rust-langgraph 0.1.1

Stateful graph runtime for LLM workflows in Rust (community project; not affiliated with LangChain). Pregel-style execution: nodes, conditional edges, checkpoints, streaming. Optional adapters for Ollama, OpenAI, OpenRouter (OpenAI-compatible), and Anthropic; optional ReAct agent + tools. Crate import: rust_langgraph (underscore). Default features include in-memory checkpoints. Enable Cargo features explicitly for LLM modules (e.g. ollama, openai, openrouter, anthropic, prebuilt). See README.md on crates.io for copy-paste Cargo.toml, env vars, and common mistakes.
Documentation 
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[package]
name = "rust-langgraph"
version = "0.1.1"
edition = "2021"
authors = ["Rust LangGraph contributors"]
description = """
Stateful graph runtime for LLM workflows in Rust (community project; not affiliated with LangChain).
Pregel-style execution: nodes, conditional edges, checkpoints, streaming. Optional adapters for
Ollama, OpenAI, OpenRouter (OpenAI-compatible), and Anthropic; optional ReAct agent + tools.
Crate import: rust_langgraph (underscore). Default features include in-memory checkpoints.
Enable Cargo features explicitly for LLM modules (e.g. ollama, openai, openrouter, anthropic, prebuilt).
See README.md on crates.io for copy-paste Cargo.toml, env vars, and common mistakes.
"""
license = "MIT"
repository = "https://github.com/kareem2002-k/rust-langgraph"
documentation = "https://docs.rs/rust-langgraph"
keywords = ["langgraph", "llm", "agent", "workflow", "async"]
categories = ["asynchronous", "web-programming"]
readme = "README.md"

[features]
default = ["memory-checkpoint"]
memory-checkpoint = []
sqlite = ["dep:sqlx", "sqlx/sqlite", "sqlx/runtime-tokio"]
postgres = ["dep:sqlx", "sqlx/postgres", "sqlx/runtime-tokio"]
openai = ["dep:reqwest", "dep:async-openai"]
openrouter = ["dep:reqwest", "dep:async-openai"]
anthropic = ["dep:reqwest"]
ollama = ["dep:reqwest"]
prebuilt = []

[dependencies]
# Core async runtime
tokio = { version = "1.40", features = ["full"] }
tokio-stream = "0.1"
async-trait = "0.1"
futures = "0.3"
pin-project = "1.1"

# Serialization
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"

# Error handling
thiserror = "1.0"
anyhow = "1.0"

# Logging
tracing = "0.1"

# UUID generation for checkpoints
uuid = { version = "1.10", features = ["v4", "serde"] }

# Date/time for timestamps
chrono = { version = "0.4", features = ["serde"] }

# Optional database support
sqlx = { version = "0.8", optional = true, features = ["json"] }

# Optional HTTP client for LLM providers
reqwest = { version = "0.12", optional = true, features = ["json"] }
async-openai = { version = "0.24", optional = true }

[dev-dependencies]
tokio-test = "0.4"
proptest = "1.5"

[lib]
name = "rust_langgraph"
path = "src/lib.rs"

[[example]]
name = "simple_graph"
path = "examples/01_simple_graph.rs"

[[example]]
name = "conditional_edges"
path = "examples/02_conditional_edges.rs"

[[example]]
name = "checkpointing"
path = "examples/03_checkpointing.rs"

[[example]]
name = "streaming"
path = "examples/04_streaming.rs"

[[example]]
name = "ollama_chat"
path = "examples/05_ollama_chat.rs"
required-features = ["ollama"]

[[example]]
name = "react_agent_ollama"
path = "examples/06_react_agent_ollama.rs"
required-features = ["ollama", "prebuilt"]

[[example]]
name = "custom_state"
path = "examples/08_custom_state.rs"

[[example]]
name = "openrouter_chat"
path = "examples/07_openrouter_chat.rs"
required-features = ["openrouter"]