MagicX website screenshot

MagicX

MagicX Inc. builds software that lets people take actions instantly from any text box. Its flagship developer product, AI Autocomplete, is a drop-in SDK and HTTP API that turns a blank input into instant intent — guiding users on what to type with roughly 200ms suggestions, delivered as native SDKs for React, Angular, Vanilla JS and Swift or a framework-agnostic HTTP API. Auth uses public, secret, and short-lived access-token keys, and pricing is usage-based per prediction with a SOC 2 enterprise tier. MagicX also ships Hero Assistant, a consumer AI assistant. The company is backed by Forerunner Ventures.

MagicX publishes 1 API on the APIs.io network. Tagged areas include Company, AI, Autocomplete, Developer Tools, and SDK.

MagicX’s developer surface includes documentation, API reference, getting-started guide, pricing, authentication, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.1/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyAIAutocompleteDeveloper ToolsSDKNatural LanguageProductivityMachine Learning

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 34.1/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/magicx: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

AI Autocomplete API

Framework-agnostic HTTP API behind the AI Autocomplete SDKs. A single POST /api/suggest endpoint drives keystroke-by-keystroke guided autocomplete over a placeholder-based query...

MCP Servers 1

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

magicx-mcp.yml

MCP SERVER

Security Posture 2

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

Magicx Authentication

http · 3 schemes

SECURITY

Magicx Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs

Access & Security 3

Authentication, authorization, and security posture

Compliance
Compliance
 Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter
HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: magicx
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/magicx.png
name: MagicX
description: MagicX Inc. builds software that lets people take actions instantly from any text box. Its flagship developer
  product, AI Autocomplete, is a drop-in SDK and HTTP API that turns a blank input into instant intent — guiding users on
  what to type with roughly 200ms suggestions, delivered as native SDKs for React, Angular, Vanilla JS and Swift or a framework-agnostic
  HTTP API. Auth uses public, secret, and short-lived access-token keys, and pricing is usage-based per prediction with a
  SOC 2 enterprise tier. MagicX also ships Hero Assistant, a consumer AI assistant. The company is backed by Forerunner Ventures.
url: https://raw.githubusercontent.com/api-evangelist/magicx/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- forerunner-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 11
  pass: local-v1
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- AI
- Autocomplete
- Developer Tools
- SDK
- Natural Language
- Productivity
- Machine Learning
apis:
- name: AI Autocomplete API
  description: Framework-agnostic HTTP API behind the AI Autocomplete SDKs. A single POST /api/suggest endpoint drives keystroke-by-keystroke
    guided autocomplete over a placeholder-based query model, with a POST /api/auth/token endpoint that exchanges a secret
    key for a short-lived access token. Bearer auth with public (pk_v1_), secret (sk_v1_) and access-token (at_v1_) keys.
  humanURL: https://ai-autocomplete.com/docs/http/getting-started
  baseURL: https://api.ai-autocomplete.com
  tags:
  - Autocomplete
  - AI
  - NLP
  properties:
  - type: Documentation
    url: https://ai-autocomplete.com/docs
  - type: APIReference
    url: https://ai-autocomplete.com/docs/http/api-reference
  - type: GettingStarted
    url: https://ai-autocomplete.com/docs/http/getting-started
  - type: Authentication
    url: https://ai-autocomplete.com/docs/http/authentication
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://magicx.ai
- type: DeveloperPortal
  url: https://ai-autocomplete.com/
- type: Documentation
  url: https://ai-autocomplete.com/docs
- type: APIReference
  url: https://ai-autocomplete.com/docs/http/api-reference
- type: GettingStarted
  url: https://ai-autocomplete.com/docs/http/getting-started
- type: Pricing
  url: https://ai-autocomplete.com/other/pricing
- type: HelpCenter
  url: https://ai-autocomplete.com/other/faqs
- type: Login
  url: https://ai-autocomplete.com/account/keys
- type: TermsOfService
  url: https://ai-autocomplete.com/legal/terms
- type: PrivacyPolicy
  url: https://ai-autocomplete.com/legal/privacy
- type: Compliance
  url: https://ai-autocomplete.com/other/enterprise
- type: LLMsTxt
  url: llms/magicx-llms.txt
- type: Packages
  url: packages/magicx-packages.yml
- type: SDKs
  url: packages/magicx-packages.yml
- type: Authentication
  url: authentication/magicx-authentication.yml
- type: Conventions
  url: conventions/magicx-conventions.yml
- type: ErrorCatalog
  url: errors/magicx-problem-types.yml
- type: MCPServer
  url: mcp/magicx-mcp.yml
- type: Conformance
  url: conformance/magicx-conformance.yml
- type: DomainSecurity
  url: security/magicx-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml