blockchain-data-interface-suite
Facilitate distributed ledger interactions and digital asset management, encompassing retrieval of token holdings per address, querying asset descriptive data, and ascertaining the most recent ledger sequence number.
Author

itsanishjain
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Blockchain Data Interface Module
This module provides an abstraction layer utilizing the Alchemy Software Development Kit (SDK) for core blockchain and Non-Fungible Token (NFT) data operations.
Core Capabilities
- Retrieve Non-Fungible Tokens associated with a specific wallet identifier
- Fetch detailed metadata pertaining to an individual NFT asset
- Secure the current highest processed block index
- Extensible framework allowing for future endpoint additions as required
Deployment Procedures
Automated Integration via Smithery
To provision this service instance for Claude Desktop using Smithery:
npx -y @smithery/cli install @itsanishjain/alchemy-sdk-mcp --client claude
Manual Installation Steps
- Install required software packages:
npm install
- Compile the source code artifacts:
npm run build
- Configure Authentication Credentials:
- Obtain an authorization credential from Alchemy
-
Modify the
ALCHEMY_API_KEYvalue within thesettings.jsonconfiguration file -
Initiate the server process:
npm start
Accessible Operations (Endpoints)
1. Retrieve Token Holdings by Proprietor
POST /getNftsForOwner
{
"owner": "wallet_address_string"
}
2. Retrieve Token Asset Descriptive Information
POST /getNftMetadata
{
"contractAddress": "unique_contract_identifier",
"tokenId": "asset_sequence_number"
}
3. Fetch Current Sequence Index
POST /getBlockNumber
Exception Management
All service routes incorporate robust exception capture and reporting mechanisms. Failures are returned conforming to the structure:
{
"error": "Descriptive failure message"
}
Operational Auditing
The backend incorporates comprehensive system logging via standard output error streams for enhanced diagnostic capabilities: - Initialization reports upon startup - Transactional logs corresponding to each API interaction - Error logs detailing exceptions encountered during processing
$env:ALCHEMY_API_KEY="KRdhdsBezoTMVajIknIxlXgBHc1Pprpw"; node dist/index.js
Contextual Note on XMLHttpRequest
XMLHttpRequest (XHR) defines an interface within JavaScript that facilitates asynchronous Hypertext Transfer Protocol (HTTP) request transmission between a client-side application (like a web browser) and a remote server. This capability is fundamental to Asynchronous JavaScript and XML (Ajax) programming paradigms, enabling data fetching and submission without necessitating a full page refresh, which was the primary method prior to XHR (i.e., traditional form submissions or link navigation).
