Kleio

Kleio is a Paris-headquartered agentic commerce platform for complex, high-value enterprise sales, founded in 2024 by Adrien Mathieu, Philippe Wellens and Louis Poirier and backed by a EUR 3M seed round. The platform pairs a domain-specific Knowledge Engine — a continuously updated representation of a company's catalog, pricing, business rules and ontologies — with a stack of orchestrated AI agents tuned for each stage of the sales funnel: discovery agents for intent qualification, product-guidance agents that reason over the catalog, quoting agents wired to configurators and pricing, and a Live Sales Copilot that augments human advisors in real time. Kleio deploys across web widgets, advisor desktops and third-party AI surfaces such as ChatGPT and Gemini via MCP/UCP integrations, with CRM and catalog write-back to Salesforce, HubSpot and custom systems. Named customers include Selectour, Havas Voyages, Showroomprive, Altarea Cogedim, Orpi and Emil Frey, across travel, real estate, automotive, wholesale, insurance, manufacturing and energy. Kleio publishes no public developer portal, API reference or OpenAPI: the platform API at api.kleio.ai is an OAuth-protected Google Cloud API Gateway reachable only to customers, and access begins with a sales conversation.

Kleio is listed with 1 API on the APIs.io network. Tagged areas include Company, Ai Data, Agentic Commerce, AI Agents, and Enterprise Sales.

Kleio’s developer surface includes engineering blog, support, authentication, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.7/100 emerging ▬ flat Agent 18/100 agent aware Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessApproval

1 API

Company Ai Data Agentic Commerce AI Agents Enterprise Sales Conversational AIKnowledge EngineMCP Retail Travel Real Estate Automotive France

Kin Score

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

Composite quality — 21.7/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 3.6 / 17

Operational Transparency 1.5 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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

9 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
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Access Clarity scores 21.1 — up to +15.8 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/kleio/apis.yml: open an issue on github.com/api-evangelist/kleio 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 →

Standards implemented 2

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)

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

Kleio Platform API

The Kleio platform API, served from api.kleio.ai behind a Google Cloud API Gateway and protected by OAuth 2.0 authorization-code + PKCE against an Auth0 tenant at auth.kleio.ai....

Kleio API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Kleio Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kleio Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Kleio Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Kleio Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Kleio Scopes

