How to Use Claude Duet to Repair Your Credit (2026)

Claude Duet can help you repair your credit by watching the work that usually slips: the 30-day window after a dispute, the letter that comes back, the next round you meant to send. Duet is Anthropic's personal agent. It runs on its own cloud computer and keeps working after you close the app. Connect 850ai to your Claude account and Duet can read your real three-bureau report, draft each dispute, and hand you the letter to approve. 850ai mails it only after you confirm.

What Claude Duet is

Anthropic opened Duet as a research preview on October 21, 2026. It is for Claude Pro and Max subscribers in the US, by waitlist, on iOS, Android, and claude.ai. It is included in those plans but uses your plan's limits. Duet runs on Claude Opus 5.5 and you can't pick another model. It is not on Team or Enterprise plans yet.

Duet carries over the memory, skills, and connectors you already set up in Claude. It asks before it sends a message, makes a payment, signs something, or deletes something. It never sees your passwords, it can't make calls or send texts, and by default it declines requests for credit card numbers and government ID. It checks your connected apps on a schedule, not the moment something changes.

Connect 850ai to Claude Duet

1. On claude.ai or in the Claude desktop app, open Customize → Connectors (Settings → Connectors in some versions).
2. Choose Add, then Custom, then Web.
3. Name it 850ai and paste this URL: https://app.850boostclub.com/api/mcp
4. Leave the sign-in on the default. Claude opens the 850ai page. Log in with the email that has your credit report and approve.
5. Open Duet and ask, "Which 850ai tools can you use?" It should list them.

You can see and revoke the connection any time on the 850ai AI Connections page. Revoking it cuts off access right away.

What to ask Duet to do

• Read the report. "Pull my 850ai report and list every account that looks wrong, with the reason."
• Draft the round. "Draft a dispute for each one and show me the letters before anything is sent."
• Watch the clock. "Tell me when each bureau's 30-day window closes and what came back."
• Plan the next step. "If an account was verified, draft the next letter and tell me why."

Duet stops for your approval before anything goes out. 850ai then prints the letter and mails it USPS First Class with a postage stamp. Send is $59.99 a month. On Auto ($99.99 a month), 850ai also writes creditor and collector letters, sends by email and fax, and sends every round automatically after a 24-hour review. On AutoMax ($199.99 a month), it also answers company responses and files a CFPB complaint for every account.

Keep these off the table

• Don't paste your Social Security number or a photo of your ID into the chat. 850ai already has what it needs from your account.
• Don't approve a payment to a collector from chat. Duet asks before any payment, so say no and decide yourself: in some states a payment on an old debt can restart the time limit to sue.
• Don't treat Duet's summary as the bureau's answer. Read the actual response letter before the next round.

Claude Duet vs ChatGPT Dots vs Meta Muse

Prefer OpenAI? Read how to use ChatGPT Dots to repair credit. On Meta's agent, see Meta Muse for credit repair. For the model under Duet, see Claude Opus 5.5 for credit.