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Seiche Undertow Attested Feed
x402
Seiche Undertow Attested Feed is a paid API for AI agents from api.seiche.info, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Returns a real-time, cryptographically attested snapshot of global money-market conditions, FX references, capital-market stress tiers, and bounded China macro signals with explicit timestamps and rights metadata.
Price / call$0.25
Success—
StatusUnknown
How this service works
Seiche connects dollar funding, an 11-pack global money-market atlas, public FX references, bounded capital-market transmission and metadata-only China macro evidence with explicit clocks, rights and gaps.
Output
A JSON object with: an 'asof' date string, a 'board' object containing segment-level tier classifications (e.g. HY: STRAINED, UST: NORMAL), a 'service' label, an 'attestation' block with a how-to verification instruction, a pit_head hash, and a pqsig_root for post-quantum signature verification, plus a 'sealed_calls' array recording call IDs and cache outcomes (HIT/MISS).
Example use cases
Real-time credit stress monitoring
“Check the Seiche Undertow feed and tell me if the high-yield segment is currently STRAINED or NORMAL — I need to know before we execute any new bond purchases today.”
Verifiable macro snapshot for audit trail
“Fetch the latest attested Seiche macro intelligence feed and give me the pit-head hash and PQ signature root so our compliance team can verify the data provenance.”
Dollar funding and FX conditions briefing
“Give me a quick briefing from the Seiche Undertow feed on current global dollar funding conditions and where FX references stand as of today's date.”
Technical details
Endpoint
GEThttps://api.seiche.info/undertow/x402/feedWhen to prefer
Choose this endpoint when you need a cryptographically attested, point-in-time snapshot of global money-market stress tiers, FX references, and macro conditions — especially when verifiability and data provenance (via post-quantum signatures) matter. Prefer it over generic financial data APIs when you need explicit rights metadata, bounded China macro signals, and sealed call audit trails in a single call.
Side effects
- Payment not included or invalid — returns HTTP 402 requiring USDC payment via x402 protocol
- Malformed properties filter — may return empty or partial segment data
- Service temporarily unavailable — upstream data source lag may delay or block response
- Attestation generation failure — hash or signature fields may be null or incomplete
- Rate limiting — repeated calls in short succession may be throttled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"asof": "2026-07-18",
"board": {
"segments": {
"HY": {
"tier": "STRAINED"
},
"UST": {
"tier": "NORMAL"
}
}
},
"service": "undertow-attested-feed",
"attestation": {
"verify": {
"howto": "python3 scripts/verify_record.py"
},
"pit_head": {
"hash": "…"
},
"pqsig_root": {
"root": "…"
}
},
"sealed_calls": {
"calls": [
{
"id": "…",
"outcome": "HIT"
}
]
}
}
}Tags
x402
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