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.
ts_derptailscale derp client118BSD-3-Clause
rocketmq-authUnofficial Rust implementation of Apache RocketMQ117MIT OR Apache-2.0
camunda-orchestration-sdkErgonomic Rust SDK for the Camunda 8 Orchestration Cluster REST API117Apache-2.0
coreon-eipEnterprise Integration Pattern processors for camel-rs.117Apache-2.0
rubboRust implementation of Apache Dubbo 3. High-performance RPC framework with Triple protocol.117MIT
lash-tool-webWeb-fetch and search tools for the lash agent runtime.117MIT
aprs-rtpDecode 1200-baud APRS packets from ka9q-radio RTP multicast audio streams117MIT OR Apache-2.0
entelix-cloudentelix cloud transports — Bedrock, Vertex, Foundry; OAuth refresh (gcp_auth, aws-sigv4, azure_identity)117MIT
oxirpc-healthgRPC Health Checking (v1) service wrapper for OxiRPC117Apache-2.0
jmap-contacts-clientJMAP Contacts HTTP client — extension trait over jmap-base-client117MIT OR Apache-2.0
peashapeA traffic-shaping middleware for pea2pea nodes: constant-rate or Poisson outbound traffic, automatic frame padding, and priority…117CC0-1.0 OR MIT
enact-grpcgRPC server for Enact runtime service116MIT
lunaris-storage-embeddedZero-dependency embedded storage backend for Lunaris (SQLite — memory:// and sqlite:///path)116Apache-2.0
krabdexA type-safe, async Rust SDK for the PokeAPI116MIT OR Apache-2.0
redis-tower-protocolRESP protocol types and codec for redis-tower, backed by resp-rs116MIT OR Apache-2.0
ansiq-surfaceTerminal session lifecycle, viewport policy, and inline history management for Ansiq.116MIT
nautilus-betfairBetfair exchange integration adapter for the Nautilus trading engine116LGPL-3.0-or-later
rain-engine-ingressIngress utilities for RainEngine event delivery116MIT
rain-engine-wasmWASM skill execution for RainEngine116MIT
rain-engine-blobBlob storage backends for RainEngine attachments116MIT
asterdex-sdkAsterDex Futures SDK v3 — Rust async client for REST and WebSocket APIs116MIT
openhawk-coreCore runtime for OpenHawk Agent OS — agent lifecycle, orchestration, config, healing116MIT
ninep-clientAsync 9P2000.L client with transparent reconnection116AGPL-3.0
worklane-redisSingle-node Redis-backed durable worklane broker for production services.116MIT OR Apache-2.0
flowersecNative Rust SDK for Flowersec secure direct and tunneled sessions116MIT
spine-knowledgeDistributed knowledge base with bioinspired memory architecture for SPINE115AGPL-3.0-or-later
cellos-serverHTTP control plane for CellOS — admission, projection over JetStream, WebSocket fan-out of CloudEvents. Pure event-sourced…115MIT OR Apache-2.0
agent-ioA Rust SDK for building AI agents with multi-provider LLM support115Apache-2.0
hexeract-cliHexeract unified command-line interface115MIT OR Apache-2.0
atomr-agents-sandbox-coreBackend-agnostic microVM sandbox traits, profile/budget/request types, lifecycle events, and a deterministic in-memory mock…115Apache-2.0
xerv-executorXERV orchestration executor: DAG scheduler, selector linker, pipeline controller, and REST API115Apache-2.0
xerv-nodesStandard workflow nodes for XERV: merge, split, switch, loop, map, and transform operations115Apache-2.0
ansiq-layoutLayout measurement, shell slotting, and partial relayout support for Ansiq.115MIT
lash-tool-filesFile-system tool suite (read/write/list) for the lash agent runtime.115MIT
openai-agents-realtime-rsRealtime runtime, sessions, and event models for openai-agents-rust.115MIT
rain-engine-skillsBuilt-in trusted skills for RainEngine runtimes115MIT
rain-engine-store-sqliteSQLite ledger store for RainEngine115MIT
echo_agentProduction-grade AI Agent framework for Rust — ReAct engine, multi-agent, memory, streaming, MCP, IM channels, workflows115MIT
eventide-domainDomain layer for the eventide DDD/CQRS toolkit: aggregates, entities, value objects, domain events, repositories, and an…115MIT OR Apache-2.0
honcho-aiRust SDK for Honcho — AI agent memory and social cognition infrastructure115MIT
