Boundary AI

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Assistant · Vendor site 2026-10-04

Boundary AI publishes BAML (Basically A Made-up Language), an open-source language and toolchain for building reliable AI agents with TypeScript-like syntax, strict typing, tracing, and multi-language runtimes. It targets observability, AI functions, workflow primitives, and incremental adoption in Python, TypeScript, Rust, Go, and more.

Updated 2026-10-04View sources

Official website

Category: Assistant
Free access: BAML is free and open source and runs entirely on your machine
API access: Not confirmed

Is Boundary AI right for you?

A good fit for

Developers building agent workflows who want typed AI functions, tracing, and portable runtimes instead of ad hoc prompts.

Before you choose

Boundary Cloud observability and team controls are listed as coming later; local OSS has no hosted subscription today.

Modern languages for agents

Boundary argues mainstream languages were not built for agents and introduces BAML with TypeScript-like readability, Rust-grade correctness, fast compiles, and portable runtimes for incremental adoption.

What it can do

Features & capabilities

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

Capability	Value	Evidence	Checked
Agent-first language	BAML adds AI functions, streaming, batching, and workflow primitives with a strict type system.	Facts sourced	2026-10-04
Tracing	Traces every function locally with always-on observability smaller than sampled OTEL approaches.	Facts sourced	2026-10-04
Open source	Pricing page states BAML is free OSS and never calls Boundary servers during normal use.	Facts sourced	2026-10-04

Understand the total cost

Boundary AI pricing & plans

Free

BAML is free and open source and runs entirely on your machine (Boundary pricing)

Access: BAML is free and open source and runs entirely on your machine (Boundary pricing)

Explore pricing & history

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The practical questions

Frequently asked questions

What is Boundary AI used for?

Does Boundary AI have a free plan?

BAML is free and open source and runs entirely on your machine. This record lists ongoing free access; check the plan limits before starting.

How much does Boundary AI 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 Boundary AI through an API?

Not confirmed. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Boundary Cloud observability and team controls are listed as coming later; local OSS has no hosted subscription today.

Price history

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

How this profile is supported

Identity and profile

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.