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MailSlurp logo

MailSlurp

Agent-Ready Verified
Agent-Ready SaaS Index · mailslurp.com · scored 2026-05-09 · rubric v2.0
Score 80 / 100
Email Testing
Public API

MailSlurp scores 80/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a public API exists with documentation; usage-based / per-token pricing is published.

See MailSlurp pricing summaryLive pricing page
Pricing
MailSlurp pricing
As of 2026-05-09 · www.mailslurp.com/pricing/
Starter
$19.99/mo
flat
5 permanent inboxes
5 outbound destinations
Inbox placement test
Non‑commercial license
Limited support
Pro
$69/mo
flat
All features in STARTER
100 permanent inboxes
100 destinations
Attachments
Email audit
Growth
$129.99/mo
flat
All features in PRO
Unlimited permanent addresses
Unlimited destinations
Organizations (seats)
Custom domains
Enterprise
Sales
Contact sales
All features in GROWTH
SAML SSO IDP
Invoice and procurement
RBAC roles and permissions
Multiple environments
Score breakdown · rubric v2.0
How MailSlurp scores on the agent-ready dimensions

Public pricing visibility

15 / 15

Self-serve checkout

15 / 15

Public API + docs

18 / 20

Usage-based / metered pricing

20 / 20

Free entry path

0 / 7

No sales call required

7 / 7

Card / wallet / x402 payment

5 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total
80 / 100
Effective pricing
What it actually costs at typical scale
1 user on Starter plan, no add‑ons
$19.99/mo
· Starter plan selected· No usage‑based add‑ons
Confidence: high
1 team on Pro plan with 5,000 sent & 5,000 received emails
$78.9/mo
· Pro plan selected· Email send 5,000 msgs (5×$0.99)· Email receive 5,000 msgs (5×$0.99)
Confidence: high
Growth plan with 10,000 AI tokens usage
$130.99/mo
· Growth plan selected· AI token usage 10,000 (1×$1.00)
Confidence: high
Agent purchase verdict
Can an autonomous agent transact here?
Agent-ready
LLM score: 100/100

Can create account

Yes

Can enter payment method

Yes

Can upgrade plan

Yes

Can buy more usage

Yes

Can cancel online

Yes

Payment methods

card

Human approval recommended

No

Pricing transparency

full

Purchase motion

self_serve

Demo required

No

Quote required

No

Annual commit required

Yes

Auto-renewal mentioned

Yes

Cancellation policy visible

No

Refund policy visible

No

Minimum term

12 months

Invoice payment available

Yes

Purchase orders supported

Yes

MSA required

Yes

DPA available

No

Security review required

Yes

Trial

Available

API readiness
API & developer surface

API-first product

Yes

Sandbox present

Unknown

Webhooks

Yes

MCP mentioned

No

Enterprise signals
Trust & compliance

Certifications

SOC2

SSO / SAML

Yes

RBAC

Yes

Audit logs

Yes

Data residency

US

Competitive intel
Positioning & ecosystem
Headline

“Simple pricing”

Buyer persona

smb
mid market
enterprise
developer

Integrations mentioned
Google Sheets
Agent purchase simulation
Six-step check: can an agent actually buy from MailSlurp?
✓

Discover price

✓

Select a plan

✗

Pay per task

✓

Avoid a sales call

◐

API docs without auth

✗

Estimate cost upfront

Analysis
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.
✓ For an AI agent
  • 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.
◐ Opportunities for the provider
  • 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.
One-line fix
How MailSlurp could lift its score

Add at least one self-serve paid tier with a checkout link, so an agent can pay without a sales call.

pricing_visible

true

headline_phrasing

Simple pricing — Pick a subscription for features, then pay as you go for usage.

