FullEnrich Reverse Email Lookup API

openapi: 3.0.3
info:
  title: FullEnrich API
  description: >-
    FullEnrich finds verified B2B business emails and mobile phone numbers by
    running a waterfall across 15+ data vendors. Submit contacts by first name,
    last name and company (domain or company name) — optionally with a LinkedIn
    URL — for bulk enrichment, then retrieve results by polling or via webhook.
    Credits are only consumed when data is found.
  termsOfService: https://fullenrich.com/terms
  contact:
    name: FullEnrich Support
    url: https://docs.fullenrich.com
  version: '2.0'
servers:
  - url: https://app.fullenrich.com/api/v2
    description: FullEnrich production API
security:
  - bearerAuth: []
tags:
  - name: Contact Enrichment
    description: Submit contacts for waterfall enrichment and retrieve results.
  - name: Reverse Email Lookup
    description: Resolve a person and company from an email address.
  - name: Account
    description: Workspace credit balance and API key checks.
paths:
  /contact/enrich/bulk:
    post:
      operationId: startBulkEnrichment
      tags:
        - Contact Enrichment
      summary: Start a bulk contact enrichment
      description: >-
        Submit up to 100 contacts for waterfall enrichment. Each contact needs
        first_name and last_name plus either domain or company_name, or a
        linkedin_url. Returns an enrichment_id used to retrieve results.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BulkEnrichmentRequest'
      responses:
        '200':
          description: Enrichment job accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnrichmentAccepted'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '429':
          $ref: '#/components/responses/RateLimited'
    get:
      operationId: getBulkEnrichmentByQuery
      tags:
        - Contact Enrichment
      summary: Get bulk enrichment results by enrichment id
      description: >-
        Retrieve the results of a bulk enrichment. The enrichment_id may be
        supplied as a path segment (/contact/enrich/bulk/{enrichment_id}) or as
        a query parameter, depending on client convention.
      parameters:
        - name: enrichment_id
          in: query
          required: true
          description: The enrichment_id returned when the enrichment was started.
          schema:
            type: string
            format: uuid
        - name: forceResults
          in: query
          required: false
          description: Return partial results even if the enrichment is not finished.
          schema:
            type: boolean
            default: false
      responses:
        '200':
          description: Enrichment results.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnrichmentResult'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
  /contact/enrich/bulk/{enrichment_id}:
    get:
      operationId: getBulkEnrichment
      tags:
        - Contact Enrichment
      summary: Get bulk enrichment results
      description: >-
        Retrieve the results of a bulk enrichment by its enrichment_id. The
        response includes the run status, credits consumed, and per-contact
        enriched contact info and profile data.
      parameters:
        - name: enrichment_id
          in: path
          required: true
          description: The unique identifier returned when the enrichment was started.
          schema:
            type: string
            format: uuid
        - name: forceResults
          in: query
          required: false
          description: Return partial results even if the enrichment is not finished.
          schema:
            type: boolean
            default: false
      responses:
        '200':
          description: Enrichment results.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnrichmentResult'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
  /contact/reverse/email/bulk:
    post:
      operationId: startReverseEmailLookup
      tags:
        - Reverse Email Lookup
      summary: Start a bulk reverse email lookup
      description: >-
        Resolve a person and company from one or more email addresses. Returns
        an enrichment_id used to retrieve results.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ReverseEmailRequest'
      responses:
        '200':
          description: Reverse lookup accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnrichmentAccepted'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
    get:
      operationId: getReverseEmailLookup
      tags:
        - Reverse Email Lookup
      summary: Get reverse email lookup results
      description: Retrieve the result of a reverse email lookup by its enrichment_id.
      parameters:
        - name: enrichment_id
          in: query
          required: true
          description: The enrichment_id returned when the reverse lookup was started.
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Reverse lookup results.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnrichmentResult'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
  /account/credits:
    get:
      operationId: getAccountCredits
      tags:
        - Account
      summary: Get workspace credit balance
      description: Returns the current balance of credits available in your workspace.
      responses:
        '200':
          description: Current credit balance.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountCredits'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /account/keys/verify:
    get:
      operationId: verifyApiKey
      tags:
        - Account
      summary: Verify API key
      description: Validates that the supplied API key is active.
      responses:
        '200':
          description: API key status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/KeyVerification'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Pass your API key from the FullEnrich dashboard as a Bearer token in the
        Authorization header: `Authorization: Bearer YOUR_API_KEY`.
  responses:
    BadRequest:
      description: Bad request or enrichment still in progress.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authorization failed (missing header or invalid API key).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    PaymentRequired:
      description: Payment required (insufficient credits).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Enrichment id not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Rate limit exceeded.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    BulkEnrichmentRequest:
      type: object
      required:
        - name
        - data
      properties:
        name:
          type: string
          description: A readable identifier for this enrichment, visible in your dashboard.
          example: My enrichment batch
        webhook_url:
          type: string
          format: uri
          description: URL that receives a POST when the enrichment finishes, lacks credits, or is canceled.
          example: https://example.com/webhooks/fullenrich
        webhook_events:
          type: object
          description: Optional per-event webhook URLs.
