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Synapse API — Ink Network Transaction History
x402
Synapse API — Ink Network 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 2026-09-15).
Retrieves paginated transaction history for addresses on the Ink 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 on the Ink blockchain matching the specified filters, including transfer details, block numbers, asset categories, and optional metadata. A pageKey is provided when additional pages are available.
Example use cases
Wallet activity audit for Ink
“Show me all incoming and outgoing transactions for my Ink wallet 0xDEAD...BEEF in descending order, up to 100 results, with full metadata included.”
Token transfer monitoring between addresses
“Fetch all token transfers from address 0x111... to address 0x222... on the Ink network between block 1000000 and 2000000, excluding zero-value transfers.”
Portfolio history reconciliation
“Get the full paginated transaction history for 0xMYWALLET on Ink chain, starting from the beginning ascending, so I can reconcile my on-chain activity.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/ink/tx/historyWhen to prefer
Use this endpoint when you need on-chain transaction history specifically for the Ink network, with support for address filtering, block range scoping, category filtering, and pagination. Prefer this over generic blockchain explorers when you need programmatic, pay-per-call access without API key provisioning, or when querying the Ink network specifically.
Side effects
- Invalid or malformed address returns a 400 error
- Block range out of bounds or non-existent block returns empty result or error
- maxCount exceeding API limits returns an error or truncated result
- Invalid category string returns validation error
- Payment not included or insufficient USDC causes 402 Payment Required
- pageKey expired or invalid causes pagination failure
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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