All 305,250 crates, alphabetically

cerberustFast Rust guardrails for LLM input/output — composable scanners (PII, secrets, prompt-injection) and streaming middleware.494MIT OR Apache-2.0Text processing cerbosRust SDK for working with Cerbos: an open core, language-agnostic, scalable authorization solution20,762Apache-2.0API bindings cercisTemplate engine for HTML in Rust26,254MIT cercis-componentcomponent macro for cercis24,387MIT cercis-htmlHTML generator tool for cercis26,737MIT cercis-rsxrsx macro for cercis24,295MIT cerditoRust encoding and decoding framework3,980LGPL-3.0-or-laterEncoding cerdito-deriveDerive macros for Rust encoding and decoding framework6,300LGPL-3.0-or-laterEncoding cerealA simple data serialisation library17,516MIT cereal_libDoes the cereal box problem in either single or multi-threaded mode4,677MITMathematics cereal_macrosSyntax extension for the cereal library17,542MIT cerebralA package for composable algorithms for self-organizing neural networks for research purposes.1,569MIT OR Apache-2.0 cerebrasA Rust library for the Cerebras API.1,160MIT/Apache-2.0 cerebras-rsHigh-performance Rust SDK for Cerebras Inference API - Low-latency AI model inference powered by Cerebras Wafer-Scale Engines990MITAPI bindingsAsynchronous cerebras-sdkA Rust SDK for the Cerebras Inference API517MITAPI bindings cerebroA blazing-fast AI memory layer that enables teams of specialized agents to collaborate through a shared cognitive architecture.313MITDatabase interfacesScience cerebrumdatabase for all the universe2,974MIT cerebrustCerebrust is a simple, easy-to-use library for working with NeuroSky devices under Rust.2,625MITAsynchronousHardware support cerememory-adapter-claudeCerememory LLM adapter for claude103MIT cerememory-adapter-commonShared utilities for Cerememory LLM adapters194MIT cerememory-adapter-geminiCerememory LLM adapter for gemini106MIT cerememory-adapter-openaiCerememory LLM adapter for openai104MIT cerememory-archiveCMA (Cerememory Archive) export/import based on SQLite373MIT cerememory-associationSpreading activation engine for cross-modal memory association371MIT cerememory-cliCommand-line interface for Cerememory38MIT cerememory-configConfiguration management for Cerememory (TOML + env)103MIT cerememory-coreCore types, traits, and CMP protocol definitions for Cerememory1,017MIT cerememory-decayMemory decay engine - forgetting curves and noise accumulation369MIT cerememory-engineOrchestrator that assembles all Cerememory stores and engines319MIT cerememory-evolutionCerememory evolution engine372MIT cerememory-indexCerememory index engine371MIT cerememory-store-commonShared utilities for Cerememory redb-backed stores434MIT cerememory-store-emotionalCerememory emotional store implementation370MIT cerememory-store-episodicCerememory episodic store implementation371MIT cerememory-store-proceduralCerememory procedural store implementation370MIT cerememory-store-rawCerememory raw journal store implementation272MIT cerememory-store-semanticCerememory semantic store implementation371MIT cerememory-store-workingCerememory working store implementation369MIT cerememory-transport-grpcgRPC transport binding for CMP103MIT cerememory-transport-httpHTTP/REST transport binding for CMP104MIT cerememory-transport-mcpMCP (Model Context Protocol) transport binding for CMP66MIT ceresCeres1,877GPL-3.0-only ceres-browserRun ink! contract in browser!1,756Apache-2.0 ceres-cliRun ink! contract in command line!3,078MIT ceres-clientHTTP clients for Ceres portal harvesters and embedding providers437Apache-2.0Web programming::HTTP client ceres-coreCore types, harvesting logic, and services for Ceres674Apache-2.0Data structures ceres-dbDatabase repository layer for Ceres with pgvector support433Apache-2.0Database interfaces ceres-derivederive macros for ceres6,304MIT ceres-dspA modular digital signal processing framework for Rust1,970MIT OR Apache-2.0Multimedia::AudioScience ceres-executorwasm executor of ceres6,939MIT ceres-macrosProcedural macros for the ceres-dsp framework1,216MIT OR Apache-2.0Development tools::Procedural macro helpers ceres-mpqA pure-rust implementation of a MoPaQ archive reader and writer19,795MITEncodingParsing tools ceres-riceres runtime interfaces4,418MIT ceres-runtimeRuntime ink! contract anywhere!4,426MIT