All 305,250 crates, alphabetically

mentaMinimal Rust library for non-UI LLM and AI primitives110MIT OR Apache-2.0API bindingsDevelopment tools menta-cliInteractive CLI agent for menta51MIT OR Apache-2.0 menta_deriveProc-macro derives for menta tool definitions156MIT OR Apache-2.0 mentaiMentai command-line application21MIT mentai-agent-coreCore runtime and session engine for Mentai137MIT mentai-tuiTUI shell and terminal primitives for Mentai78MIT mental-pokerA library for writing trustless card games1,632MIT OR Apache-2.0 mentatA Rust library for scientific computing.8,319Apache-2.0Science mentedbA purpose-built database engine for AI agent memory4,643Apache-2.0Database implementations mentedb-cliCommand-line client for MenteDB: run MQL against a local data dir or a remote server.488Apache-2.0 mentedb-cognitiveCognitive memory features for MenteDB5,546Apache-2.0AlgorithmsDatabase implementations mentedb-consolidationMemory consolidation and intelligence pipeline for MenteDB5,107Apache-2.0AlgorithmsDatabase implementations mentedb-contextContext assembly engine for MenteDB5,160Apache-2.0Database implementations mentedb-coreCore data types for MenteDB7,724Apache-2.0Data structuresDatabase implementations mentedb-embeddingEmbedding model integration for MenteDB5,482Apache-2.0AlgorithmsDatabase implementations mentedb-extractionLLM-powered memory extraction engine for MenteDB4,656Apache-2.0AlgorithmsDatabase implementations mentedb-graphKnowledge graph engine for MenteDB5,166Apache-2.0Data structuresDatabase implementations mentedb-indexIndex structures for MenteDB5,156Apache-2.0AlgorithmsData structures mentedb-mcpMCP server for MenteDB, the cognition aware database for AI agent memory1,470Apache-2.0Command line utilitiesDatabase interfaces mentedb-queryMQL parser and query execution engine for MenteDB5,155Apache-2.0Database implementations mentedb-serverMenteDB server with REST API, WebSocket, auth, and observability1,699Apache-2.0Database implementationsWeb programming::HTTP server mentedb-storageStorage engine for MenteDB5,201Apache-2.0Database implementations mentioncode highlighter42MIT mentions-hashtagsExtracts @mentions and #hashtags from text (like social media descriptions). Built in safe, fast, idiomatic Rust using regex.454MITParsing toolsText processing mentisdbSemantic, hash-chained durable memory for long-running and multi-agent systems.1,142MITAsynchronousData structures mentraAn agent runtime for tool-using LLM applications1,904MITAsynchronousDevelopment tools mentra-providerShared provider core for Mentra1,311MIT menuA simple #[no_std] command line interface.92,126MIT OR Apache-2.0 menu-utilA library for Windows 11 for creating dropdown menus.549MIT menu_generatorIOT ID card generator library You use my library by this way extern crate menu_generator; use menu_generator::read_input as…4,486MIT menu_genieMulti-level terminal menu library.2,951MIT menu_glium_apimenu api for glium, specifically for building overlays in windows7,658MIT menu_rsA simple command line menu8,413Apache-2.0 menubarCross-platform native menu library.2,935MIT OR Apache-2.0AccessibilityAPI bindings menugenHierarchical menu generation library.3,0260BSDEncodingWeb programming menuinstmenuinst1,415MIT OR Apache-2.0 menvPulling in arguments from environment variables16,971MIT OR Apache-2.0 menv_proc_macroInternal proc macros for the menv crate8,073MIT OR Apache-2.0 menvaManage environment variables7,196Apache-2.0 menva-macrosMacros for menva1,714Apache-2.0 menyokiScreen{shot,cast} and perform ImageOps on the command line30,526GPL-3.0Command line utilitiesGraphics meonA declarative flat parsing engine for text formats144MIT OR Apache-2.0Parsing toolsText processing meon-jsonA fast flat parser for a JSON, built on the meon engine68MIT OR Apache-2.0Parsing toolsText