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Amberdata On-Chain API

On-chain blockchain data (blocks, transactions, addresses, tokens).

Amberdata On-Chain API is one of 28 APIs that Amberdata publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Onchain. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and an AsyncAPI specification.

This API exposes 8 operations across 8 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://api.amberdata.com.

8 operations 8 paths 1 schemas 8 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://api.amberdata.com/blockchains
Authentication
API Key
Terms of Service
Resource Areas
1

Authentication & Security 1

Amberdata On-Chain API declares 1 security scheme for authenticating requests. An API key is passed in the header as x-api-key (apiKeyAuth). By default, every request must be authenticated.

  • apiKeyAuth — Unique, user-specific API key. Required on every REST request via the x-api-key header.

Paths & Operations 8

Across 8 paths, the API surfaces 8 operations — 8 GET. Each is listed below with its method, path, parameters, and response codes.

On-Chain 8

On-chain blockchain data (blocks, transactions, addresses, tokens).

GET
/blockchains/{blockchainId}/blocks
Blocks
getBlocks 3 params → 200
GET
/blockchains/{blockchainId}/transactions
Transactions
getTransactions 3 params → 200
GET
/blockchains/{blockchainId}/transactions/{hash}
Transaction by hash
getTransaction 2 params → 200
GET
/blockchains/{blockchainId}/addresses/{address}/balances
Address balances
getAddressBalances 2 params → 200
GET
/blockchains/{blockchainId}/addresses/{address}/transactions
Address transactions
getAddressTransactions 2 params → 200
GET
/blockchains/{blockchainId}/tokens/{address}/information
Token information
getTokenInformation 2 params → 200
GET
/blockchains/{blockchainId}/tokens/{address}/transfers
Token transfers
getTokenTransfers 4 params → 200
GET
/blockchains/{blockchainId}/tokens/{address}/holders
Token holders
getTokenHolders 2 params → 200

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is ApiResponse (4 properties). Each schema is shown below with its type and property counts.

ApiResponse
object
Standard Amberdata API envelope. The requested data is returned under the payload property, alongside the HTTP status and a status message.
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

amberdata-on-chain-api-openapi.yml Raw ↑

Other APIs Amberdata publishes across the network.

Amberdata WebSocket Streaming API
Amberdata DeFi API
Amberdata Futures API
Amberdata Options API
Amberdata Spot API
Amberdata Addresses API
Amberdata Analytics API
Amberdata Blocks API
Amberdata Classifications API
Amberdata Contracts API
Amberdata Depth API
Amberdata Dex API
Where this information came from

This is an independent, third-party profile of Amberdata On-Chain 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.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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