Tool
Composio
Free tier: Yes · 100,000 tool calls per month.
From: $29/mo
Checked October 16, 2026
- Strength. The Hobby plan includes 100,000 tool calls per month for connecting agents to third-party apps.
- Weakness. The next plan starts at $29 per month once you need more than the Hobby tool-call allotment.
Checked October 15, 2026
Connects agents to third-party apps and tools. Docs and a $0 Hobby plan were checked; not installed here.
Composio is a tool-use layer between agents and third-party apps. The pricing page we crawled included Hobby / $0 / no-credit-card language. We checked docs and the October 15, 2026 CLI release, and we did not install it or create an account.
Best for
- Agents that need many SaaS tools without custom OAuth for each one
- Teams evaluating a hosted tool layer with an open-source SDK
Not ideal for
- A single API you already call directly
- A local hands-on test — we did not run one
What we checked
Docs checked means we opened the official site and the pricing and docs URLs on this page. We did not run a successful local install, so this is not a smoke test.
No local install attempted (SaaS/desktop/extension or install not feasible without account).
Related tools
Browser Use
Open-source Python agent that controls a browser. We imported the package locally; no model call.
Smoke-testedOpen sourceNew releaseAgentChecked October 15, 2026
Free tier: Yes · Pay as you go after a free start. No monthly subscription.
From: Check pricing (opens in a new tab)
Checked October 16, 2026
- Strength. We imported browser-use 0.13.11, which is built for agents that open pages, click, and type.
- Weakness. You bring your own browser and model, and the docs bill cloud stealth browsers separately from the library.
Firecrawl
Turns websites into markdown for LLMs. Open-source repo plus a cloud API with a free plan.
Docs checkedOpen sourceChecked October 15, 2026
Free tier: Yes · 1,000 credits per month.
From: Check pricing (opens in a new tab)
Checked October 16, 2026
- Strength. The free cloud plan includes 1,000 credits per month to turn pages into markdown, and the repo is open source.
- Weakness. Paid cloud samples on the page included about $16 and $75, and a monthly starting price was not confirmed.
Tavily
Search API for agents that need web results. Pricing page showed a $0 option; not installed here.
Docs checkedChecked October 15, 2026
Free tier: Yes · 1,000 API credits per month.
From: $30/mo
Checked October 16, 2026
- Strength. The free plan includes 1,000 API credits per month for agent web search.
- Weakness. The next plan starts at $30 per month, and the API returns search results rather than clicking through a logged-in site.