ceres-sandboxsandbox of ceres6,365MIT ceres-sealceres runtime interfaces5,752MIT ceres-searchCommand-line interface for harvesting, embedding, and searching with Ceres184Apache-2.0Command line utilities ceres-serverREST API server for Ceres harvesting, embedding, and search workflows155Apache-2.0 ceres-solverSafe Rust bindings for the Ceres Solver66,382MIT OR Apache-2.0 ceres-solver-srcRust distribution of Ceres Solver built as a minimal static library45,086MIT OR Apache-2.0 ceres-solver-sysUnsafe Rust bindings for the Ceres Solver54,113MIT OR Apache-2.0 ceres-stdstd bound for ceres8,100MIT ceres-supportceres supports6,281MIT ceresdb-clientRust implementation of CeresDB client.25,077Apache-2.0 ceresdbprotoProtobuf specs for CeresDB54,753Apache-2.0 ceresforgeA web platform for creating, learning, and testing software842MPL-2.0 cerfA shell.56Apache-2.0Command line utilities ceriumA lighter way to list files and directories622MIT cerkCERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.20,097Apache-2.0 cerk_config_loader_fileThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.7,995Apache-2.0 cerk_loader_fileThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.9,335Apache-2.0 cerk_port_amqpThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.14,816Apache-2.0 cerk_port_dummiesThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.14,948Apache-2.0 cerk_port_health_check_httpThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.9,609Apache-2.0 cerk_port_mqttThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.9,669Apache-2.0 cerk_port_mqtt_mosquittoThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.8,034Apache-2.0 cerk_port_unix_socketThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.9,757Apache-2.0 cerk_router_broadcastThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.7,199Apache-2.0 cerk_router_rule_basedThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.9,314Apache-2.0 cerk_runtime_threadingThis is a package for CERK. CERK is an open source CloudEvents Router written in Rust with a MicroKernel architecture.12,593Apache-2.0 cermC-inspired error reporting macros4,1190BSDCommand-line interface cermicPrint .png images in your terminal as ascii art!1,569GPL-3.0-or-later cernanA telemetry and logging aggregation server.27,863MIT cernieraA ZIP archive encoder that never copies your data2,752MIT OR Apache-2.0CompressionEncoding cerptonA 'double' Caesar Cypher.3,453MIT cerrper_grepA fun game where you guess what number the computer has chosen.619MIT OR Apache-2.0 cerseiCersei: A modular Rust SDK for building coding agents303MITCommand line utilitiesDevelopment tools cersei-agentAgent builder, agentic loop, streaming, and reporters for the Cersei SDK438MIT cersei-agentlangAgentTemplate — a small functional DSL executed on top of the Cersei runtime93MIT cersei-agentrlAgentRL — self-evolving orchestration (ExecutionGraph, PlannerAgent, dynamic tool registry) for Cersei78MIT cersei-compressionStructural and command-aware compression for tool outputs in the Cersei SDK. Ports rtk (Rust Token Killer) techniques.478MIT cersei-embeddingsProvider-agnostic text embeddings with a pluggable vector index for the Cersei SDK537MIT cersei-hooksHook/middleware system for the Cersei SDK476MIT cersei-lspLSP client for the Cersei coding agent SDK516MIT cersei-mcpMCP (Model Context Protocol) client for the Cersei SDK513MIT cersei-memoryMemory trait and backends for the Cersei SDK480MIT cersei-providerProvider trait and built-in LLM providers for the Cersei SDK423MIT cersei-skillsagentskills.io-compatible skill registry for the Cersei SDK72MIT cersei-tbenchA purpose-built Terminal-Bench coding agent on the Cersei SDK + AgentRL53MIT cersei-toolsTool trait, built-in tools, and permission system for the Cersei SDK484MIT cersei-tools-deriveDerive macro for the Cersei Tool trait332MIT cersei-typesProvider-agnostic types for the Cersei coding agent SDK757MIT cersei-vmsSandbox & VM isolation for the Cersei coding-agent SDK393MITDevelopment tools cersei-workflowsCersei workflows: a serializable, UI-buildable workflow engine for the Cersei SDK69MITCommand line utilitiesDevelopment tools cersei_rscersei_rs16MulanPSL-2.0 certUncertainty propagation and manipulation7,483MIT cert-dumpHigh-performance X.509 certificate scanner and extractor