processing meon-macrosProcedural macro crate for the meon parsing engine156MIT OR Apache-2.0 meon-mdA fast flat parser for a Markdown subset, built on the meon engine71MIT OR Apache-2.0Parsing toolsText processing meosRust bindings for MEOS C API4,986non-standardAlgorithmsExternal FFI bindings meos-srcstatic library build for meos-sys3,576non-standard meos-sysMEOS C API bindings9,598non-standardAlgorithmsExternal FFI bindings meowMEOW as DNA metaphor6,955non-standard meow-anytlsVendored AnyTLS protocol implementation (madeye fork) for the meow-rs proxy kernel.87MIT meow-apiREST API server (Axum) for the meow-rs proxy kernel.128MIT meow-appA high-performance, rule-based tunneling proxy kernel in Rust, compatible with mihomo (Clash.Meta).102MITCommand line utilitiesNetwork programming meow-cliPrint ASCII cats to your terminal6,777MITCommand line utilities meow-commonCore traits and types (ProxyAdapter, Rule, Metadata) for the meow-rs proxy kernel.320MIT meow-configYAML configuration parsing for the meow-rs proxy kernel.165MIT meow-dnsDNS resolver, cache, snooping (IP to domain), and FakeIP for the meow-rs proxy kernel.278MIT meow-editormicro¹ like text editor (for cats)23,018MIT meow-listenerInbound protocol listeners (Mixed/HTTP/SOCKS5/TProxy/TUN) for the meow-rs proxy kernel.135MIT meow-meow-scriptA host-neutral parser, runtime, and evaluator for Meow Meow Script18MIT meow-proxyProxy protocol implementations (Shadowsocks, Trojan, VLESS, ...) and groups for the meow-rs proxy kernel.260MIT meow-rulesRule matching engine and parser (domain, IP-CIDR, GeoIP, process, logic) for the meow-rs proxy kernel.215MIT meow-transportReusable composable stream-transport layers (TLS, WS, gRPC, H2, HTTPUpgrade) for meow-rs339MIT meow-trieDomain trie for efficient pattern matching in the meow-rs proxy kernel.316MIT meow-tunnelCore routing engine (TCP/UDP relay, rule dispatch, connection statistics) for the meow-rs proxy kernel.173MIT meow-vanityGenerate Meow Coin cryptocurrency addresses with a given prefix1,795BSD-2-Clause meow_forthA Forth interpreter1,700MIT meowdaMeowda 🐱 —— 「喵哒」 Manage multiple Python virtual environments with ease3,783MIT meowgTrivial terminal loggers with Catppuccin colour palette495EUPL-1.2 meowhashMeow hash function88,488MPL-2.0+AlgorithmsNo standard library meowjpancake-ify json3,420GPL-3.0-onlyCommand line utilities meowlogCLI tool to log the hypothetical ingestion of substances1,566MIT meowmeowmeowmeow meow meow meow meow9MIT meowmlAn experimental programming language of the ML family.1,606MIT meowpingA flexible ping utility Tool written in Rust, that is focused on being size efficient and fast.37MITCommand line utilitiesNetwork programming meowpowRust implementation of Meowpow, the Meowcoin Proof-of-Work algorithm44Apache-2.0 meowsA simple pattern for async service messaging over WebSockets4,387GPL-3.0+ meowsayA simple program that is like the classic cowsay program.1,580MIT meowsicnotes to chord names :31,664non-standard meowstore_binbufBinbuf.1,566MIT meowstore_binbuf_macrosBinbuf macros.1,830MIT meowstore_bindbBindb.1,245MIT meowtexSaddened by the feeling that Rust multitasking types are not puppy-/kittycoded enough for you? Then this crate is for you!445MIT OR Apache-2.0 meowthA library which provides abstractions for functional programming in Rust. Inspired by Scala library cats.1,533MIT OR Apache-2.0Data structuresMathematics meowtoninFully featured Rust wrapper around byondapi.2,5900BSD meowtonin-byondapi-sysbyondapi bindings used by meowtonin2,8750BSD meowtonin-implProc macros for meowtonin, a fully featured Rust wrapper around byondapi.2,8540BSD meowtonin-serdeSerializer/deserializer for BYOND types, using meowtonin.1,6180BSD mep-vmVirtual Machines (VM) Support Library1,538GPL-3.0 mepeyewmepeyew - Small But Powerful Graphics