LogicMelon MCP Server
for AI Agents
Connect your AI agent to StackOne's LogicMelon MCP server and give it 27 MCP tools out of the box. Auth, tool execution, and security all managed.
StackOne 
Coverage
27 Agent Actions
Create, read, update, and delete across LogicMelon — and extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your LogicMelon MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every LogicMelon tool response scanned for prompt injection in milliseconds — 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 LogicMelon call.
Tools Discovery →What is the LogicMelon MCP Server?
A LogicMelon MCP server lets AI agents read and write LogicMelon data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's LogicMelon MCP server ships with 27 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 LogicMelon MCP Tools
Every action from LogicMelon's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.
Users
- Create User
Create user
- List Users
List users
- Update User
Update user
Adverts
- Create Advert
Create a new job advert in LogicMelon
- List Adverts
List adverts with filters
Organisations
- Create Organisation
Create organisation
- List Organisations
List organisations
- Update Organisation
Update organisation
- Delete Organisation
Delete organisation
Other (18)
- Add Advert Values
Add field values to an advert
- Create Advert Candidate
Create an applicant for an advert
- Create Advert Candidate With Document
Create an applicant with resume/CV
- Create Advert Candidate Note
Create a note for a candidate
- List Applications
List candidate applications (people who applied to adverts). For job postings/adverts themselves, use list_adverts
- List Applications Paged
List candidate applications (people who applied to adverts) with pagination. Not for job postings/adverts — use list_adverts for those, even for paged/sorted advert requests
- List Public Feeds
List public job board feeds
- Get Login URL
Get login URL for LogicMelon UI
- Get Currencies
Retrieve available currencies for salary fields
- Get Values
Get lookup values for fields
- Query Job Title
Query job titles
- Query Locations
Resolve a plain-text location name (e.g., "London") into a LocationValue code required when setting any advert location
- Deliver Advert
Validate and mark advert for delivery to job boards. If the response shows MarkedForDelivery=false, fix the missing fields via add_advert_values and call this again
- Track Advert
Track advert delivery status
- Close Advert
Close advert on job boards
- Archive Advert
Archive advert and stop all postings
- Unarchive Advert
Restore an archived advert
- Candidate Tag
Tag a candidate in the system
LogicMelon AI Agent Use Cases
Connect your AI agent to LogicMelon and help your team scale the recruiting operations they run by hand today.
Use StackOne to connect your AI agent to your ATS and job boards to automate job posting distribution.
ViewUse StackOne to connect your AI agent to your ATS, survey tools, and messaging systems to automate reference checks.
ViewUse StackOne to connect your AI agent to your ATS, HRIS, and document management tools to automate offer letter generation.
ViewSet Up Your LogicMelon MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to LogicMelon 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
MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
11 min
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 200+ Connector Builds Taught Us
MCP wraps APIs, it doesn't replace them. After building 200+ connectors that serve both, here's when each approach wins.
14 min read
LogicMelon MCP Server FAQ
Does StackOne have a LogicMelon MCP server?
LogicMelon MCP server vs direct API integration — what's the difference?
How does LogicMelon authentication work for AI agents?
origin_owner_id.Are LogicMelon MCP tools vulnerable to prompt injection?
What is the context bloat of a LogicMelon agent and how do I avoid it?
Can I limit which actions my LogicMelon agent can access?
Can I create custom agent actions for my LogicMelon MCP server?
When should I NOT use a LogicMelon MCP server?
What AI frameworks and AI clients does the StackOne LogicMelon 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.