CATEGORY
Asynchronous 9,790 crates
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.
elicit_reqwestMCP tool transport for reqwest — newtype wrappers, plugin registry, and contract-verified HTTP workflows243Apache-2.0 OR MIT
tabularium-sdkAsync Rust client for the Tabularium plugin registry HTTP API243Apache-2.0
atomr-agents-channel-harnessChannel orchestrator: attaches provider transports, supervises their lifecycle, routes inbound messages to bound Callable…242Apache-2.0
wtx-apisA set of API collections based on the wtx framework242Apache-2.0
atomr-agents-coding-cli-vendor-codexOpenAI Codex CLI adapter for the coding-cli harness: `codex exec` headless invocation + AGENTS.md projection.242Apache-2.0
entelix-graphentelix control-flow contract — StateGraph<S>, Reducer, conditional/Send edges, subgraph, Checkpointer trait, interrupt API242MIT
praxis-graphReact agent orchestrator for building AI agent workflows with LLM and tool execution241MIT
tower-resilience-routerWeighted traffic routing for Tower services - canary deployments and progressive rollout241MIT OR Apache-2.0
lunaris-extractLLM-backed entity, relation, and fact extractor for Lunaris241Apache-2.0
atomr-agents-deep-research-coreUniform input/output contract for deep-research harnesses: request, result, citation, plan, telemetry types.241Apache-2.0
talos-api-rsA typed, async, idiomatic Rust client for the Talos Linux gRPC API241MIT OR Apache-2.0
hap-transportHomeKit Accessory Protocol IP transport: mDNS discovery, HAP HTTP/1.1, and the ChaCha20-Poly1305 record layer.241Apache-2.0
reasonkit-webHigh-performance MCP server for browser automation, web capture, and content extraction. Rust-powered CDP client for AI agents.240Apache-2.0
cruxai-scriptYAML-driven pipeline scripting for the cruxai agentic DSL240MIT
loom-macrosProcedural macros for loom-rs runtime239MIT
openclaw-channelsChannel adapters for OpenClaw (Telegram, Discord, etc.)239MIT
sse-gatewayA lightweight, pluggable SSE (Server-Sent Events) gateway library239MIT OR Apache-2.0
nidus-integrationsStable envelope, correlation, lifecycle telemetry, and adapter composition primitives for Nidus integrations.239MIT OR Apache-2.0
faucet-source-mongodb-cdcMongoDB Change Streams (CDC) source for the faucet-stream ecosystem238MIT OR Apache-2.0
fr-rustA comprehensive framework/utility library for Actix-web, Postgres, Redis, and authentication.238MIT
magpie-bt-coreEngine core (picker, storage trait, alert ring, session orchestration) for the magpie BitTorrent library.237Apache-2.0 OR MIT
spn-ollamaOllama backend for SuperNovae model management237MIT OR Apache-2.0
worklane-coreShared job model and Broker contract for worklane brokers and extensions.237MIT OR Apache-2.0
cortexai-agentsAgent runtime for Cortex: execution, memory, persistence and multi-provider routing236Apache-2.0
axocoatl-daemonPersistent agent daemon runtime for Axocoatl — bootstraps and orchestrates all subsystems236Apache-2.0
faucet-sink-icebergApache Iceberg sink for the faucet-stream ecosystem236MIT OR Apache-2.0
ai2070-netHigh-performance, schema-agnostic, backend-agnostic event bus236Apache-2.0
enfipy-tigerbeetle-coreSafe low level callback-based async bindings to tigerbeetle client library.235Apache-2.0
async-serialportRuntime-agnostic async I/O wrappers for serial ports.235MIT
lazyflowA lazy, effectful streaming library for Rust -- FS2-inspired LazyFlow<B> with pull-based sources, async transforms, backpressure,…235MIT
nexo-cdpChrome DevTools Protocol (CDP) client used by Nexo plugins.235MIT OR Apache-2.0
iroh-h3-clientHTTP/3 client utilities over Iroh's QUIC P2P transport.235MIT
bwu_reduxAsync Redux-style state management for Rust, native and WASM234MIT OR Apache-2.0
altair-temporalStable facade over the pre-1.0 temporalio Rust SDK: typed Config, worker/client builders, retry + schedule builders, OTel-aware…233MIT
enact-pluginsPlugin discovery and loading for Enact — .enact-plugin/ manifest, namespaced commands/skills233MIT
sql-orm-coreCore contracts and shared types for the sql-orm workspace.233MIT
agility-macrosProcedural macros for the Agility reactive programming library232MIT OR Apache-2.0
