Middleware — find a capability, not a platform

9,918 reusable middleware libraries, SDKs, and systems indexed by what they do — dialogue, auth, inventory, networking, memory — across every engine, framework, and language. Discovery only; each links out to where the maker ships it.

AI & Agents

AI (3895) · Memory (413) · Voice (90) · Machine Learning (81) · OCR (41) · Simulation (32) · Dialogue (22) · Behavior (17) · Vision (13) · Robotics (10) · NPC (8)

Gameplay

Economy (33) · Trading (32) · Inventory (30) · Procedural Generation (12) · Leaderboards (8) · Save Systems (4) · Quest (3) · Achievements (3) · Pathfinding (3) · Crafting (1)

World & Presentation

UI (283) · Localization (78) · Audio (73) · Rendering (62) · Animation (27) · Physics (20) · Terrain (10) · Input (2) · Weather (1)

Platform & Infra

Automation (1175) · API (634) · Workflow (429) · Cloud (255) · SDK (173) · Authentication (147) · Networking (75) · Email (73) · Messaging (68) · Payments (57) · Scheduling (52) · Authorization (33) · Commerce (33) · Notifications (25)

Data

Database (345) · Monitoring (160) · Serialization (87) · Analytics (78) · Search (37) · Filesystem (32) · Compression (30) · Telemetry (29) · Logging (22) · Data Processing (13) · Storage (12)

Security

Security (370) · Encryption (79)

Dev & Build

Developer Tools (5137) · Testing (187) · Build Systems (92) · CI/CD (59)

By platform

Python (1268) · TypeScript (1175) · Rust (560) · Android (489) · JavaScript (445) · Go (438) · React (358) · Web (304) · Node.js (278) · Godot (132) · iOS (131) · Electron (124) · C# (102) · C++ (71) · Vue (56) · PHP (49) · Java (48) · Flutter (30) · Unity (24) · Angular (21) · Unreal (11) · Lua (9) · Roblox (5) · Windows (2)

Publishers

homebrew (3167) · GitHub Actions (317) · fdroid (77) · crates (66) · sindresorhus (33) · octokitbot (18) · sboudrias (17) · ruvnet (11) · google-wombot (11) · oaslananka (9) · Foyezes (9) · dinglebear-ai (9) · fezcode (9) · api-evangelist (8) · lxgicstudios (7) · microsoft1es (6) · devorein (6) · suzuki-shunsuke (6) · conorbronsdon (6) · Dicklesworthstone (6) · n1cklss (5) · woheller69 (5) · vul-os (5) · steipete (4)