Kasar

Kasar is an AI‑native CRM platform based in Paris that automates sales workflows by capturing emails, calls, meetings and messages, updating records in real time, and providing AI assistants like Leo to help teams prioritize prospects. It integrates with tools such as Airtable, Notion, Google Sheets, PostgreSQL and Supabase, and offers customizable pricing plans for teams of various sizes. The platform emphasizes data ownership, automation, and AI‑driven insights to boost sales efficiency.

Kasar is listed with 2 APIs on the APIs.io network. Tagged areas include CRM, AI-native, Sales, Automation, and Software-as-a-Service.

The Kasar catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Kasar’s developer surface includes authentication, pricing, engineering blog, API reference, getting-started guide, documentation, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.2/100 developing Agent 42/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

2 APIs

CRM AI-native Sales Automation Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 42.2/100 · developing

Contract Quality 7.7 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 8.7 / 17

Operational Transparency 3.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 5 / 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 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 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

5 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 36.1 — up to +16.0 composite points Ask about this →
Developer Ergonomics scores 42.9 — up to +11.4 composite points Ask about this →
Access Clarity scores 51.1 — up to +9.8 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/kasar-app/apis.yml: open an issue on github.com/api-evangelist/kasar-app 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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

Kasar API

The Kasar API lets external systems read and write records of a Kasar workspace. JSON over HTTPS, authenticated via integration key.

Kasar API

Kasar API as documented publicly: 43 operations. Contract generated from the documentation by API Evangelist (2026-11-13); not the provider's own document.

Kasar API pricing

Prices published by Kasar, read 2026-11-13 from kasar.app/pricing.

Plan	Price
Free	€ 0/mo
Pro	€ 59/mo
Max	€ 119/mo
Enterprise	On request

Plan details, limits and sources →

Rate limits

api:ip: 1,000 1 minute, fixed
api:burst: 10 1 second, fixed
api:token: 600 1 minute, fixed

All 7 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Kasar Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kasar Rate Limits

7 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Kasar App Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Kasar App Context

25 classes · 18 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Kasar API Rules

46 rules · 42 error-severity 3 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

GetApiV1ObjectsResponse

1 properties

JSON SCHEMA

PatchWebhooksDestinationsIdRequest

5 properties

JSON SCHEMA

PostApiV1ObjectsContactsRecordsRequest

2 properties

JSON SCHEMA

PostApiV1WebhooksDestinationsRequest

4 properties

JSON SCHEMA

PostWebhooksDestinationsRequest

1 properties

JSON SCHEMA

PutApiV1ObjectsContactsRecordsRequest

3 properties

JSON SCHEMA

Security Posture 2

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

Kasar Authentication

1 scheme

SECURITY

Kasar Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Idempotency

Conventions

Conformance

Webhooks

Scroll for all 9

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 3

The organization behind the API

Blog

Blog

Website

Website

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: kasar-app
name: Kasar
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://kasar.app/og/kasar-inbox-en.jpg
description: Kasar is an AI‑native CRM platform based in Paris that automates sales workflows by capturing emails, calls,
  meetings and messages, updating records in real time, and providing AI assistants like Leo to help teams prioritize prospects.
  It integrates with tools such as Airtable, Notion, Google Sheets, PostgreSQL and Supabase, and offers customizable pricing
  plans for teams of various sizes. The platform emphasizes data ownership, automation, and AI‑driven insights to boost sales
  efficiency.
url: https://artifacts.apis.io/kasar-app/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-13'
modified: '2026-11-13'
tags:
- CRM
- AI-native
- Sales
- Automation
- Software-as-a-Service
tags_raw:
- CRM
- AI-native
- Sales
- Automation
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/kasar-app-rate-limits.yml
- type: Plans
  url: plans/kasar-app-plans-pricing.yml
- type: Spectral
  url: rules/kasar-app-rules.yml
- type: JSONLD
  url: json-ld/kasar-app-context.jsonld
- type: Vocabulary
  url: vocabulary/kasar-app-vocabulary.yml
- type: Webhooks
  url: asyncapi/kasar-app-webhooks.yml
- type: DataModel
  url: data-model/kasar-app-data-model.yml
- type: Idempotency
  url: conventions/kasar-app-conventions.yml
- type: Conventions
  url: conventions/kasar-app-conventions.yml
- type: Authentication
  url: authentication/kasar-app-authentication.yml
- type: Conformance
  url: conformance/kasar-app-conformance.yml
- type: LLMsTxt
  url: llms/kasar-app-llms.txt
- type: WellKnown
  url: well-known/kasar-app-well-known.yml
- type: Hosts
  url: hosts/kasar-app-hosts.yml
- type: Vendors
  url: vendors/kasar-app-vendors.yml
- type: Webhooks
  url: https://kasar.app/integrations/webhooks
- type: TermsOfService
  url: https://kasar.app/legal-notice
- type: PrivacyPolicy
  url: https://kasar.app/privacy
- type: Pricing
  url: https://kasar.app/pricing
- type: Blog
  url: https://kasar.app/blog
- type: APIReference
  url: https://docs.kasar.app/docs/api-reference
- type: GettingStarted
  url: https://docs.kasar.app/docs/mcp/setup
- type: Documentation
  url: https://docs.kasar.app/
- type: DomainSecurity
  url: security/kasar-app-domain-security.yml
- type: Website
  url: https://kasar.app/
- type: DomainSecurity
  url: security/kasar-app-domain-security.yml
- type: Website
  url: https://kasar.app/
apis:
- name: Kasar API
  description: The Kasar API lets external systems read and write records of a Kasar workspace. JSON over HTTPS, authenticated
    via integration key.
  humanURL: https://docs.kasar.app/docs/api-reference.mdx
  baseURL: https://platform.kasar.app/api/v1
  aid: kasar-app:api
- aid: kasar-app:kasar-app-api
  name: Kasar API
  description: 'Kasar API as documented publicly: 43 operations. Contract generated from the documentation by API Evangelist
    (2026-11-13); not the provider''s own document.'
  humanURL: https://docs.kasar.app/docs/api-reference
  baseURL: https://platform.kasar.app
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/kasar-app-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/kasar-app-patch-webhooks-destinations-id-request-schema.json
  - type: JSONSchema
    url: json-schema/kasar-app-get-api-v1-objects-response-schema.json
  - type: JSONSchema
    url: json-schema/kasar-app-put-api-v1-objects-contacts-records-request-schema.json
  - type: JSONSchema
    url: json-schema/kasar-app-post-api-v1-webhooks-destinations-request-schema.json
  - type: JSONSchema
    url: json-schema/kasar-app-post-api-v1-objects-contacts-records-request-schema.json
  - type: JSONSchema
    url: json-schema/kasar-app-post-webhooks-destinations-request-schema.json
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 31
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Kasar API — frequently asked questions

Does Kasar have an API?

Yes. APIs.io lists 2 APIs from Kasar, including Kasar API and Kasar API.

Is there an OpenAPI specification for the Kasar API?

Yes. APIs.io indexes 1 OpenAPI specification for Kasar, each linked for download from this page.

How do I authenticate with the Kasar API?

Kasar documents its authentication (1 scheme). The details are profiled on APIs.io as Kasar Authentication.

How much does the Kasar API cost?

Kasar publishes its prices; its Free plan is € 0/mo as of 2026-11-13. APIs.io lists 4 pricing plans for Kasar, with each plan's price, limits and inclusions under Pricing on this page.

Is the Kasar API ready for AI agents?

Kasar has a Kin Score of 42.2 out of 100 (developing) and an Agent Readiness score of 41.7 (agent-ready), scored by API Evangelist on 2026-11-13.

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