Uranium MCP Server
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Uranium MCP Serverupload my artwork as an NFT to the 'Digital Gallery' collection"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Uranium MCP Server
š Quick Install
A Model Context Protocol (MCP) server for working with portal.uranium.pro - creating and managing NFT collections and assets. This server enables LLMs to interact with blockchain NFTs through a simple, structured interface.
Key Features
Fast and efficient NFT management. Direct integration with Uranium API for instant operations.
Multi-collection support. Manage ERC721 and ERC1155 NFT collections seamlessly.
File-based asset creation. Upload images, videos, audio, and documents directly as NFTs.
Bulk operations. List and filter assets across multiple collections with pagination.
Requirements
Node.js 18 or newer
Uranium API key from portal.uranium.pro
VS Code, Cursor, Windsurf, Claude Desktop, Goose or any other MCP client
Getting Started
First, install the Uranium MCP server with your client.
Standard config works in most of the tools:
{
"mcpServers": {
"uranium": {
"command": "npx",
"args": ["uranium-tools-mcp@latest"],
"env": {
"URANIUM_API_KEY": "your_api_key_here"
}
}
}
}Use the Claude Code CLI to add the Uranium MCP server:
claude mcp add uranium npx uranium-tools-mcp@latestThen set your URANIUM_API_KEY when prompted.
Add to your Claude Desktop configuration file:
macOS:
~/Library/Application Support/Claude/claude_desktop_config.jsonWindows:
%APPDATA%\Claude\claude_desktop_config.jsonLinux:
~/.config/Claude/claude_desktop_config.json
{
"mcpServers": {
"uranium": {
"command": "npx",
"args": ["uranium-tools-mcp@latest"],
"env": {
"URANIUM_API_KEY": "your_api_key_here"
}
}
}
}Create or edit the configuration file ~/.codex/config.toml and add:
[mcp_servers.uranium]
command = "npx"
args = ["uranium-tools-mcp@latest"]
env = { URANIUM_API_KEY = "your_api_key_here" }For more information, see the Codex MCP documentation.
Click the button to install:
Or install manually:
Go to Cursor Settings -> MCP -> Add new MCP Server. Name it "uranium", use command type with the command npx uranium-tools-mcp@latest. Add environment variable URANIUM_API_KEY with your API key.
Follow the MCP install guide, use the standard config above with your API key.
Click the button to install:
Or install manually:
Go to Advanced settings -> Extensions -> Add custom extension. Name it "uranium", use type STDIO, and set the command to npx uranium-tools-mcp@latest. Add environment variable URANIUM_API_KEY with your API key. Click "Add Extension".
Click the button to install:
Or install manually:
Go to Program in the right sidebar -> Install -> Edit mcp.json. Use the standard config above with your API key.
Follow the MCP Servers documentation. For example in ~/.config/opencode/opencode.json:
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"uranium": {
"type": "local",
"command": [
"npx",
"uranium-tools-mcp@latest"
],
"env": {
"URANIUM_API_KEY": "your_api_key_here"
},
"enabled": true
}
}
}Open Qodo Gen chat panel in VSCode or IntelliJ ā Connect more tools ā + Add new MCP ā Paste the standard config above with your API key.
Click Save.
Click the button to install:
Or install manually:
Follow the MCP install guide, use the standard config above. You can also install the Uranium MCP server using the VS Code CLI:
# For VS Code
code --add-mcp '{"name":"uranium","command":"npx","args":["uranium-tools-mcp@latest"],"env":{"URANIUM_API_KEY":"your_api_key_here"}}'After installation, the Uranium MCP server will be available for use with your GitHub Copilot agent in VS Code.
Follow Windsurf MCP documentation. Use the standard config above with your API key.
