How to Use the Marqeta MCP in CrewAI

Q: How do I add the Marqeta MCP Server to a CrewAI agent?

Pass the Vinkius HTTP URL directly into the mcps list when initializing your CrewAI agent. The agent automatically discovers tools like createcard and createuser to start managing your card program.

Q: How does CrewAI handle webhook events from Marqeta?

You can configure the createwebhook tool to route Marqeta events to your CrewAI environment. A specialized monitoring agent can listen to these webhooks and assign tasks to other agents based on the payload.

Q: Can CrewAI agents simulate transaction testing?

Yes, your testing crew can call simulateauthorization and simulateclearing to run mock transactions. This lets your agents test their own fraud-detection prompts against simulated card swipes.

Deploy a specialized crew of CrewAI agents to manage your Marqeta card program, automate fraud monitoring, and handle disputes.

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Connect Marqeta MCP to CrewAI

Create your Vinkius account to connect Marqeta to CrewAI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Marqeta with CrewAI

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Collaborative Card Issuing and KYC

The `create_user` tool registers new cardholders on the Marqeta platform. In a CrewAI setup, an Onboarding Agent runs this MCP Server tool, while a separate Compliance Agent executes `perform_kyc` to verify the user's identity. The two agents share memory to pass user tokens and verification statuses back and forth. This collaborative approach ensures that cards are only generated via `create_card` once all compliance checks pass.

Autonomous Fraud Response via MCP Server

The `create_card_transition` tool instantly updates a card's state to active, suspended, or terminated. Your CrewAI Security Agent monitors transaction webhooks and uses this tool to freeze cards the moment it detects fraudulent behavior. While the Security Agent freezes the card, a Customer Service Agent concurrently updates the user's profile state using `create_user_transition`. This multi-agent response happens autonomously, neutralizing threats within seconds.

Automated Ledger and Balance Reconciliation

The `get_balances` tool retrieves the real-time financial standing of any user or business ledger. Your CrewAI Finance Agent queries this tool to reconcile corporate spending against your program funding source. When balances run low, the Finance Agent coordinates with a Funding Agent to execute `create_gpa_order`. This keeps your cards active and funded without requiring manual ledger oversight.

Setup guide

Set up Marqeta MCP in CrewAI

Prerequisites

Python 3.10+ installed
crewai package (pip install crewai)
Active Vinkius subscription with a valid endpoint token

1

Install CrewAI
Run pip install crewai to install the framework. MCP support is built-in via the mcps parameter.
2

Add the MCP URL to your agent
Pass your Vinkius endpoint directly to the mcps list. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. CrewAI handles tool discovery and caching automatically.
3

Kick off your crew
Create a Crew with your agent and tasks. Call crew.kickoff() — the agent will automatically invoke Marqeta tools as needed.

crew.py

from crewai import Agent, Task, Crew

agent = Agent(
    role="Marqeta Analyst",
    goal="Access and analyze Marqeta data via MCP.",
    backstory="Expert analyst with direct Marqeta access.",
    mcps=[
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ],
)

task = Task(
    description="List recent Marqeta transactions",
    agent=agent,
    expected_output="A summary of recent activity",
)

crew = Crew(agents=[agent], tasks=[task])
result = crew.kickoff()
print(result)

Get your connection token →

Prerequisites

Python 3.10+ installed
crewai + crewai-tools packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install crewai crewai-tools. The MCPServerAdapter handles lifecycle management and tool conversion.
2

Connect with MCPServerAdapter
Use MCPServerAdapter as a context manager with SseServerParameters pointing to your Vinkius endpoint. The adapter automatically manages connection lifecycle.
3

Assign tools and run
Pass the returned mcp_tools to your agent's tools parameter. The adapter converts MCP tools to native BaseTool objects compatible with all CrewAI agents.

crew.py

from crewai import Agent, Task, Crew
from crewai_tools import MCPServerAdapter
from mcp import SseServerParameters

server_params = SseServerParameters(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

with MCPServerAdapter(server_params) as mcp_tools:
    agent = Agent(
        role="Marqeta Analyst",
        goal="Access and analyze Marqeta data via MCP.",
        backstory="Expert analyst with direct Marqeta access.",
        tools=mcp_tools,
    )

    task = Task(
        description="List recent Marqeta transactions",
        agent=agent,
        expected_output="A summary of recent activity",
    )

    crew = Crew(agents=[agent], tasks=[task])
    result = crew.kickoff()
    print(result)

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Marqeta. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Marqeta MCP in CrewAI

Pass the Vinkius HTTP URL directly into the `mcps` list when initializing your CrewAI agent. The agent automatically discovers tools like `create_card` and `create_user` to start managing your card program.

Yes, you can assign the MCP Server to multiple agents within your crew. The Onboarding Agent can use `create_user` while the Risk Agent uses `create_velocity_control` to manage spending limits.

You can configure the `create_webhook` tool to route Marqeta events to your CrewAI environment. A specialized monitoring agent can listen to these webhooks and assign tasks to other agents based on the payload.

Yes, your testing crew can call `simulate_authorization` and `simulate_clearing` to run mock transactions. This lets your agents test their own fraud-detection prompts against simulated card swipes.

Vinkius routes all tool execution through secure, isolated V8 instances that never log or store your API keys or ledger balances. Your CrewAI deployment communicates directly with Marqeta via encrypted pathways, ensuring zero outside exposure.

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