Library27,422BSD-2-Clause mephistoThe rust language implementation of Raft services.2,800Apache-2.0 mephisto-raftThe rust language implementation of Raft algorithm.2,789Apache-2.0 meplangAn EVM low-level language that gives full control over the control flow of the smart contract.3,877MIT OR Apache-2.0 meppleEnglish dictionary as a library.3,686MIT mequeuemequeue2,697Apache-2.0 merErgonomic ELF64 parser, designed for use within kernels12,129MIT/Apache-2.0 mer-iotA developer-friendly IoT test data generator CLI — send realistic sensor payloads over MQTT, HTTP, or TCP126MITCommand line utilitiesDevelopment tools::Testing meradomo-engineReusable launcher for a shared Meradomo engine: discover, attach, spawn, supervise, register, and publish. Tauri-agnostic — any…13MITNetwork programming meraidRender Mermaid diagrams in your terminal — a pure-Rust CLI and library50MITCommand line utilitiesVisualization merand48Quick random number generator used in VowpalWabbit11,672BSD-3-Clause meratalkMeratalk is a powerful VoIP communication platform.604MIT merbatA cat replacement that renders Mermaid diagrams as ASCII/Unicode art in the terminal19MIT merc_atermA thread-safe library to manipulate and store first-order terms.764BSL-1.0AlgorithmsConcurrency merc_collectionsInternal MERC crate containing various collections.413BSL-1.0 merc_dataDefines data expressions on top of terms that are compatible with the mCRL2 toolset.658BSL-1.0 merc_exploreProvides state space exploration algorithms on top of a generic linear process interface103BSL-1.0Science merc_ioInternal MERC toolset package containing various I/O related functionality.890BSL-1.0 merc_lddImplements algorithms and I/O for list decision diagrams.164BSL-1.0Data structuresScience merc_ltsImplements labelled transition systems for various I/O formats using a general LTS trait.508BSL-1.0Data structuresScience merc_macrosInternal MERC crate containing procedural macros for code generation.854BSL-1.0 merc_numberInternal MERC toolset package containing various number related utility functions.971BSL-1.0 merc_pest_consumeA framework for processing the output of a pest-generated parser913MIT OR Apache-2.0Parsing tools merc_pest_consume_macrosMacros for pest_consume983MIT OR Apache-2.0Parsing tools merc_reductionReducing and comparing labelled transition systems modulo various bisimulation equivalences285BSL-1.0AlgorithmsScience merc_refinementAlgorithms to compare labelled transition systems with respect to various refinement relations.230BSL-1.0AlgorithmsScience merc_sabreImplements various term rewrite engines based on a set automaton matching construction.166BSL-1.0AlgorithmsData structures merc_sharedmutexA read efficient readers-writer lock based on the busy-forbidden protocol.854BSL-1.0Concurrency merc_symbolicImplements various utility and I/O functionality for symbolic data structures, i.e., decision diagrams.138BSL-1.0 merc_syntaxProvides an AST and Pest grammar for the mCRL2 specification language.325BSL-1.0Science merc_unsafetyInternal MERC crate containing various utility functions that use unsafe code blocks.855BSL-1.0 merc_utilitiesInternal MERC crate containing various utility functions.1,250BSL-1.0 merc_vpgCrate for solving (variability) parity games, including I/O in the PGSolver format140BSL-1.0AlgorithmsData structures mercadolibreClient for MercadoLibre API1,592MITWeb programming mercadopago-sdk-rustA strongly-typed wrapper for MercadoPago payment gateway API.2,899MIT mercantileMercantile is a Rust library providing utility functions for working with geographical coordinates, web mercator projected…3,022non-standard mercatThe MERCAT library for confidential transactions.4,687Apache-2.0 mercatorMercator projection for WGS84 to 2d zone7,266MIT merch-engine-rust-sdkMerch Engine Rust Lib2,727MIT OR