Backend and APIs

19,654 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.

SidneyBissoli/senado-br-mcp-cloudflare

MCP server Claude CodeCodexCursor +2

MCP server for Brazilian Federal Senate open data (legislative, administrative, e-Cidadania). Runs locally from the senado-br-mcp npm package.

not rated 6 4d ago A tokens not measured original MIT

x-openapi-flow-mcp

1106

tiago-marques/x-openapi-flow

MCP server Claude CodeCodexCursor +2

OpenAPI lifecycle guard and MCP sidecar for policy-driven API orchestration. Runs locally from the x-openapi-flow npm package.

not rated 6 1mo ago A tokens not measured original MIT

jaipilot

1107

JAIPilot/jaipilot

MCP server Claude CodeCodexCursor +2

Ship better Java with your coding agent. Remote server at api.jaipilot.com.

not rated 6 23d ago A tokens not measured original MIT

plaxis-mcp

1108

yixuanzhong/PLAXIS-MCP

MCP server Claude CodeCodexCursor +2

Client-neutral stdio MCP server for PLAXIS Remote Scripting. Runs locally from the plaxis-mcp Python package.

not rated 6 3mo ago A tokens not measured original MIT

jeffsenso/prestashop-skills

Skill Claude CodeCodex

Complete PrestaShop module development workflow using modern architecture and best practices. Use when: creating new PrestaShop modules, updating legacy modules to modern code, implementing hooks and actions, setting up module configuration pages, adding front office features, handling database operations…

not rated 6 changed 3d ago A 89 tokens original MIT

agent-public-apis

1112

hfcorriez/agent-public-apis

Skill Claude CodeCodex

Call verified no-key public APIs. Use when the user needs a free HTTPS API with no signup — weather, geo, news, crypto, dictionaries, test data, or any category in the index.

not rated 6 2mo ago A 45 tokens original MIT

standaarden

1113

developer-overheid-nl/skills-standaarden

Plugin Claude Code

Bundles 10 skills · 435 tokens together

CONCEPT — Skills voor Nederlandse overheidsstandaarden (beheerd door Logius): API Design Rules, Digikoppeling, OAuth NL, FSC, Logboek Dataverwerkingen, CloudEvents, BOMOS, E-Government en Publicatie-tooling. Bevat 10 skills voor 77 GitHub repositories verdeeld over 9 domeinen.

not rated 6 changed 7d ago A tokens not measured EUPL-1.2

abp-dev

1114

smss123/ABP-ai-skills

Skill Claude CodeCodex

Expert guide for developing applications with the ABP Framework (abp.io) using ASP.NET Core, DDD patterns, and MVC / Razor Pages / Angular / Blazor / .NET MAUI / React Native UI. Use this skill whenever the user mentions ABP, abp.io, Volo.Abp, AbpModule, application services, aggregate roots, domain services, ABP CLI…

not rated 6 changed 6d ago A 251 tokens GPL-3.0

oastools

1115

erraggy/oastools

Plugin Claude Code

Bundles 5 skills, 1 hook · 86 tokens together

OpenAPI Specification tools — validate, fix, convert, diff, walk, and generate from OAS 2.0-3.2 documents.

not rated 6 26d ago A tokens not measured original MIT

srnichols/plan-forge

Instructions file GitHub Copilot needs its repo

Dapr patterns for .NET — building blocks, component config, sidecar architecture, multi-tenant isolation, workflows, state management, secrets.

not rated 6 changed 1mo ago A ✓ AI review 4,975 tokens original MIT

aftermath-perpetuals

1117

AftermathFinance/skills

Skill Claude CodeCodex

Integrate and troubleshoot the current Aftermath HTTP/OpenAPI and WebSocket API, including native perpetuals, CCXT, DCA and limit orders, pools, farms, staking, prices, auxiliary utilities, wallet/auth endpoints, and operational safety. Use for raw Aftermath API requests, endpoint schemas, API failures, and API-side…

not rated 6 1mo ago A 89 tokens original Apache-2.0

backend

1118

workdd/my_claude_code_setting

Agent Claude Code

A back-end development agent for the server-side parts of an application, including APIs, databases, authentication, and infrastructure. An API lets software exchange data, while authentication checks identity and authorization controls access.

not rated 6 4mo ago A 89 tokens original Apache-2.0

ai-actions-requests

1119

freshworks-developers/fw-dev-tools

Cursor rule Cursor

Cursor rule "ai-actions-requests" from freshworks-developers/fw-dev-tools, covering ai actions request templates, config/requests.json, substitution, rules and config/iparams.json.

not rated 6 +1 1mo ago A 0 tokens original MIT

api-doc-writer

1120

forest6511/claude-code-recipes-v2

Skill Claude Code

A tool that creates REST API documentation in OpenAPI 3.1, a standard format for describing how web APIs work. It can document new or existing endpoints and check API changes in pull requests.

not rated 6 6mo ago A 49 tokens original MIT

agent-proxy

1121

yechao-zhang/red-team-agent-skills

Skill Claude Code

Auto-discover and communicate with any AI agent given its URL via API. Supports REST APIs (OpenAI, Anthropic, Ollama), WebSockets, and Gradio apps. Claude Code acts as the user, automatically detecting the agent's API interface and sending messages. Use when: (1) User provides an API endpoint URL, (2) Need to automate…

not rated 6 9mo ago A 85 tokens original MIT

ignify-rd/odoo19-module-development-skill

Skill Claude CodeCodex

Use when writing, reviewing, debugging, or scaffolding any Odoo 19 module. Covers module structure, models, views, security, menus, data files, wizards, OWL components, custom HTML/JS/CSS dashboards, and common Odoo 19 pitfalls. Integrates ui-ux-pro-max for custom UI design (dashboards, portals, landing pages) using…

not rated 6 6mo ago B 172 tokens

auth

1123

agentry-ai/agentry

Skill Claude CodeCodex

Use when the user says something like "add login", "users need to sign in", "I want auth", "gate this behind a user account". The auth surface (login / signup / OAuth / sessions) is NOT something you build. Read this whole page before touching auth code.

not rated 6 3mo ago A 0 tokens original Apache-2.0

backend-api-standards

1124

ErikaAX08/erikas-skills

Skill Claude CodeCodex

Defines mandatory standards for REST API contracts and data format, including unified response structure, OpenAPI documentation, ULID identifiers, JWT auth headers, mandatory entity fields, and HTTP status codes. Framework-agnostic — describes what the API must return, not how to build it.

not rated 6 changed 13d ago A 61 tokens original Apache-2.0

hono-best-practices

1125

valuin/hono-best-practices

Skill Claude CodeCodex

Production patterns for Hono v4+ backends with Bun, Drizzle ORM, Better Auth, Stoker, hono-openapi + Zod + Scalar, and TDD with Bun test runner. Use when building features, writing tests, reviewing code, or setting up auth/RBAC in modular monolith Hono projects. Apply whenever you see Hono route definitions…

not rated 6 7mo ago A 121 tokens

etsy-api

1126

J-DTurner/etsy-api-skill

Skill Claude Code

Manages Etsy shop operations (listings, inventory, receipts/orders, shop data, taxonomy, and webhooks) via Etsy Open API v3 with OAuth 2.0 + PKCE and rate-limit-aware request handling.

not rated 6 9mo ago A 48 tokens original MIT

xt-net

1127

JKorf/XT.Net

Cursor rule Cursor

Conventions for using the XT.Net library when working with the XT cryptocurrency exchange in C#/.NET. Apply when generating code that interacts with the XT API.

not rated 6 changed 1mo ago A 0 tokens original MIT

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