Best backend and API skills, page 19

Guides an agent through the Tiger Brokers OpenAPI C++ SDK for build setup, market data, orders and real-time push, defaulting to paper trading.

qusong0627/QuantMind

Interact with the Hypatia AI memory system using natural language.

MarchLiu/hypatia

Generate, build, and test Azure SDKs locally from TypeSpec with automatic customization.

Azure/azure-sdk-for-android

Backend API design specialist. An agent skill from selmakcby/claude-agents-skills.

selmakcby/claude-agents-skills

A skill your agent uses whenever an LLM agent needs to search, browse, or download 3D models from Poly Pizza (poly.pizza) using their REST API.

jasonkneen/tiny-world-builder

A skill your agent uses when configuring OAuth providers (Google/GitHub/Apple/X/etc.), setting up post-login auth hooks, tuning JWT lifetimes, or generating service API keys

butterbase-ai/butterbase-skills

Compose AuthEndpoints 3.x in an ASP.NET Core host — AddAuthEndpoints, UseAuthEndpoints, MapAuthEndpoints, cookie vs Identity bearer vs Simple JWT, passkeys, CSRF, ReAuth, and production options.

madeyoga/AuthEndpoints

AAMP (Agent-to-Agent Mail Protocol) via aamp-cli. An agent skill from larksuite/aamp.

larksuite/aamp

Channel webhook triage for vercel-openclaw Slack/Telegram/Discord/WhatsApp issues: prove deployment state, collect admin readiness endpoints, build evidence-first handoff before fixes.

vercel-labs/vercel-openclaw-archived

Add or change an API call between the app and its backends — the Touch'N'Stars plugin server (C), the NINA Advanced API, or the PINS daemon.

Touch-N-Stars/Touch-N-Stars

Reviews and authors Cloudflare Workers code against production best practices.

hodgef/apiker

Designs system architecture and selects technology stack based on vision analysis.

YougLin-dev/Aha-Loop

Activate when creating or modifying Vue 3 components, pages, layouts, stores, or services in the frontend.

gdarko/laravel-vue-starter

Integrates applications with the SoundCloud HTTP API using OAuth 2.1, OpenAPI, and developer docs.

soundcloud/api

Fetch contract ABIs from Sourcify, Etherscan, and 4Byte Directory using the composite ABIInfoStorage pattern (.NET/C).

Nethereum/Nethereum

Use BEFORE adding any new tool, parameter, or endpoint to the Apple Mail MCP server.

s-morgan-jeffries/apple-mail-fast-mcp

Generate comprehensive, accurate API documentation from source code. Use when creating or updating API documentation, generating OpenAPI specs, or…

luongnv89/claude-howto

Ingest whatever you point at into an AKB vault — a local file, a web URL, a GitHub PR/release/commit, a Confluence page, or a Jira issue.

dnotitia/akb

Create production grade smart contracts. An agent skill from Cyfrin/solskill.

Cyfrin/solskill

The single command that gets a DashClaw change ON MAIN AND LIVE — it resolves everything blocking production, never defers, and never hands back a checklist.

ucsandman/DashClaw

Browses open tasks on the TaskMarket agent-worker market and, with explicit operator approval, creates tasks, tracks submissions and submits finished work.

aeonfun/aeon

Review PRs and diffs for unbounded memory loading, concurrency explosions, oversized payload materialization, and missing pagination or byte caps.

simstudioai/sim

Inspects and configures the web application firewall (WAF) in front of a Power Pages production site.

microsoft/power-platform-skills

Create or delegate Tenuo warrants from natural-language authority requirements.

tenuo-ai/tenuo

Provision Microsoft Entra Agent Identity Blueprints, BlueprintPrincipals, and per-instance Agent Identities via Microsoft Graph, and configure OAuth 2.0 token exchange (fmipath, OBO, cross-tenant)…

microsoft/GitHub-Copilot-for-Azure

Create or refactor Foundry deployment fixtures for Solidity tests.

aviggiano/security

Interact with third-party or self-hosted services (Slack, Google Workspace, Dropbox, GitHub, Linear, Coolify...) using their HTTP APIs on the user's behalf.

imbue-ai/latchkey

A skill your agent uses when the user wants to review, audit, improve, or plan email sending best practices.

openinary/openinary

Design tools, scripts, and CLIs that an agent will call, so the interface teaches its own use instead of a wall of prose and examples.

Neeeophytee/finding-unknowns-skills

Interactively validate and triage Hacktron findings against the actual source code and (optionally) a live deployment, separate true positives from false positives, adjust severity, then either…

HacktronAI/skills

A skill your agent uses whenever working with GitHub issues in the bitrix24/b24phpsdk repository: creating new issues, reading existing ones, planning implementation from an issue, referencing an…

bitrix24/b24phpsdk

Add a new Foundry cheatcode to Kontrol (K rules, selector, Solidity test, CI registration).

runtimeverification/kontrol

Build UIs with HLive, the server-side virtual-DOM framework for Go (github.com/SamHennessy/hlive).

SamHennessy/hlive

Work that does not happen inside the request in an Arandu (Go) application -- background jobs and the worker, scheduled tasks, domain events through the outbox, listeners, notifications, mail and…

arandu-io/arandu

Audits an Azure API Management setup against the OWASP API Security Top 10 and Azure Security Benchmark, covering policies, network layout and identity.

thomast1906/github-copilot-agent-skills

Expert developer for PyCalcpad (Calcpad.Api) - the programmatic API wrapper for Calcpad.

imartincei/CalcpadCE

Enriches an existing CycloneDX BOM with occurrence, callstack, reachability, data-flow, and crypto-flow evidence using cdxgen evinse, including Go analysis via Golem and Rust analysis via Rusi, and…

cdxgen/cdxgen

A skill your agent uses when the user wants to analyze agent telemetry traces to find bugs and get fix recommendations — walks through exporting traces from a local or remote watsonx Orchestrate…

IBM/ibm-watsonx-orchestrate-adk

Reference for building with near-api-js v7 in TypeScript or JavaScript: accounts, keys, signing, contract calls, tokens, unit conversion and meta-transactions on NEAR.

internet-court/internet-court-skill

Solana token market data via Birdeye — prices, OHLCV, trades, token metadata, security checks, and trader activity

agiprolabs/claude-trading-skills

Inspect or invoke locally registered ArkCLI actions when product commands cannot cover a task.

volcengine/ark-cli

Expert guidance for using the Databricks CLI to manage Databricks workspaces, clusters, jobs, pipelines, Unity Catalog, SQL warehouses, serving endpoints, secrets, bundles, and all other Databricks…

aehrc/pathling

Debug World Chain nodes with temporary admintracingDirectives log filters and targeted log collection.

worldcoin/world-chain

A skill your agent uses when adding, modifying, debugging, or reviewing dd-trace-js serverless platform integrations that create root invocation spans for AWS Lambda, Azure Functions, Google Cloud…

DataDog/dd-trace-js

Vast.ai Python SDK — high-level API for GPU instances, volumes, serverless endpoints, and billing.

vast-ai/vast-cli

A skill your agent uses when a drissionpage-mcp task targets an iframe such as a payment widget, challenge, SSO flow, or embedded checkout.

jumodada/Drissionpage-MCP-Server

Helps build, explain and troubleshoot C# Discord apps on DisCatSharp, answering from the project's installed version and the library's documentation rather than guesses.

Aiko-IT-Systems/DisCatSharp

Send emails via SMTP (Gmail, Outlook, etc.). An agent skill from openakita/openakita.

openakita/openakita