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Paddock Circular Signal — AI Agent Commerce Self-Funding Detection
x402
Paddock Circular Signal — AI Agent Commerce Self-Funding Detection is a paid API for AI agents from paddock.finance, paid per call via x402, $0.99/call, status unknown (last checked 2026-10-31).
Returns facilitator-level data detecting circular/self-funding payment patterns in AI agent commerce, including cluster volume, self-funding percentage, and flagged share of listed endpoints.
Price / call$0.99
Success—
StatusUnknown
How this service works
Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_circular_signal reports the wash and circular-settlement signal per facilitator: flagged clusters, flagged volume and share, and the detection date.
Output
A JSON object containing a list of facilitators, each with: trend (e.g. stable), facilitator name, cluster count, self-funding percentage, cluster volume in USD for 7d and 30d windows, external payer count, and flagged share of listed percentage. Also includes the methodology version used.
Example use cases
Detecting wash trading in agent payments
“Check the Paddock circular signal over the past 30 days and tell me which facilitators look like they're mostly paying themselves — I want the self-funding percentage and flagged share for each one.”
Weekly market integrity snapshot
“Get me the 7-day circular signal from Paddock so I can see if any facilitators have suspicious cluster volumes or zero external payers this week.”
Due diligence on a specific facilitator
“I'm evaluating Meridian as a facilitator — can you pull the Paddock circular signal for the last 30 days and show me their cluster count, self-funding rate, and whether their volume looks organic?”
Technical details
Endpoint
GEThttps://paddock.finance/api/paddock/mcp/circular-signal?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to assess payment integrity, detect self-dealing or circular transaction patterns, or audit facilitators in the AI agent commerce ecosystem. Prefer this over generic analytics endpoints when the specific question is about whether payment volume is organic vs. self-funded, or when flagging suspicious cluster behavior across facilitators.
Side effects
- Invalid window parameter (must be '7d' or '30d') returns a validation error
- Payment not included or insufficient (x402 protocol) returns 402 Payment Required
- Endpoint unavailable or data not yet computed returns 503 or empty response
- Malformed input object missing required 'type' or 'method' fields returns schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tool": "get_circular_signal",
"facilitators": [
{
"trend": "stable",
"facilitator": "meridian",
"cluster_count": 2,
"self_funding_pct": 100,
"cluster_volume_usd": {
"d7": 41203.84,
"d30": 215915.91
},
"external_payer_count": 0,
"flagged_share_of_listed_pct": 1.06
}
],
"methodology_version": "v0.1"
}
}Tags
x402
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