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Basescan API PRO Endpoints API

The API PRO Endpoints API from Basescan — 20 operation(s) for api pro endpoints.

Basescan API PRO Endpoints API is one of 10 APIs that Basescan publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include API PRO Endpoints. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and rate-limit docs.

This API exposes 20 operations across 20 paths, and defines 30 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against 2 base URLs: https://api.basescan.org/api, https://api-sepolia.basescan.org/api.

20 operations 20 paths 30 schemas 20 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Base URL
https://api.basescan.org/api
Authentication
API Key
License
Resource Areas
1

Authentication & Security 1

Basescan API PRO Endpoints API declares 1 security scheme for authenticating requests. An API key is passed in the query as apikey (apiKeyAuth). By default, every request must be authenticated.

Paths & Operations 20

Across 20 paths, the API surfaces 20 operations — 20 GET. Each is listed below with its method, path, parameters, and response codes.

API PRO Endpoints 20
GET
/?module=account&action=balancehistory
Get Historical Ether Balance for a Single Address By BlockNo
get-historical-ether-balance-for-a-single-address-by-blockno 2 params → 200
GET
/?module=stats&action=dailyavgblocksize
Get Daily Average Block Size
get-daily-average-block-size 3 params → 200
GET
/?module=stats&action=dailyblkcount
Get Daily Block Count and Rewards
get-daily-block-count-and-rewards 3 params → 200
GET
/?module=stats&action=dailyblockrewards
Get Daily Block Rewards
get-daily-block-rewards 3 params → 200
GET
/?module=stats&action=dailyavgblocktime
Get Daily Average Time for A Block to be Included in the Ethereum Blockchain
get-daily-average-time-for-a-block-to-be-included-in-the-ethereum-blockchain 3 params → 200
GET
/?module=stats&action=dailyuncleblkcount
Get Daily Uncle Block Count and Rewards
get-daily-uncle-block-count-and-rewards 3 params → 200
GET
/?module=stats&action=tokensupplyhistory
Get Historical ERC20-Token TotalSupply by ContractAddress & BlockNo
get-historical-erc20-token-totalsupply-by-contractaddress-and-blockno 2 params → 200
GET
/?module=account&action=tokenbalancehistory
Get Historical ERC20-Token Account Balance for TokenContractAddress by BlockNo
get-historical-erc20-token-account-balance-for-tokencontractaddress-by-blockno 3 params → 200
GET
/?module=token&action=tokeninfo
Get Token Info by ContractAddress
get-token-info-by-contractaddress 1 param → 200
GET
/?module=stats&action=dailyavggaslimit
Get Daily Average Gas Limit
get-daily-average-gas-limit 3 params → 200
GET
/?module=stats&action=dailygasused
Get Ethereum Daily Total Gas Used
get-ethereum-daily-total-gas-used 3 params → 200
GET
/?module=stats&action=dailyavggasprice
Get Daily Average Gas Price
get-daily-average-gas-price 3 params → 200
GET
/?module=stats&action=dailytxnfee
Get Daily Network Transaction Fee
get-daily-network-transaction-fee → 200
GET
/?module=stats&action=dailynewaddress
Get Daily New Address Count
get-daily-new-address-count 3 params → 200
GET
/?module=stats&action=dailynetutilization
Get Daily Network Utilization
get-daily-network-utilization 3 params → 200
GET
/?module=stats&action=dailyavghashrate
Get Daily Average Network Hash Rate
get-daily-average-network-hash-rate 3 params → 200
GET
/?module=stats&action=dailytx
Get Daily Transaction Count
get-daily-transaction-count 3 params → 200
GET
/?module=stats&action=dailyavgnetdifficulty
Get Daily Average Network Difficulty
get-daily-average-network-difficulty 3 params → 200
GET
/?module=stats&action=ethdailymarketcap
Get Ether Historical Daily Market Cap
get-ether-historical-daily-market-cap 3 params → 200
GET
/?module=stats&action=ethdailyprice
Get Ether Historical Price
get-ether-historical-price 3 params → 200

Schemas 30

The contract defines 30 schemas that model the data the API accepts and returns. The most detailed are ResponseNOTOK (3 properties), ResponseOK (3 properties), Result.account.balancehistory (1 property), Result.account.tokenbalancehistory (1 property). Each schema is shown below with its type and property counts.

Result.stats.ethdailyprice
object
1 property
Result.stats.dailytxnfee
object
1 property
Result.stats.dailytx
object
1 property
Result.stats.dailygasused
object
1 property
Result.stats.dailyavghashrate
object
1 property
Result.stats.dailyuncleblkcount
object
1 property
PageSort
string
Result.account.tokenbalancehistory
object
1 property
FloatString
string
A float represented as a string.
ResponseOK
object
3 properties 3 required
Result.account.balancehistory
object
1 property
Result.stats.dailyavggaslimit
object
1 property
Result.stats.dailyavggasprice
object
1 property
Result.stats.dailyblockrewards
object
1 property
Result.stats.dailyblkcount
object
1 property
UnixTimestampString
string
A Unix timestamp representing the number of seconds since January 1, 1970, expressed as a string.
Result.stats.dailynetutilization
object
1 property
Result.stats.tokensupplyhistory
object
1 property
AddressHash
string
Result.stats.dailyavgblocktime
object
1 property
IntegerMin0String
string
An integer greater than 0 represented as a string.
Result.stats.dailynewaddress
object
1 property
Result.stats.dailyavgblocksize
object
1 property
Result.stats.ethdailymarketcap
object
1 property
IntegerMin0
integer
Result.token.tokeninfo
object
1 property
Result.stats.dailyavgnetdifficulty
object
1 property
DateYYYYMMDD
string
A date in the YYYY-MM-DD format
FloatWithCommasString
string
A float represented as a string, with optional comma delimiters
ResponseNOTOK
object
3 properties 3 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

basescan-api-pro-endpoints-api-openapi.yml Raw ↑

Other APIs Basescan publishes across the network.

Basescan Accounts API
Basescan Blocks API
Basescan Contracts API
Basescan Gas Tracker API
Basescan Geth/Parity Proxy API
Basescan Logs API
Basescan Stats API
Basescan Tokens API
Basescan Transactions API
Where this information came from

This is an independent, third-party profile of Basescan API PRO Endpoints API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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