General#
Is Circa browser-based?
Yes. Circa runs entirely in the browser. No download or installation required.
How much does Circa cost?
Circa's software is free to use, you only pay to license data based on the amount of data you use.
Data is licensed using credits. Credits are $0.95 each, with no minimum purchase.
Do credits need to be purchased before starting?
No. Circa’s Library is browsable for free. Data can be licensed in Circa's modeling tools after the model is built.
Is there a seat license or an annual contract?
No. Team workspaces are free with unlimited members.
Can colleagues, suppliers, and clients be given access?
Yes. Teams have unlimited seats, with view-only or edit access per member.
Is training included?
Yes. The Circa team is available for a call or to answer questions at any time. Reach us at contact@circa.ai
How often does the platform change?
A product update ships every two weeks.
What languages is Circa available in?
The interface is available in English and Japanese. Additional languages can be added upon request.
How does Circa differ from other LCA platforms?
Usage-based pricing that scales with the work, AI-assisted workflows, and a collaborative modeling environment.
Is there an API?
Yes. Circa's entire Library is available via API, documented at lcaapi.com. For access, contact contact@circa.ai.
Library#
Which databases are available?
ecoinvent, Carbon Minds, Agribalyse, the US Federal LCA Commons, Building Transparency's EC3, REEL LCI, and EPD Program Operators, with more being added.
Is a dataset a one-time cost, or is it charged again when reused?
One-time. Licensed data is held for a year and can be reused across as many graphs as needed within that year at no additional cost.
How much do a datasets cost?
Dataset cost varies by publisher.
What costs credits?
What data types, process boundaries and characterization methods are available?
Gesserit#
Is Gesserit actually free?
Yes. Building a graph and collaborating on it is free. Credits are only consumed when licensable data is pulled.
Can reporting be done by EN 15804 module?
Yes. Each Process in a graph can be classified by life cycle module using the +A2 preset covering A1 through D, a general phase preset, or custom categories.
Can uncertainty analysis be run?
Yes. A 10,000-run Monte Carlo completes in under 30 seconds, with uncertainty entered.
Can colleagues work on the same graph?
Yes. Collaborators can be added to a team and given view or edit access on a graph.
Alia#
What is Alia?
Circa's AI-assisted LCA tool, built for running LCAs at scale.
Does an LCA on Circa require AI?
No. LCA can be run without any AI in Gesserit. AI is built natively into Alia, and every action it takes is reviewable and editable, which keeps practitioners in control.
What does Alia need to start?
A BOM, BIM, or product image uploaded at the file upload step, or a model built from scratch. Alia structures the uploaded file into a table.
Which file types does Alia support?
.xlsx, .xls, .numbers, .csv, .pdf, .png, .jpg, .jpeg, .gif, and .webp
Which sectors are supported?
Currently, Alia offers Electronics, and building and construction. To request additional sectors to be added, reach out to the Circa team at contact@circa.ai
Can Alia's matches be overridden?
Yes. Every match is reviewable and editable.
