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OpenAPI Specification

openapi: 3.2.0
info:
  title: Cold Leads Verify API
  version: 1.0.0
  description: 'Headless e-mail verification and B2B e-mail discovery, plus the sales memory an AI agent needs to continue work across sessions: one-call lead context, a next-actions queue, follow-up scheduling and an audit log of API/MCP calls. Each operation declares x-coldleads-side-effect (read or write); nothing here sends e-mail. Authenticate with an API key from Settings → API keys (Business plan). Node.js SDK: https://github.com/anttka4cz/coldleads-node-sdk · MCP server: https://github.com/anttka4cz/mcp-server-coldleads'
servers:
- url: https://coldleads.app/api/v1
security:
- apiKey: []
tags:
- name: Verify
paths:
  /verify:
    post:
      operationId: verifyEmail
      summary: Verify one e-mail address (1 credit)
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - email
              properties:
                email:
                  type: string
                  format: email
                timeout_ms:
                  type: integer
                  minimum: 1000
                  maximum: 30000
                  description: Optional time budget; when exceeded the result is risky with reasons [timeout] and catch_all is not determined
      responses:
        '200':
          description: Result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerifyResult'
        '401':
          description: Missing or bad API key
        '402':
          description: No credits left
        '429':
          description: Rate limited (120/min per key)
      tags:
      - Verify
  /verify/bulk:
    post:
      operationId: verifyBulk
      summary: Verify a list (up to 5000 e-mails); returns a job to poll
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - emails
              properties:
                emails:
                  type: array
                  items:
                    type: string
                name:
                  type: string
      responses:
        '202':
          description: Job created
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                  status:
                    type: string
                  total:
                    type: integer
                  poll:
                    type: string
        '429':
          description: Too many concurrent jobs (max 5)
      tags:
      - Verify
  /verify/jobs/{id}:
    get:
      operationId: getVerifyJob
      summary: Job status and bucket counts; results=1 includes per-e-mail results
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      - name: results
        in: query
        schema:
          type: string
          enum:
          - '1'
      responses:
        '200':
          description: Job
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                  status:
                    type: string
                    enum:
                    - queued
                    - running
                    - done
                    - failed
                  total:
                    type: integer
                  done:
                    type: integer
                  counts:
                    type: object
                    properties:
                      valid:
                        type: integer
                      risky:
                        type: integer
                      invalid:
                        type: integer
                  results:
                    type: array
                    items:
                      type: object
      tags:
      - Verify
components:
  schemas:
    VerifyResult:
      type: object
      properties:
        email:
          type: string
        status:
          type: string
          enum:
          - valid
          - risky
          - invalid
        score:
          type: integer
          minimum: 0
          maximum: 100
        reasons:
          type: array
          items:
            type: string
        mx:
          type:
          - string
          - 'null'
        catch_all:
          type: boolean
        disposable:
          type: boolean
        role:
          type: boolean
        checked_at:
          type: string
          format: date-time
        cached:
          type: boolean
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
externalDocs:
  description: Node.js SDK (GitHub)
  url: https://github.com/anttka4cz/coldleads-node-sdk