Fixa.dev
Fixa.dev is an autonomous AI software engineer that builds, runs, and debugs full-stack apps in a cloud sandbox.
The execute-then-debug loop is the right architecture for an autonomous coding agent, and Fixa is one of the few that treats running the code as part of the job rather than your problem. The $0 tier is a real trial, not a teaser. The catch is metering: usage is billed against live model costs and the Starter dollar figure isn't posted on the pricing page, so budget accordingly before you move off Free.
Verified 18h ago · liveness 73/100 · cite: rightaichoice.com/tools/fixa-dev
- Full-stack developers who want an agent to build, run, and deploy a complete app end to end
- Indie hackers shipping a paid-product MVP without standing up local infrastructure
- Agencies delivering client prototypes that need auth and payments wired in
- Developers importing an existing GitHub repo and letting the agent extend or debug it
- Non-developers — reviewing and correcting generated full-stack code is still required
- Buyers who need a posted monthly price for the paid tier before budgeting
- Projects requiring on-premise or custom cloud infrastructure
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Skip Fixa.dev if you need a posted per-seat price, a dollars-and-cents usage meter, or on-premise execution — its Starter tier shows no public dollar figure and usage is surfaced only as an in-app percentage.
Usage is metered as a monthly allowance and shown as a single percentage in-app, so you won't see a dollar figure until the bill arrives
Cheapest entry is genuinely free: GPT-6 Luna, web chat, limited agent access, no card to explore. Enterprise is custom-priced for organizations needing custom domains and team management.
In short
Fixa.dev — Fixa.dev is an autonomous AI software engineer that builds, runs, and debugs full-stack apps in a cloud sandbox. Best for Full-stack developers who want an agent to build, run, and deploy a complete app end to end, Indie hackers shipping a paid-product MVP without standing up local infrastructure, Agencies delivering client prototypes that need auth and payments wired in. Free to use.
What people actually say about Fixa.dev — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
8 mentions across 1 source (Product Hunt) · researched Jul 3, 2026.
Average across the 1 source that answered — each source counts once, not each post.
- +One-click integrations for Stripe and Supabase solve real pain points.
- +Cloud-native environment eliminates local CPU/RAM bottlenecks.
- +Autonomous self-debugging and self-healing loops reduce manual intervention.
- +Universal MCP connector enables deep custom workflow integrations.
- +Ability to browse live documentation and dynamically install dependencies.
- −Security validation for autonomous actions is unclear and concerning.
- −Complex scenarios like multi-tenant auth remain untested.
- −MCP connector authentication details are vague and incomplete.
- −No proof of handling stateful webhooks or production edge cases.
- −Single developer raises long-term support reliability questions.
- • Starter and Enterprise pricing details are not publicly disclosed
- • Premium model access likely consumes credits beyond free tier
Viability Score
How well maintained and how widely used is Fixa.dev? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Build full-stack apps autonomously in a cloud sandbox
- Run and execute generated code inside the agent workspace
- Self-debug and self-heal code that fails at runtime
- Browse the web for live API documentation mid-build
- Install dependencies dynamically during a build
- Import an existing project from GitHub
- One-click deploy to Vercel from the workspace
- One-click integrations for Stripe, Supabase, Clerk, and Vercel
- Universal MCP connector for custom tools
- Chat with the agent on the web
- Premium model roster: Claude Fable 5.1, Opus 5.5, Sonnet 5.5, Haiku 5.5, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Astra, Grok 4.7
- Download the full generated codebase on paid plans
- Command palette for quick actions
- Priority sandboxes and ad-free interface on paid plans
- Usage allowance tracked as a percentage in-app
About Fixa.dev
Fixa.dev gives an AI agent its own computer in the cloud. You type a prompt or point it at an existing GitHub repo, and the agent writes the code, installs dependencies, runs the app, and reads its own errors until something actually starts. That execute-and-verify loop is the product. Most coding agents hand back a diff and wish you luck; Fixa runs the thing first. The workspace comes with one-click connections for Stripe, Supabase, Clerk, and Vercel, plus a universal MCP connector for anything outside that list. When the agent runs into an API it doesn't recognise, it can browse the web for live documentation instead of guessing from training data. Deployment to Vercel happens in-workspace, and on paid plans you can download the whole generated codebase whenever you want to own it. Pricing runs from a $0 Free tier with limited agent access, web chat, and the GPT-6 Luna model, up to Starter, which unlocks higher usage limits, priority sandboxes, ad-free chat, codebase download, and a premium roster spanning Claude Fable 5.1, Opus 5.5, Sonnet 5.5, Haiku 5.5, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Astra, and Grok 4.7. Enterprise adds custom domains, team management, enterprise integrations, a shared team design system, and real-time collaboration. Usage is metered as a monthly allowance shown as a percentage inside the app. It suits full-stack developers, indie hackers, and agencies who want to go from prompt to deployed app without local setup. If you can't read generated backend code, look at v0 or Lovable instead — Fixa assumes you'll review what it ships.
