> ## Documentation Index > Fetch the complete documentation index at: https://docs.fuseai.com/llms.txt > Use this file to discover all available pages before exploring further. # Suggest values for a free-text search field > Type-ahead vocabulary for the free-text people filters — `company`, `website`, `location`, `region`, `title`, `school`, `skill` — the same suggestions the product's search UI offers. Send the returned `name` verbatim as the filter value; the values are lower-cased exactly as the provider stores them. The enum-backed fields are served in full by GET /prospects/filter-options instead. Only `field=region` rows carry `countries`, listing the countries that region name appears in, likeliest first, so identically named regions can be told apart. Free: no credits, no provider spend beyond the type-ahead call. Errors: - `422` `VALIDATION_FAILED` — The request failed the declared schema; `param` names the offending key and `message` quotes the rule it broke. - `429` `RATE_LIMITED` — Per-token rate limit for this bucket exhausted; retry after the window in the RateLimit-Reset header. - `500` `UNEXPECTED_ERROR` — The request failed inside the service; nothing was billed and the request_id identifies the failure. Requires one of the following token scopes: search. ## OpenAPI ````yaml /openapi.json get /business/prospects/autocomplete openapi: 3.1.0 info: title: Fuse Business API version: 1.0.0 description: >- External API for lists, campaigns, prospect search and contacts. Authenticate with your API token as HTTP Basic. All paths are under /api/v1. servers: - url: https://api.tryfuse.ai/api/v1 description: Production security: - basicAuth: [] tags: - name: Lists - name: Custom columns - name: Smart columns - name: Exports - name: Campaigns - name: Knowledge hubs - name: Analytics - name: Website intent - name: Account - name: Prospect search - name: Campaign steps - name: Scheduled sends - name: Campaign templates - name: Agents - name: Research - name: Company search - name: Saved searches - name: Folders - name: Contacts paths: /business/prospects/autocomplete: get: tags: - Prospect search summary: Suggest values for a free-text search field description: >- Type-ahead vocabulary for the free-text people filters — `company`, `website`, `location`, `region`, `title`, `school`, `skill` — the same suggestions the product's search UI offers. Send the returned `name` verbatim as the filter value; the values are lower-cased exactly as the provider stores them. The enum-backed fields are served in full by GET /prospects/filter-options instead. Only `field=region` rows carry `countries`, listing the countries that region name appears in, likeliest first, so identically named regions can be told apart. Free: no credits, no provider spend beyond the type-ahead call. Errors: - `422` `VALIDATION_FAILED` — The request failed the declared schema; `param` names the offending key and `message` quotes the rule it broke. - `429` `RATE_LIMITED` — Per-token rate limit for this bucket exhausted; retry after the window in the RateLimit-Reset header. - `500` `UNEXPECTED_ERROR` — The request failed inside the service; nothing was billed and the request_id identifies the failure. Requires one of the following token scopes: search. operationId: autocompleteProspectSearchField parameters: - name: field in: query required: true description: >- Which free-text vocabulary to suggest from: `company`, `website`, `location`, `region`, `title`, `school` or `skill` (`region` suggestions also carry the `countries` they appear in). schema: type: string enum: - company - website - location - region - title - school - skill description: >- Which free-text vocabulary to suggest from: `company`, `website`, `location`, `region`, `title`, `school` or `skill` (`region` suggestions also carry the `countries` they appear in). - name: q in: query required: true description: Text fragment to complete (1-100 chars). schema: type: string minLength: 1 maxLength: 100 description: Text fragment to complete (1-100 chars). responses: '200': description: Success headers: RateLimit-Limit: schema: type: integer description: Requests permitted in the current window. RateLimit-Remaining: schema: type: integer description: Requests remaining in the current window. RateLimit-Reset: schema: type: integer description: Seconds until the current window resets. content: application/json: schema: type: object required: - field - suggestions properties: field: type: string enum: - company - website - location - region - title - school - skill description: Echo of the requested field. suggestions: type: array items: type: object required: - name properties: name: type: string description: The canonical value to send as the filter value. countries: type: array items: type: string description: >- Only on `field=region` rows: the countries this region name appears in, likeliest first. example: field: region suggestions: - name: california countries: - united states - name: baja california countries: - mexico - name: baja california sur countries: - mexico '400': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '401': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '402': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '403': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '409': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '422': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '429': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' '500': description: Error content: application/json: schema: $ref: '#/components/schemas/Error' security: - basicAuth: [] components: schemas: Error: type: object properties: error: type: object properties: code: type: string message: type: string param: type: - string - 'null' doc_url: type: - string - 'null' request_id: type: - string - 'null' required: - code - message required: - error securitySchemes: basicAuth: type: http scheme: basic description: >- Your API token (`af_…`) as the Basic-auth username, with an empty password. ````