Lightfield MCP Server
for AI Agents
Connect your AI agent to StackOne's Lightfield MCP server and give it 32 MCP tools out of the box. Auth, tool execution, and security all managed.
StackOne 
Coverage
32 Agent Actions
Agents can read, write and delete in Lightfield. Extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your Lightfield MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every Lightfield 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 Lightfield call.
Tools Discovery →What is the Lightfield MCP Server?
A Lightfield MCP server lets AI agents read and write Lightfield data through the Model Context Protocol, Anthropic's open standard for connecting LLMs to external tools. StackOne's Lightfield MCP server ships with 32 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 Lightfield MCP Tools
Every StackOne action for Lightfield, ready for your agent. Read, write and delete, scoped to exactly what you need.
Accounts
- Create Account
Create a new account in Lightfield
- List Accounts
List accounts in Lightfield, newest first, with offset pagination
- Get Account
Retrieve a single account by ID
- Update Account
Update an existing account by ID
- Delete Account
Move an account to the trash so it no longer appears in active lists
Contacts
- Create Contact
Create a new contact in Lightfield
- List Contacts
List contacts in Lightfield, newest first, with offset pagination
- Get Contact
Retrieve a single contact by ID
- Update Contact
Update an existing contact by ID
- Delete Contact
Move a contact to the trash so it no longer appears in active lists
Members
- List Members
List the members of your Lightfield workspace with offset pagination
- Get Member
Retrieve a single workspace member by ID
Notes
- Create Note
Create a new note in Lightfield
- List Notes
List notes in Lightfield, newest first, with offset pagination
- Get Note
Retrieve a single note by ID
- Update Note
Update an existing note by ID
- Delete Note
Move a note to the trash so it no longer appears in active lists
Opportunitys
- Create Opportunity
Create a new opportunity in Lightfield
- Get Opportunity
Retrieve a single opportunity by ID
- Update Opportunity
Update an existing opportunity by ID
- Delete Opportunity
Move an opportunity to the trash so it no longer appears in active lists
Other (11)
- Get Account Definitions
Get the field and relationship definitions for accounts
- Get Account Field History
Get the value history of one field on an account
- Get Contact Definitions
Get the field and relationship definitions for contacts
- Get Contact Field History
Get the value history of one field on a contact
- Get Note Definitions
Get the field and relationship definitions for notes
- List Opportunities
List opportunities in Lightfield, newest first, with offset pagination
- Get Opportunity Definitions
Get the field and relationship definitions for opportunities
- Get Opportunity Field History
Get the value history of one field on an opportunity
- Restore Account
Restore a trashed account back to active records
- Restore Contact
Restore a trashed contact back to active records
- Restore Opportunity
Restore a trashed opportunity back to active records
Lightfield AI Agent Use Cases
Connect your AI agent to Lightfield and help your team scale the sales operations they run by hand today.
Use StackOne to connect your AI agent to your CRM, email, and calendar tools to automate post-demo follow-up.
ViewUse StackOne to connect your AI agent to your CRM, email, and calendar tools to automate deal risk scoring and pipeline alerts.
ViewUse StackOne to connect your AI agent to your CRM, sales engagement, and messaging tools to automate outbound prospecting.
ViewSet Up Your Lightfield MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to Lightfield 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>"
]
}
}
}Check More crm-sales MCP Servers
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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
Lightfield MCP Server FAQ
Does StackOne have a Lightfield MCP server?
Lightfield MCP server vs direct API integration: what's the difference?
How does Lightfield authentication work for AI agents?
origin_owner_id.Are Lightfield MCP tools vulnerable to prompt injection?
What is the context bloat of a Lightfield agent and how do I avoid it?
Can I limit which actions my Lightfield agent can access?
Can I create custom agent actions for my Lightfield MCP server?
When should I NOT use a Lightfield MCP server?
What AI frameworks and AI clients does the StackOne Lightfield 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.