for binary files839MITCommand line utilitiesCryptography cert-genGenerate a self-signed certificate using a ca for use with mtls1,573MIT OR Apache-2.0 cert-helperA helper library for managing certificates using OpenSSL, including support for generating CSRs and CRLs.9,011MITCryptography cert-managerCert manager in Rust54,479Apache-2.0 cert-manager-crdsCRDs for the cert-manager deployment1,709MITAPI bindingsConfiguration cert-storeCLI-based certificate store. Inspired by Password Store.39MITCommand line utilitiesFilesystem cert-x-genAdvanced Multi-Language Security Scanning Engine45Apache-2.0Command line utilitiesNetwork programming cert_by_hostDynamic SSL certificate loading from Kvrocks with auto-expiration / 基于 Kvrocks 的动态 SSL 证书加载与自动过期管理589MulanPSL-2.0AsynchronousCaching certainCertificate transparency log streamer.6,645MIT certain-certificateHigh level certificate wrapper.4,591MIT certain-mapA typed map which can make sure item exist13,650MIT/Apache-2.0Network programmingRust patterns certain-map-macrosA typed map which can make sure item exist13,080MIT/Apache-2.0Network programmingRust patterns certainlyThe easiest way to create self-signed certificates. Ever.16,869Artistic-2.0Command line utilitiesDevelopment tools certainty?1,773MITCommand line utilities certbotA library that calls out to `certbot` to get a TLS certificate.3,588MIT OR Apache-2.0 OR CC0-1.0 certbot-dns01-hookHook for certbot to serve the DNS01 challenge secret TXT record83MIT certboyyet-another-cert-manager224MIT certcryptReserved for CERTCRYPT — see https://certcrypt.com15non-standard certcrypt-cliReserved for CERTCRYPT — see https://certcrypt.com15non-standard certcrypt-nodeReserved for CERTCRYPT — see https://certcrypt.com15non-standard certcrypt-rsReserved for CERTCRYPT — see https://certcrypt.com15non-standard certcrypt-sdkReserved for CERTCRYPT — see https://certcrypt.com15non-standard certcrypt-verifier-toolkitReserved for CERTCRYPT — see https://certcrypt.com15non-standard certeefA small certificate manager26,902MIT certezaDEPRECATED: Use aprender-verify instead. Re-exports aprender-verify for backward compatibility.638MIT certgenpkcs12 self signed cert tool5,550MIT OR Apache-2.0 certgenutilgenerating self-signed certificates , creating server certificates signed by a Certificate Authority (CA)2,298MIT certifiablyCert management for Ordinary7,949AGPL-3.0-only certificate_authoritycertificate authority for kyber encryption1,541non-standard certificate_managerA library for managing and spoofing X.509 certificates2,754Apache-2.0 certified-varsCertified variable friendly data structures for the Internet Computer.14,025GPL-3.0Data structures certifyGenerate client cert with CA cert32,721MITDevelopment tools certinfoExperimental CLI tool for retrieving TLS certificate information for a TCP connection1,547MIT certitudeCertificate validation logic for OS X and Windows.8,494MIT certkitA pure Rust library for X.509 certificate creation, parsing, and management, supporting RSA, ECDSA, and Ed25519 keys, with no…1,279MIT OR Apache-2.0AuthenticationCryptography certlogviewAnalyse contents of the Microsoft AD CS Log file844GPL-3.0Command line utilities certmThis is a tui for managing x509 certificate using openssl and ratatui.156GPL-3.0-onlyConfiguration certoA Small SSL Certificate Watchdog5,279MITCommand line utilities certonAutomatic HTTPS/TLS certificate management via the ACME protocol11,168Apache-2.0CryptographyNetwork programming certradar-cliCertificate transparency and SSL/TLS security analysis CLI tool69MIT certran-logsPrimitives and parsers for Certificate Transparency logs540MIT OR Apache-2.0 certreplaceCLI tool for replacing x509 certificates and their private keys.7,011GPL-3.0-or-laterCommand line utilitiesConfiguration certsCLI tool to debug server's SSL/TLS Certificates2,753MITWeb programming certsdCertsD - automated, asynchronous LE certificate issuer.11,312MITAsynchronous certstreamrsA library for streaming Certificate Transparency Log events from the certstream service3,805MIT certtoolpfCommand-line tool for creating e3pf certificates1,552GPL-3.0-or-later certums(INDEV) Yet another fixed-point number system1,285non-standard ceruleanA collection of 2,500+ beautiful color palettes33non-standard cerulion_cliCerulion command-line interface: create