MIDI Agent
MIDI Agent is a VST3, AU, AAX and standalone plugin that turns written prompts into editable MIDI inside your DAW, using ChatGPT, Claude, Gemini, your own API keys or local models. One licence, no compulsory subscription.
What is MIDI Agent?
MIDI Agent is an AI MIDI generator that lives inside your digital audio workstation. It installs as a VST3, AU or AAX plugin and also ships as a standalone application for Windows and macOS, so it can be used with or without a host. Its defining choice is what it produces: not a finished audio file, but editable MIDI, meaning notes, timing, velocities and expression you can reshape in a piano roll and route to any instrument in your session.
Three capabilities sit at the core. You can generate melodies, chord progressions, basslines and drum parts from a written prompt. You can drop in MIDI or audio you already have and ask for extensions and variations of it. And you can convert audio recordings into MIDI transcriptions, which the documentation recommends doing with clean, well-separated material shorter than thirty seconds.
What makes the product unusual is that the licence includes no model. Four access routes are offered instead: a paid ChatGPT plan, supported directly from version 1.2.5 onwards; your own API keys for OpenAI, Anthropic, Google Gemini, xAI, DeepSeek or OpenRouter; local models served through Ollama or LM Studio; or a MIDI Agent Pro subscription that manages access for you and adds premium providers such as Google Lyria, ElevenLabs and PozaLabs, with 500 generations a month. The local route is the only one that works entirely offline.
Before generating, you set key, scale, length in bars, note length, notation type and genre, and you can store custom instructions and reference MIDI examples to steer results toward your own style. Compatibility is claimed with ten named DAWs: Ableton Live, FL Studio, Logic Pro, Pro Tools, Cubase, Studio One, Reaper, Bitwig Studio, GarageBand and Reason.
The commercial model is a single payment of 49 USD with lifetime updates. Two caveats deserve attention: the terms of service still describe the software as being in beta development, and the models are not trained on copyrighted music, so prompts naming a specific artist are unlikely to work.
What it does
- Generate melodies, chord progressions, basslines and drum patterns from a written prompt
- Extend and vary MIDI files you already have
- Transcribe audio recordings into MIDI
- Set key, scale, bar length, note length, notation type and genre before generating
- Switch between AI providers and models without leaving the plugin
- Drag the generated .mid file straight into your DAW timeline
- Run generation entirely offline through a local model
When to use MIDI Agent / When not to
A quick filter to help you decide if MIDI Agent is the right fit.
When to use MIDI Agent
- DAW-based producers who want AI ideas as editable notes rather than finished audio
- Composers sketching cues for film, television and game projects
- Beatmakers looking for a fast way out of an empty session
- Songwriters who need chord progressions and melodies on demand
- Producers already paying for ChatGPT who want to put that subscription to work
When not to use MIDI Agent
- Anyone expecting a finished track with vocals: the output is MIDI, never audio
- Users who want to test before paying, since there is no free trial and no free plan
- Producers unwilling to carry an AI cost on top of the licence price
- Linux users, as only Windows 10 or later and macOS are supported
- Anyone hoping to recreate a named artist's sound, which the models refuse or handle poorly
How to use MIDI Agent
A typical end-to-end flow, from setup to results.
- Buy the 49 USD licence and download the installer from your account page
- Run the installer and pick the formats you need: standalone, VST3, AU or AAX
- Open the standalone app, or load MIDI Agent on a MIDI or instrument track in your DAW
- Paste your licence key into the settings panel and click Save to verify it online
- Choose an AI access route: a paid ChatGPT plan, a provider API key, a local model or Pro
- Select the provider and the specific model you want to work with
- Set key, scale, length in bars, note length, notation type and genre
- Write a precise musical prompt and send it
- Drag the generated .mid into your DAW, or use Save MIDI if drag and drop is refused
- Start a fresh conversation regularly, as long histories degrade the results
Pros & Cons
Pros
- Output is editable MIDI, so every note, velocity and timing stays under your control
- A single payment of 49 USD with lifetime updates and no compulsory subscription
- Four ways to reach a model, including reusing a ChatGPT plan you already pay for
- Local model support makes fully offline, private generation possible
- Ten named DAWs supported, plus a standalone app for people working without one
- You keep every right to what you generate, commercial use included
- The vendor states it never trains models on user interactions or files
Cons
- No free trial and no free plan, so you have to buy before you can test
- The licence includes no AI access, which means a second cost in almost every case
- The terms declare the software to be in beta, with bugs and changes without notice
- Refunds cover verified defects reported within 14 days only, never a change of mind
- No company address, no legal entity and no named director appear anywhere on the site
- The privacy policy never mentions the GDPR, a DPA or an EU representative
- Windows and macOS only, with macOS Sequoia expected and no Linux build
Pricing & Plans
There is no free plan and no free trial. The entry point is a one-time licence priced at 49 USD, which unlocks the VST3, AU, AAX and standalone formats and includes lifetime updates. An optional MIDI Agent Pro subscription costs 20 USD per month and requires the plugin licence to have been purchased first. Outside Pro, access to an AI model is billed separately by the provider you choose, or costs nothing if you run a local model.
- VST3
- AU
- AAX and standalone access
- your choice of AI access route
- lifetime updates
- specialised MIDI Agent models
- managed AI access with no API keys
- premium providers (Google Lyria
- ElevenLabs audio and sound effects
- PozaLabs)
- 500 AI generations per month
- priority support and updates
- requires a plugin licence first
Data, GDPR & hosting
A consolidated view of how MIDI Agent handles your data.
