> ## Documentation Index > Fetch the complete documentation index at: https://docs.intentleads.si/llms.txt > Use this file to discover all available pages before exploring further. # Add a website > [Websites](/guides/websites): the people we identify among a site's US visitors arrive as leads. Each is charged once per billing month at intent prices, from your balance, up to `monthly_cap`. Returns the install snippet once the site is connected (a few seconds). **Admin key required.** Standard keys get `403 admin_key_required`. ## OpenAPI ````yaml /api-reference/openapi.json post /api/v1/sites openapi: 3.1.0 info: title: Intent Leads API version: '1.0' description: >- The Intent Leads API finds B2B people actively researching the topics you sell into, and exports them with contact details into your own tools. **Authentication.** Send an API key as a bearer token: `Authorization: Bearer il_live_…`. Standard keys work with everything except billing, team and key management, which need an admin key. **Organizations and workspaces.** An organization holds the balance, invoices and people; lanes, leads, exports, lists, websites and webhooks live in its workspaces. A workspace key works in its workspace. An organization key manages workspaces, billing and people, and works in any of its workspaces with the header `Intent-Leads-Workspace: `. **What costs money.** Only `POST /api/v1/exports` with `"dry_run": false` spends your [balance](/guides/billing) (and website visitors as they're identified). Quotes, counts, checks, estimates, samples and re-downloads are free. **Errors.** Every error is JSON: `{"error": "code", "message": "Plain-English explanation"}`. Codes are stable; messages may change. **Conventions.** JSON by default. Dates are `YYYY-MM-DD` and timestamps ISO 8601, all in UTC. Lane codes (`L1`) are case-insensitive. servers: - url: https://intentleads.si security: - bearerAuth: [] tags: - name: Exports description: Quote (free) and buy new people from your lanes, then download them. - name: Leads description: Pull and re-download the leads you've exported, and list deliveries. - name: Lanes description: >- Create, inspect and tune lanes: keywords plus the companies and roles you want. - name: Topics description: >- Topics we already track: live at once, with history. Use them before adding new keywords. - name: Keywords description: >- Add and remove a lane's keywords: existing topics, or new ones approved as their own topic. - name: Checks description: >- Free lane checks that size every filter step over 14 days, plus quick topic signals. - name: Company list description: >- The target-company list your lanes can narrow to or use instead of industries. - name: Exclusions description: Companies and people left out of every lane, before anything is bought. - name: Suppressions description: >- People you exported who later asked to be removed, by API or pushed to your webhook. - name: Webhooks description: >- Endpoints that receive events as they happen (removals, website visitors), signed, each with its own events, tests and delivery log. - name: Websites description: Identify the people who visit your websites. - name: Billing description: >- Your prepaid balance, prices and cost estimates (any key); top-ups and the monthly top-up (admin keys). - name: Team description: Members and invite links. Admin keys only. - name: Workspaces description: >- One workspace per client, all paid from your balance, with an optional monthly budget each; hand one over to the client. - name: API keys description: Create, rename, rotate and revoke API keys. Admin keys only. - name: Account description: Check which organization a key belongs to, and rename it. - name: Reference description: Valid values for lane filters. - name: Activity description: A feed of changes and events in your organization. paths: /api/v1/sites: post: tags: - Websites summary: Add a website description: >- [Websites](/guides/websites): the people we identify among a site's US visitors arrive as leads. Each is charged once per billing month at intent prices, from your balance, up to `monthly_cap`. Returns the install snippet once the site is connected (a few seconds). **Admin key required.** Standard keys get `403 admin_key_required`. operationId: createSite parameters: - $ref: '#/components/parameters/Workspace' requestBody: required: true content: application/json: schema: type: object properties: domain: type: string monthly_cap: type: integer minimum: 1 description: Most people identified per billing month. Default 500. name: type: string required: - domain example: domain: example.com monthly_cap: 500 name: Main site responses: '201': description: Added. content: application/json: schema: type: object properties: code: type: string kind: type: string enum: - visitors name: type: string domain: type: string status: type: string enum: - setup - active - capped - paused description: >- `setup` (not connected yet), `active`, `capped` (paused at the cap or because the plan ran out) or `paused`. monthly_cap: type: integer identified_this_period: type: integer period: type: - object - 'null' install_snippet: type: - string - 'null' setup_error: type: - string - 'null' note: type: string required: - code - kind - name - domain - status - monthly_cap - identified_this_period - period - install_snippet - setup_error - note example: code: V1 kind: visitors name: Main site domain: example.com status: active monthly_cap: 500 identified_this_period: 137 period: start: '2026-11-09' end: '2026-12-09' install_snippet: setup_error: null note: >- Identified visitors arrive as leads on this site's lane (GET /api/v1/leads?lane=V1&since=last). Each person is charged once per billing month on the intent meter of your balance, up to monthly_cap. '400': description: Bad domain or cap. content: application/json: schema: $ref: '#/components/schemas/Error' examples: invalid_domain: value: error: invalid_domain message: domain must be a website address like example.com. '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/AdminKeyRequired' '409': description: Already set up. content: application/json: schema: $ref: '#/components/schemas/Error' examples: site_exists: value: error: site_exists message: example.com is already set up. '500': $ref: '#/components/responses/InternalError' components: parameters: Workspace: name: Intent-Leads-Workspace in: header required: false description: >- Only with an **organization** key: the workspace to act in (its id; `?workspace=` works too). Lanes, leads, exports, lists, websites and webhooks live in workspaces. Without it, an organization key acts in its only workspace, or gets `400 workspace_required` (with the list of workspaces) when it has several. Workspace keys don't need it. On keys, team and activity it switches from the organization's own to that workspace's. schema: type: string format: uuid example: 0a0e5135-a046-4f8c-8ca9-33de7cf9e54d schemas: Error: type: object properties: error: type: string example: lane_not_found description: Stable machine-readable code, e.g. `lane_not_found`. message: type: string example: No lane L9. description: Plain-English explanation you can show to a person. required: - error - message description: Every error has this shape. responses: Unauthorized: description: Missing, malformed, unknown or revoked API key. content: application/json: schema: $ref: '#/components/schemas/Error' examples: unauthorized: value: error: unauthorized message: 'Send a valid API key as: Authorization: Bearer il_live_…' AdminKeyRequired: description: This endpoint needs an admin key. content: application/json: schema: $ref: '#/components/schemas/Error' examples: admin_key_required: value: error: admin_key_required message: >- This needs an admin API key. Owners create one under Settings → API keys. InternalError: description: >- Unexpected server error. Safe to retry reads; retry an export only with the same `idempotency_key`. content: application/json: schema: $ref: '#/components/schemas/Error' examples: internal_error: value: error: internal_error message: Something went wrong. Try again. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: il_live_… description: >- An Intent Leads API key, e.g. `il_live_` followed by 32 letters and digits. Create one on the API and CLI page of the dashboard. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.