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Ysaere Agent Text Record
x402
Ysaere Agent Text Record is a paid API for AI agents from api.ysaere.com, paid per call via x402, $0.3/call, status unknown (last checked 2026-10-30).
Stores up to 64 KB of text as a tamper-evident evidence record, generating a signed receipt and a record image for later verification.
Price / call$0.3
Success—
StatusUnknown
How this service works
Ysaere Agent Text Record — $0.30 USDC, no account needed. Input: {"text":"the exact text to keep"}. Stores those bytes and a record image, then returns a signed receipt. Read the bytes with the receipt. Empty text is refused. No payment was taken until the text is accepted. The image is a record of the bytes, not a painting of a page. Wallet only. No account price.
Output
A signed receipt that cryptographically references the stored bytes, plus a record image representing the stored content. The receipt can be used later to retrieve and verify the exact text that was stored. Payment of $0.30 USDC is only charged once the text is accepted (non-empty input required).
Example use cases
Notarize a contract clause
“Store this exact clause from our vendor agreement and give me a signed receipt: 'Vendor agrees to deliver software by September 30, 2025, or a 10% penalty applies.' I need proof this wording existed today.”
Archive a whistleblower statement
“I need to create a tamper-evident record of this statement before I submit it: 'On March 12, I witnessed the CFO instruct staff to backdate invoices.' Store it and return a receipt I can use to prove its contents later.”
Preserve AI-generated output for audit
“Record this AI-generated compliance summary verbatim so our audit team can verify it wasn't altered afterward: 'Risk assessment complete. No critical findings. Reviewed 1,240 transactions on 2025-06-01.' Give me the signed receipt.”
Technical details
Endpoint
POSThttps://api.ysaere.com/v1/notary/record-text?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a durable, signed evidence record of text content — not just storage, but a verifiable receipt that proves the bytes existed and were accepted at a specific time. Prefer this over simple object storage when tamper-evidence, receipt-based retrieval, or notarization semantics matter. The $0.30 price point (vs $0.02 for a stamp) suggests this creates a more robust, retrievable record compared to the lightweight stamp endpoint.
Side effects
- Empty text input — request is refused and no payment is taken
- Text exceeds 64 KB limit — likely rejected
- Payment failure via x402 wallet — record not created
- Malformed JSON or missing 'text' field — request error
- Title exceeds 160 characters — may be truncated or rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text to store in the Evidence Record (up to 64 KB) |
| title | string | Optional document title (up to 160 chars) |
Tags
x402
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