Introducing BuildStax: the code-first AI platformRead the launch notes

The AI agent that works.

BuildStax is code-first, but not code-only. Chat, research, create media, build websites, automate tasks, or make anything with an AI that can use real tools.

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01 Operating sequence

A run you can read,
not a leap of faith.

The work advances in visible stages. Context, intent, changes, and evidence stay connected from request to review.

  1. 01

    Ground the request.

    BuildStax maps the codebase and resolves the symbols, dependencies, and conventions relevant to the task.

    Context assembled

    14 files / 2 dependencies

  2. 02

    Approve the approach.

    The task becomes an editable sequence of steps before commands run or files change.

    Plan visible

    Scope and checks recorded

  3. 03

    Inspect the work.

    Commands, edits, and decisions stay attached to the run while the agent iterates against your configured checks.

    Diff reviewable

    Every action has a record

  4. 04

    Make the final call.

    BuildStax reports the evidence and prepares the handoff. You decide what gets committed and merged.

    Ready for review

    The merge stays yours

02 Working surface

Whole-repo context.
Task-sized attention.

BuildStax narrows a large codebase into the files, tools, and checks the current change actually needs.

Repository intelligence

Context assembled around the request.

Index ready
buildstax/12,408 files indexed

01 src/

02 auth/

03 session.ts

04 api/

05 tests/

06 session.test.ts

Resolved task contextRank

src/auth/session.ts

primary
98%

src/auth/index.ts

dependency
86%

tests/session.test.ts

coverage
81%
2 dependencies tracedConventions loadedReady to plan
01

Tool use

Run shell commands, edit files, and call your APIs with each action logged in the run.

shell / files / APIs

02

Editable plans

Review and refine the sequence before execution begins.

scope / steps / checks

03

Verification

Keep configured tests, linters, and their failures beside the change.

348 passed / 0 failed

04

Pull requests

Prepare branches, commits, and a summary diff for human review.

branch / commit / draft

03 Trust boundaries

Know what runs.
Know what leaves.

Trust starts with precise boundaries and honest availability, not a blanket security claim.

Illustrative data flowBoundaries named

Your environment

Repository Tool runtime Check runner
Selected task context

Selected model provider

Receives the context required for inference under the configured provider relationship.

Proposed work returns to review

Human review boundary

Your decision stays last.

01

Review controls

In the workflow

Plans, commands, and diffs stay visible before you decide what gets committed or merged.

See the workflow
02

Data boundaries

Policy

Task context may be sent to selected model providers for inference. Repository data is not used to train models.

Read the privacy policy
03

Enterprise controls

Planned

SSO, audit logs, procurement support, and dedicated implementation help are planned for enterprise availability.

Enterprise roadmap
04

Private deployment

Planned

Private-cloud deployment is planned for organizations with strict infrastructure requirements.

Review security details

04 Pricing and access

Request access now.
Choose a plan later.

Joining the waitlist is free and does not start a subscription. Compare planned pricing before deciding whether a paid plan fits.

Access map / 2026Preview invitations are open

01 Early access

Available now

Early access, without the commitment.

Request access in a few seconds. We are inviting people in batches while BuildStax is in preview.

$0to request access
Join the waitlist
02 / Public launchPlanned pricing

Plans from $10 / month

Compare proposed capacity tiers, annual discounts, and pay-per-token model rates before broad access opens.

Review full pricing
03 / OrganizationsTalk through requirements

Enterprise roadmap

Review planned SSO, audit, deployment, procurement, and support options for larger engineering teams.

Explore enterprise
No card requiredNo subscriptionInvites sent in batches

05 / Final handoff

Access by request

Move the code.
Keep the decision.

Keep the plan, changes, and verification connected so the next step is review, not reconstruction.

Request accessRevisit the workflow
Waitlist is not a subscriptionInvitations sent in batchesYou decide what ships