac4…ddfe6b
0xb83b…75ccHorizon PulseBaseBase$0.002100%coinbase14d ago0xf02eb9…69a2d0
0xe827…50a0Horizon PulseBaseBase$0.002100%coinbase14d ago0x01b5f4…ea33bc
0x38b6…8b9fHorizon PulseBaseBase$0.002100%coinbase14d ago0x26c9bf…b20b64
0x2465…a1b1Horizon PulseBaseBase$0.002100%coinbase14d ago0x32f1b1…241a1f
0xb83b…75ccHorizon PulseBaseBase$0.002100%coinbase14d ago0x817337…d2e230
0xe827…50a0Horizon PulseBaseBase$0.002100%coinbase14d ago0xbdf549…bac511
0x38b6…8b9fHorizon PulseBaseBase$0.002100%coinbase14d ago0x15f546…2b02d1
0x2465…a1b1Horizon PulseBaseBase$0.002100%coinbase14d ago0x26d3a7…ea7000
0xb83b…75ccHorizon PulseBaseBase$0.002100%coinbase14d ago0xc152ae…24f3ea
0x2465…a1b1Horizon PulseBaseBase$0.002100%coinbase15d ago0x5fa812…62c81b
0xb83b…75ccHorizon PulseBaseBase$0.002100%coinbase15d ago0xbca7a2…da38f9
0x2465…a1b1Horizon PulseBaseBase$0.002100%coinbase15d ago0xb254c8…0ed900
0xe827…50a0Horizon PulseBaseBase$0.002100%coinbase15d ago0xeb49ca…92cf31
0x38b6…8b9fHorizon PulseBaseBase$0.002100%coinbase15d ago0x342149…ae1f0e
0xc9c7…1670Horizon PulseBaseBase$0.002100%coinbase15d ago0x2a4f73…0c1288

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.