---
title: "APIs"
description: "All Nexora AI interfaces at a glance - with specification, examples and use cases."
url: "https://nexora.apim.eu/apis"
image: "https://nexora.apim.eu/_og/d/c_Ocean.takumi,title_APIs,description_~QWxsIE5leG9yYSBBSSBpbnRlcmZhY2VzIGF0IGEgZ2xhbmNlIC0gd2l0aCBzcGVjaWZpY2F0aW9uLCBleGFtcGxlcyBhbmQgdXNlIGNhc2VzLg,props_eyJ0aGVtZSI6eyJtb2RlIjoiZGFyayIsImNvbG9ycyI6eyJwcmltYXJ5IjoiIzM5RkYxNCJ9fX0,p_Ii9hcGlzIg,s_7ARZGBkpaxV6Rla5.png"
---

## API Catalog

Six interfaces cover the enterprise AI operations business. Each comes with a complete OpenAPI specification, example payloads, and a description of its use cases.

## [Getting Started by Use Case](#getting-started-by-use-case)

| I want to …                                                              | Responsible API               |
| :----------------------------------------------------------------------- | :---------------------------- |
| generate and publish a catalog entry                                     | Agent Catalog                 |
| maintain, import, and attach artifacts to agent deployments              | Agent Deployments             |
| accept access requests and match capability profiles                     | Access & Onboarding Requests  |
| schedule evaluation sessions and process confirmations and cancellations | Evaluation Sessions           |
| determine a cost/ROI estimate or comparable deployments                  | Cost & ROI Estimation         |
| settle usage chargebacks and retrieve invoices                           | Usage Chargeback & Settlement |

All APIs share the same error format, the same authentication, and the same pagination. Learn one, and you know them all.

![Access & Onboarding Requests](https://nexora.apim.eu/_core/api/v3/apis/access-requests/images/icon/raw)

## Access & Onboarding Requests

1.0.0

Accepts access requests, maintains capability profiles and scores traceably how well the two match.

[View Specification](https://nexora.apim.eu/apis/access-requests/docs)

![Agent Catalog](https://nexora.apim.eu/_core/api/v3/apis/agent-catalog/images/icon/raw)

## Agent Catalog

1.0.0

Turns structured agent metadata into a finished catalog entry and publishes it to the internal governance catalog.

[View Specification](https://nexora.apim.eu/apis/agent-catalog/docs)

![Agent Deployments](https://nexora.apim.eu/_core/api/v3/apis/agent-deployments/images/icon/raw)

## Agent Deployments

1.0.0

The system of record for every deployed AI agent, including artifacts and industry-standard metadata import.

[View Specification](https://nexora.apim.eu/apis/agent-deployments/docs)

![Cost & ROI Estimation](https://nexora.apim.eu/_core/api/v3/apis/cost-estimation/images/icon/raw)

## Cost & ROI Estimation

1.0.0

Delivers a cost/ROI indication from comparable deployments, usage indices and agent features - with a range and confidence score.

[View Specification](https://nexora.apim.eu/apis/cost-estimation/docs)

![Evaluation Sessions](https://nexora.apim.eu/_core/api/v3/apis/evaluation-sessions/images/icon/raw)

## Evaluation Sessions

1.0.0

Schedules single and group evaluation sessions, tracks confirmations and cancellations, and collects feedback.

[View Specification](https://nexora.apim.eu/apis/evaluation-sessions/docs)

![Usage Chargeback & Settlement](https://nexora.apim.eu/_core/api/v3/apis/chargeback-settlement/images/icon/raw)

## Usage Chargeback & Settlement

1.0.0

Settles usage chargeback after a billing period and provides the internal invoice.

[View Specification](https://nexora.apim.eu/apis/chargeback-settlement/docs)

## Ready for Your First Integration?

Register, create an application, and generate your first catalog entry in under ten minutes.

[Request Access](https://nexora.apim.eu/getting-started)[View API Catalog](https://nexora.apim.eu/apis)