Installation

From GitHub

[dependencies]
cersei = { git = "https://github.com/pacifio/cersei" }
tokio = { version = "1", features = ["full"] }
anyhow = "1"

Or via the CLI:

cargo add cersei --git https://github.com/pacifio/cersei
cargo add tokio --features full
cargo add anyhow

Optional: Graph Memory

Enable the Grafeo graph backend for relationship-aware recall:

cersei-memory = { git = "https://github.com/pacifio/cersei", features = ["graph"] }

Optional: Individual Crates

Use specific crates if you only need parts of the SDK:

cersei-types = { git = "https://github.com/pacifio/cersei" }     # Core types only
cersei-provider = { git = "https://github.com/pacifio/cersei" }   # LLM providers
cersei-tools = { git = "https://github.com/pacifio/cersei" }      # Tool system
cersei-agent = { git = "https://github.com/pacifio/cersei" }      # Agent runtime
cersei-memory = { git = "https://github.com/pacifio/cersei" }     # Memory backends
cersei-hooks = { git = "https://github.com/pacifio/cersei" }      # Hooks/middleware
cersei-mcp = { git = "https://github.com/pacifio/cersei" }        # MCP client

Abstract CLI

Install the reference CLI tool built on Cersei:

cargo install --git https://github.com/pacifio/cersei abstract-cli

This installs the abstract binary — a complete coding agent CLI.

Environment Variables

Variable	Provider	Required
`ANTHROPIC_API_KEY`	Anthropic	For Claude models
`OPENAI_API_KEY`	OpenAI	For GPT models

At least one provider key is needed. Both can be set simultaneously.

System Requirements

Rust 1.75+ (edition 2021)
rg (ripgrep) — optional, Grep tool falls back to system grep
macOS, Linux, or Windows