apiCommonsPlans: "0.1"
generated: '2026-08-14'
method: searched
source: https://mailboxlayer.com/product
sources:
  - https://mailboxlayer.com/product
  - https://docs.apilayer.com/mailboxlayer/docs/getting-started
plan_count: 5
provider:
  id: mailboxlayer
  name: mailboxlayer
  url: https://mailboxlayer.com
  parent: apilayer
modified: '2026-08-14'
billingModel:
  type: subscription
  cycle: monthly
  currency: USD
  trial: ~
  freeTier: true
  overage:
    type: per-request
    notes: Charged after monthly request allowance is exhausted; per-request rate varies by plan.

plans:
  - id: free
    name: Free
    price:
      monthly: 0
      annual: 0
      currency: USD
    quotas:
      - metric: requests
        included: 100
        period: month
    features:
      - syntax-and-typo-check
      - free-provider-database
      - disposable-provider-database
      - quality-score
      - real-time-smtp-check
      - mx-records-check
    transport:
      https: true
      note: >-
        CORRECTED 2026-08-14. The Free plan feature list on https://mailboxlayer.com/product
        now includes "256-bit HTTPS Encryption", and the Getting Started documentation lists
        HTTPS as available on all plans. This file previously recorded https: false for Free.
        Error 105 (https_access_restricted) nevertheless remains in the published error
        catalog, so a plan-level HTTPS restriction cannot be fully ruled out.
    support: none
    rateLimit: 50 requests/minute
    notes: >-
      Free tier. 100 requests/month, hard-capped with no overage. No support, no catch-all
      detection, no bulk endpoint.

  - id: basic
    name: Basic
    price:
      monthly: 14.99
      annual: 161.99
      annualDiscountPct: 10
      currency: USD
    quotas:
      - metric: requests
        included: 5000
        period: month
    overage:
      rate: 0.012
      unit: request
      currency: USD
    features:
      - syntax-and-typo-check
      - free-provider-database
      - disposable-provider-database
      - quality-score
      - real-time-smtp-check
      - mx-records-check
      - catch-all-detection
    transport:
      https: true
    support: standard
    rateLimit: 100 requests/minute
    notes: Catch-all detection unlocks here. Still no bulk endpoint.

  - id: professional-plus
    name: Professional Plus
    price:
      monthly: 74.99
      annual: 787.99
      annualDiscountPct: 12.5
      currency: USD
    quotas:
      - metric: requests
        included: 50000
        period: month
    overage:
      rate: 0.006
      unit: request
      currency: USD
    features:
      - syntax-and-typo-check
      - free-provider-database
      - disposable-provider-database
      - quality-score
      - real-time-smtp-check
      - mx-records-check
      - catch-all-detection
      - bulk-endpoint-25-emails
    transport:
      https: true
    support: standard
    rateLimit: 300 requests/minute
    notes: >-
      First tier with /bulk_check access, capped at 25 addresses per call. One bulk call is
      one billable request regardless of address count.

  - id: enterprise-plus
    name: Enterprise Plus
    price:
      monthly: 249.99
      annual: 2549.99
      annualDiscountPct: 15
      currency: USD
    quotas:
      - metric: requests
        included: 250000
        period: month
    overage:
      rate: 0.004
      unit: request
      currency: USD
    features:
      - syntax-and-typo-check
      - free-provider-database
      - disposable-provider-database
      - quality-score
      - real-time-smtp-check
      - mx-records-check
      - catch-all-detection
      - bulk-endpoint-100-emails
    transport:
      https: true
    support: standard
    rateLimit: 300 requests/minute
    notes: >-
      Same per-minute throughput ceiling as Professional Plus (300/min). The upgrade buys
      monthly volume and a larger bulk batch, not more throughput.

  - id: custom
    name: Custom / Unlimited
    price:
      monthly: ~
      annual: ~
      currency: USD
    quotas:
      - metric: requests
        included: ~
        period: month
        notes: Volume negotiated based on customer needs.
    transport:
      https: true
    support: standard
    notes: Contact sales for custom/enterprise pricing above 250,000 requests/month.

addOns:
  - id: platinum-support
    name: Platinum Support
    cycle: annual
    features:
      - dedicated-account-management
      - priority-bug-fixes
      - priority-email-support
      - quarterly-briefing-calls
      - feature-request-prioritization

undisclosed:
  - id: daily-cap
    note: >-
      A daily request cap exists in addition to the monthly allowance — evidenced by error
      104 / daily_usage_limit_reached — but no figure is published on any plan.
  - id: fair-use-ceiling
    note: >-
      An unpublished fair-use ceiling sits above the plan allowance — evidenced by error
      104 / fair_use_limit_reached.

undisclosed_reference: rate-limits/mailboxlayer-rate-limits.yml

signup:
  url: https://mailboxlayer.com/product
  alternate: https://app.apilayer.com/signup
  credit_card_required: false
  note: >-
    Self-serve. One APILayer account and one access key cover every APILayer product, so a
    mailboxlayer subscription is billed on the same account as any sibling API.