Backend and APIs

19,593 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

firecrawl-build

01

firecrawl/firecrawl

Skill Claude CodeCodex

Integrate Firecrawl into application code whenever a product, agent, or workflow needs web data inside the app — web search, live search results, page scraping, structured extraction, or browser interaction. Use when building any feature that needs data from the web in code, even if the user does not mention Firecrawl…

not rated 199k +1.9k today A SkillSpector: warn 149 tokens AGPL-3.0

fastapi

02

fastapi/fastapi

Skill Claude CodeCodex

FastAPI best practices and conventions. Use when working with FastAPI APIs, Pydantic models, dependencies, streaming responses including Server-Sent Events (SSE), and serving frontend apps. Keeps FastAPI code clean and up to date with the latest features and patterns.

not rated 104k +238 changed 28d ago A ✓ AI review Socket: passSnyk: passSkillSpector: pass 57 tokens original MIT

omni-inference

03

diegosouzapw/OmniRoute

Skill Claude CodeCodex

The core OpenAI-compatible inference endpoints: chat completions, embeddings, images, audio (TTS/STT), moderations, rerank, and the Responses API. The primary integration surface for AI agents.

not rated 83k changed 19d ago A Socket: passSnyk: warnSkillSpector: warn 47 tokens original MIT

claude-api

04

warpdotdev/warp

Skill Claude CodeCodex

Build, debug, and optimize Claude API / Anthropic SDK apps. Apps built with this skill should include prompt caching. Also handles migrating existing Claude API code between Claude model versions (4.5 → 4.6, 4.6 → 4.7, retired-model replacements). TRIGGER when: code imports anthropic/@anthropic-ai/sdk; user asks for…

not rated 66k +91 today A SkillSpector: warn 193 tokens AGPL-3.0

writing-blogs

05

appwrite/appwrite

Skill Cursor ✓ vendor

Writes, structures, and formats SEO-optimized blog posts for the Appwrite blog following established conventions for voice, tone, frontmatter, and post structure. Use when the user asks to write, draft, create, or outline a blog post, or when working with files in src/content/blog/posts/.

not rated 58k +69 yesterday A 64 tokens original BSD-3-Clause

alchemy-provider

06

pingdotgg/t3code

Skill Claude CodeCodex needs its repo

Bring up a new Alchemy cloud provider (its own @alchemy.run/ package under packages/ ) end to end — credentials, a distilled SDK, resources, bindings, live tests, and the patch loop that feeds live-test failures back into distilled — or extend an existing provider with a new service, or bring an existing provider up…

not rated 48k +16k today A 153 tokens original MIT

payload

07

payloadcms/payload

Skill Claude CodeCodex

Use when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries, transactions, or hook behavior.

not rated 46k +89 changed 1mo ago A Socket: passSnyk: passSkillSpector: warn 43 tokens original MIT

sub2api-admin

08

Wei-Shaw/sub2api

Skill Codex

Manage Sub2API admin APIs for accounts, redeem codes, groups, proxies, error passthrough rules, TLS fingerprint profiles, imports, exports, batch updates, and raw administrator API calls. Use when the user mentions Sub2API, admin API keys, account management, redeem code management, recharge codes, invitation codes…

not rated 46k +361 yesterday A ✓ AI review SkillSpector: pass 101 tokens LGPL-3.0

PostHog/posthog

Skill Claude CodeCodex

Implement and extend PostHog Data warehouse import sources. Use when adding a new source under products/warehousesources/sources/ (or changing one there or under products/warehousesources/backend/temporal/dataimports/sources), adding datasets/endpoints to an existing source, or adding incremental sync, resumable…

not rated 41k +136 changed today A SkillSpector: warn 83 tokens

tushare

11

HKUDS/Vibe-Trading

Skill Claude CodeCodex

A Python interface for Tushare, a financial data service that provides market and company information for stocks, funds, futures, and digital assets. It returns queried data as pandas tables.

not rated 38k +494 yesterday A ✓ AI review Snyk: passSkillSpector: warn 79 tokens original MIT

binarywang/WxJava

Skill Codex

A decision guide for choosing the correct WxJava Maven module, dependency management file, and example for a WeChat use case. WxJava is a Java software development kit for services such as official accounts, mini programs, and payments.

