Code · Vendor site 2026-10-04
Metalama is PostSharp's open-source patterns and architecture toolkit for C# built on Roslyn. It lets teams implement design patterns and architecture constraints at compile time, validate structure as developers type, and ship productivity tooling through Community and paid Professional editions.
C# teams adopting aspect-oriented and architecture-as-code patterns who want Roslyn-powered compile-time enforcement.
Professional licenses list perpetual USD prices per user with one year of updates rather than explicit monthly subscription amounts on the pricing page.
Metalama extends C# with compile-time patterns, architecture validation, and IDE tooling, offered through free open-source and Community editions plus paid Professional licenses.
What it can do
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Compile-time patterns | Homepage tagline states Metalama implements C# design patterns at compile time using Roslyn. | Facts sourced | 2026-10-04 |
| Community edition | Pricing page offers a free Community edition with Visual Studio tools for up to three users or non-commercial use. | Facts sourced | 2026-10-04 |
| Professional licensing | Metalama Professional lists $119 per user in USD with architecture validation and code fix toolkits. | Facts sourced | 2026-10-04 |
Understand the total cost
Free
Free
Metalama Open Source and Metalama Community editions are free, with Community adding Visual Studio tooling for individuals and companies up to three users.
BuildAI.SpaceBuildAI lets users describe apps in natural language and generates working web apps with hosting, digital employee agents, and payment integrations on paid tiers. Monthly plans scale builder messages, AI credits, and published app limits from Rocket through Galaxy.
Explore tool
AmptThe site emphasizes rapid full-stack workflows, built-in CI/CD, preview environments, and pay-as-you-go tiers for solo developers through enterprise self-hosting.
Explore tool
OneCompilerOneCompiler is an online IDE and compiler platform for writing, running, and sharing code in 110+ languages and databases. It adds AI-assisted building blocks, studio time, and team-oriented paid tiers on top of a free compiler that supports unlimited code executions with daily AI credit limits.
Explore toolThe practical questions
Metalama is PostSharp's open-source patterns and architecture toolkit for C# built on Roslyn. It lets teams implement design patterns and architecture constraints at compile time, validate structure as developers type, and ship productivity tooling through Community and paid Professional editions.
Metalama Open Source and Metalama Community editions are free, with Community adding Visual Studio tooling for individuals and companies up to three users.. This record lists ongoing free access; check the plan limits before starting.
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.
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
Professional licenses list perpetual USD prices per user with one year of updates rather than explicit monthly subscription amounts on the pricing page.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.