Coding & Debugging
PromptBeginner5 minmarkdown
The official MCP Python SDK provides FastMCP
a high-level framework for building MCP servers. It provides:
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Coding & Debugging
PromptBeginner5 minmarkdown
This document provides Python-specific best practices and examples for implementing MCP servers using the MCP Python SDK. It covers server setup
tool registration patterns
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Coding & Debugging
PromptBeginner5 minmarkdown
- [ ] Tools enable complete workflows
not just API endpoint wrappers
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Coding & Debugging
PromptBeginner5 minmarkdown
* This server provides tools to interact with Example API
including user search
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Coding & Debugging
PromptBeginner5 minmarkdown
const data = await apiRequest(params.limit
params.offset);
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Writing & Content
PromptBeginner5 minmarkdown
textContent = JSON.stringify(output
null
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Writing & Content
PromptBeginner5 minmarkdown
content: [{ type: text
text: textContent }]
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Coding & Debugging
PromptBeginner5 minmarkdown
│ └── constants.ts # Shared constants (API_URL
CHARACTER_LIMIT
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Coding & Debugging
PromptBeginner5 minmarkdown
- **DO NOT use**: Old deprecated APIs such as `server.tool()`
`server.setRequestHandler(ListToolsRequestSchema
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Writing & Content
PromptBeginner5 minmarkdown
content: [{ type: text
text: JSON.stringify(output) }]
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Coding & Debugging
PromptBeginner5 minmarkdown
<question>Look for pull requests that modified files in the /api directory and were merged between January 1 and January 31
2024. How many different contributors worked on these PRs?</question>
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Writing & Content
PromptBeginner5 minmarkdown
After inspecting the content
create 10 human-readable questions:
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Writing & Content
PromptBeginner5 minmarkdown
- Goal: identify specific content (e.g.
users
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Coding & Debugging
PromptBeginner5 minmarkdown
After understanding the API and tools
USE the MCP server tools:
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Research & Learning
PromptBeginner5 minmarkdown
- Example: if finding a paper name
be SPECIFIC enough so answer is not confused with papers published later
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Writing & Content
PromptBeginner5 minmarkdown
- Look at old content (e.g.
conversations that have ended
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Writing & Content
PromptBeginner5 minmarkdown
return { content: [{ type: text
text: result }] };
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Coding & Debugging
PromptBeginner5 minmarkdown
- Store API keys in environment variables
never in code
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Coding & Debugging
PromptBeginner5 minmarkdown
- **Python**: `{service}_mcp` (e.g.
`slack_mcp`)
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Coding & Debugging
PromptBeginner5 minmarkdown
Prioritize comprehensive API coverage. List endpoints to implement
starting with the most common operations.
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Coding & Debugging
PromptBeginner5 minmarkdown
- [🐍 Python Guide](./reference/python_mcp_server.md) - Module organization
dependencies
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Coding & Debugging
PromptBeginner5 minmarkdown
Review the service's API documentation to identify key endpoints
authentication requirements
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Coding & Debugging
PromptBeginner5 minmarkdown
- **Language**: TypeScript (high-quality SDK support and good compatibility in many execution environments e.g. MCPB. Plus AI models are good at generating TypeScript code
benefiting from its broad usage
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Coding & Debugging
PromptBeginner5 minmarkdown
Agents benefit from concise tool descriptions and the ability to filter/paginate results. Design tools that return focused
relevant data. Some clients support code execution which can help agents filter and process data efficiently.
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