nidus-jobs-sqlxSQLx-backed durable jobs for Nidus with SQLite, PostgreSQL, CockroachDB, and MySQL support.115MIT OR Apache-2.0
paigasus-helikon-cliCLI binaries (helikon, paigasus-helikon) for the Paigasus Helikon AI SDK.115Apache-2.0 OR MIT
daimon-provider-llamacppDeprecated: re-exports daimon-provider-local::llamacpp. Depend on daimon-provider-local directly.115MIT OR Apache-2.0
gpui-queryTanStack Query-inspired async state management for GPUI115MIT
crypsol_storageMulti-cloud storage library for Rust with image processing, validation, and thumbnail generation. Supports AWS S3, GCS, Azure…114MIT
agentic-robotics-rtHigh-performance agentic robotics framework with ROS2 compatibility114MIT OR Apache-2.0
agentic-robotics-embeddedHigh-performance agentic robotics framework with ROS2 compatibility114MIT OR Apache-2.0
fastioFast cross-platform file I/O backends for Rust114Apache-2.0
checkstream-policyYAML-based policy engine for LLM safety rules, triggers, and actions114Apache-2.0
checkstream-telemetryHash-chained audit trail and Prometheus metrics for CheckStream114Apache-2.0
rain-engine-cognitionPlanning and task orchestration for RainEngine114MIT
rain-engine-provider-geminiGemini provider for RainEngine114MIT
virtual-socketDemultiplex a single tokio UdpSocket into multiple virtual UDP sockets sharing one physical bind.114MIT
nidus-natsFirst-party NATS and JetStream adapter for Nidus built on async-nats.114MIT OR Apache-2.0
dyn-utilsA utility library for working with trait objects.113MIT OR Apache-2.0
apt-transportAPT transport abstraction, allowing for custom APT transport implementations in Rust113MIT
goblin-engineA high-performance async workflow engine for executing scripts in planned sequences with dependency resolution113MIT
ansiq-widgetsWidget builders and shell-oriented UI primitives for Ansiq.113MIT
disposition_modelSVG diagram generator input data model.113MIT OR Apache-2.0
rain-engine-store-pgPostgres ledger store for RainEngine113MIT
tiny-proxyA high-performance HTTP reverse proxy server written in Rust with SSE support, connection pooling, and configurable routing113MIT OR Apache-2.0
xlb-netOpinionated wrapper over iroh: per-machine Ed25519 identity, ALPN-multiplexed Endpoint, composed peer discovery (mDNS /…113MIT OR Apache-2.0
h3-bodyAdapt h3 server / client RequestStream to a single http_body::Body surface.113MIT
sql-orm-tiberiusTiberius execution adapter for sql-orm.113MIT
omnia-ormObject-relational mapping helper, suitable for use with omnia-wasi-sql113MIT OR Apache-2.0
nidus-sqsFirst-party AWS SQS adapter for Nidus built on the official AWS SDK for Rust.113MIT OR Apache-2.0
typeway-protobufProtobuf wire format codec for the typeway web framework112MIT OR Apache-2.0
nacelle-tcpTCP transport and protocol runtime for Nacelle streaming handlers.112MIT
jamjet-modelsJamJet model adapter layer — unified interface for LLM providers111Apache-2.0
neuronComposable async agentic AI framework for Rust111MIT OR Apache-2.0
rakka-streamsTyped reactive streams DSL for rakka — Source / Flow / Sink, junctions, framing, kill switches, hubs, stream refs.111Apache-2.0
grorm-macrosGoroutine-native ORM for Rust with multi-database support111MIT
ticksupplyOfficial Rust client for the Ticksupply market data API111MIT
entelix-ragentelix RAG primitives — Document with provenance + lineage, DocumentLoader / TextSplitter / Chunker traits. Algorithmic…111MIT
worklane-testConformance test suite for third-party worklane broker implementors.111MIT OR Apache-2.0
nidus-sentryProduction Sentry error, tracing, panic, and Tower integration for Nidus.111MIT OR Apache-2.0
parallax-pipelineParallax: a Rust-native streaming pipeline engine with zero-copy multi-process support111MIT OR Apache-2.0
solaredge-modbusSolarEdge modbus client110LGPL-3.0
contextvm-sdkRust SDK for the ContextVM protocol — MCP over Nostr110MIT
pacta-driverMechanical runtime loop for Pacta execution.110MIT OR Apache-2.0
rskit-chainSequential chain execution pattern for rskit110MIT
