Horizon Pulse
Pay-per-call crypto market pulse and signals for AI agents via x402 on Base
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.002 USDC on Base to 0x5b32…be0e9. The signed payment is good for 5 minutes.
- Paid to
- 0x5b32…be0e9
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x5b32…be0e9
- Token contract
- 0x60a3…adb42
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- BjY98A…BTRPz
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- r3Fbir…6LQcf
- Token contract
- 524C55…00000
- Payment window
- 5 minutes
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x5b32…be0e9
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x60a3e35cc302bfa44cb288bc5a4f316fdb1adb42",
"extra": {
"name": "EURC",
"buffer": "1.01",
"pricing": "EURC amount = ceil(USD price / eurUsdRate * buffer), 6 decimals; fixed rate, no live FX",
"version": "2",
"rateDate": "2026-11-06",
"eurUsdRate": "1.1165",
"rateSource": "ECB euro reference rate"
},
"payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
"amount": "1810",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "BjY98A6dS3GGLZdz2zHy8wK7XAwnQgNhCc66mfmBTRPz",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "524C555344000000000000000000000000000000",
"extra": {
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"invoiceId": "6aeec2036e4491a341fb4f0b18be0c7c347ab97e7c0f94d57902823c",
"areFeesSponsored": false
},
"payTo": "r3FbirL83RAB2CwnUdxE5pCohMkuo6LQcf",
"amount": "0.002",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
"amount": "2000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"ok": true,
"asOf": "2026-10-01T14:36:44.639Z",
"ethUsd": 2699.12,
"networks": [
{
"ok": true,
"chainId": 8453,
"network": "base",
"timingHint": "normal",
"baseFeeGwei": "0.005",
"simpleTransfer": {
"costEth": "0.000000231",
"costUsd": 0.000623,
"costWei": "231000000000",
"gasLimit": 21000
},
"priorityFeeGwei": "0.001",
"suggestedMaxFeeGwei": "0.011",
"priorityFeePercentilesGwei": {
"p10": "0.000000079",
"p50": "0.001",
"p90": "0.01"
}
},
{
"ok": true,
"chainId": 1,
"network": "ethereum",
"timingHint": "expensive",
"baseFeeGwei": "0.47866594",
"simpleTransfer": {
"costEth": "0.000025243225938",
"costUsd": 0.068134,
"costWei": "25243225938000",
"gasLimit": 21000
},
"priorityFeeGwei": "0.244726498",
"suggestedMaxFeeGwei": "1.202058378",
"priorityFeePercentilesGwei": {
"p10": "0.001003273",
"p50": "0.244726498",
"p90": "2"
}
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"asOf": {
"type": "string"
},
"ethUsd": {
"type": "number"
},
"networks": {
"type": "array"
}
},
"description": "Horizon Pulse gas snapshot. The example is a trimmed real response recorded from GET /api/demo/gas at 2026-10-01T14:36Z UTC; live values differ on every call."
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-11-07 06:00Z
- Last indexed by Roundhouse
- 2026-11-09 11:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 13:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Horizon Pulse and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Horizon%20Pulse' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://horizonpulse.dev/api/gas, never from a cached figure, and pay with an x402 client. 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.