Apache-2.0 mercs2_aiMercenaries 2 reimpl — silo 11 (row 23): AI (percept->goal planner, cover, squads, pedestrians, driving). WAVE-1 scaffold.56MIT mercs2_animMercenaries 2 reimpl — silo 8 (row 20): animation runtime (controllers, IK, ragdoll, FaceFX). WAVE-1 scaffold.57MIT mercs2_audioMercenaries 2 reimpl — silo 14 (row 21): audio backend, mixer, dual-deck music FSM, banks, 3D. WAVE-1 impl.70MIT mercs2_combatMercenaries 2 reimpl — silo 10 (row 26): weapons/combat (wpn_* stats, projectile lifecycle, homing FSM, damage/explosion applier).59MIT mercs2_coreMercenaries 2 modernization — the simulation spine (World, fixed tick, ordered schedule, components). Renderer- and…125MIT mercs2_decalMercenaries 2 reimpl — Decals (row 6): decaltable loader + decal instance pool/lifetime management. Render integration is a seam…55MIT mercs2_engineMercenaries 2 modernization — native 64-bit engine (Rust/wgpu). Phase 1 skeleton.49MIT mercs2_factionMercenaries 2 reimpl — silo 13 (faction/reputation/pursuit): the combat->infraction->attitude->pursuit loop from…54MIT mercs2_formatsMercenaries 2 modernization — asset format layer: WAD/sges/UCFX/mesh/texture/terrain container parsing and decompression.256MIT mercs2_gameMercenaries 2 — the game exe: boots the engine from the player's save (profile → SaveState → world). Game-specific config lives…25MIT mercs2_jobsMercenaries 2 reimpl — Pimp job system (row 15): worker pool + CS-guarded job ring, the engine's parallel-work spine. WAVE-2…25MIT mercs2_luacMercenaries 2 Lua 5.1 bytecode compiler — emits LuaQ chunks the game's VM accepts (float lua_Number, 32-bit size_t), from any…22MIT mercs2_meshMercenaries 2 — model container → indexed triangle geometry (vertices, indices, per-material draw groups). Renderer-agnostic.54MIT mercs2_netMercenaries 2 reimpl — silo 16 (row 28): networking (Keystone-B replication, session/transport, FESL). WAVE-1 scaffold.25MIT mercs2_physicsMercenaries 2 reimpl — silo 7 (row 22): Havok character controller, rigid bodies, collision queries, MOPP/heightfield. WAVE-1…54MIT mercs2_playerMercenaries 2 reimpl — player concern (Player namespace): cash/fuel economy + player-controller + character/disguise. WAVE-1…25MIT mercs2_populationMercenaries 2 reimpl — Population / spawners (row 24): SkirmishSpawnList, living-world crowd/traffic density, dynamic-road flow.…54MIT mercs2_probeMercenaries 2 modernization — headless WAD diagnostic/export tool. Runs the carved-out diagnostics from mercs2_engine::diag as…29MIT mercs2_reassembleReassemble the decompiled Mercs2 engine from the 27k-function Ghidra corpus by joining every attribution source (code maps,…25MIT mercs2_scriptThe engine's Lua script host: VM + module system (import/inherit) + the Sys.*/engine binding mechanism. Asset-agnostic; the…55MIT mercs2_smugglerMercenaries 2 modernization — asset-injection / override patch builder: smuggles new or replacement model/texture assets into the…23MIT mercs2_uiMercenaries 2 reimpl — silo 15 (rows 27/18): GUI/HUD/Scaleform + input extensions. WAVE-1 scaffold.59MIT mercs2_vehicleMercenaries 2 reimpl — silo 25 (rows 25/19): vehicle actors + custom raycast drive model + command-ring transport + camera modes.…54MIT mercs2_waterMercenaries 2 reimpl — Water (row 7): watermap query, water zones/height, TPS swim-state FSM + buoyancy tunables. Render…54MIT mercs2_workshopMercenaries 2 modernization — native asset workshop (browse / inspect / remix) on the mercs2_engine renderer.25MIT mercurmercur - junolang package manager253non-standard mercureA client implementation of the Mercure protocol1,482MIT OR Apache-2.0API bindingsAsynchronous mercurialMercurial is a free, distributed source control management tool1,727 GPL-2.0-or-later mercurial-ammCreated with Anchor12,600MIT mercurial-signatureImplement Mercurial