Configuration
Environment Variables
URANIUM_API_KEY(required): Your Uranium API key from portal.uranium.proURANIUM_BASE_URL(optional): API base URL. Defaults tohttps://gw.urnm.pro
Example Configuration
{
"mcpServers": {
"uranium": {
"command": "npx",
"args": ["uranium-tools-mcp@latest"],
"env": {
"URANIUM_API_KEY": "your_api_key_here"
// URANIUM_BASE_URL is optional, defaults to https://gw.urnm.pro
}
}
}
}Local Installation
If you prefer to install locally:
npm install -g uranium-tools-mcp
# or
pnpm add -g uranium-tools-mcp
# or
yarn global add uranium-tools-mcpThen use uranium-tools-mcp instead of npx uranium-tools-mcp@latest in the configuration.
Tools
This MCP server provides 4 main tools for NFT management:
list_collections
Description: List all user collections (personal, common, and external)
Parameters: None
create_collection
Description: Create a new NFT collection
Parameters:
name(string, required): Collection name (3-30 characters, letters, numbers, and [_.-] symbols) [min length: 3, max length: 30]symbol(string, required): Collection symbol (3-30 characters, letters, numbers, and underscores) [min length: 3, max length: 30]type(string, enum: ERC721, ERC1155, required): Collection type: ERC721 (single NFTs) or ERC1155 (multi-token)
list_assets
Description: List assets with optional filtering by collection, search, and pagination
Parameters:
contractId(string, optional): Filter assets by collection IDpage(number, optional): Page number (default: 1) [min: 1, default: 1]pageSize(number, optional): Number of assets per page (default: 20, max: 100) [min: 1, max: 100, default: 20]sortBy(string, optional): Sort field (default: createdAt) [default: "createdAt"]order(string, enum: asc, desc, optional): Sort order (default: asc) [default: "asc"]quickFilter(string, optional): Search text to filter assets by title
create_asset
Description: Create a new NFT asset from a local file or base64 data
Parameters:
filePath(string, optional): Absolute path to the media file (for local files)fileData(string, optional): Base64 encoded file data (for Claude Desktop)fileName(string, optional): Original filename (required when using fileData)mimeType(string, optional): MIME type of the file (required when using fileData, e.g., 'image/png')contractId(string, required): ID of the collection to mint the asset intitle(string, required): Asset title (3-120 characters) [min length: 3, max length: 120]description(string, optional): Asset description (optional, max 255 characters) [max length: 255]location(string, optional): Location where the asset was created (optional, max 100 characters) [max length: 100]editions(number, optional): Number of editions (for ERC1155 collections only, 1-1000) [min: 1, max: 1000]shareWithCommunity(boolean, optional): Make the asset discoverable by the community (optional, default: false) [default: false]
Supported File Formats
Images: JPG, JPEG, PNG, GIF, WebP, SVG
Video: MP4, WebM, MOV, AVI
Audio: MP3, WAV, OGG
Documents: PDF, TXT
Development
Building from Source
Clone the repository:
git clone https://github.com/xkelxmc/uranium-mcp.git
cd uranium-mcpInstall dependencies:
npm installBuild the project:
npm run buildDevelopment Commands
# Compile in watch mode
npm run dev
# Build for production
npm run build
# Start server locally
npm start
# Clean build directory
npm run cleanTesting
Using MCP Inspector
Test your MCP server with the MCP Inspector:
# For installed version
npx @modelcontextprotocol/inspector uranium-tools-mcp
# For local development
npm run build:dev
npx @modelcontextprotocol/inspector node build/index.jsDevelopment Testing
# Test with stdio transport
npm run dev:stdio
# Test with HTTP transport
npm run dev:http
# Inspect with HTTP transport
npm run mcp:inspectTroubleshooting
Common Issues
API Key not working: Make sure your API key is valid and has the necessary permissions at portal.uranium.pro
Connection errors: Check that the URANIUM_BASE_URL is correct (defaults to
https://gw.urnm.pro)File upload issues: Ensure the file path is absolute and the file exists
Collection creation fails: Verify that collection names and symbols follow the required format (3-30 characters, alphanumeric and underscore)
Project Structure
src/
āāā api/ # Complete copy of Uranium API from Raycast
āāā utils/ # Utilities for validation, formatting, etc.
