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Synapse API — Pharos Transaction History
x402
Synapse API — Pharos 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 2026-09-13).
Retrieves paginated transaction history for addresses on the Pharos blockchain network, with filtering by block range, address, category, and metadata options.
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 Pharos network matching the specified filters, including sender/receiver addresses, block numbers, transaction categories, values, and optional metadata. Includes a pageKey for fetching the next page of results.
Example use cases
Wallet activity audit for compliance
“Get me the full transaction history for Pharos wallet 0xDEF...456, sorted oldest to newest, including all metadata, so I can audit what it's been doing.”
Monitor incoming transfers to a contract
“Fetch all incoming transactions to Pharos contract address 0x789...ABC from block 100000 to block 200000, max 100 results, and exclude zero-value transfers.”
Paginate through historical on-chain data
“Continue fetching Pharos transaction history for address 0x111...222 using page key 'abc123xyz' and give me the next 25 results in descending order.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/pharos/tx/historyWhen to prefer
Use this endpoint when you need on-chain transaction history specifically for the Pharos blockchain network. Prefer it when you need paginated, filterable results with block-range scoping, category filtering, or metadata enrichment on Pharos transactions. Not suitable for other chains — check sibling endpoints for other blockchain networks.
Side effects
- Invalid or malformed address returns an error or empty result set
- fromBlock greater than toBlock returns an error or empty response
- Invalid pageKey causes pagination failure
- Unsupported category values may return an error
- Network or rate-limit issues return 5xx errors
- Missing required address fields may return all transactions or an error depending on implementation
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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