> ## Documentation Index
> Fetch the complete documentation index at: https://aisa.one/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> - Base URLs: models `https://api.aisa.one/v1` (Gemini GenerateContent: `https://api.aisa.one/v1beta`); data APIs `https://api.aisa.one/apis/v1`. The `servers` of each operation in https://aisa.one/openapi.yaml is authoritative.
> - Auth: `Authorization: Bearer $AISA_API_KEY`. Never print, log, or commit the key.
> - MCP (preferred for agents): `https://mcp.aisa.one/mcp`, signed in with OAuth, so there is no key to paste.
> - Agent Skill: `npx skills add AIsa-team/agent-skills --skill aisa`. Fallback with the AIsa CLI: `aisa skills install aisa`.
> - Spending: docs, https://aisa.one/models, https://aisa.one/api, `/v1/models`, and MCP `search`, `list_categories`, `get_details`, `batch_quote`, and the `account` operation are free. Quote the exact calls before running them (MCP `batch_quote`, CLI `aisa quote --json`). If the quote reports `auto_execute_eligible: true`, run it unless the user set a tighter limit or asked only for a quote. Otherwise, tell the user in one message the planned calls, the quoted price, and a total USD budget for the task, then wait for approval. Direct HTTP calls follow the stricter rule at https://aisa.one/docs/get-started/cli.md#direct-http-fallback. Do not make paid calls to test availability. Full rule: https://aisa.one/llms.txt

# Find lookalike contacts from 5-100 seed contacts

> <!-- aisa-pricing:start -->
Usage-based billing; Default request estimate: $0.1248 USD (not a fixed price). Declared unit rate: $0.000001 USD per provider_credit. Account-specific pricing and final settlement may differ.
<!-- aisa-pricing:end -->

## Request contract

* **Method and path:** POST /apis/v1/lusha/contacts-lookalike
* **Availability:** enabled
* **Request URL template:** `https://api.aisa.one/apis/v1/lusha/contacts-lookalike`
* **Runtime facts:** 4e06df17a40bff0bc4b39c3818736d6c3748778b27890dcc17931d02d4df8b4b

[Complete OpenAPI definition](https://aisa.one/docs/reference-contracts/lusha.json)

Effective request and pricing declaration (including authentication and referenced schemas):

```json theme={null}
{
  "operationId": "lusha.contacts-lookalike",
  "method": "POST",
  "path": "/apis/v1/lusha/contacts-lookalike",
  "servers": [
    {
      "url": "https://api.aisa.one"
    }
  ],
  "parameters": [],
  "security": [
    {
      "bearerAuth": []
    }
  ],
  "requestBody": {
    "content": {
      "application/json": {
        "examples": {
          "default": {
            "value": {
              "limit": 1,
              "seeds": {
                "ids": [
                  "example",
                  "example",
                  "example",
                  "example",
                  "example"
                ]
              }
            }
          },
          "minimal": {
            "value": {
              "limit": 1,
              "seeds": {
                "ids": [
                  "example",
                  "example",
                  "example",
                  "example",
                  "example"
                ]
              }
            }
          }
        },
        "schema": {
          "additionalProperties": false,
          "properties": {
            "limit": {
              "enum": [
                1
              ],
              "maximum": 1,
              "minimum": 1,
              "type": "integer"
            },
            "seeds": {
              "additionalProperties": false,
              "properties": {
                "ids": {
                  "items": {
                    "type": "string"
                  },
                  "maxItems": 100,
                  "minItems": 5,
                  "type": "array"
                }
              },
              "required": [
                "ids"
              ],
              "type": "object"
            }
          },
          "required": [
            "limit",
            "seeds"
          ],
          "type": "object"
        }
      }
    },
    "required": true
  },
  "x-aisa-status": "enabled",
  "x-aisa-pricing": {
    "cost_contract": "response_units",
    "customer_multiplier": 1.0,
    "customer_pricing": "provider_cost_multiplier",
    "default_request_estimate_usd": 0.1248,
    "estimate_source": "profile_seed",
    "evidence_source": "response_header",
    "unit": "provider_credit",
    "unit_rate_usd": 1e-06
  },
  "components": {
    "securitySchemes": {
      "bearerAuth": {
        "scheme": "bearer",
        "type": "http"
      }
    }
  }
}
```

## Cost and request rules

Usage-based billing; Default request estimate: \$0.1248 USD (not a fixed price). Declared unit rate: \$0.000001 USD per provider\_credit. Account-specific pricing and final settlement may differ.

Published reference values are not an account-specific quote or a settled charge. For endpoints supporting X-AISA-Cost-Mode: quote, obtain a free quote for your exact request before execution; reconcile the settled cost with response metadata and Usage Logs. USD amounts use 1,000,000 integer micro-USD per dollar.

