aid: kannkidas-de
name: Kann KI das? Sponsoring Agent
description: 'Kann KI das? is an independent German-language publisher of build-or-buy test reports that assess
  whether well-known business software can realistically be rebuilt with AI, and where buying remains the better
  decision. The site is financed by ten fixed, clearly labelled sponsor placements (P01-P10, 990 EUR net for 30
  days) that are sold through an agent-native commerce path: a public OpenAPI 3.1.1 contract at kannkidas.de/openapi.json
  (faceted product search, live slot availability, anonymous OAuth 2.0 client registration and client-credentials
  tokens, and a buyer-confirmed, idempotent Stripe hosted checkout), a remote Streamable HTTP MCP server with two
  tools, a read-only A2A agent at /api/a2a with a published agent card, RFC 8414/9728 OAuth discovery, an RFC 9727
  API catalog, provider-published Agent Skills with SHA-256 digests, llms.txt and AGENTS.md, a UCP profile, DNS-AID
  records and a separately marked x402 v2 testnet demo endpoint. The sponsor agent operates in read-only mode; commercial
  writes require OAuth scopes and explicit buyer confirmation.'
image: https://kannkidas.de/og-default.jpg
url: https://raw.githubusercontent.com/api-evangelist/kannkidas-de/refs/heads/main/apis.yml
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: 'enrichment pass 2026-09-19: full contract discovery run; OpenAPI, A2A agent card, remote MCP server,
  OAuth discovery and provider-published skills all found on kannkidas.de'
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Company
- Sponsoring
- Advertising
- Software Reviews
- Build vs Buy
- Search
- Agent-Native
- MCP
- A2A
- Authentication
- x402
- Stripe Checkout
- Germany
tags_raw:
- Company
- Sponsoring
- Advertising
- Software Reviews
- Build vs Buy
- Search
- Agent-native
- MCP
- A2A
- OAuth
- x402
- Stripe Checkout
- Germany
- agent-native
apis:
- aid: kannkidas-de:kann-ki-das-sponsorship-mcp-server
  name: Kann KI das? Sponsorship MCP Server
  description: >-
    Remote Model Context Protocol server (Streamable HTTP, protocol revision 2025-06-18) at https://kannkidas.de/api/mcp
    named kannkidas-sponsorship. Anonymous initialize and tools/list succeed and return two tools with
    full input and output schemas: list_sponsor_slots (read-only) and create_sponsor_checkout (OAuth sponsorship:write,
    explicit buyer confirmation, idempotency key). A server card is published at /.well-known/mcp/server-card.json
    and the server is listed on Smithery.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api/mcp
  tags:
  - MCP
  - Agent-Native
  - Sponsoring
  tags_raw:
  - MCP
  - Agent-native
  - Sponsoring
  - agent-native
  properties:
  - type: MCPServer
    url: mcp/kannkidas-de-mcp.yml
  - type: MCPServer
    url: https://kannkidas.de/api/mcp
  - type: ToolCrosswalk
    url: mcp/kannkidas-de-tool-crosswalk.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Examples
    url: examples/kannkidas-de-mcp-tools-list-example.json
  image: https://kannkidas.de/og-default.jpg
- aid: kannkidas-de:kann-ki-das-sponsoring-agent-a2a
  name: Kann KI das? Sponsoring Agent (A2A)
  description: >-
    Read-only Agent2Agent JSON-RPC endpoint at https://kannkidas.de/api/a2a described by the agent card
    at /.well-known/agent-card.json (A2A protocolVersion 0.3.0). One skill, list-sponsor-slots, returns
    the verified live status of the ten fixed sponsor slots as a data artifact; the agent never reserves
