Source: doc.rust-lang.org (std library reference) · crates.io database dump, 2026-07-25 (crates directory)Contact
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All 305,250 crates, alphabetically

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

mc-sgx-ioIO implementation for use inside of SGX enclaves2,331Apache-2.0Hardware supportNo standard library mc-sgx-io-untrustedUntrusted or host IO implementation for SGX enclaves1,792Apache-2.0Hardware support mc-sgx-panicPanic handler for SGX enclaves1,846Apache-2.0Hardware supportNo standard library mc-sgx-panic-sysCommon panic handling behavior for SGX enclaves3,034Apache-2.0Hardware supportNo standard library mc-sgx-sdk-toolsTools for building SGX enclaves19,191Apache-2.0Development tools::Build Utils mc-sgx-syncSynchronization primitives for SGX enclaves2,326Apache-2.0Hardware supportNo standard library mc-sgx-tcrypto-sysFFI bindings for `sgx_tcrypto`.25,054Apache-2.0External FFI bindingsHardware support mc-sgx-tcrypto-sys-typesFFI type definitions used by `sgx_tcrypto`.31,624Apache-2.0External FFI bindingsHardware support mc-sgx-trtsRust wrappers for the `sgx_capable` library.24,598Apache-2.0API bindingsHardware support mc-sgx-trts-sysFFI bindings for `sgx_trts`.27,105Apache-2.0External FFI bindingsHardware support mc-sgx-tserviceRust wrappers for the `sgx_tservice` library.24,003Apache-2.0API bindingsHardware support mc-sgx-tservice-sysFFI bindings for `sgx_tservice`.28,777Apache-2.0External FFI bindingsHardware support mc-sgx-tservice-sys-typesFFI type definitions for `sgx_tservice`.30,395Apache-2.0External FFI bindingsHardware support mc-sgx-tservice-typesRust wrapper for SGX trusted service types.24,827Apache-2.0API bindingsHardware support mc-sgx-tstdcRust wrappers around SGX synchronization primitives21,332Apache-2.0API bindingsHardware support mc-sgx-tstdc-sysFFI bindings for `sgx_tstdc`.27,768Apache-2.0External FFI bindingsHardware support mc-sgx-tstdc-sys-typesFFI types for `sgx_tstdc`.28,679Apache-2.0External FFI bindingsHardware support mc-sgx-urtsRust wrapper for `sgx_urts`.25,390Apache-2.0API bindingsHardware support mc-sgx-urts-sysFFI bindings for `sgx_urts`.28,466Apache-2.0External FFI bindingsHardware support mc-sgx-urts-sys-typesFFI types for `sgx_urts`.28,906Apache-2.0External FFI bindingsHardware support mc-sgx-utilUtilities shared by SGX libraries112,409Apache-2.0No standard library mc-skinA simple Minecraft skin fetching library supporting LittleSkin and Mojang sources.18MIT mc-snapDeclarative Minecraft server management. Pin Minecraft, loader, mods, Java, and configs in one YAML file; resolve, install, run,…182MITCommand line utilitiesGames mc-sst25Library for the Microship SST25* flash memory series7,375MIT OR Apache-2.0Embedded developmentHardware support mc-status-probeA zero-dependency Minecraft Java server status probe based on wiki.vg Server List Ping protocol207MITGame developmentNetwork programming mc-tcpmuxA TCP port multiplexer for Minecraft servers.420MIT mc-toolsTool system for magic-code AI coding agent (30 built-in tools)106MIT mc-tuiTerminal UI for magic-code AI coding agent (ratatui-based)69MIT mc-unified-bookshelfA library for reading and writing different kinds of minecraft files.15,306GPL-3.0-or-later mc-unified-endermiteGeneral purpose binary IO library2,197GPL-3.0-or-later mc-vanillaMinecraftRS - Implementation of vanilla features for Minecraft, this extends and use mc-core.2,917Apache-2.0GamesMathematics mc-varintMinecraft's VarInt and VarLong implemetation in Rust, providing minimum memory usage and maximum performance.50,944WTFPL mc02_minigrepThe minigrep example from the book.1,602MIT mc173Minecraft beta 1.7.3 base data structures and logic for running a world3,194Apache-2.0Games mc173-serverMinecraft beta 1.7.3 protocol and server implementation compatible with