Motley

Motley is a Zurich-based company building a governed semantic layer for AI agents and business intelligence. Its open-core product, SLayer (motley-slayer), is a lightweight, agent-first semantic layer and query engine: teams model measures, dimensions, and filters once, and SLayer generates and executes correct SQL across Postgres, MySQL, Snowflake, BigQuery, ClickHouse, DuckDB and more — exposed over MCP, a REST API, a CLI, a Python client, Apache Arrow Flight SQL, and a Postgres facade for BI tools. Motley Cloud adds the managed production layer on top: hosting, OAuth-based access control, row-level security, versioning, and a governed reporting engine that turns agent queries into reports, charts, documents, and presentations. Founded by Egor Kraev (ex-Head of AI at Wise), Artemy Belousov, and Yann Ranchere; backed by Seedcamp.

Motley publishes 1 API on the APIs.io network. Tagged areas include Company, Semantic Layer, Business Intelligence, Analytics, and AI Agents.

Motley’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, support, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.6/100 thin ▬ flat Agent 15/100 agent aware open core · MIT Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs 1 MCP Servers

Company Semantic Layer Business Intelligence Analytics AI Agents MCP SQL Data Reporting

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 35.6/100 · thin

Contract Quality 0.0 / 23

Developer Ergonomics 15.4 / 18

Access Clarity 5.7 / 18

Operational Transparency 2.2 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Open Source Surface 5.0 / 10

Agent readiness — 15/100 · agent aware

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 5 / 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

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 90 points between them, because the conditional facet above carries the other 10. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 90% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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 github.com/api-evangelist/motley: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

Motley SLayer Semantic Layer

SLayer is Motley's open-core, agent-first semantic layer and query engine. Agents and applications describe measures, dimensions, and filters and SLayer compiles and runs the co...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Motley MCP Server

SLayer runs as a Model Context Protocol (MCP) server so AI agents (Claude, Cursor, etc.) can discover and query data conversationally. It exposes the same tools across two trans...

MCP SERVER

Security Posture 2

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

Motley Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Motley Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Motley Scopes

7 scopes · authorizationCode

7 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

WellKnown

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Conformance

Conformance

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

SourceCode

Packages

SDKs

CLI

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

IssueTracker

Releases

Support

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

License

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Source (apis.yml)

aid: motley
name: Motley
description: 'Motley is a Zurich-based company building a governed semantic layer for AI agents and business intelligence.
  Its open-core product, SLayer (motley-slayer), is a lightweight, agent-first semantic layer and query engine: teams model
  measures, dimensions, and filters once, and SLayer generates and executes correct SQL across Postgres, MySQL, Snowflake,
  BigQuery, ClickHouse, DuckDB and more — exposed over MCP, a REST API, a CLI, a Python client, Apache Arrow Flight SQL, and
  a Postgres facade for BI tools. Motley Cloud adds the managed production layer on top: hosting, OAuth-based access control,
  row-level security, versioning, and a governed reporting engine that turns agent queries into reports, charts, documents,
  and presentations. Founded by Egor Kraev (ex-Head of AI at Wise), Artemy Belousov, and Yann Ranchere; backed by Seedcamp.'
deliveryModel:
  model: open-core
  license: MIT
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://raw.githubusercontent.com/MotleyAI/slayer/main/docs/images/slayer-hero.png
url: https://raw.githubusercontent.com/api-evangelist/motley/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- seedcamp
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 17
  pass: local-v1
tags:
- Company
- Semantic Layer
- Business Intelligence
- Analytics
- AI Agents
- MCP
- SQL
- Data
- Reporting
apis:
- name: Motley SLayer Semantic Layer
  description: SLayer is Motley's open-core, agent-first semantic layer and query engine. Agents and applications describe
    measures, dimensions, and filters and SLayer compiles and runs the correct SQL across many databases, exposed over MCP,
    REST, CLI, a Python client, Apache Arrow Flight SQL, and a Postgres facade. Motley Cloud is the managed, governed, OAuth-secured
    hosted layer.
  humanURL: https://docs.motley.ai/slayer/
  baseURL: https://app.motley.ai/api/v1/
  tags:
  - Semantic Layer
  - Analytics
  - MCP
  - SQL
  properties:
  - type: Documentation
    url: https://docs.motley.ai/slayer/
  - type: GettingStarted
    url: https://docs.motley.ai/slayer/getting-started/
  - type: APIReference
    url: https://docs.motley.ai/slayer/getting-started/rest-api
  - type: SourceCode
    url: https://github.com/MotleyAI/slayer
  - type: MCPServer
    url: mcp/motley-mcp.yml
  - type: CLI
    url: cli/motley-cli.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IssueTracker
  url: https://github.com/MotleyAI/slayer/issues
- type: Releases
  url: https://github.com/MotleyAI/slayer/releases
- type: ContributionGuide
  url: https://github.com/MotleyAI/slayer/blob/main/CONTRIBUTING.md
- type: License
  name: MIT
  url: https://github.com/MotleyAI/slayer/blob/main/LICENSE
- type: Website
  url: https://motley.ai
- type: DeveloperPortal
  url: https://docs.motley.ai/
- type: Documentation
  url: https://docs.motley.ai/
- type: APIReference
  url: https://docs.motley.ai/slayer/reference/
- type: GettingStarted
  url: https://docs.motley.ai/slayer/getting-started/
- type: Blog
  url: https://motley.ai/blog
- type: Pricing
  url: https://motley.ai/pricing
- type: SignUp
  url: https://app.motley.ai
- type: TermsOfService
  url: https://motley.ai/legal/terms-of-service
- type: PrivacyPolicy
  url: https://motley.ai/legal/privacy-policy
- type: GitHubOrganization
  url: https://github.com/MotleyAI
- type: Support
  url: https://discord.gg/egWxMctHCA
- type: LinkedIn
  url: https://www.linkedin.com/company/usemotley/
- type: SourceCode
  url: https://github.com/MotleyAI/slayer
- type: Packages
  url: packages/motley-packages.yml
- type: SDKs
  url: packages/motley-packages.yml
- type: MCPServer
  url: mcp/motley-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: CLI
  url: cli/motley-cli.yml
- type: ChangeLog
  url: changelog/motley-changelog.yml
- type: Authentication
  url: authentication/motley-authentication.yml
- type: OAuthScopes
  url: scopes/motley-scopes.yml
- type: WellKnown
  url: well-known/motley-well-known.yml
- type: Conventions
  url: conventions/motley-conventions.yml
- type: Conformance
  url: conformance/motley-conformance.yml
- type: Sandbox
  url: sandbox/motley-sandbox.yml
- type: LLMsTxt
  url: llms/motley-llms.txt
- type: DomainSecurity
  url: security/motley-domain-security.yml

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/motley"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/motley/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/motley/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.