    or purchases and points buyers to the documented OAuth and Stripe checkout path.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api/a2a
  tags:
  - A2A
  - Agent-Native
  - Sponsoring
  tags_raw:
  - A2A
  - Agent-native
  - Sponsoring
  - agent-native
  properties:
  - type: AgentCard
    url: a2a/kannkidas-de-a2a.yml
  - type: AgentCard
    url: https://kannkidas.de/.well-known/agent-card.json
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: Examples
    url: examples/kannkidas-de-a2a-message-send-example.json
  image: https://kannkidas.de/og-default.jpg
- aid: kannkidas-de:kannkidas-de-agent-api
  name: Kann KI das? Sponsoring Agent Agent API
  description: The Agent API from Kann KI das? Sponsoring Agent — 3 operation(s) for agent.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api
  tags:
  - Agent
  properties:
  - type: OpenAPI
    url: openapi/kannkidas-de-agent-api-openapi.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: APIReference
    url: https://kannkidas.de/openapi.json
  - type: GettingStarted
    url: https://kannkidas.de/AGENTS.md
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Pricing
    url: https://kannkidas.de/pricing.md
  - type: JSONSchema
    url: json-schema/kannkidas-de-agent-purchase.json
  - type: Examples
    url: examples/kannkidas-de-list-sponsor-slots-example.json
  - type: Examples
    url: examples/kannkidas-de-search-products-example.json
  - type: Examples
    url: examples/kannkidas-de-x402-buyer-brief-402-example.json
  - type: Conventions
    url: conventions/kannkidas-de-conventions.yml
  - type: Idempotency
    url: conventions/kannkidas-de-conventions.yml
  - type: ErrorCatalog
    url: errors/kannkidas-de-problem-types.yml
  - type: DataModel
    url: data-model/kannkidas-de-data-model.yml
  - type: RateLimits
    url: rate-limits/kannkidas-de-rate-limits.yml
  - type: Plans
    url: plans/kannkidas-de-plans-pricing.yml
  - type: Sandbox
    url: sandbox/kannkidas-de-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kannkidas-de-lifecycle.yml
  - type: Conformance
    url: conformance/kannkidas-de-conformance.yml
- aid: kannkidas-de:kannkidas-de-kann-ki-das-api-api
  name: Kann KI das? Sponsoring Agent Kann KI Das? API
  description: >-
    The Kann KI Das? API API from Kann KI das? Sponsoring Agent — 1 operation(s) for kann ki das? api.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api
  tags:
  - Kann KI Das? API
  properties:
  - type: OpenAPI
    url: openapi/kannkidas-de-kann-ki-das-api-api-openapi.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: APIReference
    url: https://kannkidas.de/openapi.json
  - type: GettingStarted
    url: https://kannkidas.de/AGENTS.md
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Pricing
    url: https://kannkidas.de/pricing.md
  - type: JSONSchema
    url: json-schema/kannkidas-de-agent-purchase.json
  - type: Examples
    url: examples/kannkidas-de-list-sponsor-slots-example.json
  - type: Examples
    url: examples/kannkidas-de-search-products-example.json
  - type: Examples
    url: examples/kannkidas-de-x402-buyer-brief-402-example.json
  - type: Conventions
    url: conventions/kannkidas-de-conventions.yml
  - type: Idempotency
    url: conventions/kannkidas-de-conventions.yml
  - type: ErrorCatalog
    url: errors/kannkidas-de-problem-types.yml
  - type: DataModel
    url: data-model/kannkidas-de-data-model.yml
  - type: RateLimits
    url: rate-limits/kannkidas-de-rate-limits.yml
