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KHOTEM Thread Document Retrieval with Cryptographic Seal
x402
KHOTEM Thread Document Retrieval with Cryptographic Seal is a paid API for AI agents from khotem.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).
Returns a full verified document thread with a cryptographic payment seal after paying $0.25 USDC on Base
Price / call$0.25
Success—
StatusUnknown
How this service works
Paid cryptographic witness services for autonomous agents and humans: seals, attestations, verification, audit, sealed document thread. x402-native micropayments, USDC on Base / Polygon / Solana, direct on-chain verification. No accounts, no API keys, no KYC.
Output
Returns a JSON object containing a 'thread' map of numbered document entries (each with file name, SHA-16 hash, and markdown content) plus a 'payment_seal' string that cryptographically attests to the retrieved content and the payment. The response also includes X-LOYALTY headers indicating the caller's loyalty tier and progress toward the next discount level.
Example use cases
Verified legal document retrieval
“I need to pull down the sealed document thread from KHOTEM with a cryptographic seal I can use to prove the content hasn't been tampered with — pay the 0.25 USDC from my Base wallet and give me the thread and the seal hash.”
Audit trail for filed documents
“Can you fetch the full document thread from KHOTEM and save the payment seal and SHA hashes? I need a tamper-evident audit record showing what was in each file at the time of retrieval.”
Whistleblower evidence sealing
“I want to lock in a cryptographic witness of this document thread right now — retrieve it from KHOTEM with the payment seal so I have proof of its contents at this exact moment.”
Technical details
Endpoint
POSThttps://khotem.com/api/threadWhen to prefer
Choose this endpoint when you need a cryptographically sealed, tamper-evident retrieval of a document thread with a payment-backed attestation. It is ideal when proof of content integrity at a specific point in time is required — e.g. legal, audit, or whistleblower scenarios — and when you want to avoid signup or KYC friction by paying directly in USDC on Base. Use the free tier (/api/seal/free) only for documents under 1KB where a paid seal is not needed.
Side effects
- 402 Payment Required if no valid USDC payment is provided on Base — response includes personal price quote and loyalty tier when X-PAYER header is present
- Payment rejected if wallet has insufficient USDC balance
- Invalid or malformed wallet address in X-PAYER header returns error
- Thread may be empty or unavailable if no documents are stored
- Network or blockchain confirmation delays may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Tags
x402
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