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Phantom API — SEI Transaction History
x402
Phantom API — SEI Transaction History is a paid API for AI agents from phantom-api-omega.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 SEI blockchain network, with filtering by block range, address, category, and metadata options.
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns a paginated list of SEI blockchain transactions matching the query filters, including transaction hashes, block numbers, sender/receiver addresses, values, categories, and optional metadata. A pageKey cursor is provided for fetching subsequent pages.
Example use cases
Wallet activity audit for SEI address
“Show me all transactions sent from SEI address sei1qwertyuiop to any recipient between blocks 1000000 and 2000000, sorted ascending, with metadata included.”
Portfolio tracking for incoming transfers
“Fetch the most recent 50 incoming transactions to my SEI wallet sei1zxcvbnm, newest first, and exclude any zero-value transfers so I can see real activity.”
DeFi protocol transaction monitoring
“Get the full transaction history for SEI address sei1defiprotocol across all categories, paginated with up to 100 results per page, including metadata, so I can analyze on-chain behavior.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/sei/tx/historyWhen to prefer
Choose this endpoint when you need transaction history specifically on the SEI blockchain network, want fine-grained filtering by address, block range, category, or ordering, and require paginated access to large result sets. It is ideal for wallet auditing, portfolio tracking, and on-chain analytics on SEI. If you need data from other chains (e.g. Ethereum, Solana), use a sibling endpoint for that network.
Side effects
- Invalid or malformed SEI address returns an error or empty result
- Block range out of bounds or non-existent blocks return empty results
- Exceeding maxCount limits may truncate results
- Invalid pageKey causes pagination failure
- Missing required address fields may result in overly broad or rejected queries
- Network congestion or node unavailability may cause timeout
- Payment failure via x402 protocol returns 402 status
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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