  - type: Plans
    url: plans/kannkidas-de-plans-pricing.yml
  - type: Sandbox
    url: sandbox/kannkidas-de-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kannkidas-de-lifecycle.yml
  - type: Conformance
    url: conformance/kannkidas-de-conformance.yml
- aid: kannkidas-de:kannkidas-de-oauth-api
  name: Kann KI das? Sponsoring Agent OAuth API
  description: The Oauth API from Kann KI das? Sponsoring Agent — 1 operation(s) for oauth.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api
  tags:
  - Oauth
  properties:
  - type: OpenAPI
    url: openapi/kannkidas-de-oauth-api-openapi.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: APIReference
    url: https://kannkidas.de/openapi.json
  - type: GettingStarted
    url: https://kannkidas.de/AGENTS.md
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Pricing
    url: https://kannkidas.de/pricing.md
  - type: JSONSchema
    url: json-schema/kannkidas-de-agent-purchase.json
  - type: Examples
    url: examples/kannkidas-de-list-sponsor-slots-example.json
  - type: Examples
    url: examples/kannkidas-de-search-products-example.json
  - type: Examples
    url: examples/kannkidas-de-x402-buyer-brief-402-example.json
  - type: Conventions
    url: conventions/kannkidas-de-conventions.yml
  - type: Idempotency
    url: conventions/kannkidas-de-conventions.yml
  - type: ErrorCatalog
    url: errors/kannkidas-de-problem-types.yml
  - type: DataModel
    url: data-model/kannkidas-de-data-model.yml
  - type: RateLimits
    url: rate-limits/kannkidas-de-rate-limits.yml
  - type: Plans
    url: plans/kannkidas-de-plans-pricing.yml
  - type: Sandbox
    url: sandbox/kannkidas-de-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kannkidas-de-lifecycle.yml
  - type: Conformance
    url: conformance/kannkidas-de-conformance.yml
- aid: kannkidas-de:kannkidas-de-search-api
  name: Kann KI das? Sponsoring Agent Search API
  description: The Search API from Kann KI das? Sponsoring Agent — 3 operation(s) for search.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/kannkidas-de-search-api-openapi.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: APIReference
    url: https://kannkidas.de/openapi.json
  - type: GettingStarted
    url: https://kannkidas.de/AGENTS.md
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Pricing
    url: https://kannkidas.de/pricing.md
  - type: JSONSchema
    url: json-schema/kannkidas-de-agent-purchase.json
  - type: Examples
    url: examples/kannkidas-de-list-sponsor-slots-example.json
  - type: Examples
    url: examples/kannkidas-de-search-products-example.json
  - type: Examples
    url: examples/kannkidas-de-x402-buyer-brief-402-example.json
  - type: Conventions
    url: conventions/kannkidas-de-conventions.yml
  - type: Idempotency
    url: conventions/kannkidas-de-conventions.yml
  - type: ErrorCatalog
    url: errors/kannkidas-de-problem-types.yml
  - type: DataModel
    url: data-model/kannkidas-de-data-model.yml
  - type: RateLimits
    url: rate-limits/kannkidas-de-rate-limits.yml
  - type: Plans
    url: plans/kannkidas-de-plans-pricing.yml
  - type: Sandbox
    url: sandbox/kannkidas-de-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kannkidas-de-lifecycle.yml
  - type: Conformance
    url: conformance/kannkidas-de-conformance.yml
- aid: kannkidas-de:kannkidas-de-slots-api
  name: Kann KI das? Sponsoring Agent Slots API
  description: The Slots API from Kann KI das? Sponsoring Agent — 1 operation(s) for slots.
