Kardinal

Kardinal is a Paris-based logistics optimization company whose Always-on Route Optimization (ARO) API solves vehicle routing problems for last-mile delivery, post and parcel, waste and bulk transport, fresh delivery, field services and retail operators. Integrators submit a plan — resources (vehicles), orders (stops) and constraints such as capacities, time windows, driver skills and breaks — with a single idempotent PUT, and the engine optimizes it continuously rather than in a nightly batch, so new orders, cancellations, traffic and field updates are absorbed into the running solution instead of forcing a rerun. The REST API is documented with a published OpenAPI 3.0.3 definition covering 40 operations across authentication, plans, resources, orders and solutions, and is reachable per customer environment at https://.kardinal.ai/api/v2 using short-lived JWT bearer tokens.

Kardinal publishes 3 API contracts indexed on the APIs.io network: Plan API, Solution API, and Webhook API. Tagged areas include Company, Software-as-a-Service, Route Optimization, Vehicle Routing, and Last Mile Delivery.

The Kardinal catalog on APIs.io includes 1 Spectral governance ruleset.

Kardinal’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, FAQ, and 27 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.8/100 developing ▬ flat Agent 37/100 agent ready Front door AI 4/6 moderate 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 published contract 1 MCP Servers 4 Agent Skills

Company Software-as-a-Service Route OptimizationVehicle RoutingLast Mile Delivery Logistics Supply Chain Transportation Fleet Management Optimization A2A

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Transport Operations Management

BC-2420

CorePlanSimplePlanSolution

GET /plans/{planId}/solution

Cybersecurity Management

BC-620

Authenticate

Kin Score

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

Composite quality — 50.8/100 · developing

Contract Quality 10.3 / 19

Developer Ergonomics 10.7 / 15

Access Clarity 9.1 / 15

Operational Transparency 0.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 37/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 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

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs

5 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 2.6 — up to +12.7 composite points
Contract Quality scores 54.8 — up to +11.3 composite points
Contract Governance scores 18.2 — up to +9.8 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/kardinal/apis.yml: open an issue on github.com/api-evangelist/kardinal 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 4

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.

Agent2Agent

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

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Agent Skills

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Kardinal Plan API

How to create, retrieve, update and delete plans.

Kardinal Solution API

The Solution API from Kardinal — 2 operation(s) for solution.

Kardinal Webhook API

How to register, retrieve, update, and delete plan webhooks, and inspect their delivery results.

MCP Servers 1

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

Kardinal MCP Server

Remote MCP server at developers.kardinal.ai over HTTP; 3 tools listed.

MCP SERVER

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Authenticate against the Kardinal ARO API and keep the token alive

AGENT SKILL

Create a Kardinal plan and retrieve its optimized solution

AGENT SKILL

Re-optimize a running Kardinal plan after a field disruption

AGENT SKILL

Kardinal

AGENT SKILL

Kardinal API pricing

Prices published by Kardinal, read 2026-10-28 from kardinal.ai/.

Plan	Price
Free tier	1,000 free addresses Includes: 1,000 free stops, Python and JS/TS SDKs, full sandbox, complete docs
Prepaid packs	from €0.012/ address Includes: prepaid packs, the price drops with volume; addresses don't expire

Plan details, limits and sources →

Billed by: addresses · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Kardinal Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kardinal Rate Limits

0 limits

RATE LIMITS

Service Levels 1

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

Kardinal

SLA

FinOps 1

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

Kardinal Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Kardinal API Rules

55 rules · 50 errors 4 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Kardinal Aro Overlay

11 actions · update · kardinal-aro-openapi-original.yml

DERIVED

Security Posture 2

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

Kardinal Authentication

http · 5 schemes

SECURITY

Kardinal Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Kardinal Agentic Access

