fast-agent

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Code · Vendor site 2026-10-04

fast-agent is an open-source Python framework for building, running, and evaluating MCP-native agents, workflows, and servers. Documentation covers agent cards, MCP transports, model routing, and deployment patterns for local or hosted agent development.

Updated 2026-10-04View sources

Official website

Category: Code
Free access: fast-agent is open source under the evalstate/fast-agent GitHub repository with free documentation access.
API access: Framework focuses on MCP server and client integrations rather than a proprietary hosted API product.

Is fast-agent right for you?

A good fit for

Developers prototyping MCP-connected agents who want configurable workflows, evaluation hooks, and local agent homes.

Before you choose

You run agents on your infrastructure; the project site does not sell a managed fast-agent cloud tier.

Build MCP agents faster

fast-agent documentation targets developers who need structured agent definitions, MCP wiring, and evaluation tooling in one framework.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
MCP-native design	Homepage meta describes MCP-native agents, workflows, and servers.	Facts sourced	2026-10-04
Open source	Documentation header links to the evalstate/fast-agent GitHub repository.	Facts sourced	2026-10-04
Agent configuration	Core concepts guide explains agent cards, packs, and MCP server installation paths.	Facts sourced	2026-10-04

Understand the total cost

fast-agent pricing & plans

Free

fast-agent is open source under the evalstate/fast-agent GitHub repository with free documentation access.

Access: fast-agent is open source under the evalstate/fast-agent GitHub repository with free documentation access.

Explore pricing & history

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The practical questions

Frequently asked questions

What is fast-agent used for?

Does fast-agent have a free plan?

fast-agent is open source under the evalstate/fast-agent GitHub repository with free documentation access.. This record lists ongoing free access; check the plan limits before starting.

How much does fast-agent cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use fast-agent through an API?

Framework focuses on MCP server and client integrations rather than a proprietary hosted API product.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

You run agents on your infrastructure; the project site does not sell a managed fast-agent cloud tier.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

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Reviewed vendor source

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2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.