  humanURL: https://kannkidas.de/agents/
  baseURL: https://kannkidas.de/api
  tags:
  - Slots
  properties:
  - type: OpenAPI
    url: openapi/kannkidas-de-slots-api-openapi.yml
  - type: Documentation
    url: https://kannkidas.de/agents/
  - type: APIReference
    url: https://kannkidas.de/openapi.json
  - type: GettingStarted
    url: https://kannkidas.de/AGENTS.md
  - type: Authentication
    url: https://kannkidas.de/auth.md
  - type: Pricing
    url: https://kannkidas.de/pricing.md
  - type: JSONSchema
    url: json-schema/kannkidas-de-agent-purchase.json
  - type: Examples
    url: examples/kannkidas-de-list-sponsor-slots-example.json
  - type: Examples
    url: examples/kannkidas-de-search-products-example.json
  - type: Examples
    url: examples/kannkidas-de-x402-buyer-brief-402-example.json
  - type: Conventions
    url: conventions/kannkidas-de-conventions.yml
  - type: Idempotency
    url: conventions/kannkidas-de-conventions.yml
  - type: ErrorCatalog
    url: errors/kannkidas-de-problem-types.yml
  - type: DataModel
    url: data-model/kannkidas-de-data-model.yml
  - type: RateLimits
    url: rate-limits/kannkidas-de-rate-limits.yml
  - type: Plans
    url: plans/kannkidas-de-plans-pricing.yml
  - type: Sandbox
    url: sandbox/kannkidas-de-sandbox.yml
  - type: Lifecycle
    url: lifecycle/kannkidas-de-lifecycle.yml
  - type: Conformance
    url: conformance/kannkidas-de-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/kannkidas-de-agentic-access.yml
- type: DomainSecurity
  url: security/kannkidas-de-domain-security.yml
- type: Authentication
  url: authentication/kannkidas-de-authentication.yml
- type: OAuthScopes
  url: scopes/kannkidas-de-scopes.yml
- type: Website
  url: https://kannkidas.de/
- type: DeveloperPortal
  url: https://kannkidas.de/agents/
- type: Documentation
  url: https://kannkidas.de/agents/
- type: GettingStarted
  url: https://kannkidas.de/AGENTS.md
- type: AgentsMd
  url: https://kannkidas.de/AGENTS.md
- type: APIReference
  url: https://kannkidas.de/openapi.json
- type: LLMsTxt
  url: llms/kannkidas-de-llms.txt
- type: LLMsTxt
  url: https://kannkidas.de/llms.txt
- type: WellKnown
  url: well-known/kannkidas-de-well-known.yml
- type: APICatalog
  url: https://kannkidas.de/.well-known/api-catalog
- type: OpenIDConnect
  url: https://kannkidas.de/.well-known/openid-configuration
- type: ContentSignal
  url: https://kannkidas.de/robots.txt
- type: MCPServer
  url: mcp/kannkidas-de-mcp.yml
- type: ToolCrosswalk
  url: mcp/kannkidas-de-tool-crosswalk.yml
- type: AgentCard
  url: a2a/kannkidas-de-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgentSkill
  name: buy-sponsorship (provider-published)
  url: skills/kannkidas-de-buy-sponsorship.md
- type: AgentSkill
  name: find-software (provider-published)
  url: skills/kannkidas-de-find-software.md
- type: Conventions
  url: conventions/kannkidas-de-conventions.yml
- type: Idempotency
  url: conventions/kannkidas-de-conventions.yml
- type: Conformance
  url: conformance/kannkidas-de-conformance.yml
- type: ErrorCatalog
  url: errors/kannkidas-de-problem-types.yml
- type: Lifecycle
  url: lifecycle/kannkidas-de-lifecycle.yml
- type: DataModel
  url: data-model/kannkidas-de-data-model.yml
- type: Plans
  url: plans/kannkidas-de-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kannkidas-de-rate-limits.yml
- type: Sandbox
  url: sandbox/kannkidas-de-sandbox.yml
- type: Overlay
  url: overlays/kannkidas-de-openapi-overlay.yaml
- type: JSONSchema
  url: json-schema/kannkidas-de-agent-purchase.json
- type: Pricing
  url: https://kannkidas.de/sponsoring/
- type: Pricing
  name: pricing.md (machine-readable)
  url: https://kannkidas.de/pricing.md
- type: TermsOfService
  url: https://kannkidas.de/nutzungsbedingungen/
- type: PrivacyPolicy
  url: https://kannkidas.de/datenschutz/
- type: About
  url: https://kannkidas.de/ueber-uns/
- type: Blog
  url: https://kannkidas.de/ratgeber/
- type: BlogRSS
  url: https://kannkidas.de/feed.xml
- type: Sitemap
  url: https://kannkidas.de/sitemap-index.xml
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 43
  pass: local-v3
x-x402:
  verified: true
  probed: '2026-09-24'
  url: "https://kannkidas.de/api/v1"
  evidence:
  - "header:payment-required"
  control: 404
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: "https://kannkidas.de/.well-known/agent-card.json"
  grade: "conformant"
  protocol_version: "0.3.0"
  control: 404