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CAPI2 Momentum Foundry – Evidence Pack
x402
CAPI2 Momentum Foundry – Evidence Pack is a paid API for AI agents from capi2-foundry.vandurmedries.workers.dev, paid per call via x402, $0.017/call, status unknown (last checked 2026-10-11).
Analyzes source text to extract and package an evidence pack, highlighting key findings around optional priority keywords, delivered after x402 micropayment settlement.
Price / call$0.017
Success—
StatusUnknown
How this service works
Paid agent utilities delivered after verified x402 settlement.
Output
A JSON object containing a 'result' field with the evidence pack analysis, a 'createdAt' timestamp, a 'productId' confirming the evidence-pack product, and a 'deliveryReceipt' object that includes the payer wallet address, a unique receipt ID, delivery timestamp, SHA-256 hashes of the input and result, the settlement amount in atomic units, and a signature hash — providing a cryptographically verifiable proof of delivery.
Example use cases
Legal clause evidence extraction
“I have this 20-page supplier agreement — can you extract an evidence pack from it focusing on the keywords 'force majeure', 'breach', and 'arbitration'? I need to know what the document actually says about those topics.”
Research document key findings
“Run an evidence pack analysis on this academic paper text and prioritize the terms 'clinical trial', 'placebo', and 'efficacy' so I can see all the relevant passages and findings packaged together.”
Compliance audit text review
“Can you examine this internal policy document and produce an evidence pack highlighting anything related to 'data retention', 'GDPR', and 'consent'? I need the result with a verifiable receipt for our audit trail.”
Technical details
Endpoint
POSThttps://capi2-foundry.vandurmedries.workers.dev/v1/products/evidence-pack/run?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a verifiable, receipt-backed evidence extraction from a large body of text, especially when an auditable proof-of-delivery (cryptographic hashes, payer address, signature) is required. Prefer it over generic summarization APIs when the output must be tied to a confirmed micropayment settlement and you need keyword-focused evidence packaging rather than a plain summary.
Side effects
- Payment not settled via x402 — returns 402 Payment Required before processing
- Text input empty or exceeds 100,000 character limit — returns 400 validation error
- Keywords array exceeds 20 items — returns 400 validation error
- Upstream worker timeout or crash — returns 500 with no receipt
- Malformed JSON body — returns 400 parse error
- x402 payment verification failure — request rejected without processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Source text to examine |
| keywords | array | Optional terms to prioritize |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"createdAt": "2026-09-23T00:00:00.000Z",
"productId": "evidence-pack",
"deliveryReceipt": {
"payer": "0x0000000000000000000000000000000000000000",
"productId": "evidence-pack",
"receiptId": "00000000-0000-4000-8000-000000000000",
"deliveredAt": "2026-09-23T00:00:00.000Z",
"inputSha256": "example-input-sha256",
"amountAtomic": "17000",
"resultSha256": "example-result-sha256",
"signatureSha256": "example-signature-sha256"
}
}
}Tags
x402
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