Lumonic MCP Server
for AI Agents
Connect your AI agent to StackOne's Lumonic MCP server and give it 31 MCP tools out of the box. Auth, tool execution, and security all managed.
StackOne 
Coverage
31 Agent Actions
Agents can read, write and delete in Lumonic. Extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your Lumonic MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every Lumonic tool response scanned for prompt injection in milliseconds, with 88.7% accuracy, all running on CPU.
Prompt Injection Defense →
Performance
Max Agent Context. Min Cost.
Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Lumonic call.
Tools Discovery →What is the Lumonic MCP Server?
A Lumonic MCP server lets AI agents read and write Lumonic data through the Model Context Protocol, Anthropic's open standard for connecting LLMs to external tools. StackOne's Lumonic MCP server ships with 31 pre-built actions, fully extensible via the Connector Builder, plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.
All Lumonic MCP Tools
Every StackOne action for Lumonic, ready for your agent. Read, write and delete, scoped to exactly what you need.
Documents
- Import Documents
Create documents from files already uploaded through /document-uploads/create.
- List Documents
Retrieve a list of documents based on query filters.
An Entitys
- Create An Entity
Create a new entity in the specified namespace.
- Get An Entity
Retrieve details of a specific entity by their unique ID.
- Delete An Entity
Delete a specific entity by its unique ID.
Periodic Field Values
- Import Periodic Field Values
Bulk import periodic field values into a cluster.
- List Periodic Field Values
Retrieve periodic field values based on various filter criteria such as entity IDs, effective dates, field IDs, modification and creation dates, scenario, and periodic type.
Static Field Values
- Import Static Field Values
Bulk import static field values into a cluster.
- List Static Field Values
Retrieve static field values based on various filter criteria such as entity IDs, field IDs, modification and creation dates, and scenario.
Other (22)
- Import Cashflows
Bulk import cashflows into the system.
- Create Document Upload Targets
Create pre-signed upload targets so files can be sent directly to storage, without passing through the Lumonic API.
- Get A Covenant
Retrieve details of a specific covenant by its unique ID.
- List Covenants
Retrieve a list of covenants based on query filters.
- List Covenant Values
Retrieve covenant values based on query filters.
- List Deliverables
Retrieve the recurring reporting obligations entities owe you, and the cadence of each.
- List Tasks
Retrieve a list of tasks and their derived status based on query filters.
- Get A Document
Retrieve details of a specific document by its unique ID.
- Get A Document Tag
Retrieve details of a specific document tag by its unique ID.
- List Document Tags
Retrieve a list of document tags based on query filters.
- List Entities
Retrieve a list of all entities.
- Get A Periodic Field
Retrieve details of a specific periodic field by their unique ID.
- List Periodic Fields
Retrieve a list of periodic fields based on query filters.
- Get A Static Field
Retrieve details of a specific static field by their unique ID.
- List Static Fields
Retrieve a list of static fields based on query filters.
- Get A Formula
Retrieve details of a specific formula by its unique ID, including its Lx expression in human-readable format.
- List Formulas
Retrieve a list of formulas based on query filters.
- List Formula Values
Retrieve formula values based on various filter criteria such as entity IDs, effective dates, formula IDs, and scenario.
- Get A Namespace
Retrieve details of a specific namespace by its unique ID.
- List Namespaces
Retrieve a list of namespaces based on query filters.
- Get A Scenario
Retrieve details of a specific field_scenario by their unique ID.
- List Scenarios
Retrieve a list of scenarios based on query filters.
Set Up Your Lumonic MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to Lumonic in under 10 lines of code.
Agent Frameworks
JSON{
"mcpServers": {
"stackone": {
"command": "npx",
"args": [
"-y",
"mcp-remote@latest",
"https://api.stackone.com/mcp?x-account-id=<account_id>",
"--header",
"Authorization: Basic <YOUR_BASE64_TOKEN>"
]
}
}
}Platform Resources
Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
10 min
Indirect Prompt Injection Defense for MCP Tools: A Technical Guide
MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.
12 min
MCP vs A2A: Architecture, Security, and When to Use Each
MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.
12 min
MCP vs API: What Hundreds of Connector Builds Taught Us
MCP wraps APIs, it doesn't replace them. After building hundreds of connectors that serve both, here's when each approach wins.
14 min read
Lumonic MCP Server FAQ
Does StackOne have a Lumonic MCP server?
Lumonic MCP server vs direct API integration: what's the difference?
How does Lumonic authentication work for AI agents?
origin_owner_id.Are Lumonic MCP tools vulnerable to prompt injection?
What is the context bloat of a Lumonic agent and how do I avoid it?
Can I limit which actions my Lumonic agent can access?
Can I create custom agent actions for my Lumonic MCP server?
When should I NOT use a Lumonic MCP server?
What AI frameworks and AI clients does the StackOne Lumonic MCP server support?
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.