Independent review. IonBin has no partnership with Northwest Registered Agent and was not paid for this page. Our evaluation is our own, based on public documentation and our research. Product names are trademarks of their owners and are used for identification only. How disclosure works.
Registered-agent and company-formation service. Its MCP server lets AI clients look up your companies, filings and invoices and pay invoices after sign-in. Requirements vary by state; check your Secretary of State before filing. Not legal advice.
IonBin provides general information and software comparisons, not tax, legal, accounting or financial advice. Tax and legal rules vary by situation and jurisdiction; consult a qualified professional (CPA, enrolled agent or attorney) before acting.
AI tools can make mistakes. Verify every figure against the original documents and official IRS or state guidance before filing or signing.
Redact Social Security numbers, account numbers and EINs before uploading documents to any AI assistant, and check its data-retention settings. Upload originals only to the filing or signing software.
Requirements vary by state. File through official sources such as the USPTO trademark search and your state’s Secretary of State site.
Northwest lists LLC packages at $79 (formation and registered agent), $179 (Deluxe, adds EIN and operating agreement) and $199 (Premium, adds same-day processing). Registered-agent service is free for the first year, then $125/year with no contract. State filing fees depend on the state. Checked 2026-10-17. source ↗
The MCP server exposes the same tools as Mark, Northwest's in-portal assistant: reading and managing companies, filings, invoices, domains, email and phone service. It can pay invoices with a card on file. Northwest says it runs its own models and does not train on your data. source ↗
How Northwest Registered Agent connects to each AI platform: native connector or MCP, API through code the agent writes, browser control, or file upload.
| Platform | MCP / connector | API (agent-written code) | Browser | Upload / export |
|---|---|---|---|---|
| Claude (incl. Claude Code) | Not documented Northwest Registered Agent has an official MCP server and Claude (incl. Claude Code) supports MCP, but Northwest Registered Agent's docs don't name this pairing. Auth setup may differ. Northwest Registered Agent MCP docs ↗Claude (incl. Claude Code) MCP docs ↗ | No documented route | Confirmed Claude Code with the Claude in Chrome extension (Chrome, Edge and other Chromium browsers) Claude (incl. Claude Code) browser docs ↗ | Confirmed Export from Northwest Registered Agent, then works on the files in your project; chat accepts attachments Claude (incl. Claude Code) docs ↗ |
| OpenAI Codex | Not documented Northwest Registered Agent has an official MCP server and OpenAI Codex supports MCP, but Northwest Registered Agent's docs don't name this pairing. Auth setup may differ. Northwest Registered Agent MCP docs ↗OpenAI Codex MCP docs ↗ | No documented route | Confirmed Only in the ChatGPT desktop app; not in the Codex CLI or IDE extension OpenAI Codex browser docs ↗ | Confirmed Export from Northwest Registered Agent, then works on local repositories OpenAI Codex docs ↗ |
| Google Antigravity | Not documented Northwest Registered Agent has an official MCP server and Google Antigravity supports MCP, but Northwest Registered Agent's docs don't name this pairing. Auth setup may differ. Northwest Registered Agent MCP docs ↗Google Antigravity MCP docs ↗ | No documented route | Confirmed Browser subagent via /browser, documented as an Antigravity App feature; the IDE has separate browser docs Google Antigravity browser docs ↗ | Confirmed Export from Northwest Registered Agent, then works on local projects and worktrees Google Antigravity docs ↗ |
Confirmed means both the tool's and the platform's official docs describe that route (links in the cell); IonBin has not tested every pairing. Not documented means it may work, but no official docs describe that route end to end. Checked Oct 17, 2026.
| Level | Status | Detail / source |
|---|---|---|
| Native connector / MCP | Yes | Official docs ↗ |
| API / CLI | No | No public REST API documented; the MCP server is the documented programmatic access (2026-10-17) |
| Browser-only | No | Web app; also reachable programmatically |
| Bulk upload / import | No | — |
Recorded Oct 17, 2026. Setup and plan limits vary; check the vendor's docs. How levels are assigned.
Via its official MCP server, from MCP-capable platforms such as ChatGPT, Claude, Gemini (Google), Google Antigravity, OpenAI Codex.
No long-form review yet. Verdict is based on research, not hands-on testing.
Online business formation, compliance filings and legal services. LegalZoom's connector lets supported AI assistants compare entity types, find attorney consultations and prepare documents, with sign-in required for account actions. Not legal advice.
US company formation for founders anywhere, with compliance, bookkeeping and tax add-ons. Its MCP server lets an AI agent run a Wyoming LLC formation; filing is irreversible. Requirements vary by state; treat AI output as research notes, not advice.
Incorporation (Delaware or Wyoming), registered agent, compliance, mailroom, accounting and tax filing for startups. No MCP server is documented; a partner Incorporation API exists for platforms. Requirements vary by state; check official filings yourself.
