Best Capacity alternatives

Comparison

Tool	Price from	Free plan	Category
Capacity	25 USD/mo	trial	Website & app builders
LangChain	39 USD/mo	yes	Website & app builders
Gemini Enterprise Agent Platform	0,75 USD	?	Website & app builders
Emergent	17 USD/mo	yes	Website & app builders
Mastra	250 USD/mo	yes	Website & app builders
Pipedream	99 USD/mo	yes	Website & app builders
Taskade	10 USD/mo	yes	Website & app builders
Langflow	not listed	yes	Website & app builders
Bubble	29 USD/mo	yes	Website & app builders

Each alternative in short

1. LangChain

Open agent engineering platform for building, testing, deploying and monitoring AI agents, aimed at engineering teams.

Yes, there is a free plan. Developer plan: free, 1 seat, up to 5k base traces per month, then pay-as-you-go, community support. Open source frameworks are free to use.

2. Gemini Enterprise Agent Platform

Google Cloud platform for developers to build, scale, govern and optimize AI agents on Gemini models.

The vendor does not state this clearly on the homepage or pricing page.

3. Emergent

AI platform that turns plain-language descriptions into working web and mobile apps, for builders without coding skills.

Yes, there is a free plan. 10 free monthly credits with access to core platform features, including building elegant web and mobile experiences.

4. Mastra

Open-source TypeScript framework for building, observing and deploying AI agents, workflows and tools, from prototype to production.

Yes, there is a free plan. Free open source framework (Apache 2.0) to build and host agents anywhere; Starter plan with 100K observability events, 24 CPU hours and 15-day data retention.

5. Pipedream

Managed integration layer that lets AI agents and apps call 10,000+ prebuilt tools and 3,000+ APIs with per-user auth handled for them.

Yes, there is a free plan. Free plan: full access to build and test in development, all features, 3,000+ connectors, unlimited team members, community support. Production use requires Startup.

6. Taskade

Turns business processes into live apps, AI agents and automated workflows, for teams building CRMs, dashboards and client portals.

Yes, there is a free plan. A free plan is available with sign-up; the specific free allowance is not stated in the provided text.

7. Langflow

Low-code builder for AI agents, RAG apps and MCP servers, with visual flows you can extend in Python.

Yes, there is a free plan. Get Started for Free; a free cloud account is offered for deployment. Open source version available on GitHub.

8. Bubble

No-code platform for building web and mobile apps, with AI prompting and visual editing, for founders, agencies and teams.

Yes, there is a free plan. Build any app for free in the development version; upgrading to Starter is needed to launch a live website and custom domain.

FAQ