ecson_macrosDerive macros for the Ecson server framework (reserved for future use)110MIT
accelerator-macrosProcedural macros for the accelerator cache runtime110MIT
mixtape-toolsReady-to-use tool implementations for the mixtape agent framework110MIT
omnillmProduction-grade LLM API gateway with multi-key load balancing, per-key rate limiting, circuit breaking, and cost tracking110MIT OR Apache-2.0
disk_backed_queueA robust, crash-resistant queue implementation that persists all data to disk using SQLite110MIT
behest-adapter-openaiOpenAI chat and embedding adapters for the behest agent runtime110MIT OR Apache-2.0
ecsonECS-driven stateful bidirectional server framework for Rust110MIT
echo_toolsDomain tools for echo-agent framework (chart, data, database, git, media, web, rag)110MIT
v_exchanges_bookOrderbook abstraction for v_exchanges110MIT
nidus-opentelemetryProduction OpenTelemetry SDK and OTLP tracing pipeline for Nidus.110MIT OR Apache-2.0
nidus-redisFirst-party Redis data adapter for Nidus with typed DI, bounded reconnects, health, and native client access.110MIT OR Apache-2.0
dubbo-rs-protocol-tripleTriple protocol (HTTP/2 gRPC-compatible) for Apache Dubbo Rust109Apache-2.0
agentic-robotics-mcpHigh-performance agentic robotics framework with ROS2 compatibility109MIT OR Apache-2.0
fluxion-stream-timeTime-based operators extending fluxion-stream with monotonic timestamps109Apache-2.0
faucet-source-singerSinger tap bridge source for the faucet-stream ecosystem (single-stream v0)109MIT OR Apache-2.0
po-transportTransport abstractions and QUIC implementation for Protocol Orzatty109MIT OR Apache-2.0
dubbo-rs-proxyProxy factory abstraction for creating RPC invoker proxies in Apache Dubbo Rust109Apache-2.0
apalis-diesel-postgresPostgreSQL storage backend for Apalis implemented with Diesel.109MIT OR Apache-2.0
nidus-kafkaFirst-party Apache Kafka adapter for Nidus built on rust-rdkafka.109MIT OR Apache-2.0
aselectOpinionated replacement for tokio::select!, avoiding certain pitfalls.108MIT OR Apache-2.0
subetha-coreSubstrate for the CXC / SubEtha IPC stack: handshake header, observation ring, migration generation, marshal trait, CPU-feature…108MIT
http-ferryResumable, checksum-verified streaming byte transfer from HTTP sources to pluggable sinks108MIT OR Apache-2.0
airnestSilent, async SQLite persistence for Rust. Derive once, store forever.108MIT OR Apache-2.0
nidus-rabbitmqFirst-party RabbitMQ AMQP 0-9-1 adapter for Nidus built on Lapin.108MIT OR Apache-2.0
axocoatl-cliCommand-line interface for the Axocoatl agentic AI framework108Apache-2.0
openrouter2Typed async and blocking reqwest clients for the OpenRouter API.107MIT OR Apache-2.0
openclaw-ipcIPC message types and nng transport for OpenClaw107MIT
hexeract-middlewareBuilt-in middlewares for the Hexeract messaging framework: tracing spans and dispatch timeouts.107MIT OR Apache-2.0
hedged-rpc-clientHigh-performance Solana RPC client with request hedging for tail latency elimination107MIT
poprako-orchestraA unified transaction abstraction framework for Rust — decoupled Oper, Step, Nucl, and Run traits107MIT
lash-provider-codexOpenAI Codex OAuth provider for lash (ChatGPT Plus/Pro/Team).107MIT
traitclaw-teamMulti-agent orchestration for TraitClaw — teams, routing, delegation, and verification chains107MIT OR Apache-2.0
spine-transportHigh-performance zero-copy transport layer for SPINE107AGPL-3.0-or-later
spine-parserUnified representation parser for SPINE107AGPL-3.0-or-later
spine-agenticThe SPINE Agentic Web Stack - A bioinspired paradigm for agent-native web interaction107AGPL-3.0-or-later
entelix-tokenizer-tiktokenentelix vendor-accurate TokenCounter for OpenAI BPE encodings (cl100k_base, o200k_base, p50k_base, r50k_base) — wraps tiktoken-rs…107MIT
nacelle-httpHyper HTTP/1 transport and HTTP edge policy runtime for Nacelle streaming handlers.107MIT
memory-admissionMemory-aware admission gate for parallel work pipelines (sync + async APIs)107MIT OR Apache-2.0