Behind the Verdict
Here's the honest test for any autonomous coding agent: does it run what it wrote? Fixa's whole design answers yes — the agent gets a sandbox with a terminal, installs what it needs, executes the app, and iterates on real stack traces. In practice that removes the worst part of agent workflows, which is discovering on deploy that the imports were wrong. Pick it when you're starting from a prompt or a GitHub repo and want a deployed full-stack app with auth and payments wired in. The Stripe, Supabase, Clerk, and Vercel connectors cover the boring integration work most MVPs need, and one-click Vercel deploy closes the loop. Pass if you're not going to read the code. Fixa generates a real codebase with a backend; if you can't correct it, you're renting a house you can't inspect. Frontend-only work is a better fit for v0 or Lovable, and if you need on-prem infrastructure this isn't the shape of product you're after. The closest alternative depends on your comparison set: v0 for UI-first generation, Lovable for non-technical builders, Bolt and Replit Agent for browser-based full-stack. Fixa's differentiator is the agent's own machine plus codebase download on paid plans — you can leave with the repo. Where it bites: usage allowances are displayed as a percentage, which tells you how much you've spent without telling you what the next model call costs. Heavy iteration on premium models will burn allowance faster than a light CRUD build. Starter's price isn't shown on the page, so you can't model monthly spend from the outside. Start on Free with GPT-6 Luna, run a real project through it, then upgrade once you know your actual token appetite.
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Real-world workflow fit
Concrete scenarios for the personas Fixa.dev actually fits — and what changes day-one when you adopt it.
You prompt Fixa for a Stripe-billed SaaS, let it provision Supabase and Clerk through the one-click connectors, and watch it run the app and fix its own runtime errors in the sandbox.
Outcome: A running full-stack app deployed to Vercel from inside the workspace, with the codebase downloadable if you want to own it.
You import the existing GitHub project, point the agent at a failing API endpoint, and let it browse the vendor's live documentation rather than guess from a stale training cut.
Outcome: A patched endpoint plus a run log showing the fix actually executed, not just a suggested diff.
You spin up client work on Starter for priority sandboxes and the premium model roster, then connect internal tooling through MCP instead of writing integration boilerplate.
Outcome: Faster prototype turnaround, with the codebase downloaded for handoff or for the client's own repo.
Use Cases
- Build a full-stack SaaS app with Stripe payments and a Supabase database without standing up local infrastructure
- Autonomously debug and fix a broken API endpoint by having the agent browse its documentation
- Deploy a production-ready backend to Vercel with one click after code generation
- Connect custom data sources through MCP servers instead of writing integration boilerplate
- Import an existing GitHub repo and let the agent extend or repair it
- Rapidly prototype an AI-powered app using premium models like Opus 5.5 or GPT-6.1 Sol
Models Under the Hood
as of 2026-10-17
Limitations
- The Free tier includes only limited agent access and web chat with GPT-6 Luna, so heavier building requires a paid plan.
- Starter, Pro, Max, and Ultra are sub-tiers of the same paid plan, and the pricing page does not post a dollar figure for Starter — so you cannot compute your monthly cost before you sign up.
- Usage is displayed as a single percentage inside the app rather than as credits or dollars, which makes exact spend hard to forecast.
- Custom domains, team management, enterprise integrations, a shared team design system, and real-time collaboration are Enterprise-only and require contacting sales.
