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Synapse API — Polygon Transaction History
x402
Synapse API — Polygon Transaction 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 2026-09-14).
Retrieves paginated transaction history for addresses on the Polygon 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 paginated list of asset transfers on the Polygon network matching the specified filters, including transaction hashes, block numbers, from/to addresses, asset categories, values, and optionally full transaction metadata. A pageKey is returned when more results are available for subsequent pagination calls.
Example use cases
Wallet audit for compliance review
“Get me the full transaction history for Polygon wallet 0xAbCd...1234 in ascending order from block 40000000 to 45000000, include metadata, and exclude zero-value transfers.”
Portfolio tracker refresh
“Fetch the 50 most recent asset transfers sent to my Polygon address 0xDeFg...5678, sorted descending, including ERC-20 and NFT categories.”
DeFi activity investigation
“Show me all Polygon transactions from address 0x1234...ABCD since block 50000000, paginate with up to 25 results per page and include full metadata.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/polygon/tx/historyWhen to prefer
Use this endpoint when you need historical on-chain transaction data for a specific address on the Polygon network, especially when you need filtering by block range, transaction category (ERC-20, NFT, internal, etc.), direction (from/to), or need paginated access to large transaction sets. Prefer this over Ethereum or other chain endpoints when the target wallet activity is on Polygon/MATIC specifically.
Side effects
- Invalid address format returns an error or empty result
- fromBlock/toBlock out of range or malformed causes query failure
- maxCount exceeding API limits may be capped or rejected
- Invalid category strings return no results or an error
- pageKey expiry causes pagination to fail with an error
- Network timeout if block range spans too many blocks
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| order | string | |
| pageKey | string | |
| toBlock | string | |
| category | array | |
| maxCount | number | |
| fromBlock | string | |
| toAddress | string | |
| fromAddress | string | |
| withMetadata | boolean | |
| excludeZeroValue | boolean |
Tags
x402
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