kapa.ai

kapa.ai is an AI assistant and answer platform that turns technical documentation, GitHub content, forums, and developer products into a retrieval-augmented chat experience. The kapa.ai Query API lets teams ask questions, run threaded conversations with streaming answers, perform semantic retrieval and search, and pull analytics over projects and threads via a REST interface authenticated with an X-API-KEY header.

kapa.ai publishes 6 API contracts indexed on the APIs.io network, including Analytics API, Chat API, Feedback API, and 3 more. Tagged areas include Artificial Intelligence, Answer Engine, RAG, Documentation, and Developer Tools.

The kapa.ai catalog on APIs.io includes 1 Spectral governance ruleset.

kapa.ai’s developer surface includes pricing, authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.0/100 thin ▬ flat Agent 42/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 1 MCP Servers

Artificial Intelligence Answer Engine RAG Documentation Developer Tools

What this lets a business do 2

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

AI Model Services

AE-110

Threads

POST /query/v1/threads/{thread_id}/chat

Customer Service Management

BC-430

Chat

POST /query/v1/projects/{project_id}/chat

Kin Score

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

Composite quality — 36.0/100 · thin

Contract Quality 9.5 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 5.1 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.2 / 9

Discoverability 5.1 / 8

Regulatory Posture 0.8 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 42/100 · 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 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 5 / 5

Registration Without a Human 6 / 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):

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) 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 →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

6 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 32.1 — up to +13.6 composite points Ask about this →
Access Clarity scores 34.0 — up to +13.2 composite points Ask about this →
Contract Quality scores 50.8 — up to +12.3 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/kapa-ai/apis.yml: open an issue on github.com/api-evangelist/kapa-ai 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 6

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

kapa.ai Analytics API

Activity, coverage gaps, and top questions.

kapa.ai Chat API

Ask questions and create threads.

kapa.ai Feedback API

Submit reactions on answers.

kapa.ai Projects API

Projects, integrations, and sources.

kapa.ai Retrieval API

Semantic retrieval and keyword search.

kapa.ai Threads API

List, retrieve, and continue conversations.

Open Collections 7

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

kapa.ai Query Analytics API

OPEN COLLECTION

kapa.ai Query Analytics Chat API

OPEN COLLECTION

kapa.ai Query Analytics Feedback API

OPEN COLLECTION

kapa.ai Query Analytics Projects API

OPEN COLLECTION

kapa.ai Query Analytics Retrieval API

OPEN COLLECTION

kapa.ai Query Analytics Threads API

OPEN COLLECTION

kapa.ai Query API

OPEN COLLECTION

Scroll for all 7

MCP Servers 1

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

kapa.ai MCP Server

Remote MCP server at kapa-docs.mcp.kapa.ai over HTTP.

MCP SERVER

kapa.ai API pricing

Prices published by kapa.ai, read 2026-10-07 from www.kapa.ai/pricing.

Plan	Price
Free trial	$0 for 14 days Includes: 1 index, 5,000 pages crawled; 5,000 retrieval queries, 1,000 answers; 1,000 PDF pages/month; 500 MB
Growth	Usage-based Includes: Platform fee plus committed answers; sized to you
Enterprise	Custom Includes: Everything in Growth, SSO/SCIM/RBAC, EU hosting, premium support and SLA

Plan details, limits and sources →

Rate limits

Monthly Questions Quota: see agreement questions
Requests Per Minute (RPM): see provider documentation requests
Concurrent Requests: see provider documentation concurrent

Compiled by API Evangelist, not yet checked against kapa.ai's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

kapa.ai Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

kapa.ai Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

kapa.ai Finops

FINOPS

Spectral Rules 1

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

kapa.ai API Rules

68 rules · 62 error-severity 5 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