          properties:
            contact_finished:
              type: string
              format: uri
              description: URL called as each individual contact finishes.
        data:
          type: array
          description: Up to 100 contacts to enrich.
          maxItems: 100
          items:
            $ref: '#/components/schemas/ContactInput'
    ContactInput:
      type: object
      description: >-
        A contact to enrich. Provide first_name and last_name plus either domain
        or company_name, or provide a linkedin_url.
      properties:
        first_name:
          type: string
          example: John
        last_name:
          type: string
          example: Doe
        domain:
          type: string
          description: Company website domain.
          example: acme.com
        company_name:
          type: string
          example: Acme Inc
        linkedin_url:
          type: string
          format: uri
          description: LinkedIn profile URL to improve email and phone match rates.
          example: https://www.linkedin.com/in/johndoe
        enrich_fields:
          type: array
          description: Which data types to retrieve.
          items:
            type: string
            enum:
              - contact.work_emails
              - contact.personal_emails
              - contact.phones
          example:
            - contact.work_emails
            - contact.phones
        custom:
          type: object
          description: >-
            Reference data (e.g. CRM IDs) echoed back in the result. String
            values only; max 10 keys, up to 100 chars per value.
          additionalProperties:
            type: string
    ReverseEmailRequest:
      type: object
      required:
        - name
        - data
      properties:
        name:
          type: string
          description: A readable identifier for this reverse lookup.
        webhook_url:
          type: string
          format: uri
        data:
          type: array
          maxItems: 100
          items:
            type: object
            required:
              - email
            properties:
              email:
                type: string
                format: email
                example: john.doe@acme.com
              custom:
                type: object
                additionalProperties:
                  type: string
    EnrichmentAccepted:
      type: object
      properties:
        enrichment_id:
          type: string
          format: uuid
          example: 2db5ea61-1752-42cf-8ea1-ab1da060cd0a
    EnrichmentResult:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        status:
          type: string
          enum:
            - CREATED
            - IN_PROGRESS
            - CANCELED
            - CREDITS_INSUFFICIENT
            - FINISHED
            - RATE_LIMIT
            - UNKNOWN
        cost:
          type: object
          properties:
            credits:
              type: integer
              description: Total credits consumed by this enrichment.
        data:
          type: array
          items:
            $ref: '#/components/schemas/EnrichedContact'
    EnrichedContact:
      type: object
      properties:
        input:
          type: object
          properties:
            first_name:
              type: string
            last_name:
              type: string
            full_name:
              type: string
            company_domain:
              type: string
            company_name:
              type: string
            professional_network_url:
              type: string
        custom:
          type: object
          description: The custom object supplied in the request, echoed back unchanged.
          additionalProperties:
            type: string
        contact_info:
          $ref: '#/components/schemas/ContactInfo'
        profile:
          $ref: '#/components/schemas/Profile'
    ContactInfo:
      type: object
      properties:
        most_probable_work_email:
          $ref: '#/components/schemas/EmailResult'
        most_probable_personal_email:
          $ref: '#/components/schemas/EmailResult'
        most_probable_phone:
          $ref: '#/components/schemas/PhoneResult'
        work_emails:
          type: array
          items:
            $ref: '#/components/schemas/EmailResult'
        personal_emails:
          type: array
          items:
            $ref: '#/components/schemas/EmailResult'
        phones:
          type: array
          items:
            $ref: '#/components/schemas/PhoneResult'
    EmailResult:
      type: object
      properties:
        email:
          type: string
          format: email
        status:
          type: string
          enum:
            - DELIVERABLE
            - HIGH_PROBABILITY
            - CATCH_ALL
            - INVALID
            - INVALID_DOMAIN
    PhoneResult:
      type: object
      properties:
        number:
          type: string
          description: Phone number in E.164 format.
          example: '+14155552671'
        region:
          type: string
          description: ISO country code for the number.
          example: US
    Profile:
      type: object
      properties:
        id:
          type: string
          format: uuid
        full_name:
          type: string
        first_name:
          type: string
        last_name:
          type: string
        location:
          type: object
          properties:
            country:
              type: string
            country_code:
              type: string
            city:
              type: string
            region:
              type: string
        social_profiles:
          type: object
          properties:
            professional_network:
              type: object
              properties:
                id:
                  type: integer
                url:
                  type: string
                handle:
                  type: string
                connection_count:
                  type: integer
        skills:
          type: array
          items:
            type: string
        employment:
          type: object
          properties:
            current:
              $ref: '#/components/schemas/Employment'
            all:
              type: array
              items:
                $ref: '#/components/schemas/Employment'
    Employment:
      type: object
      properties:
        title:
          type: string
        is_current:
          type: boolean
        start_at:
          type: string
          format: date-time
        end_at:
          type: string
          format: date-time
        company:
          type: object
          properties:
            name:
              type: string
            domain:
              type: string
    AccountCredits:
      type: object
      properties:
        credits:
          type: integer
          description: Current credit balance available in the workspace.
          example: 4820
    KeyVerification:
      type: object
      properties:
        valid:
          type: boolean
          example: true
    Error:
      type: object
      properties:
        code:
          type: string
          example: error.unauthorized
        message:
          type: string
          example: Invalid API key