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Synapse API — Sonic Token Transfers
x402
Synapse API — Sonic Token Transfers 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).
Retrieves token transfer history for a given wallet address on the Sonic blockchain network, with filtering by block range, contract addresses, and pagination.
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
A list of token transfer records for the specified wallet on Sonic, each containing transfer details such as sender, recipient, token contract, amount, block number, and transaction hash, paginated by a page key for continuation.
Example use cases
Audit wallet token activity
“Show me all token transfers for Sonic address 0xAbC123... from block 500000 to 1000000, sorted oldest to newest, up to 100 results.”
Track specific token contract transfers
“Get me all transfers involving the token contract 0xDef456... for wallet 0xAbC123... on Sonic, sorted descending, limit 25.”
Paginate through full transfer history
“Continue fetching token transfer history for Sonic wallet 0xAbC123... using the page key 'abc-page-key-xyz', up to 50 more results in ascending order.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/sonic/token/transfersWhen to prefer
Choose this endpoint when you need to fetch historical token transfer data specifically on the Sonic blockchain network, with the ability to filter by wallet address, block range, and token contract. Prefer this over generic blockchain explorers when you need programmatic, paginated access with pay-per-call pricing and no subscription required.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Block range out of bounds or non-existent blocks may return empty results
- Invalid contract address format causes request rejection
- Payment not fulfilled via x402 results in 402 Payment Required response
- Rate limits or overload may cause timeouts or 5xx errors
- Invalid pageKey may cause pagination failure or duplicate results
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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