eventuary-coreCore event model and async IO traits for eventuary232MIT
sansio-codecProtocol codecs for sansio: frame decoders, string codecs, and transport abstractions232MIT/Apache-2.0
acp-runtimeRust SDK for the Agent Communication Protocol (ACP)232Apache-2.0
adk-acpAgent Client Protocol (ACP) integration for ADK-Rust — connect to Claude Code, Codex, and other ACP agents232Apache-2.0
judiciousA rate-limiting library that enforces a cooldown period after a resource has been used (return-time based).232non-standard
openwire-rustlsRustls TLS connector integration for OpenWire231MIT
function-metricsPrometheus-native function instrumentation for Rust's metrics facade231MIT
chie-p2pP2P networking layer for CHIE Protocol231Apache-2.0
device-envoy-rpBuild Pico applications with LED panels, easy Wi-Fi, and composable device abstractions231MIT OR Apache-2.0
monocoque-rsHigh-performance ZeroMQ-compatible messaging runtime, io_uring by default with optional tokio and smol backends231MIT
cyberdrop-clientRust API client for Cyberdrop, with async support and typed models231MIT
rucora-toolsBuilt-in tools for rucora (shell, file, HTTP, git, web search, etc.)231MIT
faucet-lineageOpenLineage event emission for faucet-stream pipelines231MIT OR Apache-2.0
rusmes-jmapJMAP server for RusMES — RFC 8620/8621 HTTP/JSON mail API with Email, Mailbox, Thread, Blob, EventSource push, and…230Apache-2.0
durable-execution-sdkAWS Durable Execution SDK for Lambda Rust Runtime230Apache-2.0
futures-testingProperty-based testing framework for futures, fuzzing poll ordering to catch waker bugs230Apache-2.0
ta-eventsEvent system and subscription API for Trusted Autonomy229Apache-2.0
hiver-coreCore types and traits for Hiver Framework.
Hiver框架的核心类型和trait。
Equivalent to: Spring Core, Spring Context, Spring Beans229MIT OR Apache-2.0
chimera-coreShared traits, types, and transport for the chimera AI agent SDK229MIT
sansio-bootstrapsansio bootstrap for TCP and UDP229MIT/Apache-2.0
akribes-sdkRust client SDK for the Akribes workflow server229MIT
soe-llmsAn opiniated library for interacting with LLMS228MIT OR Apache-2.0
mondayioA thread per core runtime based on iouring.228MIT OR Apache-2.0
rustrade-frameworkOpen-source trading bot framework — the facade crate downstream services depend on (imported as `rustrade`)228MIT
oxiquic-transportOxiQUIC transport: Pure-Rust QUIC (RFC 9000/9001/9002) over rustls + tokio UDP, zero ring/aws-lc-rs.228Apache-2.0
hermesmqA simple, Raft-replicated message queue with priority, rate limiting, and push/pull delivery228AGPL-3.0-only
oxigdal-streamingReal-time data processing and streaming pipelines for OxiGDAL227Apache-2.0
faucet-transform-sqlSQL-as-transform for faucet-stream — run DuckDB SQL over each pipeline page (the `batch` relation).227MIT OR Apache-2.0
gearbox-rs-postgresPostgreSQL integration for Gearbox framework227MIT
hsmcHierarchical state machines (statecharts) with a declarative proc macro.227MIT
mq-bridge-appA message queue bridge application written in Rust, designed to connect different messaging systems like RabbitMQ, Kafka, and…227MIT
rust-tg-bot-extApplication framework for Telegram bots -- handlers, filters, persistence, job queue226LGPL-3.0-only
rusmes-smtpAsync SMTP server for RusMES — RFC 5321 compliant with STARTTLS, AUTH (PLAIN/LOGIN/CRAM-MD5/SCRAM-SHA-256), PIPELINING, DSN, and…226Apache-2.0
eiocAsync Engine.IO client implementation for Sioc226MIT OR Apache-2.0
dubbo-rs-tlsTLS/mTLS support for Apache Dubbo Rust via rustls226Apache-2.0
rust-okxAsync Rust client for the OKX v5 REST API225MIT OR Apache-2.0
armature-gcpGoogle Cloud Platform services integration for Armature - dynamically loadable and DI-ready225Apache-2.0
beetry-pluginInternal beetry crate. For the public API, check the beetry crate.225MIT
hooksniffHookSniff webhooks API client and webhook verification library225MIT
event_consumerAgnostic event consumer for outbox pattern224GPL-3.0
imessage-webhooksWebhook dispatch and event deduplication service for imessage-rs.224MIT
cell-coreCore primitives for the Cell distributed computing framework224MIT