rustsonrpc-macrosProc macros for rustsonrpc services and named JSON-RPC params.107MIT
oxirpc-clientOxiRPC client: plaintext channel builder, TLS, metrics107Apache-2.0
service-daemonA declarative Rust framework for automatic service management, event-driven triggers, and compile-time dependency injection.107MIT OR Apache-2.0
awaken-agentCompatibility umbrella crate re-exporting awaken107MIT OR Apache-2.0
genja-coreCore Genja primitives for task execution, inventory modeling, settings loading, connection state, and structured task results107MPL-2.0
bus-coreCore traits and types for eventbus-rs with zero NATS dependencies106MIT OR Apache-2.0
aimdb-knx-connectorKNX/IP connector for AimDB - building automation integration for Tokio and Embassy runtimes106Apache-2.0
tokio-bind-retryBind a tokio TcpListener / UdpSocket with exponential backoff and cancellation support.106MIT
refluxerRust API wrapper for Fluxer105MIT
outfox-doubaoDoubao (ByteDance Volcengine) API client for outfox105MIT OR Apache-2.0
dvb-streamAsync/tokio stream adapters over dvb-si SiDemux and dvb-t2mi T2miPump.105MIT OR Apache-2.0
nodeventA simple Node.js-style event bus105MIT
praxisHigh-performance React agent framework for building AI agents with LLM, tool execution, and persistence105MIT
tracing-unlikelyA wrapper around `tracing` that minimizes overhead when tracing is disabled.105MIT
haagenti-serverlessServerless deployment with cold start optimization and GPU memory management105MIT OR Apache-2.0
dasein-agentic-llmLLM adapters for OpenAI, Anthropic, Gemini, Ollama105MIT
async-inspectX-ray vision for async Rust - inspect and debug async state machines105MIT
open-multi-agent-rsA multi-agent orchestration framework for Rust — streaming LLM calls, tool use, task pipelines, retry, and observability.105Apache-2.0
luft-coreLuft core contracts: AgentBackend trait, scheduling, journaling, state105MIT
cmdregA lightweight string-keyed command dispatcher with axum-style extractors for Rust104MIT
solana-pump-grpc-sdkSolana Pump/PumpAmm gRPC event listener SDK104MIT
kojin-amqpRabbitMQ (AMQP) broker for the kojin task queue104MIT OR Apache-2.0
kojin-dashboardJSON API dashboard for monitoring the kojin task queue104MIT OR Apache-2.0
nebucloud-xdsProduction-ready xDS control plane library for Rust104MIT OR Apache-2.0
hick-embassyAsync mDNS / DNS-SD for embassy: the `hick-smoltcp` engine driven on embassy-net + embassy-time. `no_std` + `alloc`.104MIT OR Apache-2.0
component-mapGeneric component manager with sync/async and fallible/infallible initialisation104MIT
d7s_dbDatabase abstraction layer for d7s (PostgreSQL and SQLite)104MIT
katha-sqlxSQLite/Postgres event-sourcing backend for katha (SqlxEventStore, SqlxCommandStore)104MIT OR Apache-2.0
hiver-httpHTTP server and client for Hiver Framework.
Hiver框架的HTTP服务器和客户端。
Equivalent to: Spring Web, Spring WebFlux, Spring MVC104MIT OR Apache-2.0
afasterHigh-performance Rust backend framework template with 25+ built-in business modules (WeChat ecosystem, OAuth2, push…104MIT
spine-wasmWebAssembly runtime for SPINE Binary (HLB) execution104AGPL-3.0-or-later
iroshSecure P2P SSH and data transfer protocol. Connect to any machine without an IP address, open ports, or VPNs.104MIT OR Apache-2.0
mimo-apiXiaomi MiMo API client library for Rust104MIT
oxirpc-serverOxiRPC server: plaintext server builder with graceful shutdown104Apache-2.0
atomr-infer-runtime-candlePure-Rust transformer inference for atomr-infer via the candle crate family. Feature-gated; default-features-off compiles to a…103Apache-2.0
haagenti-streamingReal-time streaming generation with progressive preview display103MIT OR Apache-2.0
rama-net-apple-xpcApple XPC support for rama103MIT OR Apache-2.0
haagenti-speculativeSpeculative fragment loading based on keystroke intent prediction103MIT OR Apache-2.0
bb8-ldapA bb8 connection pool manager for ldap3 async LDAP connections103MIT
callwireHigh-performance bidirectional RPC over TCP with MessagePack framing — Go, Python, Rust interop103MIT
