$registry / leaderboard
leaderboard
20+ workersranked by total installs across the registry. switch to 7d for recent momentum.
0124,3830212,135039,988046,719055,273065,141073,730083,348092,733102,623111,943121,773131,769141,701151,698161,683171,451181,102+20.6%191,06920995
iii-stream
Build durable streams for real-time data subscriptions.
iii-sandbox
Spawn ephemeral microVMs and expose 14 sandbox::* triggers (lifecycle + filesystem) for isolated command execution and file ops.
iii-observability
OpenTelemetry-based traces, metrics, logs, alerts, and sampling.
configuration
Register, store, and watch typed configuration values for the engine.
queue
Durable function queues - registers the `durable:subscriber` trigger type and the queue/DLQ service functions.
state
Distributed key-value state management with reactive change triggers — registers the `state` trigger type and the `state::*` functions.
llm-router
One front door + provider protocol in front of every LLM provider.
cron
Schedule functions with cron expressions - registers the `cron` trigger type.
iii-directory
Engine introspection, workers registry proxy, filesystem-backed skills, system prompts, and agent profiles, plus lexical function search with a conditional pre-generate hint.
http
Expose functions as HTTP endpoints — registers the `http` trigger type and serves matched routes.
shell
Unix shell + filesystem worker — exec with denylist/timeout/output caps and background jobs; fs::ls|stat|mkdir|rm|chmod|mv|grep|sed|read|write with host jail, denylist, size caps, and sandbox-target forwarding
provider-openai
OpenAI Responses provider worker with Chat Completions compatibility; implements provider::openai::stream and provider::openai::refresh_models behind llm-router.
session-manager
Durable, reactive, branching store of typed conversation entries with six emitted trigger types.
harness
Thin durable turn loop that wires session-manager, context-manager, and llm-router into an agent loop; spawns sub-agents as child sessions.
context-manager
Turns a raw conversation history plus a target model into a model-ready context — token counting, function-result pruning, and history compaction.
provider-anthropic
Anthropic Messages API provider worker; implements provider::anthropic::stream and provider::anthropic::refresh_models behind llm-router.
scrapling
Scrapling as an iii worker — scrapling::* functions run HTTP / anti-bot / browser fetches, CSS/XPath/regex/adaptive extraction, persistent sessions, and a declarative crawl over the iii bus.
database
Talk to PostgreSQL, MySQL, and SQLite from iii — query, execute, transactions, prepared statements, and change feeds.
console
Web console for iii — bundles the React UI and proxies the engine WebSocket on a single port.
iii-lsp
III Language Server — autocompletion and hover for III engine functions and triggers