MOSTLY AI

MOSTLY AI provides a synthetic data platform for high-fidelity, privacy-safe tabular data. It ships an open-source Python SDK (mostlyai, Apache 2.0) that runs in LOCAL mode for on-prem training or CLIENT mode against the hosted MOSTLY AI Platform, plus a REST API used by both the SDK and the web app. The SDK is powered by the TabularARGN model architecture and supports differential privacy.

MOSTLY AI publishes 10 APIs on the APIs.io network, including About API, Computes API, Connectors API, and 7 more. Tagged areas include Synthetic Data, Privacy, Tabular, Differential Privacy, and Python SDK.

MOSTLY AI’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.8/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreeSelf serve⚡ Free to try

12 APIs

Synthetic Data PrivacyTabularDifferential Privacy Python SDK REST Apache 2.0

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 36.8/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.8 / 20

Access Clarity 5.8 / 20

Operational Transparency 5.5 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/mostly-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 12

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

Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rate Limits 1

Documented rate limits and quota policies.

Mostly Ai Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

APIDocs

APIDocs

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: mostly-ai
url: https://raw.githubusercontent.com/api-evangelist/mostly-ai/refs/heads/main/apis.yml
name: MOSTLY AI
kind: company
description: MOSTLY AI provides a synthetic data platform for high-fidelity, privacy-safe tabular data. It ships an open-source
  Python SDK (mostlyai, Apache 2.0) that runs in LOCAL mode for on-prem training or CLIENT mode against the hosted MOSTLY
  AI Platform, plus a REST API used by both the SDK and the web app. The SDK is powered by the TabularARGN model architecture
  and supports differential privacy.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/mostly-ai.png
tags:
- Synthetic Data
- Privacy
- Tabular
- Differential Privacy
- Python SDK
- REST
- Apache 2.0
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis:
- aid: mostly-ai:rest-api
  name: MOSTLY AI REST API
  description: REST API for the hosted MOSTLY AI Platform. Lets you manage connectors, generators, synthetic datasets, and
    runs. API keys are issued from the user profile menu in the web application.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - REST
  - Synthetic Data
  - Generators
  - Connectors
  properties:
  - type: Documentation
    url: https://api-docs.mostly.ai/
  - type: ProductDocs
    url: https://mostly.ai/docs
- aid: mostly-ai:python-sdk
  name: MOSTLY AI Synthetic Data SDK
  description: Open-source Python SDK (mostlyai, Apache 2.0) for training generators and producing synthetic data. Runs in
    LOCAL mode on user compute or CLIENT mode against the MOSTLY AI Platform. Powered by the TabularARGN model.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://mostly-ai.github.io/mostlyai/
  baseURL: https://github.com/mostly-ai/mostlyai
  tags:
  - SDK
  - Python
  - Open-Source
  - Apache 2.0
  tags_raw:
  - SDK
  - Python
  - Open Source
  - Apache 2.0
  properties:
  - type: Documentation
    url: https://docs.mostly.ai/python-sdk
  - type: APIReference
    url: https://mostly-ai.github.io/mostlyai/api_client/
  - type: SourceCode
    url: https://github.com/mostly-ai/mostlyai
  - type: PyPI
    url: https://pypi.org/project/mostlyai/
- aid: mostly-ai:mostly-ai-about-api
  name: MOSTLY AI About API
  description: The About API from MOSTLY AI — 1 operation(s) for about.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - About
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-about-api-openapi.yml
- aid: mostly-ai:mostly-ai-computes-api
  name: MOSTLY AI Computes API
  description: The Computes API from MOSTLY AI — 2 operation(s) for computes.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Computes
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-computes-api-openapi.yml
- aid: mostly-ai:mostly-ai-connectors-api
  name: MOSTLY AI Connectors API
  description: The Connectors API from MOSTLY AI — 7 operation(s) for connectors.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Connectors
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-connectors-api-openapi.yml
- aid: mostly-ai:mostly-ai-datasets-api
  name: MOSTLY AI Datasets API
  description: The Datasets API from MOSTLY AI — 2 operation(s) for datasets.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Datasets
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-datasets-api-openapi.yml
- aid: mostly-ai:mostly-ai-generators-api
  name: MOSTLY AI Generators API
  description: The Generators API from MOSTLY AI — 10 operation(s) for generators.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Generators
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-generators-api-openapi.yml
- aid: mostly-ai:mostly-ai-models-api
  name: MOSTLY AI Models API
  description: The Models API from MOSTLY AI — 1 operation(s) for models.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-models-api-openapi.yml
- aid: mostly-ai:mostly-ai-organizations-api
  name: MOSTLY AI Organizations API
  description: The Organizations API from MOSTLY AI — 3 operation(s) for organizations.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Organization
  tags_raw:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-organizations-api-openapi.yml
- aid: mostly-ai:mostly-ai-synthetic-datasets-api
  name: MOSTLY AI Synthetic Datasets API
  description: The Synthetic Datasets API from MOSTLY AI — 5 operation(s) for synthetic datasets.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Synthetic Datasets
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-synthetic-datasets-api-openapi.yml
- aid: mostly-ai:mostly-ai-synthetic-probes-api
  name: MOSTLY AI Synthetic Probes API
  description: The Synthetic Probes API from MOSTLY AI — 1 operation(s) for synthetic probes.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - Synthetic Probes
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-synthetic-probes-api-openapi.yml
- aid: mostly-ai:mostly-ai-users-api
  name: MOSTLY AI Users API
  description: The Users API from MOSTLY AI — 4 operation(s) for users.
  humanURL: https://api-docs.mostly.ai/
  baseURL: https://app.mostly.ai
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/mostly-ai-users-api-openapi.yml
common:
- type: IssueTracker
  url: https://github.com/mostly-ai/mostlyai/issues
- type: Releases
  url: https://github.com/mostly-ai/mostlyai/releases
- type: ContributionGuide
  url: https://github.com/mostly-ai/mostlyai/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/mostly-ai/mostlyai/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/mostly-ai-agentic-access.yml
- type: DomainSecurity
  url: security/mostly-ai-domain-security.yml
- type: Authentication
  url: authentication/mostly-ai-authentication.yml
- type: Website
  url: https://mostly.ai/
- type: Documentation
  url: https://mostly.ai/docs
- type: APIDocs
  url: https://api-docs.mostly.ai/
- type: GitHub
  url: https://github.com/mostly-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/mostly-ai
- type: Plans
  url: plans/mostly-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/mostly-ai-rate-limits.yml
- type: FinOps
  url: finops/mostly-ai-finops.yml
- url: https://mostly.ai/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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