Signature1,130MIT/Apache-2.0Cryptography mercurial-vaultCreated with Anchor14,863MIT mercurial-vault-forkCreated with Anchor1,545MIT mercurial_stable_swap_n_pool_instructionsInstruction and stat to interact with the Mercurial stable swap program2,656WTFPL mercurio-analysisKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.11MIT mercurio-authoringKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.14MIT mercurio-codegenKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.11MIT mercurio-coreKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.9MIT mercurio-foundationPublic Rust facade for Mercurio's language-neutral semantic modeling foundation.7MITData structuresDevelopment tools mercurio-kermlKerML and SysML v2 language services, compiler, and simulation for Mercurio.0MIT mercurio-kirKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.18MIT mercurio-language-contractsKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.17MIT mercurio-language-frontendKerML and SysML v2 language services, compiler, and simulation for Mercurio.0MIT mercurio-modelKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.17MIT mercurio-query-dslKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.10MIT mercurio-requirementsKerML and SysML v2 language services, compiler, and simulation for Mercurio.0MIT mercurio-runtimeKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.14MIT mercurio-semantic-servicesKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.12MIT mercurio-sessionKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.10MIT mercurio-simulationKerML and SysML v2 language services, compiler, and simulation for Mercurio.0MIT mercurio-simulation-coreKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.9MIT mercurio-sysmlKerML and SysML v2 language services, compiler, and simulation for Mercurio.0MITDevelopment toolsParser implementations mercurio-sysml-resourcesVersioned KerML and SysML resource bundles used by Mercurio SysML.0MIT mercurio-viewsKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.8MIT mercurio-workspaceKerML-aligned semantic modeling substrate and KIR runtime for Mercurio.10MIT mercuriusExtended pulldown-cmark9,572MIT mercuryThe official Rust client for the Mercury Parser.2,043MIT/Apache-2.0API bindingsAsynchronous mercury-cliMercury CLI.14,774Apache-2.0 mercury-deriveProcedural macro for marking Rust types for PureScript code generation28,147MIT OR Apache-2.0Development toolsWeb programming mercury-rustLibrary that interacts with Mercury Bank API.1,707MIT/Apache-2.0 mercurysMercury celestial simulation crate for the MilkyWay SolarSystem workspace70MITScienceSimulation mercustRust-native interface definition for Mercury.3,969MIT mercust-msgpackRust implementation for mercury-msgpack.2,709MIT mercust-spec-readerRust implementation for loading Mercury objects from language-agnostic representations defined by Mercury.3,191MIT mercust-utilsBasic Mercury functionalities based on mercust.2,824MIT mercutioIO-less MCP server library374MIT OR Apache-2.0 mercyOwned pair of immutable strings.71CC0-1.0 merdeSerialize and deserialize with declarative macros35,973Apache-2.0 OR MITEncodingParser implementations merde_coreBase types for merde28,088Apache-2.0 OR MITEncodingParser implementations merde_jsonJSON serialization and deserialization for merde, via jiter39,857Apache-2.0 OR MITEncodingParser implementations merde_json_typesWrapper types for merde_json that implement serialization/deserialization8,436Apache-2.0 OR MITEncodingParser implementations merde_msgpackmsgpack serizliation/deserialization for merde10,975Apache-2.0 OR MITEncodingParser implementations merde_timeWrapper date-time types for merde21,951Apache-2.0 OR MITEncodingParser implementations merde_yamlYAML deserialization for merde16,671Apache-2.0 OR MITEncodingParser implementations