Best Third-party API integration skills for Claude Code, Codex and other agents.

Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.

anthropics/skills

Manages a Sub2API deployment from the command line: accounts, redeem and invitation codes, groups, proxies, imports, exports and raw admin API calls.

Wei-Shaw/sub2api

Gets Firecrawl working in a project: signs you in through the browser, saves FIRECRAWL_API_KEY to .env and picks the first SDK or REST path.

firecrawl/firecrawl

Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.

shareAI-lab/learn-claude-code

Adds Firecrawl's /scrape endpoint to application code to pull markdown, HTML, links, screenshots or structured data from a single known URL.

firecrawl/firecrawl

Walks through writing an OpenCLI adapter for a new site or a new command on an existing one, from first recon and field decoding to coding and verification.

jackwener/OpenCLI

Adds web search, scraping, structured extraction and browser interaction to application code using Firecrawl's scrape, search and interact endpoints.

firecrawl/firecrawl

Turns an API description, such as an OpenAPI file or a Postman collection, into a connector plugin for ToolJet's marketplace and checks it with the repo's validator.

ToolJet/ToolJet

Fetches current documentation for third-party APIs and SDKs with the chub CLI before the agent writes code against them, instead of relying on remembered API shapes.

andrewyng/context-hub

Guides adding Firecrawl's /interact endpoint to product code for pages that need clicks, forms, pagination or logged-in flows beyond plain scraping.

firecrawl/firecrawl

Guidance for adding Firecrawl's /search endpoint to product code and agent workflows when a feature starts from a query rather than a URL.

firecrawl/firecrawl

Teaches an agent to use the Mission Control dashboard API: register, send heartbeats, fetch assigned tasks, report progress and disconnect, with API key auth.

builderz-labs/mission-control

Fetches structured Amazon product details such as title, price, ratings and availability for a given ASIN through BrowserAct's lookup API template.

browser-act/skills

Reference help for the CCXT library covering crypto exchange APIs, market data, trading and order management across 150+ exchanges in JavaScript, Python and PHP.

2025Emma/vibe-coding-cn

Guides building Flowsint enrichers and types: where definitions live, how the base class and vault work, and when a new type is warranted.

reconurge/flowsint

CoinGecko API documentation - cryptocurrency market data API, price feeds, market cap, volume, historical data. Use when integrating CoinGecko API…

2025Emma/vibe-coding-cn

Google API integration for blog performance: PageSpeed Insights, CrUX Core Web Vitals with 25-week history, Search Console performance, URL Inspection, Indexing API, GA4 organic traffic, NLP entity…

AgriciDaniel/claude-blog

Searches the step.parts catalog for purchasable CAD parts such as servos, motors, screws and bearings, picks a match and downloads its verified .step file.

earthtojake/step.parts

Answers TqSdk Python questions on market data, accounts, orders, margin trials, simulation and backtesting, using the library's own docs and examples.

shinnytech/tqsdk-python

Guides adding an LLM provider to DeepChat through explicit source changes: collect the provider details, pick a transport path and add registry entries and tests.

ThinkInAIXYZ/deepchat

Connects an agent to the AI-Trader platform's API to publish trading signals and follow traders, routing to child skills for copy trading, trade sync and market data.

HKUDS/AI-Trader

Answers questions about website traffic, monitors, surveys, events and billing from a Tianji instance using read-only GET calls checked against its live OpenAPI document.

msgbyte/tianji

Builds or extends a custom Mirage virtual filesystem adapter for an API, database, object store or app data, with a working mount configuration and filesystem tests.

strukto-ai/mirage

Base skill for the difyctl CLI: discover a Dify server's operations through help output and run them as commands, always with JSON output.

langgenius/dify

Records a site's browser traffic into a HAR file, then builds a standalone client or CLI that calls its internal endpoints directly with no browser.

vercel-labs/agent-browser

Zod schema validation best practices for type safety, parsing, and error handling.

jasonjgardner/blockbench-mcp-plugin

Guides building Tavily integrations for web search, URL extraction, site crawling and AI-assisted research in Python or JavaScript agent and RAG projects.

andrewyng/context-hub

Builds cross-chain token swaps and bridge flows with the NEAR Intents 1Click API: quotes, deposit addresses, per-chain deposits and status polling.

internet-court/internet-court-skill

Manages AI provider connections, API keys, OAuth flows and connection tests through OmniRoute's REST API across its 327-provider catalog.

diegosouzapw/OmniRoute

Uploads one Kleros-related file per paid request to IPFS through the Kleros x402 gateway for 0.01 USDC on Base, returning a CID that Kleros contracts can reference.

internet-court/internet-court-skill

Steps for adding or maintaining a WeChat official API in the WxJava SDK, following its Maven multi-module layout, Java 8 compatibility and TestNG test conventions.

binarywang/WxJava

Currency handling patterns for the Dinero.js money library. An agent skill from dinerojs/dinero.js.

dinerojs/dinero.js

Guides building, migrating and testing LangBot messaging-platform adapters for the Event-Based Agents layout, with unified event and message conversion.

langbot-app/LangBot

Extracts post data and speech transcripts from Douyin, Xiaohongshu and WeChat Channels share links and saves the transcripts as Markdown by author and title.

dontbesilent2025/dbskill

Polls the AI-Trader heartbeat API on a regular interval to reliably receive messages and tasks, treating the optional WebSocket feed as a non-guaranteed supplement.

HKUDS/AI-Trader

A skill your agent uses when working in the Cali repository or when you need to run, extend, or debug the Cali CLI for mobile React Native and Expo workflows.

callstackincubator/cali

Talks to a running DeerFlow agent platform over its HTTP API to send research questions, stream replies, check health and manage models, skills, memory and uploads.

bytedance/deer-flow

Reads the current temperature in Dubai from the Open-Meteo API with a single web fetch and returns it in Celsius or Fahrenheit.

shanraisshan/claude-code-best-practice

Adds or changes a DNS provider in the DDNS project while keeping its code, schemas, tests and Chinese and English docs consistent.

NewFuture/DDNS

Manages QQ guilds and their sub-channels, members, posts, announcements and schedules through the qqbot_platform_api tool.

tencent-connect/openclaw-qqbot

Builds reusable command line scripts that fetch, enrich or process data from the Hugging Face API, aimed at chained, repeated or automated tasks.

huggingface/skills

Plans a WxJava setup for Java, Spring Boot or Solon projects that call WeChat services, from module and BOM choice to config and a minimal working call.

binarywang/WxJava

Drives ArvanCloud's REST APIs for CDN, DNS, cloud servers, object storage and more, with helper scripts for calls, account inventory and certificates.

erfnzdeh/arvancloud-agent-skill

A skill your agent uses when adding or editing Nango integration documentation - creates and maintains integration pages, setup guides, connect guides, navigation, and provider metadata following…

NangoHQ/nango

Wires an app to the Yalidine (Guepex) Algerian courier API: parcels, zone lookups, delivery fees and verified delivery-status webhooks.

bighadj22/codflow

Recommends which WxJava Maven module, BOM and example entry point fits a given WeChat product and server setup, from official accounts to payments.

binarywang/WxJava

Looks up Polymarket market details and orderbook prices straight from Polymarket's public APIs and resolves outcome tokens for later simulated trades.

HKUDS/AI-Trader

Guides building on the 0G Compute Network, a decentralized GPU marketplace for AI inference and fine-tuning, with SDK patterns and CLI commands.

internet-court/internet-court-skill