Notchian client2,695Apache-2.0Games mc2Provides user configured development environments using docker. Rust replacement for https://github.com/ooxi/mini-cross415non-standard mc3479Driver for the MEMSIC MC3479 16-bit 3-axis accelerometer2,720BSD-2-Clause-Patent mc64Sparse matrix scalings2,166BSD-3-Clause mc6809-coreMotorola 6809 CPU emulator core126Apache-2.0Embedded developmentEmulators mc_authA simple library for authenticating with Mojang's authentication servers.1,623MIT mc_bootstrapA library for launching Minecraft.1,548MIT mc_chatA crate aimed to provide easy-to-use Rust objects to work with Minecraft's raw JSON message format4,752MIT OR Apache-2.0 mc_downloaderA library for downloading Minecraft assets and libraries.1,510MIT mc_headless_authHeadless Minecraft Server Authentication41MITAuthentication mc_ioMinecraft I/O layer12,956MIT mc_map2pngThis Rust application transforms Minecraft map data from NBT format into a visual PNG image. Additionally, a WebAssembly module…1,498MITGraphicsWebAssembly mc_protocolRust implementation of Minecraft Java Edition protocol primitives: serialization, packet framing, encryption, and compression290MITEncodingGame development mc_protocol_deriveProc-macro derive crate for mc_protocol — Minecraft Java Edition protocol serialization298MIT mc_schemA library to read, create, modify and write various Minecraft schematic files7,742GPL-3.0-or-laterGame development mc_serviceA Minecraft service that can interact with the Mojang API.1,524MIT mc_simA simulator for minecraft speed runs, as that pertains to the Dream cheating scandal.1,692WTFPL OR MIT OR Apache-2.0Simulation mcaReader/Writer for Minecraft Region Files (.mca)9,773MITParsing tools mca-cuboidsmerge blocks from mca files2,781Apache-2.0/MIT mca-parserA library for parsing Minecraft's region files12,932Apache-2.0 mca-rsRust port of the synApps mca record (multichannel analyzer)105non-standard mcaiCLI tool for the Media Cloud AI Platform8,124MIT mcai-backendCLI tool for the Media Cloud AI Backend1,596MIT mcai-benchmarkLibrary to benchmark MCAI workers.3,515MIT mcai-clientProvides convenient access to the Media Cloud AI Backend11,549MIT mcai-dockerLibrary to start and stop MCAI workers images with Docker.8,380MIT mcai-graphGraph definition for Media Cloud AI Workflows representation7,386MIT mcai-graph-rendererGraph renderer for Media Cloud AI Workflows representation5,827MIT mcai-licenseCrate for MCAI workers license definition.12,580MIT mcai-onnxruntimeWrapper around Microsoft's ONNX Runtime3,066MIT OR Apache-2.0Science mcai-onnxruntime-sysUnsafe wrapper around Microsoft's ONNX Runtime5,091MIT OR Apache-2.0Science mcai-typesComme types definition for Media Cloud AI Rust projects5,682MIT mcai-workersA command line tool to manage workers for the Media-Cloud-AI project5,954MIT mcai-workflowYew components of Workflows and Workers for Media Cloud AI project8,350MIT mcai-workflow-editorEditor of workflow for Media Cloud AI project4,000MIT mcai_buildA small crate exporting information from Cargo.toml at compile time.17,201MIT mcai_ftpFTP client for Rust4,598Apache-2.0/MITNetwork programming mcai_modelsModels for Media Cloud AI project33,812MIT mcai_worker_sdkAMQP Worker to listen and provide trait to process message93,472MIT mcanUnofficial MCAN Hardware Abstraction Layer26,412MIT OR Apache-2.0Embedded developmentHardware support mcan-coreUnofficial MCAN Hardware Abstraction Layer (integration layer)44,102MIT OR Apache-2.0Embedded developmentHardware support mcanbusHigh-performance, low-overhead SocketCAN bindings for Linux. Pure libc, no async runtime, optional fan-out reader for zero-loss…46MITHardware supportNetwork programming mcandumpEnhanced candump for SocketCAN — rich colors, interactive scrollback/search, auto theme detection. Optional CANcorder logger.161MITCommand line utilitiesNetwork