Connect
Optimize
Secure
Amplemarket MCP Server
for AI Agents
Production-ready Amplemarket MCP server with 43 extensible actions — plus built-in authentication, security, and optimized execution.
Amplemarket MCP Server
Built by 
StackOne
StackOne 
Coverage
43 Agent Actions
Create, read, update, and delete across Amplemarket — and extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your Amplemarket MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every Amplemarket 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 Amplemarket call.
Tools Discovery →What is the Amplemarket MCP Server?
A Amplemarket MCP server lets AI agents read and write Amplemarket data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Amplemarket MCP server ships with 43 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, and optimized agent context. Connect it from MCP clients like Claude Desktop, Cursor, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.
All Amplemarket MCP Tools and Actions
Every action from Amplemarket's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.
Accounts
- List Accounts
Retrieve a paginated list of accounts in Amplemarket
- Get Account
Retrieve a specific account by its ID
People Enrichments
- Create People Enrichment
Start a batch person enrichment request for up to 10,000 people
- Get People Enrichment
Retrieve results of a batch person enrichment request
Company Enrichments
- Create Company Enrichment
Start a batch company enrichment request for up to 10,000 companies
- Get Company Enrichment
Retrieve results of a batch company enrichment request
Contacts
- List Contacts
Retrieve a list of contacts by their IDs
- Get Contact
Retrieve a specific contact by their ID
Lead Lists
- Create Lead List
Create a new lead list in Amplemarket
- List Lead Lists
Retrieve a paginated list of all lead lists in Amplemarket
- Get Lead List
Retrieve a specific lead list by its ID
Email Validations
- Create Email Validation
Start a batch email validation request
- Get Email Validation
Retrieve results of a batch email validation request
Excluded Domains
- Add Excluded Domains
Add domains to the exclusion list
- List Excluded Domains
Retrieve all excluded domains from the exclusion list
- Remove Excluded Domains
Remove domains from the exclusion list
Excluded Emails
- Add Excluded Emails
Add emails to the exclusion list
- List Excluded Emails
Retrieve all excluded emails from the exclusion list
- Remove Excluded Emails
Remove emails from the exclusion list
Other (24)
- Add Leads To Sequence
Add leads to an active or paused sequence by its ID
- Add Leads To List
Add leads to an existing lead list
- Get Account Info
Retrieve the current account information for the authenticated Amplemarket account
- Search People
Search for people using filters such as departments, job functions, industries, and locations
- Search Companies
Search for companies using dynamic query filters
- Get Contact By Email
Retrieve a specific contact by their email address
- List Sequences
Retrieve a paginated list of all sequences in Amplemarket
- List Calls
Retrieve a paginated list of all calls in Amplemarket
- List Call Dispositions
Retrieve all available call disposition categories
- Get Call Recording
Retrieve the recording for a specific call
- List Tasks
Retrieve a paginated list of tasks for a specific user in Amplemarket
- List Task Statuses
Retrieve all available task statuses
- List Task Types
Retrieve all available task types
- List Mailboxes
Retrieve a paginated list of all mailboxes in Amplemarket
- List Users
Retrieve a paginated list of all users in Amplemarket
- Update Mailbox Daily Limit
Update the daily email sending limit for a specific mailbox
- Find Person
Find a single person by LinkedIn URL, email, or name and company combination
- Cancel People Enrichment
Cancel an in-progress batch person enrichment request
- Find Company
Find a single company by LinkedIn URL or domain
- Cancel Company Enrichment
Cancel an in-progress batch company enrichment request
- Log Call
Log a new call in Amplemarket
- Complete Task
Mark a specific task as completed
- Skip Task
Skip a specific task
- Cancel Email Validation
Cancel an in-progress batch email validation request
Set Up Your Amplemarket MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to Amplemarket in under 10 lines of code.
MCP Clients
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>"
]
}
}
}Amplemarket MCP Server 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
Amplemarket MCP Server FAQ
Amplemarket MCP server vs direct API integration — what's the difference?
A Amplemarket MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Amplemarket. A Amplemarket MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Amplemarket at runtime. StackOne provides both.
How does Amplemarket authentication work for AI agents?
Amplemarket authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Amplemarket account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via
origin_owner_id.Are Amplemarket MCP tools vulnerable to prompt injection?
Yes — Amplemarket MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Amplemarket agent and how do I avoid it?
Context bloat happens when Amplemarket tool schemas and API responses eat your Amplemarket agent's memory, preventing it from reasoning effectively. A single Amplemarket query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Amplemarket agent can access?
Yes — you can limit which actions your Amplemarket agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Amplemarket MCP server?
Yes — you can create custom agent actions for your Amplemarket MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Amplemarket's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Amplemarket MCP server?
Skip a Amplemarket MCP server if your integration is purely software-to-software — direct Amplemarket API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Amplemarket actions at runtime.
What AI frameworks and AI clients does the StackOne Amplemarket MCP server support?
The StackOne Amplemarket MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.
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.