Bold MCP Server for LangChain 14 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Bold through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
async with MultiServerMCPClient({
"bold": {
"transport": "streamable_http",
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
}
}) as client:
tools = client.get_tools()
agent = create_react_agent(
ChatOpenAI(model="gpt-4o"),
tools,
)
response = await agent.ainvoke({
"messages": [{
"role": "user",
"content": "Using Bold, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Bold MCP Server
Connect your Bold merchant account to any AI agent and gain full control of your Colombian payment infrastructure through natural conversation.
LangChain's ecosystem of 500+ components combines seamlessly with Bold through native MCP adapters. Connect 14 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
What you can do
- Terminal Management — List all bound datáfono devices (Smart Pro, Smart Mini) and trigger in-store payment flows remotely
- Online Payments — Process card-not-present payments, create shareable payment links, and manage the full transaction lifecycle
- Transaction Intelligence — Query historical transactions by date range, inspect individual payment details including card brand and settlement data
- Refund Operations — Issue full reversals on approved online payments back to the original payment method
- Webhook Configuration — Register and manage real-time HTTPS endpoints for transaction event notifications
- Balance Monitoring — Check your merchant account balance including available funds and pending disbursements
The Bold MCP Server exposes 14 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Bold to LangChain via MCP
Follow these steps to integrate the Bold MCP Server with LangChain.
Install dependencies
Run pip install langchain langchain-mcp-adapters langgraph langchain-openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save the code and run python agent.py
Explore tools
The agent discovers 14 tools from Bold via MCP
Why Use LangChain with the Bold MCP Server
LangChain provides unique advantages when paired with Bold through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine Bold MCP tools with 500+ LangChain components
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
Memory and conversation persistence let agents maintain context across Bold queries for multi-turn workflows
Bold + LangChain Use Cases
Practical scenarios where LangChain combined with the Bold MCP Server delivers measurable value.
RAG with live data: combine Bold tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Bold, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Bold tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Bold tool call, measure latency, and optimize your agent's performance
Bold MCP Tools for LangChain (14)
These 14 tools become available when you connect Bold to LangChain via MCP:
create_online_payment
Requires card tokenization details, the amount in COP, and payer information for Colombian anti-fraud compliance. Process an online card payment
create_payment_link
The link includes the specified amount in Colombian Pesos (COP) and a reference description. Generate a shareable payment link
create_webhook
) in your Bold merchant account. Register a new webhook endpoint
delete_webhook
Remove a webhook endpoint
get_account_balance
Get current merchant account balance
get_online_payment
Get details of an online payment
get_payment_link
Get details of a specific payment link
get_transaction
Get details of a specific transaction
initiate_terminal_payment
This requires the terminal serial number and the payment amount in COP. Trigger a payment on a physical terminal
list_payment_methods
List accepted payment methods
list_terminals
) currently linked to your Bold merchant account, including their serial numbers and connectivity status. List all bound payment terminals
list_transactions
List recent payment transactions
list_webhooks
List configured webhooks
refund_payment
The refund is processed back to the original payment method and may take 5-10 business days to reflect on the cardholder's statement. Issue a refund for a processed payment
Example Prompts for Bold in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Bold immediately.
"Show me all the datáfono terminals connected to my Bold account."
"Create a payment link for 150,000 COP for the invoice #INV-2024-089."
"List all transactions from the last 7 days and show me the total processed."
Troubleshooting Bold MCP Server with LangChain
Common issues when connecting Bold to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersBold + LangChain FAQ
Common questions about integrating Bold MCP Server with LangChain.
How does LangChain connect to MCP servers?
langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.Which LangChain agent types work with MCP?
Can I trace MCP tool calls in LangSmith?
Connect Bold with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Bold to LangChain
Get your token, paste the configuration, and start using 14 tools in under 2 minutes. No API key management needed.