GDPR overview
There is no mention of the GDPR anywhere on the site: neither the privacy policy nor the terms nor any legal page uses the words GDPR, data protection officer or Article 27 representative. The policy does list rights of access, correction, deletion and opting out of marketing, but attaches them to no legal basis and offers only the contact form to exercise them. One regional mechanism exists: visitors confidently identified as being in the EEA, the United Kingdom or Switzerland are asked whether Google may use their customer data for advertising measurement, and until they agree Google receives click identifiers without hashed customer data. That versioned choice is stored in a first-party cookie and can be changed through Privacy choices in the footer. No DPA, no subprocessor register and no effective date are published.
Who owns the data?
The terms state that you keep all rights to the MIDI, audio and other content you submit, while granting MIDI Agent the rights it needs to process that content and deliver the service. MIDI produced by the plugin is described as your property, free for personal and commercial use, with no royalties and no attribution. On its own side the company collects your email address, username, password, licence key, prompts, musical parameters and any audio you upload. Provider API keys are not stored on its servers but pass through the service, and full card details stay with Stripe rather than with MIDI Agent.
Reuse rights
You may reuse everything the plugin generates without asking permission: generated MIDI is presented as your property, usable personally and commercially, with no royalties and no attribution. The vendor's own reuse is narrower but real. Prompts, musical parameters and API keys are forwarded to whichever AI provider you select, among OpenAI, Anthropic, DeepSeek, Google Gemini and OpenRouter. Account and transaction data reach Stripe for payment, Resend for email and Cloudflare Turnstile for the contact form, while Meta, Google Ads and OpenAI Ads receive advertising measurement events including hashed customer identifiers. The company states that user interactions, input files and output files are never used to train AI models.
Data retention & training
Hosting summary
The privacy policy names Vercel and Railway as the platforms hosting the website and backend services, and notes that these providers may access server logs and data as needed to provide hosting. No hosting country and no region are stated anywhere, and the terms contain no governing law or jurisdiction clause. The site itself sits behind Cloudflare: the domain resolves to 104.26.3.147, an anycast address, so the resolved location says nothing about where data actually rests. Payments run through Stripe, transactional email through Resend and the contact form CAPTCHA through Cloudflare Turnstile. Prompts, musical parameters and any audio you upload leave for whichever AI provider you have configured, among OpenAI, Anthropic, DeepSeek, Google Gemini and OpenRouter, and are then governed by that provider's own policies. If hosting jurisdiction matters to you, running a local model through Ollama or LM Studio is the only configuration that keeps generation on your own machine.
Things to keep in mind
Risks and trade-offs to weigh before adopting MIDI Agent.
- Leaning on generated ideas can quietly erode the habit of writing melody and harmony yourself
- Prompts, musical parameters and API keys travel through the service to whichever AI provider you select
- Advertising trackers from Meta, Google Ads and OpenAI Ads receive hashed customer identifiers such as email address and name
- No legal entity or postal address is published, which limits your options if a dispute arises
- The plugin only works while your chosen AI access does: a provider price change or shutdown breaks the workflow
- The software is declared to be in beta, so features can change, break or disappear without notice
- Prompting for a named artist's sound edges toward imitation and is refused or unproductive by design
Setup & Integrations
Technical difficulty
Moderate. The installer handles the formats, then you paste a licence key into the settings panel and click Save to verify it online. The extra step is AI access: unless you subscribe to Pro, you must connect a paid ChatGPT plan, obtain a provider API key or run a local model. No programming is required, but managing an API key is. The documentation flags the usual traps: install either AU or VST3 on macOS rather than both, let Pro Tools finish its plugin scan, and expect older macOS versions to miss the plugin entirely.
Deployment
Integrations
Behind MIDI Agent
Social
Resources
All the official URLs gathered for verification and reference.
Alternatives
Tools that compete with or complement MIDI Agent.
Frequently asked questions
Do I own the MIDI that MIDI Agent generates?
Is the monthly subscription compulsory?
Is there a free trial?
Does MIDI Agent work offline?
Which DAWs are supported?
Do I need a DAW at all?
Is my data used to train AI models?
Can I get a refund?
What are the system requirements?
Should you pick MIDI Agent?
MIDI Agent occupies a deliberately narrow position in a crowded market: where Suno, Udio and their peers hand back a finished audio file, it hands back notes. For a producer who already works in a DAW, that difference is the whole point, because a chord progression that can be revoiced, re-timed and routed to another instrument is worth more than a track that cannot be touched. The compatibility list is broad, the standalone app removes the DAW requirement altogether, and the ability to run everything through a local model is a genuine privacy argument that few competitors match.
The economics need care. The 49 USD licence with lifetime updates is honest value, but it buys the plugin and nothing else: generation always needs an AI access route on top, whether that is a ChatGPT subscription you already hold, metered API credits or 20 USD a month for Pro. Anyone budgeting for this tool should count both lines, and should note that with no free trial and no free plan the first test is a paid one, refundable only for a verified defect reported within fourteen days.
Two things deserve open eyes. The terms of service still describe the software as being in beta development while it is sold as a finished product, and the company behind it is invisible: no legal entity, no postal address, no named director, and a privacy policy that never once mentions the GDPR despite extensive advertising tracking through Meta, Google and OpenAI. The domain was registered in February 2025, so this is a young product. For a 50-dollar creative tool the exposure is modest; for anyone with institutional compliance requirements, the gaps are the deciding factor.
- Choosing a selection results in a full page refresh.
- Opens in a new window.