AgentIndex icon
AgentIndex
ToolsCategoriesTrendingNewCompare
Submit Tool
Home/
Compare/
roam-code vs fast-agent
roam-code logo
roam-code
★ 466
vs
fast-agent logo
fast-agent
★ 3.8k

roam-code vs fast-agent

roam-code: Roam is a structural intelligence engine that pre-indexes codebases into a semantic graph using SQLite, tree-sitter, and git history. It provides AI coding agents with five core verbs—understand, retrieve, context, preflight, critique—replacing dozens of grep/read calls with a single graph query. The tool is 100% local, supports 27 languages, and offers 154 commands along with 120 MCP tools.; fast-agent: fast-agent is a CLI-first framework for building and interacting with sophisticated multimodal AI agents and workflows. It offers comprehensive support for various LLM providers, structured outputs, and vision, with unique features like MCP Feature support and live streaming responses to the terminal.

01

TL;DR

roam-code logoChoose roam-code if…

Agent-assisted coding: reduce token usage and tool calls by using structured graph queries

fast-agent logoChoose fast-agent if…

Rapid development and testing of sophisticated multimodal AI agents and workflows.

02

Side-by-Side Comparison

Field
roam-code logoroam-code
fast-agent logofast-agent
Category
Multi-Agent
Dev Tooling
Stars
★ 466
★ 3.8k
License
MIT
Apache-2.0
Updated
5d ago
2d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
ai-coding, ai-tools, architecture
acp, agent, agent-framework
03

Features

roam-code logoroam-code
01Five core verbs (understand, retrieve, context, preflight, critique) covering ~80% of agent workflows
02Local SQLite graph index with tree-sitter parsing and git history, no API keys required
03Graph-aware retrieval with hybrid FTS5 and structural reranker
04CI-ready with SARIF output, quality gates, and GitHub Action integration
05MCP server with 120 tools for direct integration with AI coding agents
fast-agent logofast-agent
01Sophisticated multimodal Agent and Workflow creation.
02Comprehensive LLM provider support (e.g., Anthropic, OpenAI, Google, Ollama).
03Structured outputs, PDF, and Vision support.
04CLI-first with interactive terminal UI (TUI-style) and live streaming responses.
05Advanced agentic workflows like Chain, Parallel, MAKER, and Agents As Tools.
04

Use Cases

roam-code logoroam-code
↳Agent-assisted coding: reduce token usage and tool calls by using structured graph queries
↳Architecture governance: health scoring, CI quality gates, budget enforcement, and fitness functions
↳Safe refactoring: blast radius analysis, affected test detection, and pre-change safety checks
fast-agent logofast-agent
↳Rapid development and testing of sophisticated multimodal AI agents and workflows.
↳Diagnosing and tuning agent applications, including those requiring human input.
↳Implementing advanced agentic patterns for error reduction or complex task decomposition.
05

Best For

roam-code logoroam-code
Code AssistantDev Tooling
fast-agent logofast-agent
TrendingMulti-AgentDev Tooling
FAQ

FAQ

What is the difference between roam-code and fast-agent?
Both roam-code and fast-agent are in the Multi-Agent category. roam-code has 466 stars, while fast-agent has 3.8k stars.
Which is better, roam-code or fast-agent?
The best choice depends on your use case. Choose roam-code if Agent-assisted coding: reduce token usage and tool calls by using structured graph queries, and fast-agent if Rapid development and testing of sophisticated multimodal AI agents and workflows..
Is roam-code free or open source?
Yes, roam-code is open source on GitHub (MIT).
Is fast-agent free or open source?
Yes, fast-agent is open source on GitHub (Apache-2.0).
→

Related

Alternatives to roam-code →Alternatives to fast-agent →roam-code details →fast-agent details →
© 2026 AgentIndex.app|Built by a 10-year iOS Developer.
QYSGitHubBuy me a coffee ☕

Browse by Category

Code AssistantWorkflow AutomationRAG / Knowledge BaseMulti-AgentBrowser AutomationLLM InfraDev ToolingObservability

Not affiliated with Anthropic, OpenAI or Microsoft.