# Nexio

> Nexio placement inference API for quote comparison, recommendation workflows, and coverage gap analysis.

## Docs

- [Authentication](https://docs.usenexio.com/api-reference/authentication.md): API key authentication for the Nexio API.
- [Create Engine](https://docs.usenexio.com/api-reference/engines/create-engine.md): Create a new placement or entity-analysis engine in your organization.
- [Get Engine](https://docs.usenexio.com/api-reference/engines/get-engine.md): Fetch metadata for a single engine by slug.
- [Get Engine Config](https://docs.usenexio.com/api-reference/engines/get-engine-config.md): Fetch the active configuration for an engine.
- [Get Run Status](https://docs.usenexio.com/api-reference/engines/get-run-status.md): Poll the status, solution, and metadata for a previously submitted run.
- [List Engines](https://docs.usenexio.com/api-reference/engines/list-engines.md): List all engines in your organization, including slug, kind, and status.
- [Submit Run](https://docs.usenexio.com/api-reference/engines/submit-run.md): Submit a payload for asynchronous processing. Returns a run ID for polling or webhook delivery.
- [Update Engine](https://docs.usenexio.com/api-reference/engines/update-engine.md): Update engine metadata such as name, description, or status.
- [Update Engine Config](https://docs.usenexio.com/api-reference/engines/update-engine-config.md): Replace an engine's active configuration. The full config is validated before swap.
- [Validate Engine Config](https://docs.usenexio.com/api-reference/engines/validate-engine-config.md): Dry-run a configuration change to surface validation errors without modifying the live engine.
- [API Reference](https://docs.usenexio.com/api-reference/introduction.md): Reference documentation for the Nexio REST API.
- [Create Webhook Endpoint](https://docs.usenexio.com/api-reference/webhooks/create-webhook.md): Register a new webhook endpoint to receive run.completed and other event deliveries.
- [Delete Webhook Endpoint](https://docs.usenexio.com/api-reference/webhooks/delete-webhook.md): Delete a webhook endpoint. Pending and future deliveries are cancelled.
- [List Webhook Deliveries](https://docs.usenexio.com/api-reference/webhooks/list-webhook-deliveries.md): List recent delivery attempts for a webhook endpoint, including HTTP status, latency, and retry state.
- [List Webhook Endpoints](https://docs.usenexio.com/api-reference/webhooks/list-webhooks.md): List all webhook endpoints configured for your organization.
- [Webhooks Overview](https://docs.usenexio.com/api-reference/webhooks/overview.md): Push-based delivery of terminal run events via signed callbacks.
- [Rotate Webhook Secret](https://docs.usenexio.com/api-reference/webhooks/rotate-webhook-secret.md): Rotate the HMAC signing secret for a webhook endpoint. The new secret is returned once.
- [Update Webhook Endpoint](https://docs.usenexio.com/api-reference/webhooks/update-webhook.md): Update a webhook endpoint's URL, subscribed events, or active status.
- [Key Concepts](https://docs.usenexio.com/concepts.md): Core concepts behind Nexio's agentic infrastructure.
- [Engine versions](https://docs.usenexio.com/concepts/engine-versions.md): Pin an engine version so your integration behaves consistently across releases.
- [Headless Engine Setup](https://docs.usenexio.com/guides/headless-engine-setup.md): Create and configure an engine entirely via API, validate its config, and submit your first run.
- [Integration Guide](https://docs.usenexio.com/guides/integration.md): How to structure provider offerings, handle multi-provider input, and consume results.
- [Upgrading engine versions](https://docs.usenexio.com/guides/upgrading-engine-versions.md): How to stay stable, ride improvements, and adopt breaking changes safely.
- [Introduction](https://docs.usenexio.com/introduction.md): Agentic infrastructure for placement, entity analysis, and beyond.

## OpenAPI Specs

- [openapi](https://docs.usenexio.com/openapi.yaml)