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Synapse API — Unichain Token Transfer History
x402
Synapse API — Unichain Token Transfer History is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches paginated token transfer history for a given wallet address on the Unichain blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns a list of token transfer events for the specified wallet on Unichain, including transaction hashes, block numbers, token contract addresses, sender/receiver addresses, and amounts, along with a pagination key for fetching the next page of results.
Example use cases
Wallet token activity audit
“Show me all token transfers in and out of wallet 0xDEF...456 on Unichain — sort them newest first and give me up to 100 results.”
Portfolio tracker for specific tokens
“Get all transfers involving the USDC contract 0xA0b8...eB48 for my wallet 0x123...789 on Unichain so I can see my full USDC history there.”
Block-range forensic analysis
“I need to investigate token movements for address 0xABC...DEF on Unichain between block 5000000 and 5500000 — fetch all transfers in ascending order.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/unichain/token/transfersWhen to prefer
Choose this endpoint when you need on-chain token transfer history specifically for the Unichain network. It supports flexible filtering by block range, contract address, and sort order with pagination, making it well-suited for auditing, portfolio tracking, or forensic analysis on Unichain. Prefer this over general EVM explorers when you need programmatic, pay-per-call access without API key setup.
Side effects
- Invalid or malformed wallet address returns an error or empty result set
- Block range too large may result in timeout or truncated results
- Invalid pageKey causes pagination failure
- Unsupported contract address format returns validation error
- Rate limiting or payment failure (x402) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| order | string | |
| owner | string | |
| pageKey | string | |
| toBlock | string | |
| maxCount | number | |
| fromBlock | string | |
| contractAddresses | array |
Tags
x402
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