motosan-workflow-runtimeExecution engine for motosan-workflow223MIT
agent-core-runtimeCore runtime for agent-core - LLM orchestration, tools, and permissions (no TUI dependencies)223MIT
grok-rust-sdkRust SDK for xAI's Grok API - supporting chat, tools, sessions, and collections223MIT OR Apache-2.0
rusmes-imapAsync IMAP4rev2 server for RusMES — RFC 9051 compliant with CONDSTORE, QRESYNC, UIDPLUS, MOVE, IDLE, NAMESPACE, and SPECIAL-USE…223Apache-2.0
ircbotAn async IRC bot framework for Rust powered by Tokio and procedural macros223MIT
ra-metapacPeripheral Access Crate (PAC) for Renesas RA microcontrollers.223LGPL-3.0-or-later
hayateHigh-performance completion-based QUIC transfer engine.223MIT
argentor-agentAgentic loop, LLM provider backends, guardrails, and ReAct engine for Argentor223AGPL-3.0-only
pulsehive-runtimeRuntime execution engine for PulseHive multi-agent SDK223AGPL-3.0-only
ocpncord-backend-opencodeno_std opencode HTTP Backend implementation for ocpncord.222AGPL-3.0-only
jamjet-protocolsJamJet protocol adapter trait — extensible inter-agent communication222Apache-2.0
soft-cycleAsync controller for coordinating soft restarts and graceful shutdowns with shared listeners222MIT
quinn-btlsBoringSSL crypto provider for quinn222MIT OR Apache-2.0
datum-sqlDataFusion and Arrow SQL front end for Datum streams222Apache-2.0
armature-azureMicrosoft Azure services integration for Armature - dynamically loadable and DI-ready221Apache-2.0
souchy-sqlx-crud-macrosProc macro implemtation for sqlx-crud to implement Create, Read, Update, and Delete (CRUD) methods on SQLx for you 🪄 📖 📝 ❌220MIT
otherone-tools工具调用 — AI 请求的工具调用解析和执行220MIT
agui-rs-coreCore types and events for the AG-UI protocol220Apache-2.0
soketi-rsHigh-performance, Pusher-compatible WebSocket server written in Rust with support for public, private, and presence channels219GPL-3.0
bat-markets-binanceBinance USD-M linear futures adapter for bat-markets219MIT OR Apache-2.0
atomr-agents-coding-cli-vendor-antigravityGoogle Antigravity CLI (agy) adapter for the coding-cli harness: stream-json parser + system-instruction projection. Successor to…219Apache-2.0
orbitcastReal-time WebSocket server with ActionCable protocol for Mothership218MIT
spine-neuralNeural network-based latent encoder for SPINE's Chameleon Protocol218AGPL-3.0-or-later
aerosocketUltra-fast, zero-copy WebSocket library for enterprise-scale applications218MIT OR Apache-2.0
kcp2-stdKCP protocol async implementation for Tokio — Actor model with KcpListener/KcpConnector218MIT
hap-controllerHigh-level HomeKit (HAP) controller API: discover, pair, connect, read/write/subscribe characteristics.218Apache-2.0
tronzIdiomatic, async-first Rust SDK for the TRON network.218MIT OR Apache-2.0
sui-daemonNix daemon replacement (worker protocol server) for the sui Rust-native Nix runtime218MIT
openwireOkHttp-inspired async HTTP client for Rust built on hyper and tower217MIT
scatter-proxyAsync request scheduler for unreliable SOCKS5 proxies — multi-path race for maximum throughput217MIT OR Apache-2.0
object_transferAn object transfer library for various message broker and/or protocols217MIT
hel-rsHigh-performance lock-free sharded sync+async MPMC/SPSC channels with keyed routing217MIT
zbinZero-copy binary trait for compio / compio 的零拷贝二进制 trait217MulanPSL-2.0
ax-codec-netNetwork utilities and Tokio codec integration for framed message encoding and decoding216MIT
aimdb-mqtt-connectorMQTT connector for AimDB - bidirectional pub/sub for Tokio and Embassy runtimes216Apache-2.0
responseUnified, type-safe API response builder for Axum applications.216MIT
periplonRust SDK for building multi-agent AI workflows and automation216MIT OR Apache-2.0
bob-chatChat channel types and streaming abstractions for Bob Agent Framework216Apache-2.0
quexA small async database facade for MariaDB/MySQL, Postgres, and SQLite.216MIT OR Apache-2.0
ragrigRAG framework for research and prototyping. Zero dependencies, hot-swap any agent at runtime, hybrid BM25+vector retrieval.…216MIT
plc-comm-slmp-rustAsync Rust SLMP client based on the plc-comm-slmp-dotnet implementation216MIT
