Side by side
Harmony AI Agent Builder vs Portia
Both stand on ai agent builders. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid APIWeb
Harmony provides visual workflow design, governed agent access, and multiple employee channels. Its fit depends on deployment scope and a custom quotation.
Visit Harmony AI Agent Builder Paid API
Portia focuses on agent workflows with planned actions, human checkpoints, audit records, and evaluation. Its demo and SDK are available, while the homepage leaves pricing and trial terms unspecified.
Visit PortiaThe facts
| Harmony AI Agent Builder | Portia | |
|---|---|---|
| Free plan | Not published | Not published |
| Open source | Not published | Not published |
| Runs on | API, Web | API |
| Lowest paid plan | Free or on request | Not published |
| Plans published | 1 | None |
| Maker | Not published | Not published |
| Website | harmony.io | portia.live |
| On ai agent builders | #27 of 36 | #31 of 36 |
Harmony AI Agent Builder: what it does well
- No-code workflow builder
- Runs across Slack, Teams, email, and portal
- Sandbox simulations before launch
- Versioning and rollback controls
- Prebuilt employee-service agents
What to know first
- Pricing is on request
- No generic list price
- No free plan or trial stated
- Loops handle up to 20 parallel items
Portia: what it does well
- Agents share their plans before taking action.
- Teams can require human review or authorisation.
- Readable records include who triggered agent processes.
- Evaluation framework helps check production agents against team standards.
- Connects to 1,000+ cloud and MCP tools.
What to know first
- Homepage does not state prices or trial terms.
- Platform is listed as API.
- The listed audience is developers building agents for regulated environments.
Alternatives to Harmony AI Agent Builder Alternatives to Portia The whole list