Signal Ledger Research API
Analyze financial-report text against an auditable issuer-risk checklist plus a separately scored, video-derived data-quality layer covering period integrity, metric basis, missing fields, outliers, update lag, cross-source checks, revisions and units.
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 0.25 USDC on Base to 0x7AAC…5C6b0. The signed payment is good for 5 minutes.
- Paid to
- 0x7AAC…5C6b0
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 250000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x7AAC1ccE7113306c7af59F82637d0A38B3e5C6b0",
"amount": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"company": "Example Corp",
"reportText": "Example Corp reported revenue growth of 12%. Operating cash flow declined 28% while net income increased 9%. The company disclosed higher short-term debt and refinancing needs. Gross margin improved by two percentage points. This sample is long enough to demonstrate the expected request body for the paid financial-report risk-check endpoint.",
"sourceContext": {
"sourceName": "Exchange filing",
"metricBasis": "Reported, full-year",
"publishedAt": "2026-03-20T08:00:00Z",
"retrievedAt": "2026-03-20T08:05:00Z",
"reportPeriod": "FY2025",
"crossCheckedSources": [
"Exchange filing",
"Company IR"
]
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"check": {
"risks": [
{
"item": "经营现金流弱于利润",
"category": "现金流风险",
"evidence": "经营活动现金流净额下降 28%",
"severity": "中等"
}
],
"company": "Example Corp",
"positives": [],
"risk_level": "medium",
"risk_score": 35,
"data_quality": {
"level": "good",
"score": 85,
"unknown_count": 3,
"warning_count": 1,
"knowledge_version": "video-data-quality-v1",
"analysis_confidence": "medium"
}
},
"schema_version": "2026-09-01"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"reportText"
],
"properties": {
"company": {
"type": "string",
"maxLength": 120,
"description": "Optional company name"
},
"reportText": {
"type": "string",
"maxLength": 100000,
"minLength": 200,
"description": "Plain-text financial report supplied by the caller"
},
"sourceContext": {
"type": "object",
"properties": {
"sourceName": {
"type": "string",
"maxLength": 160
},
"metricBasis": {
"type": "string",
"maxLength": 160
},
"publishedAt": {
"type": "string",
"maxLength": 40,
"description": "ISO 8601 publication timestamp"
},
"retrievedAt": {
"type": "string",
"maxLength": 40,
"description": "ISO 8601 retrieval timestamp"
},
"reportPeriod": {
"type": "string",
"maxLength": 160
},
"crossCheckedSources": {
"type": "array",
"items": {
"type": "string",
"maxLength": 120
},
"maxItems": 5
}
},
"description": "Optional provenance metadata used for report-period, freshness, metric-basis and cross-source checks",
"additionalProperties": false
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "signal_ledger",
"s": [
"cdp_sdk_server"
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {}
}Provenance
- Seen in the source catalog
- 2026-09-09 15:14Z
- Last indexed by Roundhouse
- 2026-09-10 12:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 22:15Z
- x402 version
- 2
- Max timeout
- 300s
- 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. 3 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 Signal Ledger Research API 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=Signal%20Ledger%20Research%20API' 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://dragon7.space/v1/filings/risk-check, 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.