The operating system of two · Built on Claude
Brief your team. Watch the work move. Stay in command of every action — Atrium does the execution, you see exactly what it read, what it decided, and what it chose not to do.
The operating system of two.
Your team is assembling tools faster than they can run them.
AI is being bolted on, not built in.
What you get on day one
You stay in command.
Atrium pauses before anything consequential. Approval gates are a first-class part of the interface — not a settings page you have to find.
Atrium wants to send 47 emails.
Your tools work as one stack.
Connect Notion, Slack, Gmail, Linear, Stripe, and more. Atrium reads and writes across them in a single briefed operation — no per-tool configuration required.
Active integrations
Nothing happens without a record.
Every action Atrium takes is logged — what it read, what it decided, what it skipped, and why. Export the full trace as JSON or CSV at any time.
READ: contracts/q3.md, stripe.customers
DECIDED: draft revised pricing email
SKIPPED: slack#all-hands (confidence 41%)
Atrium gets better when you override it.
The confidence gradient shows you where Atrium is certain and where it is asking. Every override you make sharpens the next run.
87% — acting autonomously
Brief once. Watch four operations move.
Four real operations — cycling every 4 seconds
Decision
Approve Q3 pricing update
You set the intent and constraints
GRID
Execution
Drafts email · Updates Stripe · Schedules HubSpot sequence
Atrium executes, traces, confirms
Every action, on the record
Export the full trace at any time. The record never disappears.
Trigger
Send Q3 pricing update to enterprise tier
09:14:02
Send Q3 pricing update to enterprise tier
Constraint: do not modify contracts/legacy.md
09:14:03
notion://pricing/q3-enterprise-v3.md — 2,140 tokens
stripe://customers?tier=enterprise — 47 records
hubspot://contacts?segment=tier1 — 47 matches
09:14:05
Draft personalized email per Stripe segment
Template: pricing-update-q3, 47 variants
09:14:07
gmail: 47 drafts queued — awaiting approval gate
hubspot: activity logged on 47 contact records
notion: execution ref written to /runs/q3-pricing-001
09:14:07
slack://channels/all-hands — confidence 41%
Flagged: broadcast to all-hands before approval
Every step is stored. Every step is exportable. Nothing happens that you cannot undo.
Built for how you work
Solo Operator
What you decide
Set context, approve outputs, define what Atrium should never do without you
What Atrium handles
Full workflow runs — content, admin, client comms — with a single approval gate at the end
What ships
Solo operators ship weekly client deliveries without an ops hire. Atrium pulls Notion CRM status, formats 18 per-client summaries, queues Gmail send-later for Monday 9 am, logs read receipts back to the project.
Small Team
What you decide
Team lead briefs campaigns, approves budgets, sets brand constraints
What Atrium handles
Atrium generates variants, routes to the right integration, confirms completion across Slack and Linear
What ships
Small teams run paid campaign launches end-to-end. Atrium generates Meta ad variants from brief, tags assets in Notion, opens Linear epics per ad group, posts launch summary to #growth with creative links attached.
Mid-Market Ops
What you decide
Ops lead owns the approval chain, exception handling, and escalation policy
What Atrium handles
Atrium processes at volume — refunds, onboarding, renewals — writing back to Salesforce, Zendesk, and Stripe
What ships
Mid-market ops teams close renewal queues in hours, not days. Atrium reads Salesforce records, drafts renewal emails segmented by ARR tier, routes $50k+ accounts to account manager gate, submits remainder to Stripe auto-renew.
Enterprise
What you decide
Legal, finance, and operations each hold specific approval gates in the chain
What Atrium handles
Atrium orchestrates across systems, respecting each gate, logging every action for the compliance audit
What ships
Enterprise teams run quarterly contract reviews with a full compliance trail. Atrium flags renewal dates and clause deviations, routes to Legal gate, then Finance gate, exports full decision log as PDF for compliance record.
Built for the buyers your security team has to answer to
Claude Partner Network
GRID is a member of the Claude Partner Network. Atrium runs on Claude.
Security controls
Security controls framework documented. SOC 2 Type II audit planned. Full security policies on request.
EU AI Act — HITL aligned
Approval gates are structural. Atrium cannot bypass the human step. Audit-ready for the August 2026 enforcement window.
BYOK
Bring your own Anthropic API key. The model call never touches GRID servers. Your key, your billing.
Full audit export
Every Atrium action — read, decide, act, skip — exportable as structured JSON or CSV at any time.
Reversible by default
Actions taken within reversal windows can be undone. The path back is part of the design, not an afterthought.
No training on your data
Your data does not train Anthropic models. Operator tier runs BYOK exclusively. You are not the product.
Pricing
Operator
Free during beta.
Open to the first 500 operators. No card required.
One Environment, full Atrium access
Bring your own Anthropic API key
Full trace log and audit export
All integrations included
Team
$29 / seat / month
Per Environment. Unlimited members in early access.
Everything in Operator
Multi-seat Environments with shared trace logs
Approval chain routing across team members
Up to 5 Environments
Enterprise
Contact us.
EU AI Act compliance documentation included. SAML SSO, dedicated audit export, custom HITL gates.
Everything in Team
SAML SSO and SCIM provisioning
Dedicated audit export pipeline
Custom HITL gate configuration
Full detail at grddd.com/pricing
What you will see in your first hour
Your first Environment is live — connected to Notion, Gmail, and one integration of your choice. The trace log is already showing every read and decision Atrium makes in real time.
Atrium has completed one real workflow against your live data. Not a sandbox. Not a demo. A task you briefed, with the full trace available to review, export, or share.
You have hit the approval gate — seen what Atrium read, what it decided, and what it chose not to do — and made your first override or approval. That signal is already improving the next run.
Early access
Access is opening to the first 500 operators. Drop your email. We reach out when your Environment is ready.