not rated 33k +13 4d ago A SkillSpector: pass 86 tokens original Apache-2.0

supermemory

13

supermemoryai/supermemory

Skill Claude CodeCodex

Supermemory is a state-of-the-art memory and context infrastructure for AI agents. Use this skill when building applications that need persistent memory, user personalization, long-term context retention, or semantic search across knowledge bases. It provides Memory API for learned user context, User Profiles for…

not rated 32k +72 changed 1mo ago A Socket: passSnyk: warnSkillSpector: pass 81 tokens original MIT

nocobase/nocobase

Skill Claude CodeCodex

Primary entry for building complete NocoBase 3 applications and individual features: business and administration pages, routes, components, endpoints, data, permissions, services, translations, and tests. Use this application-local workflow instead of globally installed NocoBase 2 Skills. For local or published…

not rated 25k +50 changed yesterday A 78 tokens

notebooklm

15

teng-lin/notebooklm-py

Skill Claude CodeCodex

Install, authenticate, troubleshoot, and operate Gemini Notebook through the notebooklm-py CLI or typed async Python API. Use for notebook and source management, grounded chat and research, and artifact generation or download when the user mentions Gemini Notebook, notebooklm-py, the notebooklm CLI, or its Python API.…

not rated 20k +125 changed 1mo ago A 79 tokens original MIT

mcp

16

keploy/keploy

MCP server Claude CodeCodexCursor +2

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic. Remote server at api.keploy.io.

not rated 19k +545 today A tokens not measured original Apache-2.0

iii-observe

17

iii-hq/iii

Skill Claude CodeCodex

Use when observing iii functions with iii.observe, writing filters, reacting to engine events, writing observable functions with owner delivery (onObserverAdded, obs.emit, obs.call), tuning local dispatch, or migrating from the deprecated registerTrigger / registerTriggerType across TypeScript, browser, Python, Rust…

not rated 19k +50 changed 3d ago A Socket: passSnyk: pass 66 tokens

langbot-app/LangBot

Skill Claude CodeCodex

Build, refactor, and test LangBot platform adapters for the Event-Based Agents architecture. Use when adding or migrating Telegram, Discord, or other messaging platform adapters to the EBA adapter layout, validating unified event/message conversion, writing live adapter probes, or using standalone plugin runtime plus…

not rated 19k +134 changed today A Snyk: warnSkillSpector: warn 73 tokens original Apache-2.0

zhihu-search

19

itwanger/toBeBetterJavaer

Skill Claude CodeCodex

A search skill for finding content on Zhihu, a Chinese question-and-answer and article platform, through its search API.

not rated 18k +24 yesterday A SkillSpector: pass 103 tokens

superset-sh/superset

Skill Claude Code

Write Stripe code against what the API does today — plan the product shape, confirm every parameter from Stripe's own docs and schemas, and keep the agent in a sandbox. Use when adding checkout, billing, subscriptions, invoicing, or webhooks to a codebase, or when debugging Stripe integration code that compiles but…

not rated 16k 5d ago A 74 tokens

cursor/plugins

Plugin Cursor ✓ vendor

Manage records, users, and org setup across Salesforce.

not rated 15k +768 yesterday A tokens not measured

perf-optimize

23

NVIDIA/TensorRT-LLM

Skill Claude Code ✓ vendor

Launch and operate this repo's perf-optimize workflow, which iteratively APPLIES TensorRT-LLM serving optimizations — baseline benchmark at one concurrency or a Pareto curve of them (tok/s/user vs tok/s/gpu), analytical SOL projection on by default (via the internal-perf-sol-analysis skill) sizing the headroom the…

not rated 15k +41 changed 1mo ago A SkillSpector: warn 224 tokens

stripe-projects

24

e2b-dev/E2B

Skill Claude CodeCodex

Use after E2B sandbox/API access has been provisioned through Stripe Projects and the user needs to use the resulting E2B API key with the E2B CLI, JavaScript SDK, Python SDK, or Code Interpreter SDK.

not rated 15k +104 changed 23d ago A SkillSpector: warn 51 tokens original Apache-2.0

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