# Developer Platform

## Build with equity, together

Carta’s API platform unlocks equity data across private markets – empowering customers and partners with their ownership.

## Streamlined onboarding and consolidated resources

## Self-service test access

Leverage Carta test data during implementation easily through our developer portal.

## Developer support

Access documentation, guidance and resources to help you every step of the way.

## Reference guides

Get onboarding tips, common integration use cases and implementation patterns based on your needs.

## Designed to support your team’s unique use cases

In the last year, Carta debuted four API suites for ecosystem partners:

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Issuer API\
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Embed company data into platforms such as HRIS, law firm portals, and financial services.\
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View API →](https://docs.carta.com/carta/reference/v1alpha1issuerslistissuers/)

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Investor API\
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Retrieve cap table and holdings data to monitor and report on investments.\
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View API →](https://docs.carta.com/carta/reference/v1alpha1investorslistfirms/)

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Portfolio API\
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Use data for personal wealth management, estate planning, and other financial needs.\
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View API →](https://docs.carta.com/carta/reference/v1alpha1portfoliosissuerslistportfolios/)

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Launch API\
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Seamlessly create and set up new Carta accounts.\
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View API →](https://docs.carta.com/carta/reference/v1alpha1draftissuerscreatedraftissuer/)

## See how others have built with our platform

## Automating Carta cap table setup

Stripe Atlas uses the Launch API to automate Carta cap table onboarding post-incorporation.

[Read article](/content/uk/en/product-updates/carta-stripe-atlas-api-partnership/index.html)

## Rippling Simplifying compensation management

Rippling uses the Issuer API to consolidate compensation data for efficient HRIS reporting and planning.

[Read article](/content/uk/en/blog/rippling-carta-compensation/index.html)

## Simplifying client management and cap table creation with Cooley

Cooley uses the Issuer API and Launch API to streamline cap table creation and client management.

[Read article](/content/uk/en/product-updates/cooley-api-carta-integration/index.html)

## Improving users’ wealth management experience

Compound uses the Portfolio API to help clients make the best possible decisions concerning their financial well-being.

[Read article](/content/uk/en/product-updates/compound-api-carta-integration/index.html)

## Providing compensation transparency with ChartHop

ChartHop uses the Issuer API to empower HR admin in compensation decisions and provide employee visibility.

[Read article](/content/uk/en/product-updates/compound-api-carta-integration/index.html)

## Getting started

What is the timing for getting API access?

Access to our playground environment is self service using the [Quickstart documentation here](https://docs.carta.com/api-platform/docs/quickstart-guide). Production access requires Carta approval but will be automatic for Carta customers starting Q3 2026.

Where can I find API information to learn more?

Check out our [API Documentation](https://docs.carta.com/carta/docs/?utm_campaign=572900214-ww-general-bd_apidocs_landingpage&utm_medium=bdreferral&utm_source=bd&utm_content=landingpage) to explore Carta’s developer platform more in-depth. The [API Reference](https://docs.carta.com/carta/reference/v1alpha1draftissuerscreatedraftissuer), [Quickstart Guide](https://docs.carta.com/carta/docs/quickstart-guide), and [Playground Environment](https://docs.carta.com/carta/docs/playground-environment) are great starting points.