aci

★ 4.9k

gum

★ 80

aci vs gum

Q: Which is better, aci or gum?

By GitHub stars, aci has more community adoption, but the best choice depends on your specific use case.

aci: ACI.dev is an open-source tool-calling platform designed to connect over 600 tools to any AI agent or agentic IDE. It provides intent-aware tool access with multi-tenant authentication, granular permissions, and dynamic discovery through a Unified MCP server or a lightweight SDK.; gum: gum is a single binary CLI tool designed to provide a safer and more efficient interface for agents and humans to interact with Google APIs. It features an embedded API catalog, local authentication helpers, and risk gates, significantly reducing the complexity and token usage associated with direct Google API interactions.

TL;DR

aciAPI Integration · ★ 4.9k

When to choose:

You want 600+ pre-built integrations with built-in OAuth and secrets management, so you do not write a client per service.
You want dynamic tool discovery so tool definitions stay out of the context window.
You want to use it as an MCP server or through Python and TypeScript SDKs, with no framework lock-in.

When to skip:

You want a single MCP server to install: the MCP server lives in a separate repository, and self-hosting runs a backend plus a portal.
You do not want user credentials and tool calls to pass through a third party: that is how the managed service works.
You need a very actively developed project: our data shows the last push on 2026-05-28.

Read aci full review →

gumAPI Integration · ★ 80

Allowing AI agents to safely inspect and interact with Google Workspace services like Gmail, Drive, and Calendar.

Read gum full review →

Side-by-Side Comparison

Field

aci

gum

Features

aci

01600+ Pre-built Integrations

02Flexible Access Methods (MCP server or SDK)

03Multi-tenant Authentication

04Enhanced Agent Reliability

05Framework & Model Agnostic

gum

01Provides a safer control surface for Google APIs with built-in risk gates and confirmations.

02Includes an embedded Google API catalog of 222 operations across 32 services.

03Manages local authentication (OAuth, ADC, API keys) without exposing tokens in prompts.

04Optimizes output shaping and reduces MCP-layer tokens by over 80% for agent interactions.

05Operates as both a terminal CLI and an MCP stdio server for agent integration.

Use Cases

aci

↳VibeOps: Automate devOps by letting your agentic IDE access Vercel, Supabase, Cloudflare, Sentry and more to ship live products.

↳Personal Assistant Chatbots: Build chatbots that can search the web, manage calendars, send emails, interact with SaaS tools, etc.

↳Research Agent: Conducts research on specific topics and syncs results to other apps (e.g., Notion, Google Sheets).

gum

↳Allowing AI agents to safely inspect and interact with Google Workspace services like Gmail, Drive, and Calendar.

↳Automating tasks and workflows involving various Google APIs (e.g., Admin, Vault, Google Ads) without custom tool development.

↳Securely managing and using Google API credentials in agent-driven workflows, keeping secrets out of prompts.

↳Developers and power users exploring Google API operations and making read/write/destructive calls from the command line.

Best For

aci

EssentialTrending

gum

—

FAQ

What is the difference between aci and gum?

Both aci and gum are in the API Integration category. aci has 4.9k stars, while gum has 80 stars.

Which is better, aci or gum?

The best choice depends on your use case. Choose aci if VibeOps: Automate devOps by letting your agentic IDE access Vercel, Supabase, Cloudflare, Sentry and more to ship live products., and gum if Allowing AI agents to safely inspect and interact with Google Workspace services like Gmail, Drive, and Calendar..

Is aci free or open source?

Yes, aci is open source on GitHub (Apache-2.0).

Is gum free or open source?

Yes, gum is open source on GitHub (NOASSERTION).

Cloud Infrastructure

Deploy on DigitalOcean

Host your MCP servers, Docker containers, and AI agents with $200 free credit over 60 days.

Claim $200 Free Credit

→

Alternatives to aci →Alternatives to gum →aci details →gum details →