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Synapse Contract Analysis
x402
Synapse Contract Analysis is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Analyzes smart contracts or legal contract documents to extract key terms, parties, dates, and amounts
Price / call$0.003
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
Returns a JSON object containing extracted contract metadata including the contract date, monetary amount (e.g. 'USD 50,000'), and a list of named parties (e.g. ['Acme', 'Beta']).
Example use cases
Smart contract audit summary
“Pull up the key details from this smart contract — who the parties are, when it was signed, and what amounts are involved so I can review before signing.”
Legal document due diligence
“I have a contract between Acme Corp and Beta Inc dated March 2024 for $50,000 — can you extract all the key terms, parties, and financial details from it?”
Automated contract data extraction
“For each contract in my deal pipeline, extract the party names, effective dates, and dollar amounts so I can populate my CRM.”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/contract-analysis?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a low-cost, no-account-required way to extract structured metadata (parties, dates, amounts) from contracts and want to pay per call in USDC without managing API keys. Best for lightweight contract parsing tasks rather than deep legal analysis.
Side effects
- Missing required 'input' parameter returns validation error
- Unsupported HTTP method (POST/PUT) returns 400 or 405
- Unrecognized or malformed contract input returns empty or partial extraction
- Payment failure via x402 returns 402 Payment Required
- Network timeout if contract document is large or slow to retrieve
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "2024-03-01",
"amount": "USD 50,000",
"parties": [
"Acme",
"Beta"
]
}
}Tags
x402
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