entelix-policyentelix multi-tenant primitives — TenantPolicy, RateLimiter, PiiRedactor, CostMeter, QuotaLimiter103MIT
qmpQEMU QMP client library102MIT
kojinAsync distributed task queue for Rust — like Celery, BullMQ, Sidekiq, but for Rust102MIT OR Apache-2.0
adk-rs-macrosProcedural macros for adk-rs (the `#[tool]` attribute).102Apache-2.0
wireguard-hyper-connectorHyper connector for making HTTP requests through a WireGuard tunnel102GPL-3.0
fast-down-gui超级快的下载器图形化界面102MIT
ratatui-reactiveA minimalistic framework for building TUI applications using fine-grained reactivity.102MIT
entelix-otelentelix observability — full OpenTelemetry GenAI semconv span builders, metrics, log bridge102MIT
chromist-typesCore CDP wire types and traits for chromist102MIT OR Apache-2.0
entelix-persistenceentelix persistence — Postgres + Redis impls of Checkpointer, Store, SessionLog, plus distributed session lock102MIT
entelix-serverentelix HTTP service — axum + 5-mode SSE streaming + multi-tenant header extraction (LangServe substitute)102MIT
worklane-memoryIn-memory worklane broker for development, tests, and examples.102MIT OR Apache-2.0
meld-rpcgRPC proto bindings and contract generation tooling for Meld.101MIT
json-pollerA lightweight, flexible, high-performance JSON polling library for Rust.101MIT OR Apache-2.0
enact-gatewayThin secure webhook gateway for Enact channels101MIT
tower-canonical-redirectA Tower middleware to enforce canonical hosts in HTTP requests101MIT OR Apache-2.0
llm-cascadeResilient cascading LLM inference with automatic failover across multiple providers101MIT
disposition_input_ir_rtLogic to map `disposition` input model to intermediate representation.101MIT OR Apache-2.0
email-kitConvenience facade for the email-rs crates101MIT
entelix-tokenizer-hfentelix vendor-accurate TokenCounter wrapping HuggingFace `tokenizers` — Llama / Qwen / Mistral / DeepSeek and any tokenizer.json…101MIT
adk-rsRust port of the Google Agent Development Kit (ADK).101Apache-2.0
atomr-agents-deep-research-shellTwo-tier outer shell for atomr-agents deep research: intent classifier routes between a fast shallow path and the full deep…101Apache-2.0
netconf-rustAn async NETCONF client library implementing RFC 6241 (NETCONF), RFC 6242 (chunked framing), and RFC 4742 (EOM framing) with…100MIT OR Apache-2.0
ferrisshAsync SSH CLI scraper library for network device automation100MIT OR Apache-2.0
paladin-aiEnterprise AI orchestration framework with multi-agent coordination patterns100MIT
tokilake-smuxTokilake SMUX - Wire-compatible smux protocol, zero-overhead Rust implementation100MIT
rswsProduction-grade, RFC 6455 compliant WebSocket library for Rust100MIT
atomr-agents-web-search-provider-tavilyTavily WebSearch provider for atomr-agents.100Apache-2.0
swiftide-docker-serviceA docker executor for swiftide agent tools100MIT
memory_stashIn-memory cache with policies100BSD-2-Clause
atomr-infer-pipelineatomr-streams integration for atomr-infer; re-exports the atomr-accel-patterns blueprints (DynamicBatchingServer,…99Apache-2.0
ziprandA lightweight library for random access reading of uncompressed (STORED) ZIP files with async support99Apache-2.0
overseerd-axum-stompSTOMP 1.2 WebSocket messaging protocol for overseerd-axum.99MIT
oxiquicOxiQUIC Pure-Rust QUIC facade for the COOLJAPAN ecosystem.99Apache-2.0
pf_agent_sdkRuntime-first SDK for building PromptFleet agents with optional A2A and AG-UI adapters99Apache-2.0
rok-events-macrosDerive macro for the rok-events Event trait99MIT
entelix-graphmemory-pgentelix concrete GraphMemory — sqlx + Postgres backend (nodes + typed timestamped edges)99MIT
memableAn embeddable durable execution engine using key-based memoisation99MIT OR Apache-2.0
entelix-mcpentelix MCP integration — JSON-RPC 2.0 over HTTP, per-tenant pool, lazy provisioning99MIT
tonic-xdsxDS routing and load balancing implementation for Tonic and Tower services99MIT
fastwebsockets-streamAn adapter that exposes fastwebsockets::WebSocket as a Tokio AsyncRead/AsyncWrite stream.99MIT