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Phantom API — Blockchain Transaction History
x402
Phantom API — Blockchain 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 on-chain transaction history for a given address or block range across 57+ blockchain networks
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 on-chain transactions matching the specified address, block range, and category filters. Each record may include transaction hash, block number, sender, recipient, value, asset type, and optional metadata such as token name and decimals. A pageKey is included when additional pages are available.
Example use cases
Wallet audit for DeFi activity
“Show me all on-chain transactions sent from 0xDEF...456 between block 18000000 and 18500000, up to 50 results, ordered ascending — include metadata so I can see token details.”
Smart contract inflow monitoring
“Fetch the most recent 100 transactions received by contract address 0x789...ABC, newest first, and exclude any zero-value transfers so I only see real activity.”
ERC-20 transfer history retrieval
“Get the ERC-20 and ERC-721 transfer history for wallet 0x111...222, paginated from the beginning, with metadata, so I can audit which tokens moved in or out.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/stable/tx/historyWhen to prefer
Choose this endpoint when you need fast, paginated, filterable on-chain transaction history for a specific wallet or contract address, especially across 57+ supported networks. It is ideal when you want server-side filtering by category, block range, or zero-value exclusion rather than pulling raw block data. Prefer this over general RPC calls when you need structured, ready-to-use transaction records with optional metadata enrichment.
Side effects
- Invalid or malformed address formats return an error
- Unsupported network or block range out of bounds may return empty results
- Missing required address parameters cause validation errors
- Expired or invalid pageKey breaks pagination continuity
- Rate limits or payment failures (x402) result in 402 Payment Required responses
- Large maxCount values or wide block ranges may time out or be truncated
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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