Anthropic Agent SDK Pricing

open sourceopen source · MITlast verified September 6, 2026official site ↗

At a glance

100% free and open source under MIT/Apache-2.0 licenses ($0 software cost). Anthropic Agent SDK and reference architectures provide production-ready building blocks for Claude-powered autonomous agents with zero licensing fees; users pay only direct Anthropic API token consumption.

Self-hosting cost

Anthropic Agent SDK is open source under the MIT license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

Free & cheaper MCP Servers

same category, free plan or open-source license

MCP Inspectoropen sourceFree and 100% open source under the MIT license ($0 software cost). mcp-inspector is the official Model Context Protocol developer testing suite, running entirely locally via npx/Node.js with no subscription tiers, cloud fees, or telemetry.MCP-Scanopen source100% free and open-source Model Context Protocol (MCP) security auditing and vulnerability scanner developed by Invariant Labs (Apache-2.0 License). Analyzes MCP client configurations, tool schemas, and server definitions to detect prompt injection vectors, malicious tool poisoning, cross-server shadowing, and unintended permission escalation at zero software cost.GitHub MCP Serveropen sourceFree and 100% open source under the MIT license. GitHub MCP Server has no licensing fees or subscription tiers; API operations run locally or via remote endpoints against standard GitHub account API rate limits.MCP Registryopen sourceMCP Registry is completely free and open-source under the MIT license. Developers can freely search, inspect, and publish server metadata across the Model Context Protocol ecosystem.

Anthropic Agent SDK overview →alternatives →

FAQ

How much does Anthropic Agent SDK cost?

Does Anthropic Agent SDK have a free plan?

Yes — Anthropic Agent SDK is open source and free to use.

Can you self-host Anthropic Agent SDK for free?

Anthropic Agent SDK is open source under the MIT license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

What are free or cheaper Anthropic Agent SDK alternatives?

MCP Inspector, MCP-Scan, GitHub MCP Server are in the same category with a free plan or open-source license.

pricing is editorial catalog data (last verified September 6, 2026) — vendors change plans; confirm on the official site before you buy. Reuse this data under CC-BY 4.0 via /data.