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Connect to everything your agents need, without writing the infrastructure to get there.

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Live 19 Actions

Adyen MCP Server
for AI Agents

Connect your AI agent to StackOne's Adyen MCP server and give it ready-to-use MCP tools out of the box. Auth, tool execution, and security all managed.

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Adyen MCP Server
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Coverage

19 Agent Actions

Create, read, update, and delete across Adyen — and extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Adyen MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Adyen 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 Adyen call.

Tools Discovery →

What is the Adyen MCP Server?

A Adyen MCP server lets AI agents read and write Adyen data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Adyen MCP server ships with 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 Adyen MCP Tools

Every action from Adyen's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

API Credential Details

  • Get API Credential Details

    Get details of the API credential behind this connection.

Company API Credentials

  • List Company API Credentials

    List the API credentials of a company account.

  • Get Company API Credential

    Get one API credential of a company account.

Merchant API Credentials

  • List Merchant API Credentials

    List the API credentials of a merchant account.

  • Get Merchant API Credential

    Get one API credential of a merchant account.

Companies

  • List Companies

    List the company accounts the API credential can access.

Companys

  • Get Company

    Get a company account by id.

Company Merchant Accounts

  • List Company Merchant Accounts

    List the merchant accounts under a company account.

Unified Credentials

  • Get Unified Credentials

    Get the current Adyen connection's unified credentials and identity.

Unified Organizations

  • List Unified Organizations

    List unified organizations (Adyen company and merchant accounts) in Adyen.

  • Get Unified Organization

    Get a unified Adyen organization (company or merchant account) by ID.

Unified Users

  • List Unified Users

    List unified users in an Adyen company account and its merchant accounts.

  • Get Unified User

    Get a unified Adyen company or merchant user by ID.

Merchant Accounts

  • List Merchant Accounts

    List the merchant accounts the API credential can access.

  • Get Merchant Account

    Get a merchant account by id.

Company Users

  • List Company Users

    List the Customer Area users of a company account.

  • Get Company User

    Get a company user by id.

Merchant Users

  • List Merchant Users

    List the Customer Area users of a merchant account.

  • Get Merchant User

    Get a merchant account user by id.

Set Up Your Adyen MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Adyen in under 10 lines of code.

MCP Clients

Claude Desktop setup guide
Claude Code setup guide
Cursor setup guide
Goose setup guide

Agent Frameworks

Claude Desktop
{
  "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>"
      ]
    }
  }
}

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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 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

Adyen MCP Server FAQ

Does StackOne have a Adyen MCP server?
Yes. StackOne offers a hosted Adyen MCP server, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.
Adyen MCP server vs direct API integration — what's the difference?
A Adyen MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Adyen. A Adyen 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 Adyen at runtime. StackOne provides both.
How does Adyen authentication work for AI agents?
Adyen 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 Adyen account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Adyen MCP tools vulnerable to prompt injection?
Yes — Adyen 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 Adyen agent and how do I avoid it?
Context bloat happens when Adyen tool schemas and API responses eat your Adyen agent's memory, preventing it from reasoning effectively. A single Adyen 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 Adyen agent can access?
Yes — you can limit which actions your Adyen 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 Adyen MCP server?
Yes — you can create custom agent actions for your Adyen MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Adyen's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Adyen MCP server?
Skip a Adyen MCP server if your integration is purely software-to-software — direct Adyen 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 Adyen actions at runtime.
What AI frameworks and AI clients does the StackOne Adyen MCP server support?
The StackOne Adyen 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.

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