programming mcangenHigh-performance CAN bus frame generator for testing and benchmarking218MITCommand line utilitiesNetwork programming mcapA library for reading and writing MCAP files8,425,514MITCompressionScience::Robotics mcap-rsA library for reading and writing Foxglove MCAP files5,172Apache-2.0CompressionScience::Robotics mcap2arrowMCAP to Arrow conversion library with protobuf and ROS 2 decoders.302Apache-2.0 mcap2arrow-arrowArrow conversion utilities built on top of mcap2arrow-core schemas and values.372Apache-2.0 mcap2arrow-coreCore schema and value types for decoding MCAP payloads into structured data.695Apache-2.0 mcap2arrow-protobufProtobuf decoder for mcap2arrow using FileDescriptorSet schemas.376Apache-2.0 mcap2arrow-ros2-commonShared ROS 2 type system and CDR decoding helpers for mcap2arrow.508Apache-2.0 mcap2arrow-ros2idlROS 2 IDL schema decoder for mcap2arrow CDR payloads.377Apache-2.0 mcap2arrow-ros2msgROS 2 .msg schema decoder for mcap2arrow CDR payloads.374Apache-2.0 mcap2vidExtract video from MCAP recordings with embedded ROS2 timestamps188MITCommand line utilitiesMultimedia::Video mcapdecodeMCAP decoding library with optional Arrow integration, protobuf, and ROS 2 decoders.212Apache-2.0 mcapdecode-arrowArrow conversion utilities built on top of mcapdecode-core schemas and values.171Apache-2.0 mcapdecode-coreCore schema and value types for decoding MCAP payloads into structured data.1,756Apache-2.0 mcapdecode-protobufProtobuf decoder for mcapdecode using FileDescriptorSet schemas.227Apache-2.0 mcapdecode-ros2-commonShared ROS 2 type system and CDR decoding helpers for mcapdecode.1,680Apache-2.0 mcapdecode-ros2idlROS 2 IDL schema decoder for mcapdecode CDR payloads.248Apache-2.0 mcapdecode-ros2msgROS 2 .msg schema decoder for mcapdecode CDR payloads.1,622Apache-2.0 mcaptcha-api-rsHTTP Library to interact with mCaptcha API1,489MIT OR Apache-2.0 mcaptcha-cliCLI tool to solve mCaptcha1,542AGPL-3.0 mcaptcha_pow_sha256SHA256 PoW on any serializable datatype used in mCaptcha10,262MIT OR Apache-2.0AlgorithmsCryptography::Cryptocurrencies mcaptuiTerminal UI for browsing MCAP topics and decoded messages via mcapdecode.88Apache-2.0 mcasa minimalist CLI to fetch and save minecraft texture packs by version.1,441MITCommand line utilities mcatTerminal image, video, and Markdown viewer19,094MITCommand line utilitiesMultimedia mcatoolA simple command line tool that allows you to easily work with .mca (Minecraft region) files2,731MIT mcavMinecraft avatar in the terminal7,357MIT mcb_acct_genAn OpenAPI generated Rust client for Metropolitan Commercial Bank accounts API2,708MIT OR Apache-2.0 mcb_acct_trn_genAn OpenAPI generated Rust client for Metropolitan Commercial Bank transaction history API1,515MIT OR Apache-2.0 mcb_auth_genAn OpenAPI generated Rust client for Metropolitan Commercial Bank authentication API1,525MIT OR Apache-2.0 mcb_transfer_genAn OpenAPI generated Rust client for Metropolitan Commercial Bank book transfer API1,530MIT OR Apache-2.0 mcbannerA simple library to generate Minecraft banner images.2,864MIT mcbe-lan-advertizerListens for Minecraft Bedrock LAN Ping packets and responds with a Pong packet.2,878MITCommand line utilitiesGames mccA microkernel1,946MPL-2.0 mccaptionMacCaption ( MCC ) parser1,846WTFPLParsing tools mccfrGame-agnostic Monte Carlo Counterfactual Regret Minimization framework28MITAlgorithmsGame development mccgaImplements the machine-coded compact genetic algorithm (MCCGA)7,420MIT mccolors-rustA Rust library for working with Minecraft color codes and ANSI colors.5,081MIT mccsVESA Monitor Control Command Set86,531MITHardware support mccs-capsMCCS capability string parser60,908MITHardware supportParser implementations mccs-dbMCCS specification VCP database63,219MITHardware support mcdSimple mc downloader7,000non-standard