14 scopes · authorizationCode

14 scopes

SCOPES

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Lifecycle

Lifecycle

Conventions

Conventions

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 4

Authentication, authorization, and security posture

Security

Authentication

OAuthScopes

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Plans

Plans

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: kleio
name: Kleio
description: 'Kleio is a Paris-headquartered agentic commerce platform for complex, high-value enterprise sales, founded in
  2024 by Adrien Mathieu, Philippe Wellens and Louis Poirier and backed by a EUR 3M seed round. The platform pairs a domain-specific
  Knowledge Engine — a continuously updated representation of a company''s catalog, pricing, business rules and ontologies
  — with a stack of orchestrated AI agents tuned for each stage of the sales funnel: discovery agents for intent qualification,
  product-guidance agents that reason over the catalog, quoting agents wired to configurators and pricing, and a Live Sales
  Copilot that augments human advisors in real time. Kleio deploys across web widgets, advisor desktops and third-party AI
  surfaces such as ChatGPT and Gemini via MCP/UCP integrations, with CRM and catalog write-back to Salesforce, HubSpot and
  custom systems. Named customers include Selectour, Havas Voyages, Showroomprive, Altarea Cogedim, Orpi and Emil Frey, across
  travel, real estate, automotive, wholesale, insurance, manufacturing and energy. Kleio publishes no public developer portal,
  API reference or OpenAPI: the platform API at api.kleio.ai is an OAuth-protected Google Cloud API Gateway reachable only
  to customers, and access begins with a sales conversation.'
url: https://raw.githubusercontent.com/api-evangelist/kleio/refs/heads/main/apis.yml
x-api-posture: no-product-api
x-api-posture-basis: observed
x-type: company
x-source: serena-portfolio
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: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  gated_conflict: 'x-api-posture: private but 1 published API entry'
  label: Requires approval
  confidence: medium
  probe_state: gated
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/67b32cd10cd0c67b686078c2/67c06a31d5ccb4402746c01b_logo-circle-32x32.png
specificationVersion: '0.23'
created: '2026-08-17'
modified: '2026-08-17'
tags:
- Company
- Ai Data
- Agentic Commerce
- AI Agents
- Enterprise Sales
- Conversational AI
- Knowledge Engine
- MCP
- Retail
- Travel
- Real Estate
- Automotive
- France
tags_raw:
- Company
- Ai Data
- Agentic Commerce
- AI Agents
- Enterprise Sales
- Conversational AI
- Knowledge Engine
- Model Context Protocol
- Retail
- Travel
- Real Estate
- Automotive
- France
- Real-Estate
apis:
- aid: kleio:kleio-platform
  name: Kleio Platform API
  description: The Kleio platform API, served from api.kleio.ai behind a Google Cloud API Gateway and protected by OAuth 2.0
    authorization-code + PKCE against an Auth0 tenant at auth.kleio.ai. Kleio publishes no public API reference or OpenAPI
    definition; the surface was established by probe — the gateway advertises RFC 8414 authorization-server metadata at https://api.kleio.ai/.well-known/oauth-authorization-server
    (HTTP 200) which names a dynamic client registration endpoint at https://api.kleio.ai/api/oauth/register (HTTP 405 to
    GET, confirming the route is defined). Every other probed path returns the gateway's "The current request is not defined
    by this API" 404. Operations, schemas and scopes are not publicly documented.
  humanURL: https://www.kleio.ai/products
  baseURL: https://api.kleio.ai
  tags:
  - Agentic Commerce
  - AI Agents
  - OAuth
  - Authentication
  tags_raw:
  - Agentic Commerce
  - AI Agents
  - OAuth
  - Authentication
  properties:
  - type: Authentication
    url: authentication/kleio-authentication.yml
  - type: OAuthScopes
    url: scopes/kleio-scopes.yml
  - type: Conventions
    url: conventions/kleio-conventions.yml
  - type: RateLimits
    url: rate-limits/kleio-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.kleio.ai/
- type: Blog
  url: https://www.kleio.ai/news
- type: Support
  url: https://www.kleio.ai/contact
- type: PrivacyPolicy
  url: https://www.kleio.ai/privacy-policy
- type: TermsOfService
  url: https://www.kleio.ai/acceptable-use-policy
- type: Security
  url: https://www.kleio.ai/security-policy
- type: GitHubOrganization
  url: https://github.com/kleioai
- type: LinkedIn
  url: https://www.linkedin.com/company/kleio-ai
- type: Twitter
  url: https://x.com/kleio_ai
- type: LLMsTxt
  url: llms/kleio-llms.txt
- type: WellKnown
  url: well-known/kleio-well-known.yml
- type: Authentication
  url: authentication/kleio-authentication.yml
- type: OAuthScopes
  url: scopes/kleio-scopes.yml
- type: Conformance
