Free to write with your own agent.
The app is free and open source. Pay only for the StashBase agent, when you have no agent of your own.
Finished in Stripe? Return to StashBase to check your subscription. The app confirms payment securely; you do not need to sign in on this website.
Return to StashBaseIf the button does not open the app, switch to StashBase and open Settings → Agents.
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Paid plans renew automatically at the listed monthly price. Each plan includes its own monthly Agent allowance; Free and paid allowances do not stack. The free monthly period starts with your first hosted AI request. Plus is free for your first subscription month when you add a card and enable automatic renewal, then renews at the listed monthly price. Stripe emails a reminder seven days before the trial ends. Unused credits do not roll over. Cancel through Manage or cancel subscription; access continues until the current period ends.
Plan changes apply after payment confirmation, with prorated charges or credits shown in Stripe. Changing plans preserves usage within the current billing period. If renewal payment fails, paid credits end when your paid period expires; Free credits remain available.
Use the same StashBase account here and in the desktop app. After subscribing, return to the app; your credits refresh automatically.
Questions
Is StashBase free?
The app is. It is free and open source under Apache 2.0, and writing with your own Claude Code, Codex or Antigravity costs nothing extra. Free includes hosted AI credits each month, starting with your first hosted AI request. No credit card required. Plus offers more monthly credits for regular writing, and Pro offers ten times the Plus allowance for frequent drafting and revision. Free credits do not stack with paid credits.
I already pay for Claude. Do I need Plus or Pro?
No. Claude Code, Codex and Antigravity run on the Anthropic, ChatGPT or Google account you already have, and StashBase adds nothing on top. Plus and Pro are for writing with Default Agent, when you have none of them.
How do I subscribe to Plus or Pro?
Sign in on this page using the same StashBase account as the app, then choose a plan. Stripe handles payment. You can also open this page from Settings → Agents → Plans and billing.
What happens when my agent credits run out?
Default Agent pauses until your credits renew, or you can subscribe to a paid plan or move from Plus to Pro. Paid credits are counted across your monthly billing period. Upgrading increases your limit and keeps the credits already used in that period. Browsing, editing, keyword search, Claude Code, Codex and Antigravity keep working.
How does the free first month of Plus work?
Your first subscription is eligible for one free month of Plus, including the full Plus monthly allowance. Add a card and enable automatic renewal at checkout. After the first month, Plus renews automatically at the listed monthly price. Cancel before renewal to avoid a charge. Stripe emails a reminder seven days before the trial ends. Cancelling during the trial keeps Plus until it ends. Moving to Pro during the trial ends it, and Pro starts right away at its full monthly price. Previous subscribers and accounts that already used the offer are not eligible.
Do you offer discounts?
Eligible first-time Plus subscriptions receive the first-month offer automatically; it cannot be combined with another promotion. For other subscriptions, enter your promotion code at Stripe checkout. Each campaign has its own discount, eligible plans, duration, expiry, and redemption limit. Checkout shows the discount and renewal terms before you pay. Your plan’s credits stay the same.