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Synapse API — MegaETH Transaction History
x402
Synapse API — MegaETH 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 2026-09-16).
Retrieves paginated transaction history for addresses on the MegaETH blockchain network with filtering by block range, category, and address.
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 transactions matching the specified filters, each including transaction hash, block number, from/to addresses, value, category, and optionally full metadata. A pageKey is returned if more results are available.
Example use cases
Wallet audit for compliance review
“Get me all transactions sent from 0xDEAD...BEEF on MegaETH between block 1000000 and 2000000, including metadata, so I can audit the activity.”
NFT transfer tracking for a collector
“Show me all NFT transfers received by 0x1234...5678 on MegaETH, up to 25 results, ordered from newest to oldest — skip any zero-value transfers.”
DeFi portfolio reconciliation
“Fetch the full ERC-20 token transfer history for wallet 0xAABB...CCDD on MegaETH, paginated with a max of 100 entries, in ascending order so I can reconcile my DeFi positions.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/megaeth/tx/historyWhen to prefer
Use this endpoint when you specifically need transaction history on the MegaETH blockchain. It is ideal for wallets, portfolio trackers, compliance tools, or DeFi dashboards needing paginated, filterable on-chain history with block-range scoping and category filtering. Prefer this over generic Ethereum endpoints when your target chain is MegaETH.
Side effects
- Invalid address format returns a validation error
- Unsupported category value causes a 400 bad request
- fromBlock greater than toBlock returns an empty result or error
- Expired or invalid pageKey breaks pagination
- Rate limiting or payment failure (x402) returns a 402 response
- MegaETH node unavailability causes a 503 timeout
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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