mcd-cliCommand line interface for Markdown CSV Document packages.55Apache-2.0 mcd-coreCore parser, validator, and exporter for Markdown CSV Document packages.176Apache-2.0 mcd-mcpModel Context Protocol server for Markdown CSV Document packages.33Apache-2.0 mcd-queryRead-only SQL query engine for Markdown CSV Document package tables.79Apache-2.0 mcd-renderHTML renderer for Markdown CSV Document packages.106Apache-2.0 mcd-wasmRaw WebAssembly bindings for Markdown CSV Document packages.48Apache-2.0 mcdata(De)serializable NBT structures for Minecraft10,777GPL-3.0-only mcdata-rsLibrary to access Minecraft data provided by PrismarineJS/minecraft-data1,863MITGamesParser implementations mcdlMinecraft server executable downloader2,844ISC mcdmA Rust library to assist with solving Multiple-Criteria Decision Making (MCDM) problems.9,644MITMathematicsScience mcdp-format2-rsA Rust library for loading and saving datasets in the MCDP V2 format.797Apache-2.0 OR MIT mcduA modern disk usage analyzer with a terminal UI, inspired by ncdu274MITCommand line utilitiesFilesystem mceMarkdown Code Extractor: Collect code blocks from your README.md (or another Markdown file). Optional filtering. Add optional…76BSD-2-Clause OR Apache-2.0 OR MITDevelopment toolsDevelopment tools::Testing mce-libMarkdown Code Extractor library (part of mce): Collect code blocks from your README.md (or another Markdown file). Optional…225BSD-2-Clause OR Apache-2.0 OR MITDevelopment toolsDevelopment tools::Testing mce-procMarkdown Code Extractor procedural macros (part of mce): Collect code blocks from your README.md (or another Markdown file).…166BSD-2-Clause OR Apache-2.0 OR MITDevelopment toolsDevelopment tools::Testing mceliece348864Thin wrapper for classic-mceliece-rust with mceliece348864 parameter set95Apache-2.0Cryptography mcfPure Rust implementation of the Modular Crypt Format (MCF) which is used to store password hashes in the form `${id}$...`72,361Apache-2.0 OR MITAuthenticationCryptography mcf-config-demo-libA Proof of Concept2,016MIT mcf-config-demo-settingsA Proof of Concept2,974MIT mcfetchLightweight fetching program with color options1,150non-standardCommand line utilities mcfgMachine configurator, a cross-platform meta-package manager.2,900MIT mcflaiHistory search inspired by McFly. Hobby project.1,460MITCommand line utilities mcflyMcFly replaces your default ctrl-r shell history search with an intelligent search engine that takes into account your working…51,266MITCommand line utilities mcfnAn mcfunction preprocessor1,200MITCommand line utilitiesCompilers mcfunction-debug-adapterA debugger for Minecraft's *.mcfunction files that does not require any Minecraft mods2,809GPL-3.0-or-laterDevelopment tools::Debugging mcfunction-debuggerA debugger for Minecraft's *.mcfunction files that does not require any Minecraft mods8,134GPL-3.0-or-laterDevelopment tools::Debugging mcg59MCG59 random number generator3,608Unlicense OR CC0-1.0AlgorithmsMathematics mcgenGenerate a Minecraft server in seconds!13,378MITCommand line utilities mcgetA Minecraft server status query library and CLI tool (Java SLP + Bedrock RakNet)21MIT OR Apache-2.0Command line utilitiesNetwork programming mcgooeyA GUI system that works exclusively with percentages and widget trees6,884GPL-3.0 mcgrepA clone of the popular grep program found in unix-like systenms.1,694MIT mchainA procedural macro to facilitate method chaining by automatically returning the self receiver.28MIT mchdirMake and enter a directory in one command.4,092MITCommand line utilitiesFilesystem mchepHighly parallelizable Monte Carlo integration routine with SIMD and GPU acceleration220GPL-3.0-or-laterAlgorithmsScience mchep_capiC language interface to MCHEP38GPL-3.0-or-laterAlgorithmsScience mchep_pyapiHighly parallelizable Monte Carlo integration routine with SIMD and GPU