- The agent runs on the vendor's cloud sandbox rather than your own infrastructure.
as of 2026-10-11
Verification history
We have re-verified Fixa.dev 11 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
- — re-checked, vendor evidence unchanged
Showing the 6 most recent of 11 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Fixa.dev tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0/month
Ideal for
Individual developer who wants to try an autonomous agent before paying, and is fine with limited agent access and web chat only
What this tier adds
Starting tier — limited access to the agent, chat on web, GPT-6 Luna, community support, no card required
Starter
Price not shown on pricing page
Ideal for
Individual developer or indie hacker doing regular paid-tier building who needs premium models and a downloadable codebase
What this tier adds
Adds higher usage limits, ad-free interface, priority sandboxes, Claude Fable 5.1 / Opus 5.5 / Sonnet 5.5 / GPT-6.1 Sol, and codebase download; splits into Starter, Pro, Max and Ultra usage sub-tiers
Enterprise
Custom
Ideal for
Large teams and organizations that need custom domains, shared design systems, and real-time collaboration across developers
What this tier adds
Adds custom domains, team management, enterprise integrations, a shared team design system, and real-time collaboration tools on top of Pro
Where the pricing makes sense
The company stage and team size where Fixa.dev's pricing actually pencils out — and where peers do it cheaper.
Cheapest entry is genuinely free: GPT-6 Luna, web chat, limited agent access, no card to explore. Enterprise is custom-priced for organizations needing custom domains and team management.
Setup time & first value
How long it actually takes to get something useful out of Fixa.dev — broken out by persona, not the marketing-page minute.
Individual developer: minutes — start from a prompt or connect GitHub in the web workspace, no local install required. Agency team: same first-build speed on Starter, but the faster sandboxes only kick in after you've upgraded. Enterprise buyer: add significant time before first value, since custom domains, team management, and shared design system require a sales conversation.
Switching to or from Fixa.dev
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From v0 or Lovable: import your project and let Fixa take over the full-stack layer, since those tools are frontend-first
- →From Bolt or Replit Agent: recreate the project from a prompt or GitHub import, then rely on Fixa's execute-and-debug loop rather than one-shot generation
- →From a local dev setup: import the GitHub repo and let the agent install dependencies and run the app in its sandbox instead of your machine
- ↗To a local workflow: download the full generated codebase and continue in your own editor and CI
- ↗To v0 or Lovable: extract the frontend work, since those tools fit frontend-only and static builds better
Integrations
Resources & Guides
Tutorials & Learning
YouTube returned 6 videos for “Fixa.dev”, and we withheld 6: 6 did not mention Fixa.dev. We are showing none, because we could not prove any of them are about Fixa.dev.
Official links
Tools that pair well with Fixa.dev
Common stack mates teams adopt alongside Fixa.dev, with the specific reason each pairing earns its keep.
Bolt.new
Bolt.new is an AI app builder that turns a chat prompt into a deployed full-stack website on Bolt Cloud.
MarsX
Open-source dev platform that combines no-code, full-code, and AI with reusable full-stack MicroApps.
Lovable
Lovable is an AI app builder that turns plain-language prompts into deployed full-stack web apps with hosting, auth and payments.
Featured Head-to-Head Comparisons
Fixa Dev vs Locus Robotics
Choose Locus Robotics if you need to automate physical warehouse operations with flexible, scalable AMRs and a proven RaaS model. Choose Fixa.dev if you're a developer wanting an autonomous AI agent to build and deploy production apps rapidly. They serve entirely different domains, so pick based on whether you're moving boxes or code.
Fixa Dev vs Truleo
Truleo and Fixa.dev serve completely different markets. Truleo is a specialized law enforcement intelligence platform that automates data analysis across siloed police systems—ideal for detectives and command staff. Fixa.dev is a developer tool that autonomously writes and deploys production apps via a cloud environment. Choose based on your domain: law enforcement needs Truleo; app development needs Fixa.dev.
Fixa Dev vs Presto Voice
Presto Voice and Fixa.dev serve entirely different domains: Presto automates drive-thru ordering for QSR chains (latest news: Dairy Queen partnership), while Fixa.dev helps developers autonomously build production apps. For a restaurant chain, Presto is the clear choice; for a software builder, Fixa.dev wins. Do not cross-shop—decide based on your industry.
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