StableJack
StableJack is an AI investment copilot that helps investors research markets, monitor portfolios, generate reports, discover opportunities, automate investment workflows and trade with AI-powered insights.
SearchLiveeip155:8453Exactvia cdp
Market-newsCryptoMacroTradingAgentic-api
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$11.00
Verified settled volume
220 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-11 16:13Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x68b7E8Be8f1a62f99e37f1Ac191dd23486e8A2ADThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
0.05USDC≈ $0.05 USD
on Base · exact scheme
Pay 0.05 USDC on Base to 0x68b7…8A2AD. The signed payment is good for 2 minutes.
- Paid to
- 0x68b7…8A2AD
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 50000 smallest units
50000units
on Polygon · exact scheme
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
- 0x68b7…8A2AD
- Token contract
- 0x3c49…c3359
- Payment window
- 2 minutes
50000units
on Arbitrum · exact scheme
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
- 0x68b7…8A2AD
- Token contract
- 0xaf88…e5831
- Payment window
- 2 minutes
50000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
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
- 7V5ri9…iE4mJ
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x68b7E8Be8f1a62f99e37f1Ac191dd23486e8A2AD",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x68b7E8Be8f1a62f99e37f1Ac191dd23486e8A2AD",
"amount": "50000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x68b7E8Be8f1a62f99e37f1Ac191dd23486e8A2AD",
"amount": "50000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"payTo": "7V5ri9UPkeAEXrZdaMfK5bbXX4Xy1BqJpN1JYYLiE4mJ",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"focus": "BTC, ETH, SOL ETFs and market structure",
"region": "global",
"markets": [
"crypto_majors"
],
"timeWindow": "24h"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"scope": "Crypto majors · BTC, ETH, SOL ETFs and market structure · last 24h · global",
"stories": [
{
"why": "Explains the market relevance in one sentence.",
"rank": 1,
"title": "Example market-moving story",
"source": {
"url": "https://example.com",
"label": "Source label",
"timestamp": "2026-06-26T00:00:00.000Z"
},
"negativeAssets": [
"ETH"
],
"positiveAssets": [
"BTC"
],
"summarySegments": [
{
"bold": true,
"text": "A concise source-grounded summary segment."
}
]
}
],
"generatedAt": "2026-06-26T00:00:00.000Z"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"markets",
"timeWindow",
"region"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 1000
},
"region": {
"enum": [
"global",
"us",
"europe",
"asia"
],
"type": "string"
},
"markets": {
"type": "array",
"items": {
"enum": [
"us_equities",
"crypto_majors",
"defi_onchain",
"macro_cross_asset"
],
"type": "string"
},
"minItems": 1
},
"timeWindow": {
"enum": [
"24h",
"3d",
"7d"
],
"type": "string"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"scope",
"stories"
],
"properties": {
"scope": {
"type": "string",
"maxLength": 220,
"minLength": 1
},
"stories": {
"type": "array",
"items": {
"type": "object",
"required": [
"rank",
"title",
"summarySegments",
"positiveAssets",
"negativeAssets",
"why",
"source"
],
"properties": {
"why": {
"type": "string",
"maxLength": 500,
"minLength": 1
},
"rank": {
"type": "integer",
"maximum": 99,
"minimum": 1
},
"title": {
"type": "string",
"maxLength": 220,
"minLength": 1
},
"source": {
"type": "object",
"required": [
"label"
],
"properties": {
"url": {
"type": "string",
"maxLength": 500,
"minLength": 1
},
"label": {
"type": "string",
"maxLength": 180,
"minLength": 1
},
"timestamp": {
"type": "string",
"maxLength": 80,
"minLength": 1
}
},
"additionalProperties": false
},
"negativeAssets": {
"type": "array",
"items": {
"type": "string",
"maxLength": 80,
"minLength": 1
},
"maxItems": 8
},
"positiveAssets": {
"type": "array",
"items": {
"type": "string",
"maxLength": 80,
"minLength": 1
},
"maxItems": 8
},
"summarySegments": {
"type": "array",
"items": {
"type": "object",
"required": [
"text"
],
"properties": {
"bold": {
"type": "boolean"
},
"text": {
"type": "string",
"maxLength": 600,
"minLength": 1
}
},
"additionalProperties": false
},
"maxItems": 24,
"minItems": 1
}
},
"additionalProperties": false
},
"maxItems": 5,
"minItems": 1
},
"generatedAt": {
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-11 16:13Z
- Last indexed by Roundhouse
- 2026-09-10 16:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 01:45Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 404
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. 18 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 StableJack 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=StableJack' 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://ai.stable-jack.com/x402/market-news/brief, 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. 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.