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Mailchimp Transactional (Mandrill) API

mandrillapp.com

Verification pendingResearched, not yet routed
Mailchimp's transactional email API, sold in blocks. Buying direct: $20 per 25k-email block (1-20 blocks). Listed .
Capabilities
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From
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Calls, 30 days
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Ranked first
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Overview

Researched from the vendor's own pages; every fact links to its source and the day we checked it.

Mailchimp Transactional (formerly Mandrill) is Intuit Mailchimp's transactional email API. Methods live under mandrillapp.com/api/1.0; sending is priced in blocks, with volume discounts.

Company

Verified
Legal name
Not confirmed
Headquarters
Not confirmed
Founded
Not confirmed
Employees
Not confirmed
Ownership
Subsidiary (Intuit Mailchimp)
Status
active
Kind
Infrastructure

API

Verified
Access
Self-serve API
Style
REST
Auth
Not confirmed
Base URL
https://mandrillapp.com/api/1.0
Features
Bulk —Async —Webhooks YesMCP —Sandbox —
Rate limit
Not confirmed

Pricing

Model
subscription
List prices
  • 1 to 20 blocks $20/block, 1 to 500k emails
  • 21 to 40 blocks $18/block
  • 161+ blocks $10 per block, 4M+ emails
Currency
USD
Free tier
Not confirmed

Compliance

SOC 2
Not confirmed
GDPR
Stated
CCPA
Not confirmed
DPA
Not confirmed
Resale / storage
Unknown until a written agreement says otherwise

Relationships

Integrations
Not confirmed
Alternatives
None named by the vendor
Parent
Intuit Mailchimp
Sources (3)

Placement in the Grid

Where this vendor sits on the GridRouter Grid in each category it serves. No vendor pays for placement.

Placement in the GridRouter Grid by category
CategoryPlacementExecuteCoverageCallsReport
Email Sending & DeliverabilityNot yet rated––0View Grid

API

The vendor's OpenAPI document as stored in the catalog, its operations, and the rate limits it publishes.

Reconstructed · low confidenceOpenAPI 3.1.0 · 1 operations · checked Sep 29, 2026 Spec (YAML)

Rebuilt from the vendor's public docs, only what the pages show. Each operation links the page it came from; response shapes the docs don't spell out are left empty rather than guessed.

Operations in the mandrill spec
MethodPathSummaryParamsSource
POST/messages/sendSend new message0Docs

Rate limits

No published rate limits found. Without a published limit GridRouter paces conservatively (1 request per second).

Compare Mailchimp Transactional (Mandrill)