Heymarket MCP Server for Pydantic AIGive Pydantic AI instant access to 9 tools to Create Contact, Get Chat History, Get Message Details, and more
Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Heymarket through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.
Ask AI about this App Connector for Pydantic AI
The Heymarket app connector for Pydantic AI is a standout in the Communication Messaging category — giving your AI agent 9 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
agent = Agent(
model="openai:gpt-4o",
mcp_servers=[server],
system_prompt=(
"You are an assistant with access to Heymarket "
"(9 tools)."
),
)
result = await agent.run(
"What tools are available in Heymarket?"
)
print(result.data)
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 Heymarket MCP Server
Connect your Heymarket account to any AI agent and take full control of your business text messaging and SMS workflows through natural conversation.
Pydantic AI validates every Heymarket tool response against typed schemas, catching data inconsistencies at build time. Connect 9 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
What you can do
- SMS Orchestration — Send and receive text messages programmatically across your business numbers
- Shared Inbox Management — Monitor active chat threads and manage team-based conversations in real-time
- Contact Relationships — Create and update detailed contact profiles to maintain a high-fidelity customer database
- Team Collaboration — Retrieve staff member directories and manage assignments for inbound message routing
- Message Monitoring — Track outbound message delivery status and retrieve complete conversation histories for audit
The Heymarket MCP Server exposes 9 tools through the Vinkius. Connect it to Pydantic AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
All 9 Heymarket tools available for Pydantic AI
When Pydantic AI connects to Heymarket through Vinkius, your AI agent gets direct access to every tool listed below — spanning business-sms, mms-messaging, shared-inbox, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.
Register a new contact
Get conversation history
Get details for a message
List active conversations
Supports filtering by phone number. List Heymarket contacts
List Heymarket workspace members
Requires member_id and to_number. Send an SMS or MMS message
Modify chat state or assignment
Modify an existing contact
Connect Heymarket to Pydantic AI via MCP
Follow these steps to wire Heymarket into Pydantic AI. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install Pydantic AI
pip install pydantic-aiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.py and run: python agent.pyExplore tools
Why Use Pydantic AI with the Heymarket MCP Server
Pydantic AI provides unique advantages when paired with Heymarket through the Model Context Protocol.
Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Heymarket integration code
Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
Dependency injection system cleanly separates your Heymarket connection logic from agent behavior for testable, maintainable code
Heymarket + Pydantic AI Use Cases
Practical scenarios where Pydantic AI combined with the Heymarket MCP Server delivers measurable value.
Type-safe data pipelines: query Heymarket with guaranteed response schemas, feeding validated data into downstream processing
API orchestration: chain multiple Heymarket tool calls with Pydantic validation at each step to ensure data integrity end-to-end
Production monitoring: build validated alert agents that query Heymarket and output structured, schema-compliant notifications
Testing and QA: use Pydantic AI's dependency injection to mock Heymarket responses and write comprehensive agent tests
Example Prompts for Heymarket in Pydantic AI
Ready-to-use prompts you can give your Pydantic AI agent to start working with Heymarket immediately.
"Send an SMS 'Your order is ready!' to '+15551234567' using member 'M123'."
"List all active chat conversations from the shared inbox."
"Update contact 'C456' with first name 'John' and add a note."
Troubleshooting Heymarket MCP Server with Pydantic AI
Common issues when connecting Heymarket to Pydantic AI through the Vinkius, and how to resolve them.
MCPServerHTTP not found
pip install --upgrade pydantic-aiHeymarket + Pydantic AI FAQ
Common questions about integrating Heymarket MCP Server with Pydantic AI.
How does Pydantic AI discover MCP tools?
MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.