workspaces, build nodes, run graphs, and inspect topics19AGPL-3.0-onlyCommand line utilitiesScience::Robotics cerulion_cli_engineCommand engine for the Cerulion CLI: workspace, node, graph, topic, and schema command logic38AGPL-3.0-onlyDevelopment toolsScience::Robotics cerulion_cli_tuiInteractive terminal dashboard (TUI) for monitoring Cerulion graphs, nodes, and topics29AGPL-3.0-onlyCommand line utilitiesScience::Robotics cerulion_coreCore runtime for Cerulion: zero-copy transport, wire format, codegen, scheduler, and graph execution53AGPL-3.0-onlyConcurrencyNetwork programming cerulion_macrosProcedural macros for Cerulion node type definition (#[cerulion_node])63AGPL-3.0-onlyDevelopment tools::Procedural macro helpersScience::Robotics cervineA slightly more flexible Cow; roughly to T: Borrow<R> as alloc::borrow::Cow is to B: ToOwned39,688MIT OR Apache-2.0Data structures cervisiagtk-rs based application for managing avh beer supply1,985MIT cervoHigh level APIs for RL in games.18,478MIT OR Apache-2.0Science cervo-assetA unified asset type for Cervo using ONNX or NNEF models.60,795MIT OR Apache-2.0Science cervo-cliHigh level APIs for RL in games.8,578MIT OR Apache-2.0Science cervo-coreHigh level APIs for RL in games.62,900MIT OR Apache-2.0Science cervo-nnefExtends cervo with nnef support from tract-nnef.61,557MIT OR Apache-2.0Science cervo-onnxExtends cervo with ONNX support from tract-onnx.61,807MIT OR Apache-2.0Science cervo-runtimeMulti-model multi-agent RL runtime for games.55,660MIT OR Apache-2.0Science cervusReserved for the Cervus subsystem to reach v0.5.023,280GPL-2.0 cervus_bridgeBridge to C for the Cervus Engine2,036LGPL-3.0 CESE4015_Concurrency_RJN_JVLThis progrmam is a concurrent version of grep. It uses1,724MIT OR Apache-2.0 cesiumA basic text editor written in Rust6,859GPL-3.0-or-later cesium-allocatorAllocator pool for managing sets of allocators2,780GPL-3.0-only cesium-libmimalloc-sysFFI wrapper for Microsoft's mimalloc allocator2,153GPL-3.0-only cesium-oauthA simple crate for oauth authentication with fediverse servers2,792MIT cesiumdbBlazing fast, persistent key-value store for Rust66GPL-3.0 cesiumtiles3D Tiles 1.1 - JSON model185MIT cesrImplementation of Composable Event Streaming Representation (CESR)1,302EUPL-1.2 cesr-rsCESR + KERI primitives for Rust as a single feature-gated, no_std-capable crate378MIT OR Apache-2.0CryptographyEncoding cesr-streamCESR stream framing: counters, groups, cold-start detection, and text/binary stream parsing. Under active development.87MIT OR Apache-2.0CryptographyEncoding cesrideCryptographic primitives for use with Composable Event Streaming Representation (CESR)21,415Apache-2.0 cesroxImplementation of Composable Event Streaming Representation (CESR)26,054EUPL-1.2 cessA CSS component library based on YEW1,807MIT cess-fr32Filecoin proofs Fr/32-byte conversion tooling2,160MIT OR Apache-2.0 cess-hashersHashers used in CESS and their abstractions.2,133MIT OR Apache-2.0 cess-proofsThe CESS specific aspects of storage-proofs, including a C based FFI, to generate and verify proofs.4,451MIT OR Apache-2.0 cess-proving-system-apiAPI to interact with the proofs system in CESS4,250MIT OR Apache-2.0 cess-sha2rawSHA-2 hash function2,083MIT OR Apache-2.0CryptographyNo standard library cess-sp-coreCESS Storage Proofs - Core parts for proofs of storage4,706MIT OR Apache-2.0 cess-sp-porepCESS Storage Proofs - Proofs of replication4,522MIT OR Apache-2.0 cess-sp-postCESS Storage Proofs - Proofs of Space Time4,515MIT OR Apache-2.0 cestsibonA tiny game engine that I create for learning1,529BSD-3-Clause cestyA testing framework for C code37MITDevelopment tools::FFIDevelopment tools::Testing cesty-buildBuild-script helpers for compiling C test sources used with cesty39MITDevelopment tools::FFIDevelopment tools::Testing cesty-macroProc macros for cesty71MIT cesu8Convert to and from CESU-8 encoding (similar to UTF-8)104,541,595Apache-2.0/MIT cesu8-strCESU-8 and Java CESU-8 string validation and manipulation.7,667MITText processing cesu8strConvert to and from CESU-8 or Modified UTF-8 encodings, only when necessary.5,548Apache-2.0/MITCommand line utilitiesDatabase interfaces cetanaYet Another Neural Network Library1,268Apache-2.0Science cetaneDjango-inspired database migrations for Diesel645BSD-2-Clause