Context Plugins Marketplace

SDK-native API context, delivered directly into your AI coding agent.

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What this is

Coding agents hallucinate APIs. They are trained on public code and documentation — much of it outdated — and have no awareness of the API version you are actually on, the current SDK, or the integration workflow the SDK author recommends.

This repository is the context-plugins marketplace: a collection of 52 plugins, one per API, that give your agent authoritative, version-aware, SDK-native context at the moment it's needed. Every plugin is generated from the API's definition and its APIMatic-generated SDKs, so the agent is grounded in the real SDK contract instead of guessing from memory.

Each plugin works in Claude Code, Cursor, and VS Code (Copilot).

Install a plugin

The plugins here are installed with the context-plugins CLI, which installs into every AI coding assistant on your machine with one command:

npx context-plugins install paypal

To see everything this marketplace offers:

npx context-plugins list

Node.js 18+ is all you need — the CLI is not installed globally, npx runs it from a cache. See the installer README for options, uninstalling, and troubleshooting.

Adding the marketplace to Claude Code directly

The CLI does this for you, but if you would rather drive Claude Code yourself:

claude plugin marketplace add context-plugins/plugin-marketplace
claude plugin install paypal@context-plugins --scope user

Then run /reload-plugins, or start a new claude session.

Available plugins

52 plugins, listed in [`.claude-plugin/marketplace.json`](.claude-plugin/marketplace.json).

The Languages column is the set of SDK languages that plugin ships skills for.

Plugin	API	Languages
adyen	Adyen	.NET, TS, Java, Python
akoya	Akoya	.NET, TS, Java, PHP, Python, Ruby
alpaca	Alpaca	.NET, TS, Java, PHP, Python, Ruby
binance	Binance	.NET, TS
boku	Boku	.NET, TS, Java, PHP, Python, Ruby
cellpoint	CellPoint	.NET, Java, PHP, Python
coingecko	Coingecko	.NET, TS, Java, PHP, Python, Ruby
deepgram	Deepgram	.NET, TS, Java, PHP, Python
discourse	Discourse	.NET, TS, Java, PHP, Python, Ruby
ebay-sell	eBay Sell	.NET, TS, Java, PHP, Python, Ruby
fdx	Fdx	.NET, TS, Java, Python, Ruby
finnhub	Finnhub	.NET, TS, Java, PHP, Python, Ruby
firecrawl	Firecrawl	.NET, TS, Java, PHP, Python, Ruby
frankfurter	Frankfurter	.NET, TS, Java, PHP, Python, Ruby
geoapify	Geoapify	.NET, TS, Java, PHP, Python, Ruby
gitea	Gitea	.NET, Java, PHP, Python
goe	GOE	.NET, TS, Java, PHP, Python, Ruby
google-maps-platform	Google-maps-platform	.NET, TS, Java, PHP, Python, Ruby
greenbyte	Greenbyte	.NET, TS, Java, PHP, Python
klarna	Klarna	.NET, Java, PHP, Python, Ruby
kubernetes	Kubernetes	.NET
maxio	Maxio	.NET, TS, Java, PHP, Python, Ruby
mindbody	Mindbody	.NET, TS, Java, PHP, Python, Ruby
mist	Mist	.NET
newstore	Newstore	TS, Java, Python, Ruby
notion	Notion	.NET, Java, Python, Ruby
nytimes	Nytimes	.NET, TS, Java, PHP, Python, Ruby
paragon	Paragon	.NET, TS, PHP
paypal	PayPal	.NET, TS, Java, PHP, Python, Ruby
payquicker	Payquicker	.NET, Java, PHP, Python, Ruby
paze	Paze	.NET, TS, Java, PHP, Python
pokeapi	PokeApi	.NET, TS, Java, PHP, Python, Ruby
postnl	Postnl	.NET, TS, Java, PHP, Python, Ruby
shell-cardmanagement	Shell-cardmanagement	.NET, TS, Java, PHP, Python, Ruby
shell-dataandreporting	Shell-dataandreporting	.NET, TS, Java, PHP, Python, Ruby
shell-digitalpayments	Shell-digitalpayments	.NET, TS, Java, PHP, Python, Ruby
shell-ev	Shell-ev	.NET, TS, Java, PHP, Python, Ruby
shutterstock	Shutterstock	.NET, TS, Java, PHP, Python, Ruby
slack	Slack	.NET, TS, Java, PHP, Python, Ruby
splitit	Splitit	.NET, TS, Java, PHP, Python, Ruby
sportsdata	Sportsdata	.NET, TS, PHP, Python, Ruby
spotify-web-api	Spotify Web API	.NET, TS, Java, PHP, Python, Ruby
square	Square	.NET, TS, Java, PHP, Ruby
stax-fattmerchant-api	Stax (FattMerchant) API	.NET, TS, Java, PHP, Python, Ruby
tesla	Tesla	.NET, TS, Java, PHP, Python
tesser-api-v1	Tesser API (v1)	.NET, TS, Java, PHP, Python, Ruby
twilio	Twilio	.NET
univa	Univa	Java, PHP, Python, Ruby
verizon	Verizon	.NET, TS, Java, PHP, Python
vimeo	Vimeo	.NET, TS, Java, PHP, Python, Ruby
x-api-v2	X API v2	.NET, PHP, Python, Ruby
xero	Xero	.NET

Plugin ids change occasionally. npx context-plugins list is always the live source of truth.

What's inside a plugin

Every plugin is a set of skills — Markdown files your agent loads on demand, by description. Each supported language ships the same eight:

Skill	Covers
{lang}-getting-started	SDK identity, install, and how to navigate the generated source
{lang}-client-initialization	Constructing and configuring the client
{lang}-authentication	Every auth scheme the API supports
{lang}-calling-endpoints	Method signatures, request models, reading responses
{lang}-models	Unions, enums, collections, dates, unknown fields
{lang}-error-handling	Which exception is thrown, and what it carries
{lang}-configuration-resilience	Retries, timeouts, pagination, logging
{lang}-testing	The test seam, and how to stub it

The getting-started skill is the entry point: it directs the agent to clone and grep the real SDK source, so every fact is grounded in the actual contract rather than model knowledge.

Across the marketplace that's 261 language packs and 2,138 skills. See plugins/paypal/README.md for a worked example.

Repository structure

.claude-plugin/marketplace.json    the registry Claude Code reads
.cursor-plugin/marketplace.json    the same registry, Cursor format
plugins/<plugin-id>/
  plugin.json                      manifest (VS Code / Copilot format)
  .claude-plugin/plugin.json       Claude Code manifest
  .cursor-plugin/plugin.json       Cursor manifest
  README.md                        what this plugin covers
  assets/logo.svg
  skills/<language>/<skill>/SKILL.md
docs/cross-platform-agents.md      authoring agents that work across all three IDEs

Each plugin carries one manifest per IDE so the same folder installs cleanly into Claude Code, Cursor, and VS Code.

Contributing

To add a plugin:

1. Create plugins/<plugin-id>/ following the structure above. Use a kebab-case id — it's what users type after install, and it must match the name in every manifest.
2. Add all three manifests, plus a README.md describing the API and the languages covered.
3. Register it in both .claude-plugin/marketplace.json and .cursor-plugin/marketplace.json.
4. Verify with npx context-plugins list and a real install.

Writing agents that work across all three assistants is covered in docs/cross-platform-agents.md.

Renaming a plugin breaks the id users have already installed, so treat ids as a public contract.

Learn more

• APIMatic Context Plugins — the product
• context-plugins CLI — the installer

License

MIT — see LICENSE.txt.