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TraceFast Block Transactions
x402
TraceFast Block Transactions is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Returns ordered, paged transactions for a specific Ethereum mainnet block, each with sender, recipient, value, gas, fee, and receipt outcome.
Price / call$0.01
Success—
StatusUnknown
How this service works
TraceFast live Ethereum data: the transactions of one block in their order within the block, each with sender, recipient, value, gas, fee fields and the receipt's outcome. Paged by an opaque cursor: pass `nextCursor` back as `cursor` until it is absent. Path number: Block height. Query limit: 1..=100, default 25; cursor: `nextCursor` of the previous page. Docs: https://docs.tracefast.xyz/api/block-transactions.md
Output
A paginated list of transactions in the specified Ethereum block, ordered by their position in the block. Each transaction includes sender address, recipient address, ETH value transferred, gas limit, gas used, transaction fee, and the receipt outcome (success or failure). A `nextCursor` field is included when more pages exist; absent when all transactions have been returned.
Example use cases
Block transaction audit for compliance
“Get me every transaction in Ethereum block 19800000 — I need to see the sender, recipient, value, and whether each tx succeeded or failed, paginated 100 at a time.”
MEV and ordering analysis
“Fetch the full ordered transaction list for Ethereum block 20100000 so I can analyze transaction ordering and potential MEV extraction within that block.”
Gas and fee tracking for a block
“Show me all transactions in block 20250000 on Ethereum mainnet with their gas used and fees paid — I want to understand the fee distribution across the whole block.”
Technical details
Endpoint
GEThttps://mpp.tracefast.xyz/api/v1/chains/1/blocks/:number/transactions?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the complete, ordered list of transactions within a specific Ethereum mainnet block, including gas, fee, and receipt outcome data. Prefer this over general blockchain explorers when you need programmatic, paginated access to block-level transaction data with structured fields. Ideal for compliance audits, MEV research, block replay, or fee analysis where transaction ordering within the block matters.
Side effects
- Block number does not exist yet (future block) — returns error or empty result
- Invalid or expired cursor value — returns pagination error
- Limit out of range (0 or >100) — returns validation error
- Network or provider unavailability — returns 5xx error
- Payment not attached or insufficient — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — |
Tags
x402
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