eden-skillsDeterministic & Blazing-Fast Skills Manager for AI Agents (Claude Code, Cursor, Codex & More).215MIT
celers-macrosProcedural macros for CeleRS task definitions (#[task], #[derive(Task)])215Apache-2.0
openhelm-sdkTrait definitions and types for building openhelm skills and tools214MIT
archyAn async application framework with services, systems, and dependency injection214MIT OR Apache-2.0
bat-markets-bybitBybit linear USDT futures adapter for bat-markets214MIT OR Apache-2.0
openrustclaw-coreCore types, traits, and error handling for OpenRustClaw213MIT
agentic-workflowUniversal orchestration engine — workflows, pipelines, state machines, batch processing, and every coordination pattern213MIT
ctxguardA library for managing contexts.213MIT
hwhkit-integration-postgresHwhKit PostgreSQL integration213MIT OR Apache-2.0
montycatSelf-hosted vector database + NoSQL with built-in AI semantic search — the async Rust client for Montycat. A self-hosted Pinecone…212MIT OR Apache-2.0
runat-macrosProcedural macros for the RunAt job scheduler212MIT
torrentHigh-level async BitTorrent library — session management, HTTP/UDP tracker communication, DHT networking, peer connections, and…212MIT
alpaca-facadeHigh-level convenience facades built on top of the alpaca-rust workspace crates212MIT OR Apache-2.0
argentor-builtins50+ built-in skills (web search, crypto, file ops, security, data processing) for Argentor212AGPL-3.0-only
claude-apiType-safe Rust client for the Anthropic API211MIT OR Apache-2.0
praxis-contextContext management and summarization for AI agent conversations211MIT
lunaris-llmPluggable LLM-backend abstraction shared by lunaris-extract and lunaris-verify211Apache-2.0
lash-openai-schemaOpenAI JSON Schema projection helpers shared by Lash providers.211MIT
nestrs-cqrsCQRS primitives for nestrs.211MIT OR Apache-2.0
postmodernPostgres-backed job queue with transaction-based locking.211MIT OR Apache-2.0
ceylon-runtimeA Rust-based agent mesh framework for building local and distributed AI agent systems210MIT
colonyosRust SDK for ColonyOS - build distributed applications with executors that can run anywhere210MIT
rs-adkAgent runtime for Gemini Live — tools, streaming, agent transfer, middleware210MIT
prax-cassandraApache Cassandra database driver for Prax ORM - pure Rust async driver via cdrs-tokio210MIT OR Apache-2.0
rakka-accel-cudaGPU acceleration via the actor model. Wraps NVIDIA CUDA libraries (cuBLAS, cuDNN, cuFFT, cuRAND, cuSOLVER, cuSPARSE, cuTENSOR,…209Apache-2.0
lightshuttle-runtimeContainer runtime backends and lifecycle manager for LightShuttle209MIT OR Apache-2.0
wuhu-compressThree-tier context compression pipeline for the Wuhu agent framework.209MIT OR Apache-2.0
d-engine-serverProduction-ready Raft consensus engine server and runtime209MIT OR Apache-2.0
entelix-sessionentelix session — SessionGraph (event log), GraphEvent, fork, archival watermark209MIT
mcpkit-rs-configRust SDK for Model Context Protocol208Apache-2.0
roam-shm-ffiC bindings for roam shared-memory primitives208MIT OR Apache-2.0
zus-rsZUS RPC Framework - Rust implementation with cross-language compatibility207MIT OR Apache-2.0
trash_parallelismAzzybana Raccoon's comprehensive parallelism library.207Apache-2.0
kafkit-clientKafka 4.0+ pure Rust client.207Apache-2.0
resoluteCompile-time-checked PostgreSQL queries with a pure-Rust wire protocol driver.207MIT OR Apache-2.0
simploxide-ffi-coreSimpleX-Chat raw FFI client207AGPL-3.0
sqlmodelSQL databases in Rust, designed to be intuitive and type-safe207LicenseRef-MIT-OpenAI-Anthropic-Rider
paigasus-helikon-runtime-axumSelf-hosted Axum HTTP/SSE/WebSocket server runtime for Paigasus Helikon agents207Apache-2.0 OR MIT
blackbox-recorderLocal flight recorder and debugger for AI-agent runs: PTY capture, SQLite traces, redacted export207MIT OR Apache-2.0
aws-ssm-bridgeRust library implementing AWS Systems Manager Session Manager protocol206MIT
rustorm-coreCore traits, types and utilities for RustORM206MIT
sharddOfficial Rust client for shardd — a globally distributed credit ledger with automatic regional failover.205MIT