40 operations · 26 acting · 4 human-in-the-loop

40 operations · 26 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

AgenticAccess

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

ToolCrosswalk

ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

Support

FAQ

Contact

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

LegalNotice

Plans

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

AgentCard

AgentCard

Overlay

Overlay

Source (apis.yml)

aid: kardinal
name: Kardinal
description: Kardinal is a Paris-based logistics optimization company whose Always-on Route Optimization (ARO) API solves
  vehicle routing problems for last-mile delivery, post and parcel, waste and bulk transport, fresh delivery, field services
  and retail operators. Integrators submit a plan — resources (vehicles), orders (stops) and constraints such as capacities,
  time windows, driver skills and breaks — with a single idempotent PUT, and the engine optimizes it continuously rather than
  in a nightly batch, so new orders, cancellations, traffic and field updates are absorbed into the running solution instead
  of forcing a rerun. The REST API is documented with a published OpenAPI 3.0.3 definition covering 40 operations across authentication,
  plans, resources, orders and solutions, and is reachable per customer environment at https://<env>.kardinal.ai/api/v2 using
  short-lived JWT bearer tokens.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - 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: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kardinal.ai/wp-content/uploads/2020/01/cropped-Icon-blue-270x270.png
url: https://raw.githubusercontent.com/api-evangelist/kardinal/refs/heads/main/apis.yml
x-type: company
x-source: serena-portfolio
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
x-enrichment:
  date: '2026-08-17'
  status: enriched
  artifacts_added: 27
  pass: local-v1
specificationVersion: '0.23'
created: '2026-08-17'
modified: '2026-08-17'
tags:
- Company
- Software-as-a-Service
- Route Optimization
- Vehicle Routing
- Last Mile Delivery
- Logistics
- Supply Chain
- Transportation
- Fleet Management
- Optimization
- A2A
tags_raw:
- Company
- SaaS
- Route Optimization
- Vehicle Routing
- Last Mile Delivery
- Logistics
- Supply Chain
- Transportation
- Fleet Management
- Optimization
- A2A
apis:
- aid: kardinal:kardinal-plan-api
  name: Kardinal Plan API
  description: How to create, retrieve, update and delete plans.
  humanURL: https://developers.kardinal.ai/
  baseURL: https://app.kardinal.ai/api/v2
  tags:
  - Plan
  properties:
  - type: OpenAPI
    url: openapi/kardinal-plan-api-openapi.yml
  - type: Documentation
    url: https://developers.kardinal.ai/
  - type: APIReference
    url: https://developers.kardinal.ai/api-reference/authenticate/request-a-password-token
  - type: GettingStarted
    url: https://developers.kardinal.ai/getting-started/first-api-call
  - type: Authentication
    url: authentication/kardinal-authentication.yml
  - type: ErrorCatalog
    url: errors/kardinal-error-codes.yml
  - type: DataModel
    url: data-model/kardinal-data-model.yml
  - type: ToolCrosswalk
    url: mcp/kardinal-tool-crosswalk.yml
- aid: kardinal:kardinal-solution-api
  name: Kardinal Solution API
  description: The Solution API from Kardinal — 2 operation(s) for solution.
  humanURL: https://developers.kardinal.ai/
  baseURL: https://app.kardinal.ai/api/v2
  tags:
  - Solution
  properties:
  - type: OpenAPI
    url: openapi/kardinal-solution-api-openapi.yml
  - type: Documentation
    url: https://developers.kardinal.ai/
  - type: APIReference
    url: https://developers.kardinal.ai/api-reference/authenticate/request-a-password-token
  - type: GettingStarted
    url: https://developers.kardinal.ai/getting-started/first-api-call
  - type: Authentication
    url: authentication/kardinal-authentication.yml
  - type: ErrorCatalog
    url: errors/kardinal-error-codes.yml
  - type: DataModel
    url: data-model/kardinal-data-model.yml
  - type: ToolCrosswalk
    url: mcp/kardinal-tool-crosswalk.yml
- aid: kardinal:kardinal-webhook-api
  name: Kardinal Webhook API
  description: How to register, retrieve, update, and delete plan webhooks, and inspect their delivery results.