  url: conformance/kleio-conformance.yml
- type: DomainSecurity
  url: security/kleio-domain-security.yml
- type: Lifecycle
  url: lifecycle/kleio-lifecycle.yml
- type: Conventions
  url: conventions/kleio-conventions.yml
- type: Plans
  url: plans/kleio-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kleio-rate-limits.yml
- type: Packages
  url: packages/kleio-packages.yml
x-enrichment:
  date: '2026-08-17'
  status: minimal
  artifacts_added: 13
  pass: local-v1
x-coverage:
  state: gated
  reason: sales-gate
  detail: Kleio runs a real OAuth-protected platform API at api.kleio.ai — its Google Cloud API Gateway serves RFC 8414 authorization-server
    metadata naming an Auth0 issuer and a defined dynamic client registration route — but publishes no developer portal, API
    reference, OpenAPI or auth guide anywhere, and kleio.ai/pricing and kleio.ai/docs both 404, so the only route to the API
    is the "Request a Demo" form at kleio.ai/contact.
  evidence:
  - url: https://api.kleio.ai/.well-known/oauth-authorization-server
    status: 200
  - url: https://api.kleio.ai/api/oauth/register
    status: 405
  - url: https://api.kleio.ai/openapi.json
    status: 404
  - url: https://www.kleio.ai/docs
    status: 404
  - url: https://www.kleio.ai/pricing
    status: 404
  - url: https://www.kleio.ai/contact
    status: 200
  checked: '2026-08-17'
x-pointer-omissions:
  note: Pointers deliberately NOT emitted, recorded so a later pass does not re-litigate them. Each was considered and rejected
    because the check asserts something Kleio does not publish.
  omitted:
  - type: MCPServer
    reason: 'Kleio markets MCP/UCP integration in its own llms.txt and product page but publishes no endpoint; tools/list
      POSTs to every plausible path return the gateway 404. See mcp/kleio-mcp.yml (deployment.mode: none). The search-engine
      result app.getkleio.com/api/mcp belongs to a different company that shares the name.'
  - type: AgentCard
    reason: /.well-known/agent-card.json and /.well-known/agent.json return 404 on every Kleio host. Search-only artifact;
      nothing written.
  - type: StatusPage
    reason: status.kleio.ai has a real DNS record but returns a Cloudflare bot challenge (403) and could not be read. kleio.statuspage.io
      is a soft-404 redirecting to Atlassian marketing.
  - type: Deprecation
    reason: No deprecation or versioning policy published.
  - type: SDKs
    reason: Zero first-party client libraries in any registry; the GitHub org has no public repos.
  - type: Compliance
    reason: The certifications in kleio.ai/security-policy (SOC 2, ISO 27001/27017/27018) are held by sub-processors — GCP,
      Redis Cloud, CockroachDB — not by Kleio.
  - type: Pricing
    reason: No pricing page exists; kleio.ai/pricing 404s and the sitemap has no pricing URL.
  - type: DeveloperPortal
    reason: Kleio has no developer portal. kleio.ai/products and /agentic-discovery-engine are marketing pages; pointing a
      portal check at them would credit 4 pts for a surface that does not exist.
  - type: Documentation
    reason: No API documentation of any kind. kleio.ai/docs and /developers both 404 and no docs subdomain resolves.
  - type: APIReference
    reason: No API reference published.
  - type: GettingStarted
    reason: No quickstart or getting-started guide published.
  - type: SignUp
    reason: No self-service registration. kleio.ai/login 404s; kleio.ai/contact is a "Request a Demo" form, which is a sales
      gate rather than a sign-up.
  - type: Postman
    reason: No public Postman collection or workspace found.
  - type: Roadmap
    reason: No public roadmap.
  - type: ChangeLog
    reason: No changelog or release notes. kleio.ai/changelog 404s and the sitemap lists none.
  - type: AsyncAPI/Webhooks
    reason: No event, streaming or webhook surface is documented publicly.
  - type: AgentSkill
    reason: No OpenAPI exists to ground skills in, and skills must be grounded in real operationIds.
  - type: Idempotency
    reason: No idempotency contract is documented or observable.
  - type: OpenAPI
    reason: No specification found after probing every spec path on www.kleio.ai, api.kleio.ai, the Cloud Run backend, and
      the non-resolving docs/developer/app subdomains.
x-tags-removed:
- A2A

Kleio API — frequently asked questions

Does Kleio have an API?

Yes. APIs.io lists 1 API from Kleio, including Kleio Platform API.

How do I authenticate with the Kleio API?

Kleio documents its authentication (oauth2/openIdConnect · 2 schemes). The details are profiled on APIs.io as Kleio Authentication.

Is the Kleio API ready for AI agents?

Kleio has a Kin Score of 21.7 out of 100 (emerging) and an Agent Readiness score of 17.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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