# Knouds

## Docs

- [Knouds Business tier: access and verification](https://docs.knouds.ai/account/business.md): The Business tier requires an approval process before checkout. Learn what information to submit, what happens during review, and what the tier unlocks.
- [How Knouds credits work: plans, top-ups, and trials](https://docs.knouds.ai/account/credits.md): Credits are deducted each time a node executes. Learn how plan credits, top-up credits, and trial grants differ, and where to check your balance.
- [Knouds pricing plans: Free, Pro, and Business tiers](https://docs.knouds.ai/account/plans.md): Compare Free, Pro, and Business plans, understand what each tier unlocks, and learn how to upgrade or switch to annual billing for a credit bonus.
- [Authenticate requests to the Knouds API with API keys](https://docs.knouds.ai/api/authentication.md): Generate an API key, pass it via the x-api-key header, and understand the scope hierarchy that controls which endpoints your key can reach.
- [Knouds API error codes: status codes and responses](https://docs.knouds.ai/api/errors.md): Every non-2xx response includes a machine-readable code field. Learn what each status and code means and how to recover from common failures.
- [Knouds REST API overview: endpoints and base URL](https://docs.knouds.ai/api/overview.md): The Knouds REST API lets you trigger deployed workflows and individual AI models programmatically from any language or CI pipeline.
- [POST /api/models/:internalName/run — run a model directly](https://docs.knouds.ai/api/run-model.md): Invoke a single registered AI model by its internal name without building a full workflow, using admin-scope API keys for direct model access.
- [POST /api/workflows/:slug/run — execute a workflow](https://docs.knouds.ai/api/run-workflow.md): Run any deployed Knouds workflow by its slug, passing inputs as a JSON object and receiving results, media URLs, and cost metadata in return.
- [Workflow schema endpoints: inspect inputs and outputs](https://docs.knouds.ai/api/schemas.md): Use the Knouds schema endpoints to discover what inputs a workflow expects and what outputs it produces before calling the run endpoint.
- [Workflow management API: create, update, and delete](https://docs.knouds.ai/api/workflows.md): Manage Knouds workflows programmatically with admin-scope API keys: list, create, update, move to folders, and delete using the full workflow JSON.
- [Knouds core concepts: nodes, edges, and workflows](https://docs.knouds.ai/concepts.md): The mental model behind Knouds: how workflows, nodes, edges, handles, execution order, deployment, and credits fit together into an AI pipeline editor.
- [Knouds API keys: generate, scope, and rate limits](https://docs.knouds.ai/integrations/api-keys.md): Generate API keys in Settings, understand the three access scopes, and keep your workflows secure with rate-limited per-user keys.
- [Integrate Knouds workflows into your backend systems](https://docs.knouds.ai/integrations/webhooks.md): Trigger deployed Knouds workflows from your backend over HTTP. Includes Node.js and Python examples and covers async integration patterns.
- [What is Knouds? Visual AI Pipeline Builder](https://docs.knouds.ai/introduction.md): Knouds is a no-code canvas for building AI media pipelines. Connect image, video, audio, and LLM nodes visually, then deploy your workflow as a REST API.
- [AI generator nodes: image, video, and music in Knouds](https://docs.knouds.ai/nodes/generators.md): How to use the Image Generator, Video Generator, and Music Generator nodes in Knouds, including parameters, model selection, and output handles.
- [Request Input and Response Output: workflow API contract](https://docs.knouds.ai/nodes/input-output.md): How Knouds Request Input and Response Output nodes define your workflow's API schema, accepted fields, and the data returned to callers.
- [Knouds node types: canvas building blocks explained](https://docs.knouds.ai/nodes/overview.md): Every node available on the Knouds canvas explained — from AI generators and LLM assistants to utility nodes, inputs, and outputs.
- [Utility nodes: HTTP Request, List, Text Box, and more](https://docs.knouds.ai/nodes/utilities.md): Reference for the HTTP Request, List, Text Box, Sticky Note, and Media Upload nodes in Knouds — what they do, their parameters, and practical use cases.
- [Get started with Knouds in under five minutes](https://docs.knouds.ai/quickstart.md): Create an account, build your first image generation workflow on the canvas, run it, and deploy it as a callable REST API endpoint — step by step.
- [Navigate, build, and organize on the Knouds canvas](https://docs.knouds.ai/workflows/canvas.md): How to navigate, build, and manage workflows on the Knouds canvas — panning, zooming, adding nodes, connecting handles, and saving your work.
- [Deploy a Knouds workflow as a callable API endpoint](https://docs.knouds.ai/workflows/deploy.md): Turn any Knouds workflow into a callable REST API endpoint by wiring Request Input and Response Output nodes, then calling it with your API key.

## OpenAPI Specs

- [openapi](https://docs.knouds.ai/api-reference/openapi.json)