acceleration39GPL-3.0-or-laterAlgorithmsScience mchprsA multithreaded minecraft server built for redstone.5,917MIT mchrLenient implementations of encodings. Zero allocations, zero dependencies!14,121CC-BY-4.0 mciMultiMedia Card Interface (SD, MMC, SDIO) implementation using MCI2,883MIT OR Apache-2.0Embedded developmentHardware support mci-atsamd51ATSAMD51 specific implementation for the MCI interface1,719MIT OR Apache-2.0Embedded developmentHardware support mcinterfaceRust bindings for wasmcraft2 API, allowing you to run Rust code in vanilla Minecraft5,484MITAPI bindingsNo standard library::No dynamic allocation mciominecraft server list ping library9,110MIT mcircuitA library of tools for working with arithmetic circuits on generic fields17,184AGPL-3.0Cryptography mckUtility crate for the formal verification tool machine-check23,145MIT OR Apache-2.0 mckernant1-toolsMy random tools11,511MIT mclRust FFI bindings for the MCL pairing-based cryptography.10,550MITAPI bindingsCryptography mcl-rsThis system crate provides high-level rust language bindings to the Minos Compute Library (MCL)9,632non-standard mcl_deriveRust FFI bindings for the MCL pairing-based cryptography.6,650MITAPI bindingsCryptography mcl_rusta wrapper class/function of a pairing library; https://github.com/herumi/mcl9,525BSD-3-Clause OR MIT OR Apache-2.0 mcl_schedThis crate provides and installable wrapper for the MCL (Minos Compute Library) Scheduler 'mcl_sched'5,029non-standard mcliAnother mystery is born.1,477MIT mclibUtils and helpers for Minecraft protocol1,716Apache-2.0Game development mclib-macrosProc-macro for mclib1,990Apache-2.0 mclientmacro based http client6,809MITWeb programming::HTTP client mclient_macromacro based http client4,998MITWeb programming::HTTP client mclnAn instance managment, creation, and launcher library for Minecraft.1,508GPL-3.0 mclockwork-utilsTools for building blocks on Solana1,526AGPL-3.0-or-later mclrrun mc in rust31,841Apache-2.0 mcmmcm = Markdown Contents Manager5,297MIT mcm_api_wrapperA wrapper for MC-Market's Ultimate REST API.2,449MITAPI bindingsAsynchronous mcmanMinecraft Server Console with autocomplete51MIT OR Apache-2.0 mcmcA Rust library implementing various MCMC diagnostics and utilities, such as Gelman Rubin potential scale reduction factor (R…4,456MIT mcmc-rsMinimal rust client for memcached6,228MITAsynchronousCaching mcmeta-parserLibrary for adding a struct to parse minecraft java edition resource pack pack.mcmeta file2,548MIT mcmfThis crate is for solving instances of the minimum cost maximum flow problem. It uses the network simplex algorithm from the…34,134MITAlgorithms mcmodDeclarative Minecraft mod manager105Apache-2.0 mcmodbuildFormat for describing how mods should be built and automatically building them from a file.417MIT mcmodsmgrManage Minecraft mods registered at curseforge.com5,090MIT mcmpA small buffer thread safe with multiple producer and multiple consumer allowed4,317MITAlgorithmsConcurrency mcnbtRead and write NBT5,940MIT mcoRust Coroutine Library like go23,262MIT/Apache-2.0Concurrency mco-genStackfull Generator Library in Rust6,618MIT/Apache-2.0AlgorithmsData structures mco-httpA modern HTTP library.22,810MIT/Apache-2.0 mco-http-rustlsRustls+hyper integration for pure rust HTTPS7,008Apache-2.0/ISC/MIT mco-redisRust Redis Client for mco Coroutine2,875MIT/Apache-2.0 mco-redis-rsRedis driver for Rust.2,798BSD-3-Clause mco-rpcRPC framework for Rust based on mco.10,884MIT mcoffin-option-extOption and Result extensions for dealing with default values and tuples3,601MIT mcoffin-timeSimple time extension utilities1,662MIT mcoffin-tuple-extSimple option extension trait for dealing with tuples1,667MIT mcomMaulingMonkey's COM wrappers11,950Apache-2.0 OR MITAPI bindingsOperating systems::Windows APIs mconConfig Minecraft server.properties file faster!646GPL-3.0