AlchemyClientOptions
Defined in: history-evm/src/alchemy.ts:26
Alchemy backend: alchemy_getAssetTransfers (Transfers API) for the address
lists, plain JSON-RPC on the same endpoint for what the Transfers API lacks
(fee, status, calldata). Free tier: 30M CU / month; a Transfers call is
120 CU, eth_getTransactionByHash 15 CU, eth_getTransactionReceipt 15 CU.
Lists: one per direction (fromAddress, toAddress), both paged by block
(toBlock = below - 1, order: desc, maxCount = limit) exactly like the
Etherscan lists. The API’s own pageKey is deliberately NOT used as the
list cursor: measured 2026-10-14 on base-mainnet, a request carrying a
pageKey ignores toBlock, an unknown / expired pageKey (TTL 10 min)
silently restarts from the first page, and a malformed one is a 400 — none
of which fits a cursor that may be resumed hours later or re-fetched with a
narrower window. Block paging has no TTL and is idempotent.
Properties
Section titled “Properties”apiKey
Section titled “apiKey”apiKey:
string
Defined in: history-evm/src/alchemy.ts:29
bucket
Section titled “bucket”bucket:
TokenBucket
Defined in: history-evm/src/alchemy.ts:35
fetch:
FetchLike
Defined in: history-evm/src/alchemy.ts:34
internal
Section titled “internal”internal:
boolean
Defined in: history-evm/src/alchemy.ts:33
Ask for the internal category (only where Alchemy supports it; elsewhere the call is rejected).
network
Section titled “network”network:
string
Defined in: history-evm/src/alchemy.ts:28
Network slug, e.g. base-mainnet.
timeoutMs
Section titled “timeoutMs”timeoutMs:
number
Defined in: history-evm/src/alchemy.ts:36
urlTemplate?
Section titled “urlTemplate?”
optionalurlTemplate?:string
Defined in: history-evm/src/alchemy.ts:31
https://{network}.g.alchemy.com/v2/{key} by default.