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Synapse API — Citrea Transaction History
x402
Synapse API — Citrea 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 Citrea blockchain network
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 Citrea blockchain matching the specified filters, including sender/receiver addresses, block numbers, transfer categories, and optionally full transaction metadata. A pageKey is included when more results are available.
Example use cases
Wallet transaction audit on Citrea
“Show me all transactions sent from my Citrea wallet 0xDe...456 between block 100000 and block 200000, sorted oldest to newest, and skip any zero-value transfers.”
Monitor incoming transfers to a Citrea address
“Fetch the most recent 50 incoming transactions to Citrea address 0xFf...789 with full metadata included so I can see token details.”
Paginated history export for Citrea account
“Get the next page of transaction history for Citrea address 0xAa...111 using page key 'abc123xyz', returning up to 100 records in descending order.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/citrea/tx/historyWhen to prefer
Use this endpoint when you need to query transaction history specifically on the Citrea Bitcoin ZK-rollup network, with support for address filtering, block range scoping, category filtering, pagination, and metadata enrichment. Prefer this over generic EVM history endpoints when Citrea-specific indexing is required.
Side effects
- Invalid address format returns a 400 error
- Unknown or future block numbers may return empty results
- Invalid pageKey causes pagination to fail or restart
- Unsupported category values may be silently ignored or cause a 400 error
- Rate limits or payment failures return a 402 Payment Required error
- Network downtime on Citrea indexer returns 503 or 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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