* **Default request reference estimate (USD):** 0.1248
* **Declared unit rate (USD):** 1e-06
* **Billing unit:** provider\_credit
* **Cost contract:** response\_units
* **Published reference multiplier:** 1.0
* **Settlement evidence source:** response\_header


## OpenAPI

````yaml reference-contracts/lusha.json POST /apis/v1/lusha/contacts-lookalike
openapi: 3.1.0
info:
  description: ''
  title: Lusha
  version: '1'
  x-aisa-capabilities:
    idempotency: Idempotency-Key
    max_price: X-AISA-Max-Price-USD
    quote:
      header: X-AISA-Cost-Mode
      value: quote
  x-aisa-configured-paths:
    - /apis/v1/lusha/buying-group
    - /apis/v1/lusha/companies-enrich
    - /apis/v1/lusha/companies-enrich-by-id
    - /apis/v1/lusha/companies-lookalike
    - /apis/v1/lusha/companies-search
    - /apis/v1/lusha/companies-signals
    - /apis/v1/lusha/contacts-lookalike
    - /apis/v1/lusha/contacts-signals
    - /apis/v1/lusha/enrich-contacts
    - /apis/v1/lusha/people-contacts-enrich
    - /apis/v1/lusha/people-enrich
    - /apis/v1/lusha/people-phone-find
    - /apis/v1/lusha/people-search
    - /apis/v1/lusha/prospect-contacts
    - /apis/v1/lusha/search-and-enrich-contacts
    - /apis/v1/lusha/search-contacts
  x-aisa-document:
    facts_hash: 4e06df17a40bff0bc4b39c3818736d6c3748778b27890dcc17931d02d4df8b4b
    generator_version: '3'
    protocol_version: '1'
    schema_version: '1'
    composer_version: '27'
    response_pending:
      - operation_id: lusha.buying-group
        path: /apis/v1/lusha/buying-group
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.companies-enrich
        path: /apis/v1/lusha/companies-enrich
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.companies-lookalike
        path: /apis/v1/lusha/companies-lookalike
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.companies-search
        path: /apis/v1/lusha/companies-search
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.contacts-lookalike
        path: /apis/v1/lusha/contacts-lookalike
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.enrich-contacts
        path: /apis/v1/lusha/enrich-contacts
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.people-contacts-enrich
        path: /apis/v1/lusha/people-contacts-enrich
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
      - operation_id: lusha.people-search
        path: /apis/v1/lusha/people-search
        method: POST
        statuses:
          - '200'
        reason: public success response has no authoritative payload declaration
    document_hash: sha256:b56ee00124bc9278192c0cc9b35ac8c530504303968a202a98c12807a72cae7e
  x-aisa-plans:
    builder: 1
    display_plan: payg
    payg: 1
    similarweb_payg: 1
    team: 1
    version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb
  x-aisa-provider: lusha
  x-aisa-catalogs:
    lusha:
      title: Lusha
      description: ''
      x-aisa-document:
        facts_hash: 4e06df17a40bff0bc4b39c3818736d6c3748778b27890dcc17931d02d4df8b4b
        generator_version: '3'
        protocol_version: '1'
        schema_version: '1'
      x-aisa-plans:
        builder: 1
        display_plan: payg
        payg: 1
        similarweb_payg: 1
        team: 1
        version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb
      x-aisa-capabilities:
        idempotency: Idempotency-Key
        max_price: X-AISA-Max-Price-USD
        quote:
          header: X-AISA-Cost-Mode
          value: quote
servers:
  - url: https://api.aisa.one
security:
  - bearerAuth: []
paths:
  /apis/v1/lusha/contacts-lookalike:
    post:
      tags:
        - Lusha
      summary: Find lookalike contacts from 5-100 seed contacts
      description: >-
        <!-- aisa-pricing:start -->

        Usage-based billing; Default request estimate: $0.1248 USD (not a fixed
        price). Declared unit rate: $0.000001 USD per provider_credit.
        Account-specific pricing and final settlement may differ.

        <!-- aisa-pricing:end -->
      operationId: lusha.contacts-lookalike
      requestBody:
        content:
          application/json:
            examples:
              default:
                value:
                  limit: 1
                  seeds:
                    ids:
                      - example
                      - example
                      - example
                      - example
                      - example
              minimal:
                value:
                  limit: 1
                  seeds:
                    ids:
                      - example
                      - example
                      - example
                      - example
                      - example
            schema:
              additionalProperties: false
              properties:
                limit:
                  enum:
                    - 1
                  maximum: 1
                  minimum: 1
                  type: integer
                seeds:
                  additionalProperties: false
                  properties:
                    ids:
                      items:
                        type: string
                      maxItems: 100
                      minItems: 5
                      type: array
                  required:
                    - ids
                  type: object
              required:
                - limit
                - seeds
              type: object
        required: true
      responses:
        '200':
          description: Successful response
        default:
          content:
            application/json:
              schema: {}
          description: >-
            Error response; upstream passthrough responses may use provider
            formats
      x-codeSamples:
        - lang: text
          label: Reference example
          source: >-
            # Fixed reference example. Playground inputs do not update this
            sample.

            curl --request POST \
              --url https://api.aisa.one/apis/v1/lusha/contacts-lookalike \
              --header 'Authorization: Bearer <token>' \
              --header 'Content-Type: application/json' \
              --data '{
              "limit": 1,
              "seeds": {
                "ids": [
                  "example",
                  "example",
                  "example",
                  "example",
                  "example"
                ]
              }
            }'
components:
  securitySchemes:
    bearerAuth:
      scheme: bearer
      type: http

````

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