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Synapse API — X Layer Token Transfer History
x402
Synapse API — X Layer 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 2026-09-13).
Retrieves token transfer history for a given wallet address on the X Layer 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 records for the specified wallet on X Layer, including transaction hashes, block numbers, sender/recipient addresses, token contract addresses, amounts, and pagination metadata for continued queries.
Example use cases
Audit wallet token activity
“Show me all token transfers in and out of wallet 0xAbC123...def on X Layer between block 2000000 and 2500000, sorted from oldest to newest, up to 50 results.”
Track specific ERC-20 contract transfers
“Fetch all transfers for the token contract 0xToken123...abc on X Layer for wallet 0xWallet456...def — I want descending order and a max of 25 results.”
Paginate large transfer history
“Continue fetching token transfers for 0xMyWallet...999 on X Layer from where we left off — use pageKey 'abc123xyz' and get the next 100 records in ascending order.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/xlayer/token/transfersWhen to prefer
Use this endpoint when you need on-chain token transfer history specifically on the X Layer network. It supports block-range filtering, contract address filtering, pagination, and sort order, making it suitable for auditing, portfolio tracking, or DeFi analytics on X Layer. Prefer this over generic blockchain explorers when you need programmatic, paginated access with pay-per-call pricing.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Block range too large may result in timeout or truncated response
- Unknown or unsupported contract address returns empty transfers array
- Invalid pageKey causes pagination error
- Missing required owner field results in 400 bad request
- Network congestion or indexer lag may return stale or incomplete data
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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