āāā models/ # Upload primitives for working with files
āāā tools/ # MCP tools
āāā server.ts # MCP server configuration
āāā index.ts # Entry point
āāā config.ts # API and MCP configurationLicense
todo
Support
For issues and questions:
Contact support at uranium.pro
Available Tools
4 toolscreate_assetB
Create a new NFT asset from a local file or base64 data
| Name | Required | Description | Default |
|---|---|---|---|
| filePath | No | Absolute path to the media file (for local files) | |
| fileData | No | Base64 encoded file data (for Claude Desktop) | |
| fileName | No | Original filename (required when using fileData) | |
| mimeType | No | MIME type of the file (required when using fileData, e.g., 'image/png') | |
| contractId | Yes | ID of the collection to mint the asset in | |
| title | Yes | Asset title (3-120 characters) | |
| description | No | Asset description (optional, max 255 characters) | |
| location | No | Location where the asset was created (optional, max 100 characters) | |
| editions | No | Number of editions (for ERC1155 collections only, 1-1000) | |
| shareWithCommunity | No | Make the asset discoverable by the community (optional, default: false) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'Create a new NFT asset' implies a write/mutation operation, the description doesn't address critical behavioral aspects like authentication requirements, rate limits, side effects (e.g., minting on-chain), error handling, or what happens upon success (e.g., returns an asset ID). For a creation tool with zero annotation coverage, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded with the core action and resource, making it easy to understand at a glance. Every part of the sentence earns its place by specifying the creation target and input methods.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a 10-parameter creation tool with no annotations and no output schema, the description is insufficiently complete. It doesn't explain what the tool returns (e.g., asset ID, transaction hash), behavioral traits like permissions or costs, or how it interacts with the blockchain. For a tool that likely involves minting and on-chain operations, more context is needed to guide effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, meaning all parameters are documented in the input schema. The description adds minimal value beyond the schema by mentioning the two input sources (local file or base64 data), which loosely maps to filePath and fileData parameters. However, it doesn't provide additional context, constraints, or examples beyond what's already in the schema descriptions, so the baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Create a new NFT asset') and the resource involved ('from a local file or base64 data'), distinguishing it from sibling tools like create_collection (which creates collections) and list_assets/list_collections (which are read operations). It precisely communicates what the tool does without being vague or tautological.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like create_collection or list_assets. It mentions the input sources (local file or base64 data) but doesn't specify prerequisites, dependencies, or contextual scenarios for choosing this tool over others. There's no explicit when/when-not or alternative tool references.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
create_collectionC
Create a new NFT collection
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | Collection name (3-30 characters, letters, numbers, and [_.-] symbols) | |
| symbol | Yes | Collection symbol (3-30 characters, letters, numbers, and underscores) | |
| type | Yes | Collection type: ERC721 (single NFTs) or ERC1155 (multi-token) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It states 'Create' implies a write/mutation operation, but fails to mention permissions, costs, network effects, or response behavior. This is a significant gap for a creation tool with zero annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with zero wasted words. It's appropriately sized and front-loaded, clearly stating the core action without unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of creating an NFT collection (a write operation with potential costs and permissions), no annotations, and no output schema, the description is incomplete. It lacks critical behavioral and contextual details needed for safe and effective tool invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all three parameters. The description adds no additional parameter semantics beyond what's in the schema, meeting the baseline for high coverage but not enhancing understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Create') and resource ('new NFT collection'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like 'create_asset' or 'list_collections' beyond the resource type, so it's not fully specific to sibling context.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like 'create_asset' or 'list_collections'. It lacks context about prerequisites, typical scenarios, or exclusions, leaving the agent with minimal usage direction.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
list_assetsC
List assets with optional filtering by collection, search, and pagination
| Name | Required | Description | Default |
|---|---|---|---|
| contractId | No | Filter assets by collection ID | |
| page | No | Page number (default: 1) | |
| pageSize | No | Number of assets per page (default: 20, max: 100) | |
| sortBy | No | Sort field (default: createdAt) | createdAt |
