aid: clix-so
name: Clix
description: 'Clix is a US-based, developer-first mobile push notification platform for iOS, Android, React Native
  and Flutter — one CLI command (clix install) automates Firebase Cloud Messaging and APNs setup, and the console
  adds behaviour-triggered and API-triggered campaigns, real-time delivery logs, full-funnel analytics and device/user
  lifecycle management, priced free to 100K active devices then $30/month. For developers and agents it publishes
  a small REST API at https://api.clix.so (OpenAPI 3.1.0 generated from clix/external/v1/clix.proto: 11 operations
  across users, devices, events, messages:send, live-activities:start and campaigns/{id}:trigger, authenticated
  with X-Clix-Project-ID + X-Clix-API-Key), an A2A agent at https://api.clix.so/a2a whose card at /.well-known/agent-card.json
  is served in both 0.3.0 and 1.0 shapes and exposes four skills (create-user, track-event, send-push-notification,
  trigger-campaign) with idempotency keys, SSE streaming, task cancellation and task webhooks, a stdio MCP server
  (@clix-so/clix-mcp-server) plus a Mintlify docs MCP endpoint — both documentation-only — an open agent-skills
  repo, first-party SDKs on Maven Central, CocoaPods/SwiftPM, pub.dev and npm, a self-hosted status page with a
  published 99.5% monthly SLO, and console-configured PUSH_SENT/PUSH_FAILED webhooks.'
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - clix-so/clix-mcp-server
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
image: https://clix.so/opengraph-image?04675f86137dbf70
url: https://raw.githubusercontent.com/api-evangelist/clix-so/refs/heads/main/apis.yml
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-19 (local-v3; was a2a-registry harvest stub)
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-24
tags:
- Push Notifications
- Mobile
- Messaging
- Campaigns
- Event Tracking
- Customer Engagement
- A2A
- MCP
- Agents
- SDK
- United States
- Company
tags_raw:
- Push Notifications
- Mobile
- Messaging
- Campaigns
- Event Tracking
- Customer Engagement
- A2A
- MCP
- Agents
- SDKs
- United States
- Company
apis:
- aid: clix-so:clix-a2a-agent
  name: Clix A2A Agent
  description: >-
    Agent2Agent (A2A) protocol surface: a public agent card at https://api.clix.so/.well-known/agent-card.json
    (0.3.0 shape by default, 1.0 shape under the A2A-Version: 1.0 header; graded conformant) and a JSON-RPC
    2.0 endpoint at POST https://api.clix.so/a2a authenticated with a secret X-API-Key (clix_sk_ prefix).
    Four built-in skills — create-user, track-event, send-push-notification, trigger-campaign — each a
    projection of one REST operation, executed as tasks with SendMessage / SendStreamingMessage (SSE),
    GetTask, ListTasks (cursor pagination), CancelTask, task webhooks (CreateTaskPushNotificationConfig)
    and an authenticated extended card. Adds what the REST layer lacks: X-Clix-Idempotency-Key replay
    protection with 409 semantics and X-Request-ID tracing. The anonymous endpoint answers 401 Missing
    API key.
  humanURL: https://docs.clix.so/a2a/overview
  baseURL: https://api.clix.so/a2a
  tags:
  - A2A
  - Agents
  - Agent-Native
  - Push Notifications
  tags_raw:
  - A2A
  - Agents
  - agent-native
  - Push Notifications
  properties:
  - type: AgentCard
    url: a2a/clix-so-a2a.yml
  - type: AgentCard
    name: A2A Agent Card (provider-hosted)
    url: https://api.clix.so/.well-known/agent-card.json
  - type: Documentation
    url: https://docs.clix.so/a2a/overview
  - type: APIReference
    url: https://docs.clix.so/a2a/api-reference
  - type: GettingStarted
    url: https://docs.clix.so/a2a/quickstart
  - type: ToolCrosswalk
    url: mcp/clix-so-tool-crosswalk.yml
- aid: clix-so:clix-mcp-server
  name: Clix MCP Server
  description: >-
    Model Context Protocol surfaces, both documentation-only: the provider's stdio server @clix-so/clix-mcp-server
    0.1.4 (npx -y @clix-so/clix-mcp-server@latest; tools search_docs and search_sdk over the docs llms.txt
    and the four SDK repos; installed by `clix mcp`), and a Mintlify-served Streamable HTTP endpoint at
    https://docs.clix.so/mcp that answers initialize and tools/list anonymously (protocol 2025-06-18;
    search_clix_documentation, query_docs_filesystem_clix_documentation, submit_feedback; resource mintlify://skills/clix).
