Mirelo

Mirelo is a Berlin-based AI research lab building state-of-the-art audio foundation models for visual media. Its flagship Mirelo SFX model generates production-ready, perfectly synced sound effects directly from video (or from text prompts) with no background-music noise, plus iterative editing, audio inpainting, sound extension, and a multi-instrument Audio-to-MIDI model. Mirelo ships a self-serve REST API (https://api.mirelo.ai/v2/), the Mirelo Studio web app, official Node.js and Python SDKs, and editor plugins for Adobe Premiere Pro, DaVinci Resolve, Reaper, and Roblox Studio. The models are also distributed on fal.ai, Replicate, and Runware. Founded by musicians-turned-AI researchers from Amazon, Google Brain, Max Planck and ETH Zurich, Mirelo raised a $41M seed round co-led by Index Ventures and Andreessen Horowitz in December 2025.

Mirelo is listed with 1 API on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Audio, Sound Effects, and Generative AI.

Mirelo’s developer surface includes documentation, API reference, engineering blog, pricing, support, signup flow, authentication, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

35.5/100 thin ▬ flat Agent 5/100 human only Front door AI 5/6 prominent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 API

Company Artificial Intelligence Audio Sound Effects Generative AI Video Text to AudioAudio to MIDIMachine Learning

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 35.5/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 13.0 / 17

Operational Transparency 3.8 / 11

Contract Governance 0.0 / 10

Discoverability 6.1 / 9

Regulatory Posture 2.7 / 15

Agent readiness — 5/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Contract Governance scores 0.0 — up to +12.0 composite points
Developer Ergonomics scores 42.9 — up to +11.4 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/mirelo/apis.yml: open an issue on github.com/api-evangelist/mirelo to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Adobe Exchange (publishers of Creative Cloud, Experience Cloud and Document Cloud integrations)	standard	42.5	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Mirelo SFX API

Self-serve REST API to generate and edit sound effects from video or text. Bearer-token (API key) auth; JSON request/response returning generated audio asset URLs; synchronous a...

Mirelo API pricing

Prices published by Mirelo, read 2026-10-07 from mirelo.ai/pricing.

Plan	Price
Free	0 €/ month Includes: 5.000 credits included each month, 3 Projects, projects delete after 1 week, watermark on exports
Creator	20 €/ month Includes: 24.000 credits included each month, 20 projects
Studio	99 €/ month Includes: 120.000 credits included each month, Unlimited projects
Scale	299 €/ month Includes: 420.000 credits included each month, Unlimited projects
Business	999 €/ month Includes: 1.440.000 credits included each month, Unlimited projects
Enterprise	Custom Includes: Custom credits each month, Unlimited projects, API access and dedicated support

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Mirelo Plans Pricing

6 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Mirelo

SLA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Mirelo Authentication

http · 1 scheme

SECURITY

Mirelo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Lifecycle

Lifecycle

Components

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Source (apis.yml)

aid: mirelo
name: Mirelo
description: Mirelo is a Berlin-based AI research lab building state-of-the-art audio foundation models for visual media.
  Its flagship Mirelo SFX model generates production-ready, perfectly synced sound effects directly from video (or from text
  prompts) with no background-music noise, plus iterative editing, audio inpainting, sound extension, and a multi-instrument
  Audio-to-MIDI model. Mirelo ships a self-serve REST API (https://api.mirelo.ai/v2/), the Mirelo Studio web app, official
  Node.js and Python SDKs, and editor plugins for Adobe Premiere Pro, DaVinci Resolve, Reaper, and Roblox Studio. The models
  are also distributed on fal.ai, Replicate, and Runware. Founded by musicians-turned-AI researchers from Amazon, Google Brain,
  Max Planck and ETH Zurich, Mirelo raised a $41M seed round co-led by Index Ventures and Andreessen Horowitz in December
  2025.
url: https://raw.githubusercontent.com/api-evangelist/mirelo/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- index-ventures
- andreessen-horowitz
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://mirelo.ai/opengraph-image.png
tags:
- Company
- Artificial Intelligence
- Audio
- Sound Effects
- Generative AI
- Video
- Text to Audio
- Audio to MIDI
- Machine Learning
tags_raw:
- Company
- Ai Ml
- Audio
- Sound Effects
- Generative AI
- Video
- Text to Audio
- Audio to MIDI
- Machine Learning
- Machine-Learning
apis:
- name: Mirelo SFX API
  description: Self-serve REST API to generate and edit sound effects from video or text. Bearer-token (API key) auth; JSON
    request/response returning generated audio asset URLs; synchronous and asynchronous (job-polling) modes; a preflight endpoint
    returns credit cost and estimated processing time before billing. Model revisions are pinned in the request path (e.g.
    text-to-sfx/v1.6).
  humanURL: https://mirelo.ai/api-docs
  baseURL: https://api.mirelo.ai/v2
  tags:
  - Audio
  - Sound Effects
  - Generative AI
  - Video
  properties:
  - type: Documentation
    url: https://mirelo.ai/api-docs
  - type: APIReference
    url: https://mirelo.ai/api-docs
  - type: Authentication
    url: authentication/mirelo-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/mirelo-plans-pricing.yml
- type: Website
  url: https://mirelo.ai
- type: Documentation
  url: https://mirelo.ai/api-docs
- type: APIReference
  url: https://mirelo.ai/api-docs
- type: Blog
  url: https://mirelo.ai/blog
- type: BlogRSS
  url: https://mirelo.ai/feed.xml
- type: Pricing
  url: https://mirelo.ai/pricing
- type: Support
  url: https://mirelo.ai/support
- type: SignUp
  url: https://mirelo.ai/sfx
- type: TermsOfService
  url: https://mirelo.ai/terms
- type: PrivacyPolicy
  url: https://mirelo.ai/privacy
- type: GitHubOrganization
  url: https://github.com/mirelo-ai
- type: StatusPage
  url: https://status.mirelo.ai
- type: Authentication
  url: authentication/mirelo-authentication.yml
- type: Conventions
  url: conventions/mirelo-conventions.yml
- type: Lifecycle
  url: lifecycle/mirelo-lifecycle.yml
- type: ChangeLog
  url: changelog/mirelo-changelog.yml
- type: Packages
  url: packages/mirelo-packages.yml
- type: SDKs
  url: packages/mirelo-packages.yml
- type: X-MCPServerCandidate
  url: mcp/mirelo-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Components
  url: components/mirelo-components.yml
- type: DomainSecurity
  url: security/mirelo-domain-security.yml
- type: LLMsTxt
  url: llms/mirelo-llms.txt
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 10
  pass: local-v1

Mirelo API — frequently asked questions

Does Mirelo have an API?

Yes. APIs.io lists 1 API from Mirelo, including Mirelo SFX API.

How do I authenticate with the Mirelo API?

Mirelo uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Mirelo Authentication.

How much does the Mirelo API cost?

Mirelo publishes its prices; its Free plan is 0 €/ month as of 2026-10-07. APIs.io lists 6 pricing plans for Mirelo, with each plan's price, limits and inclusions under Pricing on this page.

Is the Mirelo API ready for AI agents?

Mirelo has a Kin Score of 35.5 out of 100 (thin) and an Agent Readiness score of 4.7 (human-only), scored by API Evangelist on 2026-11-06.

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