MailerSend
MailerSend scores 47/100 on xpay's Agent-Ready Index v2: partial pricing visibility; checkout requires assistance; usage-based / per-token pricing is published.
MailerSend pricing
Free
Free
foreverHobby
$5.6/mo
Starter
Contact sales
Professional
Contact sales
How MailerSend scores on the agent-ready dimensions
Public pricing visibility
15 / 15
Self-serve checkout
8 / 15
Public API + docs
0 / 20
Usage-based / metered pricing
20 / 20
Free entry path
4 / 7
No sales call required
0 / 7
Card / wallet / x402 payment
0 / 6
Machine-readable bonus (MCP / OpenAPI)
0 / 10
Total
47 / 100
Six-step check: can an agent actually buy from MailerSend?
Discover price
Select a plan
Pay per task
Avoid a sales call
API docs without auth
Estimate cost upfront
Pros and cons for AI agents
Observational summary written by xpay from the signals captured on 2026-05-06. Not a review of the product — only of its current pricing posture for agent buyers.- Pricing is publicly visible on an indexable page — agents can read tiers without scraping past auth.
- Every advertised tier is self-serve; no tier requires scheduling a call.
- A free tier exists, lowering the bar for an agent builder to prototype before committing budget.
- No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
- API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
- No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
How MailerSend could lift its score
Add a per-unit price (e.g. $X / 1K calls) to the pricing page so an agent can compute its own cost before committing.
| pricing_visible | true |
| headline_phrasing | Pricing — Straightforward and fair pricing means that you only pay for what you need. |
| tier_count | 0 |
| lowest_paid_entry_usd | 5.6 |
| free_tier | true |
| free_tier_terms | null |
| per_unit_price | null |
| annual_required | false |
| self_serve_paid_tiers | 0 |
| sales_only_tiers | 1 |
| public_api_docs_url | null |
| api_docs_auth_walled | null |
| ai_pricing_json_present | false |
| agents_txt_present | false |
| anonymous_purchase_path | false |
| per_unit_classification | null |
| usage_headline_present | false |
| custom_tier_present | true |
| agent_friendly | {"ai_pricing_json":false,"agents_txt":false,"llms_txt":true,"sitemap_xml":true,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false} |
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47
/ 100 (rubric v2.0)Transactional Email
Pricing — Straightforward and fair pricing means that you only pay for what you need.
0
Yes
$5.6/mo
0 / 1
Auth-walled
No
Not published
2026-05-09
Tier-based subscription
Discovery files and protocols
Side-channel signals — informational, not part of the score. Each protocol is independent; adoption signals the publisher is thinking about agent buyers.ai-pricing.json
agents.txt
llms.txt
sitemap.xml
MCP Server Card
Agent Skills
x402 / MPP
Compare MailerSend with peers
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85
Mailchimp Transactional Email
85
Postmark
82
UniOne
77
AhaSend
77
Zoho ZeptoMail
73
Aritic Mail
73
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