kapa.ai Authentication

apiKey · 1 scheme

SECURITY

kapa.ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

kapa.ai Agentic Access

20 operations · 7 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: kapa-ai
url: https://raw.githubusercontent.com/api-evangelist/kapa-ai/refs/heads/main/apis.yml
name: kapa.ai
kind: company
description: kapa.ai is an AI assistant and answer platform that turns technical documentation, GitHub content, forums, and
  developer products into a retrieval-augmented chat experience. The kapa.ai Query API lets teams ask questions, run threaded
  conversations with streaming answers, perform semantic retrieval and search, and pull analytics over projects and threads
  via a REST interface authenticated with an X-API-KEY header.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kapa-ai.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
x-docs-hosting: vercel
tags:
- Artificial Intelligence
- Answer Engine
- RAG
- Documentation
- Developer Tools
tags_raw:
- AI
- Answer Engine
- RAG
- Documentation
- Developer Tools
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: kapa-ai:kapa-ai-analytics-api
  name: kapa.ai Analytics API
  description: Activity, coverage gaps, and top questions.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-analytics-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
- aid: kapa-ai:kapa-ai-chat-api
  name: kapa.ai Chat API
  description: Ask questions and create threads.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Chat
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-chat-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
- aid: kapa-ai:kapa-ai-feedback-api
  name: kapa.ai Feedback API
  description: Submit reactions on answers.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Feedback
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-feedback-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
- aid: kapa-ai:kapa-ai-projects-api
  name: kapa.ai Projects API
  description: Projects, integrations, and sources.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-projects-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
- aid: kapa-ai:kapa-ai-retrieval-api
  name: kapa.ai Retrieval API
  description: Semantic retrieval and keyword search.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Retrieval
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-retrieval-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
- aid: kapa-ai:kapa-ai-threads-api
  name: kapa.ai Threads API
  description: List, retrieve, and continue conversations.
  humanURL: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  baseURL: https://api.kapa.ai/query/v1
  tags:
  - Threads
  properties:
  - type: OpenAPI
    url: openapi/kapa-ai-threads-api-openapi.yml
  - type: Documentation
    url: https://docs.kapa.ai/api/quickstart
  - type: APIReference
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-chat
  - type: PostmanCollection
    url: collections/kapa-ai.postman_collection.json
  - type: OpenCollection
    url: collections/kapa-ai.opencollection.json
  - type: Documentation
    url: https://docs.kapa.ai/analytics/conversations
  - type: APIReference
    url: https://docs.kapa.ai/api/reference
  - type: Documentation
    url: https://docs.kapa.ai/api/reference/query-v-1-projects-retrieval
  - type: Documentation
    url: https://docs.kapa.ai/api/overview
  - type: Documentation
    url: https://docs.kapa.ai/api/reference
common:
- type: Pricing
  url: https://www.kapa.ai/pricing
- type: CapabilityMap
  url: capabilities/kapa-ai-capability-edges.yml
  name: kapa.ai Business Capability Map
- type: AgenticAccess
  url: agentic-access/kapa-ai-agentic-access.yml
- type: DomainSecurity
  url: security/kapa-ai-domain-security.yml
- type: Authentication
  url: authentication/kapa-ai-authentication.yml
- type: GitHubOrganization
  url: https://github.com/kapa-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/kapa-ai
- type: Website
  url: https://www.kapa.ai
- type: Documentation
  url: https://docs.kapa.ai
- type: Plans
  url: plans/kapa-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kapa-ai-rate-limits.yml
- type: FinOps
  url: finops/kapa-ai-finops.yml
- type: Blog
  url: https://www.kapa.ai/blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

kapa.ai API — frequently asked questions

Does kapa.ai have an API?

Yes. APIs.io lists 6 APIs from kapa.ai, including kapa.ai Analytics API, kapa.ai Chat API and kapa.ai Feedback API, and 3 more.

Is there an OpenAPI specification for the kapa.ai API?

Yes. APIs.io indexes 6 OpenAPI specifications for kapa.ai, each linked for download from this page.

How do I authenticate with the kapa.ai API?

kapa.ai documents its authentication (apiKey · 1 scheme). The details are profiled on APIs.io as kapa.ai Authentication.

How much does the kapa.ai API cost?

kapa.ai publishes its prices; its Free trial plan is $0 for 14 days as of 2026-10-07. APIs.io lists 3 pricing plans for kapa.ai, with each plan's price, limits and inclusions under Pricing on this page.

Does kapa.ai have an MCP server?

Yes. APIs.io lists 1 MCP server for kapa.ai: Remote MCP server at kapa-docs.mcp.kapa.ai over HTTP.

Is the kapa.ai API ready for AI agents?

kapa.ai has a Kin Score of 36.0 out of 100 (thin) and an Agent Readiness score of 42.4 (agent-ready), scored by API Evangelist on 2026-11-13.

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