action_dispatch通用的基于属性宏的 Action 注册与分发系统,支持正则匹配、优先级、全局同步执行模式205MIT OR Apache-2.0
turboclaudeUnofficial Rust SDK for Anthropic's Claude API with 100% feature parity to official Python SDK205MIT
atomr-agents-coding-cli-harnessHarness wrapping local AI coding CLIs (Claude Code, Codex, Antigravity) as atomr-agents Callables. Headless mode parses…205Apache-2.0
lnc-clientLANCE client library - Rust client for the LANCE streaming platform205Apache-2.0
cruxx-scriptYAML-driven pipeline scripting for the cruxx agentic DSL205MIT
spine-cryptoAdvanced cryptographic primitives for SPINE including transformer prediction and post-quantum key evolution205AGPL-3.0-or-later
disposition_svg_modelData types for disposition to represent SVG elements.205MIT OR Apache-2.0
forge-jobs-uiReusable Leptos CSR panel for the forge-jobs queue. Overview, timeline, cron, scheduled-jobs, dead-letter inspector —…205MIT OR Apache-2.0
main-loop-asyncMakes running async code from a main loop (ui loop, game loop) more ergonomic205MIT OR Apache-2.0
rubbo-rpcRust implementation of Apache Dubbo 3. High-performance RPC framework with Triple protocol.204MIT
tobyA simple, opinionated Telegram bot library with structured command parsing204MIT
langchain-ai-rustBuild LLM applications in Rust with type safety: chains, agents, RAG, LangGraph,
embeddings, vector stores, and 20+ document…204MIT
rucora-embedEmbedding providers for rucora204MIT
async-inspect-macrosProcedural macros for async-inspect - X-ray vision for async Rust204MIT
oxihttp-serverOxiHTTP HTTP server implementation.204Apache-2.0
siocAsync Socket.IO client with type-safe event handling204MIT OR Apache-2.0
rubbo-clusterRust implementation of Apache Dubbo 3. High-performance RPC framework with Triple protocol.204MIT
mononokeClonable, retryable builder wrappers over the mongodb driver204MIT OR Apache-2.0
eluraRust framework for authoritative realtime gameplay and extensible online game services204MIT OR Apache-2.0
tgbotrsA fully-featured, auto-generated Telegram Bot API library for Rust. All 285 types and 165 methods - strongly typed, fully async.203MIT
qhookLightweight webhook gateway and workflow engine with queue, retry, and signature verification.203Apache-2.0
entelix-tool-deriveentelix proc-macro — #[tool] attribute for typed-input tool authoring on top of entelix-tools::SchemaTool203MIT
whatsmeowIdiomatic, thread-safe Rust bindings for WhatsApp via WhatsMeow Go bridge202MIT
tiny-agent-rsA lightweight, type-safe Rust agent library for LLM tool calling202MIT
atomr-agents-deep-research-harnessPluggable deep-research harness: clarify→plan→search→write→verify, multi-agent parallel, and iterative-deepening strategies…202Apache-2.0
dynamo_tableA high-level DynamoDB table abstraction with get_item, query, update, filter, batch operations, pagination, and type-safe queries202MIT OR Apache-2.0
smux_rustA simple multiplexing library for Rust, inspired by xtaci/smux202MIT
motosan-agent-workflowA general-purpose DAG-based agent workflow engine202MIT
tako-rs-pluginsInternal plugin and concrete-middleware implementations for tako-rs. Use the `tako-rs` umbrella crate instead.202MIT
ecson_ecsECS types, events, resources, and built-in plugins for the Ecson server framework201MIT
async-foundationFoundational async primitives for Rust - timers, networking, and common utilities201MIT
rpressLightweight async HTTP/1.1 and HTTP/2 framework built on tokio with TLS (rustls), routing, middleware, streaming, compression,…201MIT
async-dispatchAsync task dispatch via Grand Central Dispatch200Apache-2.0
aihorde-rsRust library for using AI Horde with ease200non-standard
axocoatl-graphWorkflow graph model for Axocoatl agent orchestration200Apache-2.0
rigatoni-storesState store implementations for Rigatoni CDC/Data Replication: Memory, File, Redis for distributed state management199Apache-2.0
orchestral-coreCore abstractions, SPI contracts, configuration, and default in-memory stores for Orchestral runtime199MIT
oxisql-datafusionApache DataFusion TableProvider over oxisql Connection — enables OLAP SQL queries against oxisql-backed tables199Apache-2.0