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Credits · no card, no payment

Credits for hackathons and startups.

If you are building an AI agent that needs its own email address, at a hackathon or in an early-stage company, we give you a paid plan for a while so the limits don’t get in the way. There are two separate offers with their own terms: one for hackathons, one for startups. You get a code; you redeem it in the dashboard.

Credits apply during the public beta and after it. Agentboxd is free during the beta, and a code raises your workspace above the Free limits right away; it keeps running until its end date, whenever the beta ends.

POST /platform/promo/redeem

Hackathons

For organisers: one code for all participants, and a prize for the winners. Plan details on Pricing.

Every participant
Builder, free for 1 month
25,000 emails a month, 100 inboxes, 10 custom domains and 1,000 reply drafts. Organisers get one shared code for everyone at the event.
Winners
Team, free for 6 months
A prize for the winning teams: 150,000 emails a month, 1,000 inboxes, 50 custom domains and 10 seats. The organisers tell us who won and we send each winning team its own code.

GET /platform/testimonials

What builders said

Word for word, shared with their permission. Each one says where it was said.

  • Honestly, Agentboxd is exactly what I'd been looking for. Real inboxes for an agent, with phishing and prompt injection scores already on every email, saved me days of work. The attachment text extraction was a nice surprise too.

    Aivaras Navardauskas, Builder, AI + Cybersecurity track · Red Flag, a scam checker: forward a suspicious email, get a verdict in about 15 svia email, ForgeHacks 2026ForgeHacks participant, received a free Builder plan

Startup programme

A separate offer from the hackathon one. Organising something that fits neither? Ask anyway.

Early-stage startups
Team for 6 months
150,000 emails a month, 1,000 inboxes, 50 custom domains, 10 seats and two years of mail retention, for a company building an agent product.

Who qualifies

  • Hackathons: an event, online or in person, where teams build with AI agents. Tell us its name, dates, expected number of participants and a link. After the event, tell us which teams won.
  • Startups: a company under about three years old and without large funding rounds, building a product in which agents send or receive email. Accelerator and incubator cohorts count. Tell us what you are building and roughly how much mail you expect.
  • Everyone follows the same sending rules as paying customers: one-to-one mail to people who expect it, no bulk or cold campaigns.

mailto:hello@agentboxd.com

How to apply

  1. Write to hello@agentboxd.com with the details above. A person reads every request, usually within two working days.
  2. We send you a code. A hackathon’s shared code works for every participant until the date on the code; each winning team gets its own Team code after the event.
  3. Sign in (free, no card), open Settings → Redeem a code and enter it. The workspace moves to the new plan at once.

How codes work

  • A code only ever raises your plan. A workspace already on that plan or a higher one can’t use it, and nothing you pay for is ever lowered by a code.
  • One code at a time per workspace, and each code once per workspace.
  • When the period ends, the workspace goes back to the plan it had before, automatically. We email the owners a week before. Nothing is charged: there is no card on file.
  • Going back to Free also means Free’s limits again, including its mail retention of 30 days: older mail is deleted at the next nightly clean-up. Label what you want to keep with keep, or ask us to raise your limits before the end.
  • We may revoke credits that are used for spam or other abuse, as with any plan.