Backend and APIs instructions files

1,519 tagged Backend and APIs, measured the same way as everything else here.

Browse within: model-context-protocol 96copilot 59api 51ai-tools 49ai-coding 25go 23fastapi 21openapi 21ai-guardrails 19nodejs 18fastmcp 17boilerplate 16cloudflare-workers 16rest-api 16

Macavity/mapeditor

Instructions file GitHub Copilot

Copilot instructions for Macavity/mapeditor, covering tilestove map editor - ai coding instructions, 🏗 architecture & patterns, backend (laravel), frontend (vue 3 + inertia) and 🛠 workflows & commands.

not rated 20 4mo ago A 815 tokens GPL-2.0

openapi/mcp-server

Instructions file GitHub Copilot

Instructions for openapi/mcp-server: This repository implements the Openapi.com MCP gateway (FastAPI + FastMCP). The server acts as a proxy that forwards a client's Bearer token to downstream Openapi services and exposes MCP tools implemented under src/openapimcpsdk/apis/.

not rated 19 28d ago A 1,021 tokens original MIT

magebitcom/magento2-mcp-module

Instructions file

Claude Code instructions for magebitcom/magento2-mcp-module, covering claude.md, what this module is, commands, enable / rebuild after xml or di changes and module-specific cli.

not rated 19 changed yesterday A 4,395 tokens original MIT

Damecek/salesforce-mcp-lib

Instructions file

Instructions for Damecek/salesforce-mcp-lib, covering salesforce-mcp-lib development guidelines, active technologies, project structure, commands and code style.

not rated 19 4mo ago A 1,062 tokens original MIT

opencrawling/opencrawling

Instructions file

Claude Code instructions for opencrawling/opencrawling, covering claude.md, project overview, build commands, full build (all maven modules) and run the embedding microservice (separate process).

not rated 19 yesterday A 1,867 tokens original Apache-2.0

zqushair/Frontapp-MCP

Instructions file

Instructions for zqushair/Frontapp-MCP, covering claude.md, development commands, building and running, build typescript and development with watch mode.

not rated 19 4mo ago A 1,730 tokens original MIT

lionelschiepers/StockQuotes.MCP

Instructions file CodexOpenCode

Instructions for lionelschiepers/StockQuotes.MCP, covering stockquotes.mcp, project overview, building and running and development conventions.

not rated 19 4mo ago A 165 tokens original MIT

zh-efimenko/tech-tutorials

Instructions file

Repository-specific instructions for writing technical courses in the tech-tutorials project, including course and lesson structure. A CLAUDE.md file gives a coding agent context and working rules.

not rated 19 changed yesterday A 1,727 tokens

catuaba CLAUDE.md

346

dayvsonlima/catuaba

Instructions file

Instructions for dayvsonlima/catuaba, covering catuaba, quick reference, architecture, key patterns and template system.

not rated 19 +1 6mo ago A 2,260 tokens original MIT

0x1b2c/twitter-bookmarks-downloader

Instructions file Gemini CLI

Gemini CLI instructions for 0x1b2c/twitter-bookmarks-downloader, covering tbd (twitter bookmarks depot) - developer guide, critical mandates, 1. architecture overview, data flow and 2. key technical decisions & "gotchas".

not rated 19 14d ago A 1,415 tokens original MIT

pluginslab/wp-agentic-kit

Instructions file CodexOpenCode

Instructions for pluginslab/wp-agentic-kit, covering example plugin, what this is, important: security is non-negotiable, commands and install.

not rated 18 2mo ago C 1,984 tokens original MIT

cloud-apim/otoroshi-llm-extension

Instructions file CodexOpenCode

Instructions for cloud-apim/otoroshi-llm-extension, covering agents.md, project overview, build commands, compile the project and run tests (tests run sequentially, not in parallel).

not rated 18 14d ago A 934 tokens original Apache-2.0

m4yk3ldev/notebooklm-mcp

Instructions file Gemini CLI

Instructions for m4yk3ldev/notebooklm-mcp, covering notebooklm mcp server - project context, project overview, key technologies, architecture and building and running.

not rated 18 1mo ago A 1,854 tokens original MIT

backenly AGENTS.md

351

backenly/backenly

Instructions file CodexOpenCode

AGENTS.md instructions for backenly/backenly, covering agents.md, what is backenly?, critical concepts (read before touching anything), 1. two completely separate user types and 2. multi-tenant schema isolation.

not rated 18 today A 4,954 tokens original Apache-2.0

silkweave CLAUDE.md

352

silkweave/silkweave

Instructions file

Instructions for silkweave/silkweave, covering claude.md, commands, mcp inspector (connects to mcp stdio example via .mcp.json), architecture and packages.

not rated 18 23d ago A 22,658 tokens original MIT

danieleteti/delphi-ai-skills

Instructions file

Instructions for danieleteti/delphi-ai-skills, covering claude.md, what this repository is, the iron rule, layout and hard constraints on a skill.md.

not rated 18 +1 1mo ago A 2,149 tokens original Apache-2.0

api-proxy CLAUDE.md

354

abra5umente/api-proxy

Instructions file

Instructions for abra5umente/api-proxy, covering claude.md, project overview, development commands, run locally and run with auto-reload during development.

not rated 17 8mo ago A 321 tokens original MIT

sdk CLAUDE.md

355

WaniWani-AI/sdk

Instructions file

Claude Code instructions for WaniWani-AI/sdk, covering waniwani sdk, public api tiers, oss (no api key required), free tier (one env var: waniwaniapikey) and internal (not part of the public api).

not rated 17 yesterday B 3,352 tokens original MIT

onceMisery/seahorse-agent

Instructions file

Project instructions for seahorse-agent, a Spring Boot platform that uses stored information to help generate answers and supports modular adapters and workflows.

not rated 17 +1 27d ago A 1,438 tokens original Apache-2.0

olkcli CLAUDE.md

357

rlrghb/olkcli

Instructions file

Instructions for rlrghb/olkcli, covering claude.md, what is this project?, quick reference, architecture and key patterns.

not rated 17 +1 6d ago A 3,383 tokens original MIT

langchain4j/langchain4j-cdi

Instructions file

Claude Code instructions for langchain4j/langchain4j-cdi, covering claude.md, project overview, build system, essential build commands and module architecture.

not rated 17 3d ago A 3,884 tokens original Apache-2.0

jujunjun110/product-starter

Instructions file

Project instructions for a Next.js web application in a pnpm workspace monorepo, where several related packages share one codebase and tools.

not rated 17 2mo ago A 1,104 tokens original MIT

mcp-server CLAUDE.md

360

Repliers-io/mcp-server

Instructions file

Claude Code instructions for Repliers-io/mcp-server, covering repliers mcp server — agent instructions, commands, architecture, environment and current focus — agent-feedback feature.

not rated 17 today A 1,225 tokens original MIT