    Neither executes Clix operations — the docs direct agents to A2A for that.
  humanURL: https://docs.clix.so/mcp-server/clix-mcp-server
  baseURL: https://docs.clix.so/mcp
  tags:
  - MCP
  - Agents
  - Documentation
  properties:
  - type: MCPServer
    url: mcp/clix-so-mcp.yml
  - type: MCPServer
    name: Mintlify docs MCP endpoint (Streamable HTTP)
    url: https://docs.clix.so/mcp
  - type: Documentation
    url: https://docs.clix.so/mcp-server/clix-mcp-server
  - type: SourceCode
    url: https://github.com/clix-so/clix-mcp-server
  - type: ToolCrosswalk
    url: mcp/clix-so-tool-crosswalk.yml
- aid: clix-so:clix-so-clixexternalservice-api
  name: Clix Clix External Service API
  description: The ClixExternalService API from Clix — 10 operation(s) for clixexternalservice.
  humanURL: https://docs.clix.so/api-reference/overview
  baseURL: https://api.clix.so
  tags:
  - ClixExternalService
  properties:
  - type: OpenAPI
    url: openapi/clix-so-clixexternalservice-api-openapi.yml
  - type: Documentation
    url: https://docs.clix.so/api-reference/overview
  - type: APIReference
    url: https://docs.clix.so/api-reference/overview
  - type: RateLimits
    url: https://docs.clix.so/api-reference/rate-limits
  - type: Webhooks
    url: https://docs.clix.so/integrations/webhook
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/clix-so-openapi-overlay.yaml
- type: Website
  url: https://clix.so/
- type: DeveloperPortal
  url: https://docs.clix.so/
- type: Documentation
  url: https://docs.clix.so/
- type: APIReference
  url: https://docs.clix.so/api-reference/overview
- type: GettingStarted
  url: https://docs.clix.so/sdk-quickstart-ios
- type: Login
  url: https://console.clix.so/
- type: Pricing
  url: https://clix.so/pricing
- type: TermsOfService
  url: https://clix.so/terms
- type: PrivacyPolicy
  url: https://clix.so/privacy
- type: StatusPage
  url: https://clix.so/status
- type: SLA
  url: https://clix.so/availability
- type: Blog
  url: https://blog.clix.so/
- type: BlogRSS
  url: https://blog.clix.so/rss/
- type: GitHubOrganization
  url: https://github.com/clix-so
- type: Support
  url: https://docs.clix.so/troubleshooting/not-getting-push-notification
- type: LLMsTxt
  url: llms/clix-so-llms.txt
- type: LLMsTxt
  name: llms.txt (provider-hosted)
  url: https://docs.clix.so/llms.txt
- type: AgentCard
  url: a2a/clix-so-a2a.yml
- type: MCPServer
  url: mcp/clix-so-mcp.yml
- type: ToolCrosswalk
  url: mcp/clix-so-tool-crosswalk.yml
- type: WellKnown
  url: well-known/clix-so-well-known.yml
- type: Packages
  url: packages/clix-so-packages.yml
- type: SDKs
  url: packages/clix-so-packages.yml
- type: CLI
  url: cli/clix-so-cli.yml
- type: Authentication
  url: authentication/clix-so-authentication.yml
- type: Conventions
  url: conventions/clix-so-conventions.yml
- type: Idempotency
  url: conventions/clix-so-conventions.yml
- type: ErrorCatalog
  url: errors/clix-so-problem-types.yml
- type: Lifecycle
  url: lifecycle/clix-so-lifecycle.yml
- type: ChangeLog
  url: changelog/clix-so-changelog.yml
- type: Conformance
  url: conformance/clix-so-conformance.yml
- type: RateLimits
  url: rate-limits/clix-so-rate-limits.yml
- type: Plans
  url: plans/clix-so-plans-pricing.yml
- type: Webhooks
  url: asyncapi/clix-so-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/clix-so-data-model.yml
- type: DomainSecurity
  url: security/clix-so-domain-security.yml
- type: DataSubjectRequest
  url: https://clix.so/privacy
- type: DataResidency
  url: https://clix.so/availability
- type: IncidentNotification
  url: https://docs.clix.so/ops/incident-communication
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 27
  pass: local-v3
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: "https://api.clix.so/.well-known/agent-card.json"
  grade: "conformant"
  protocol_version: "0.3.0"
  control: 404