  humanURL: https://developers.kardinal.ai/
  baseURL: https://app.kardinal.ai/api/v2
  tags:
  - Webhook
  properties:
  - type: OpenAPI
    url: openapi/kardinal-webhook-api-openapi.yml
  - type: Documentation
    url: https://developers.kardinal.ai/
  - type: APIReference
    url: https://developers.kardinal.ai/api-reference/authenticate/request-a-password-token
  - type: GettingStarted
    url: https://developers.kardinal.ai/getting-started/first-api-call
  - type: Authentication
    url: authentication/kardinal-authentication.yml
  - type: ErrorCatalog
    url: errors/kardinal-error-codes.yml
  - type: DataModel
    url: data-model/kardinal-data-model.yml
  - type: ToolCrosswalk
    url: mcp/kardinal-tool-crosswalk.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/kardinal-rate-limits.yml
- type: CapabilityMap
  url: capabilities/kardinal-capability-edges.yml
  name: Kardinal Business Capability Map
- type: Website
  url: https://kardinal.ai/
- type: DeveloperPortal
  url: https://developers.kardinal.ai/
- type: Documentation
  url: https://developers.kardinal.ai/
- type: APIReference
  url: https://developers.kardinal.ai/api-reference/authenticate/request-a-password-token
- type: GettingStarted
  url: https://developers.kardinal.ai/getting-started/first-api-call
- type: Support
  url: https://kardinal.ai/contact/
- type: Blog
  url: https://kardinal.ai/blog/
- type: BlogRSS
  url: https://kardinal.ai/feed/
- type: GitHubOrganization
  url: https://github.com/KardinalAI
- type: Pricing
  url: https://kardinal.ai/route-optimization-api/
- type: TermsOfService
  name: Terms of Service (Laskar mobile application)
  url: https://kardinal.ai/terms-of-service-laskar/
- type: PrivacyPolicy
  url: https://kardinal.ai/privacy-policy/
- type: LegalNotice
  url: https://kardinal.ai/legal-notice/
- type: FAQ
  url: https://kardinal.ai/fr/faq-route-optimization/
- type: MCPServer
  url: mcp/kardinal-mcp.yml
- type: ToolCrosswalk
  url: mcp/kardinal-tool-crosswalk.yml
- type: AgentCard
  url: a2a/kardinal-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/kardinal-llms.txt
- type: Authentication
  url: authentication/kardinal-authentication.yml
- type: Conventions
  url: conventions/kardinal-conventions.yml
- type: Idempotency
  url: conventions/kardinal-conventions.yml
- type: ErrorCatalog
  url: errors/kardinal-error-codes.yml
- type: Lifecycle
  url: lifecycle/kardinal-lifecycle.yml
- type: Conformance
  url: conformance/kardinal-conformance.yml
- type: DataModel
  url: data-model/kardinal-data-model.yml
- type: Sandbox
  url: sandbox/kardinal-sandbox.yml
- type: Plans
  url: plans/kardinal-plans-pricing.yml
- type: Overlay
  url: overlays/kardinal-aro-overlay.yaml
- type: AgenticAccess
  url: agentic-access/kardinal-agentic-access.yml
- type: DomainSecurity
  url: security/kardinal-domain-security.yml
- type: Contact
  url: mailto:contact@kardinal.ai
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://developers.kardinal.ai/.well-known/agent-card.json
  grade: conformant
  protocol_version: '0.3'
  control: 404

Kardinal API — frequently asked questions

Does Kardinal have an API?

Yes. APIs.io lists 3 APIs from Kardinal, including Kardinal Plan API, Kardinal Solution API and Kardinal Webhook API.

Is there an OpenAPI specification for the Kardinal API?

Yes. APIs.io indexes 3 OpenAPI specifications for Kardinal, each linked for download from this page.

How do I authenticate with the Kardinal API?

Kardinal uses bearer-token authentication (http · 5 schemes). The details are profiled on APIs.io as Kardinal Authentication.

How much does the Kardinal API cost?

Kardinal publishes its prices; its Free tier plan is 1,000 free addresses as of 2026-10-28. APIs.io lists 2 pricing plans for Kardinal, with each plan's price, limits and inclusions under Pricing on this page.

Does Kardinal have an MCP server?

Yes. APIs.io lists 1 MCP server for Kardinal: Remote MCP server at developers.kardinal.ai over HTTP; 3 tools listed.

Is the Kardinal API ready for AI agents?

Kardinal has a Kin Score of 50.8 out of 100 (developing) and an Agent Readiness score of 36.7 (agent-ready), scored by API Evangelist on 2026-11-06.

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