| order | No | Sort order (default: asc) | asc |
| quickFilter | No | Search text to filter assets by title |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'optional filtering by collection, search, and pagination' which gives some context about capabilities, but doesn't disclose important behavioral traits like whether this is a read-only operation, potential rate limits, authentication requirements, or what the response format looks like. For a tool with 6 parameters and no annotations, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise - a single sentence that efficiently communicates the core functionality and key filtering options. Every word earns its place with no wasted verbiage. The structure is front-loaded with the main purpose followed by key capabilities.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 6 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain what an 'asset' represents in this context, what fields are returned, or provide any context about the data model. For a list operation with filtering capabilities, more context about the return format and data structure would be helpful.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so all parameters are well-documented in the schema. The description mentions 'optional filtering by collection, search, and pagination' which maps to contractId, quickFilter, page, and pageSize parameters, but doesn't add meaningful semantic context beyond what the schema already provides. The baseline of 3 is appropriate given the comprehensive schema documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'List' and resource 'assets', and mentions optional filtering capabilities. It distinguishes from siblings like create_asset and create_collection by being a read operation, though it doesn't explicitly contrast with list_collections. The purpose is specific but could be more differentiated from list_collections.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like list_collections or create_asset. It mentions filtering options but doesn't specify scenarios where filtering is appropriate or when other tools might be better suited. No explicit when/when-not instructions are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
list_collectionsB
List all user collections (personal, common, and external)
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool lists collections but does not describe any behavioral traits such as permissions needed, rate limits, pagination, or output format. The description is minimal and lacks essential context for safe and effective use.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core action ('List all user collections') and specifies the scope. There is no wasted language, and it is appropriately sized for a simple listing tool with no parameters.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of annotations and output schema, the description is incomplete. It does not explain what the return values look like (e.g., format, structure) or any behavioral aspects like error handling. For a tool with no structured fields to rely on, the description should provide more context to be fully helpful.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 0 parameters with 100% coverage, so the schema fully documents the lack of inputs. The description adds no parameter information, which is appropriate since there are no parameters. A baseline of 4 is applied for tools with zero parameters, as the description need not compensate for missing schema details.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('List') and resource ('user collections'), specifying the scope includes personal, common, and external collections. It distinguishes the tool from siblings like 'create_collection' (creation vs. listing) and 'list_assets' (collections vs. assets), though it doesn't explicitly contrast with 'create_asset'. The purpose is specific but not fully differentiated from all siblings.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, context for usage, or exclusions. While the tool name and description imply it's for listing collections, there is no explicit comparison to sibling tools like 'list_assets' or advice on when to choose one over the other.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
TDQS
Each tool has a clearly distinct purpose: create_asset and create_collection handle creation of different resource types, while list_assets and list_collections handle listing of those same resource types. There is no overlap in functionality - assets and collections are separate entities with no ambiguity between tools.
All tools follow a perfect verb_noun pattern: create_asset, create_collection, list_assets, list_collections. The naming is completely consistent with 'create' for creation operations and 'list' for listing operations, all using snake_case throughout.
Four tools is reasonable for an NFT management server, though slightly minimal. The server covers creation and listing for both assets and collections, which represents a solid foundation, but additional operations like updating or deleting resources would typically be expected for a complete CRUD surface.
The server provides create and list operations for both assets and collections, but lacks update and delete functionality. While the core creation and listing workflows are covered, agents cannot modify or remove existing resources, which represents a notable gap in the CRUD lifecycle for this domain.
Maintenance
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