AI Infrastructure & MLOps Free

FastMCP

Python framework for building, connecting, and deploying MCP applications

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PricingFree
Starting price$0 software
Free planYes
Free trialYes
APINo
Open sourceYes
DeploymentSelf Hosted
Last verifiedAugust 1, 2026
Overview

Tool overview

FastMCP is listed under AI Infrastructure & MLOps AI tools.

Summary

What is FastMCP?

FastMCP is an Apache-2.0 Python framework for creating Model Context Protocol servers, clients, and interactive apps. It generates schemas from typed functions, supports authentication and middleware, connects local or remote servers, and can be deployed through standard self-hosted infrastructure or Prefect Horizon.

Best fit

Best for

Python teams building controlled MCP servers, clients, and agent integrations

Audience

Who is it for?

Python developersAI platform teamsMCP server buildersAgent infrastructure engineers
Recommendation

Decision note

Accepted for Preview after independent V411 official-source research. Apply only after failures = 0, warnings = 0, unmapped = 0, and review of controlled fields, Arabic v2 parity, outreach, affiliate status, logo QA, rebrand handling, and explicit clears.

Capabilities

Key features

Typed Python tools, resources, and prompts

MCP servers, clients, proxies, and apps

Authentication, middleware, and transport support

OpenAPI and FastAPI server generation

Workflows

Use cases

Building custom MCP servers

Connecting applications to MCP services

Wrapping existing APIs for agents

Testing and deploying MCP tools

Strengths

Pros

  • Free under Apache-2.0
  • Broad MCP feature coverage
  • Active releases and detailed documentation
Considerations

Limitations

FastMCP simplifies protocol implementation but does not secure or operate an application automatically. Teams must validate every tool, restrict permissions, protect credentials, handle prompt injection, monitor remote calls, and pin compatible versions before production deployment.

Cost

Pricing details

Pricing modelFree
Starting price$0 software
Free planYes
Free trialYes
Pricing context

Billing options

Free open-source softwareExternal infrastructure costs
Pricing context

Pricing note

The FastMCP framework is free and open source under Apache-2.0. Model, hosting, storage, gateway, and observability costs are external. Prefect Horizon is a separate enterprise deployment product; its commercial terms are not the price of the FastMCP package.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

Model Context Protocol

OpenAPI

FastAPI

Claude Desktop

Prefect Horizon

Specs

Technical details

PlatformsWeb
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseApache-2.0
DeploymentSelf Hosted
CompanyFastMCP / Prefect
Launch year2024
Current version3.4.4
Models / versionsFastMCP Servers FastMCP Clients FastMCP Apps
Editions / plansFastMCP open-source package Prefect Horizon separately
Data confidenceHigh
Last verifiedAugust 1, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

FastMCP is an Apache-2.0 Python framework for creating Model Context Protocol servers, clients, and interactive apps. It generates schemas from typed functions, supports authentication and middleware, connects local or remote servers, and can be deployed through standard self-hosted infrastructure or Prefect Horizon.
Python teams building controlled MCP servers, clients, and agent integrations
The listed pricing model for FastMCP is Free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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