tier_count

6

lowest_paid_entry_usd

19.99

free_tier

false

free_tier_terms

null

per_unit_price

$0.99 / 1,000 emailsEmail sendOutbound email volume for automation and delivery

annual_required

true

self_serve_paid_tiers

0

sales_only_tiers

1

public_api_docs_url

https://www.mailslurp.com/docs/

api_docs_auth_walled

false

ai_pricing_json_present

false

agents_txt_present

false

anonymous_purchase_path

false

per_unit_classification

{"unit_class":"message","confidence":"medium","agent_task_price_forecastable":"yes","rejected_reason":null,"evidence_text":"$0.99 / 1,000 emailsEmail sendOutbound email volume for automation and delivery"}

usage_headline_present

true

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}

View raw extracted page text →
Page heading: Simple pricing
CTAs (40): MailSlurp · Open main menu · Sign up · 5 permanent inboxes · 5 outbound destinations · Inbox placement test · Non-commercial license · Limited support · All features in STARTER · 100 permanent inboxes · 100 destinations · Attachments
Price tokens (16): $19.99/ moPersonal useSign up · $69/ moProduction scaleSig · $129.99/ moTeam supportSign up · $0.75 · $3.00 · $0.99 · $0.99 · $1.00 · $0.01 · $1.00 · $0.50 · $3.00
MailSlurpOpen main menuSimple pricingPick a subscription for features, then pay as you go for usage. Currency $ USD Monthly Annually Trial Off On Starter$19.99/ moPersonal useSign up5 permanent inboxes5 outbound destinationsInbox placement testNon-commercial licenseLimited supportPro$69/ moProduction scaleSign upAll features in STARTER100 permanent inboxes100 destinationsAttachmentsEmail auditDevice previewsAutomationsWebhooksAI TransformersPhone numbers Recommended Growth$129.99/ moTeam supportSign upAll features in PROUnlimited permanent addressesUnlimited destinationsOrganizations (seats)Custom domainsCampaign probeInbox warmupDomain monitorConnect GmailLoad testsChat and email supportEnterprise Custom Secure & compliantSpeak to sales All features in GROWTHSAML SSO IDPInvoice and procurementRBAC roles and permissionsMultiple environmentsAudit access logsRegional hostingSOC2 complianceCustom SLA / MSAImport and exportCustom support packages Simple metered usage Base plans unlock features. Add-ons price volume, seats, domains, and channels. Add-ons Add-on Description Price StorageExtra retained email and attachment storage.From $0.75 / 1 GB / monthInbox creationNew inboxes after the base plan allocation.From $3.00 / 1,000 inboxesEmail receiveInbound email volume for live addresses and tests.From $0.99 / 1,000 emailsEmail sendOutbound email volume for automation and delivery.From $0.99 / 1,000 emailsUser seatsExtra people on shared workspaces.Speak to salesDomainsExtra custom…
You work at MailSlurp?
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Get the breakdown of every signal we measured, the one-line fix, and how your peers in Email Testing stack up.

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Are you MailSlurp? Something off in this listing?
Agent-Ready Spec
MailSlurp
Agent-Ready Verified

80

/ 100 (rubric v2.0)
Category

Email Testing

Pricing model

Simple pricing — Pick a subscription for features, then pay as you go for usage.

Tier count

6

Free tier

No

Lowest paid entry

$19.99/mo

Per-unit price

$0.99 / 1,000 emailsEmail sendOutbound email volume for automation and delivery

Self-serve / sales-only tiers

0 / 1

Public API docs

Public

Anonymous purchase path

No

Machine-readable pricing

Not published

Last refreshed

2026-05-09

Pricing intelligenceInsights extracted from www.mailslurp.com/pricing/
Pricing model

Tier-based subscription

Agent-purchase verdict
Agent-ready
100/100 · v2.1
Canonical answer

MailSlurp pricing starts at $19.99/mo for the Starter plan; a free plan is not listed; paid plans go up to $129.99/mo. Billed monthly or annually.

Cheapest entry

Starter plan ($19.99)

Actions
Open live pricing page
Verdict reflects Agent-Ready Verified status under rubric v2.0. Source observed at https://www.mailslurp.com/pricing/.
Agent-friendly features2 of 7 present
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

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CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
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