Backend and APIs

18,746 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.

secure-code-auditor

1201

n-shadloo/secure-code-auditor

Cursor rule Cursor

Backend security review and secure-by-default coding for Django and DRF, on an OWASP Top 10:2025, API Security Top 10:2023, and ASVS 5.0 foundation. Apply when backend code is written or reviewed and touches authentication, sessions, cookies, JWT, OAuth2/OIDC, API keys, password hashing, permissions, access control…

not rated 4 9d ago A 244 tokens original MIT

code-like-djangonout

1202

vigo/claude-skills

Skill Claude CodeCodex

Provides Django web framework expertise including project structure, models, views, admin, Celery tasks, testing, and Python best practices. Use when generating, analyzing, refactoring, or reviewing Django/Python code.

not rated 4 3mo ago A 49 tokens original MIT

engaging-networks-api

1203

orkestre-ai/orkestre-engaging-networks

Skill Claude CodeCodex

Engaging Networks Public API integration for nonprofit data synchronization and reporting. Use when implementing Engaging Networks Public API calls, building campaign widgets, creating donor rolls, fetching supporter counts, retrieving donation summaries, or integrating EN data with external systems. Supports…

not rated 4 5mo ago A 85 tokens original MIT

emmanuelperu/microcks-skills

Skill Claude CodeCodex needs its repo

Write OpenAPI examples that work with Microcks dispatchers for API mocking. Covers example pairing rules, JSON body dispatching, Groovy script dispatching, and dispatcher configuration via the Microcks API.

not rated 4 5mo ago A 47 tokens original Apache-2.0

sbox

1205

fobiat/sbox-skill

Plugin Claude Code

Bundles 1 skill · 228 tokens together

Teaches a coding agent the real s&box API from 17 source-verified reference files, so it stops writing Unity patterns into a Source 2 project. Verified against engine 26.08.05.

not rated 4 19d ago A tokens not measured

royalti-api

1206

Royalti-io/royalti-api-skill

Plugin Claude Code

Bundles 1 skill · 96 tokens together

Royalti.io REST API v2.6 developer reference. Authentication, CRUD patterns, pagination, error handling, webhooks, WebSocket events, data models, DDEX distribution, AI chat, source creator, global search, checklist workflows, music publishing and billing.

not rated 4 20d ago A tokens not measured original MIT

hewr-srood/tanstack-appoperation-kit

Skill Cursor

Standardize how API requests are defined and consumed via AppOperation together with TanStack Query. Use in React Native/Expo projects when the user mentions appOperation, QUERYKEYS, api.ts from this kit, or wants to add new API calls, hooks, or screens that talk to the backend.

not rated 4 6mo ago A 66 tokens

maestro-skills

1209

ddtcorex/maestro-skills

Plugin Claude Code

Bundles 31 skills · 2,205 tokens together

Maestro Skills Hub & Cordis Plugin -- Magento 2 (architecture, linting, performance, security), Govard dev-environment orchestration, and the superpowers process-skills library (forked from obra/superpowers).

not rated 4 changed yesterday A tokens not measured original MIT

fortrabbit-api-access

1210

fortrabbit/agent-skills

Skill Claude Code

Use when connecting an agent, MCP client, or script to fortrabbit — installing the fortrabbit MCP server (mcp.fortrabbit.com/mcp), calling the /v1 REST API, or resolving 401 / "Authentication required" / "Invalid access token" errors. Prefers the browser-based OAuth install (no credential handling) and falls back to a…

not rated 4 changed 8d ago C 223 tokens original MIT

hypersolutions

1211

Hyper-Solutions/hypersolutions-claude-code

Plugin Claude Code

Bundles 1 skill, 2 MCP servers · 245 tokens together

Integrate and debug the Hyper Solutions anti-bot API (Akamai, Incapsula, DataDome, Kasada) across the Go, Python, and JS/TS SDKs and raw REST. Bundles a request-debugging workflow: capture traffic via the powhttp MCP or analyze an exported HAR via the har-analyzer MCP, and apply a full rule set for…

not rated 4 1mo ago A tokens not measured

Pets

1214

liliang-cn/mcp-swagger-server

Skill Claude CodeCodex

API operations for pets (6 endpoints).

not rated 4 3mo ago A 10 tokens original MIT

convex

1215

outfitter-dev/carabiner

MCP server Claude CodeCodexCursor +2

One of 4 in .mcp.json

Client for the Convex Cloud. Runs locally from the convex npm package.

not rated 4 7mo ago A tokens not measured original MIT

axon

1216

dinglebear-ai/axon

Plugin Claude Code

Bundles 26 skills, 1 command, 1 agent · 919 tokens together

Self-hosted RAG engine in Rust: crawl, scrape, ingest, embed, and query any source, with hybrid retrieval and cited LLM synthesis over MCP, CLI, and REST.

not rated 4 changed 6d ago A tokens not measured AGPL-3.0

stitchkit

1217

max-listov/stitchkit

Skill Claude CodeCodex

Build or change a backend with stitchkit — the contract-first framework where one defineContract() becomes an HTTP API, MCP tools, AI-agent tools, a CLI and a typed client. Use this whenever working in a project that depends on stitchkit: defining or editing a contract, implementing handlers, exposing endpoints as MCP…

not rated 4 changed 6d ago A 0 tokens original MIT

aco-architect

1218

yoonhwan/ai-codex-orchestrator

Skill Claude CodeCodex

A system-architecture skill for designing software structure, writing API specifications, defining review rules, and creating diagrams.

not rated 4 6mo ago A 29 tokens

coco-delivery

1219

pcopu/coco

Skill Claude CodeCodex

Implement and verify CoCo features end-to-end (Telegram commands, callbacks, app-server transport, queueing, watchdogs, approvals, and tests). Use when changing this repository's bot behavior and needing repo-specific file targets, workflows, and validation commands. NOT for generic Python tasks outside CoCo.

not rated 4 10d ago A 65 tokens original MIT

backend-assistant

1222

swadhinsekhar/cursor-rules-golang

Cursor rule Cursor

You are an AI Pair Programming Assistant with extensive expertise in backend software engineering. Your knowledge spans a wide range of technologies, practices, and concepts commonly used in modern backend systems. Your role is to provide comprehensive, insightful, and practical advice on various backend development…

not rated 4 1y ago A 0 tokens

test-kitchen

1223

2389-research/test-kitchen

Plugin Claude Code

Bundles 4 skills · 257 tokens together

Parallel exploration of implementation approaches - run multiple variants simultaneously and let tests determine the winner.

not rated 4 2mo ago A tokens not measured original MIT

flask

1224

rishapgandhi/python-skills

Skill Claude CodeCodex

Skill "flask" from rishapgandhi/python-skills, covering flask skill, stack, project structure, app factory and app/init.py.

not rated 4 3mo ago A 0 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: