This is an info Alert.
x402 Logo
  • Product
    • Become Agent-Ready
      • Merchants
        Agentic Commerce — list your store across ChatGPT, Gemini, Claude & Perplexity
      • Publishers
        Monetize your content when AI agents read, cite, or train on it
      • SaaS Companies
        Treat AI agents as first-class customers with agent-priced checkout
    • Monetize
      • Monetize MCP Server
        Charge per call on any MCP server in 2 minutes
      • Monetize AI Agents
        Turn n8n, Zapier, Activepieces workflows into revenue
      • Agent Feed
        Pay-per-query access to licensed publisher content for your agents
  • Resources
    • xpay Ecosystem
      • xpay✦ Tools
        1,000+ pay-per-use tools for your AI agents
      • Agent-Ready SaaS Index
        25,481 SaaS scored on agent-buyability
      • SaaS Pricing Database
        Pricing pages indexed across 1,000+ categories
      • GitHub
        Open source repositories
    • Agent Building
      • Agent Frameworks
        AI frameworks for building multi-agent systems
      • x402 Integration
        AI frameworks with x402 payment integration
      • Networks
        Blockchain networks supporting x402
    • Company
      • About xpay✦
        Our mission, products, and protocols
      • Blog
        Latest insights and updates
      • Docs
        Complete xpay documentation
  • Pricing
  • Blog
  • Docs
Get Started

  1. Home

  2. /

  3. Agent-Ready SaaS Index

  4. /

  5. Email

  6. /

  7. KumoMTA

KumoMTA logo

KumoMTA

Not Agent-Ready Yet
Agent-Ready SaaS Index · kumomta.com · scored 2026-05-09 · rubric v2.0
Score 11 / 100
Email
Self-serve checkout

KumoMTA scores 11/100 on xpay's Agent-Ready Index v2: partial pricing visibility; a free entry path exists.

See KumoMTA pricing summaryLive pricing page
Pricing
KumoMTA pricing
As of 2026-05-09 · kumomta.com
Sales-led pricing

Pricing details are not publicly listed; only a free tier is mentioned. Most pricing fields are null due to lack of visible price information.

Score breakdown · rubric v2.0
How KumoMTA scores on the agent-ready dimensions

Public pricing visibility

2 / 15

Self-serve checkout

0 / 15

Public API + docs

0 / 20

Usage-based / metered pricing

0 / 20

Free entry path

7 / 7

No sales call required

2 / 7

Card / wallet / x402 payment

0 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total
11 / 100
Agent purchase verdict
Can an autonomous agent transact here?
Sales-gated
LLM score: 5/100

Can create account

Unknown

Can enter payment method

Unknown

Can upgrade plan

Unknown

Can buy more usage

Unknown

Can cancel online

Unknown

Payment methods

Unknown

Human approval recommended

Yes

Pricing transparency

contact_only

Purchase motion

sales_led

Demo required

Unknown

Quote required

Unknown

Annual commit required

Unknown

Auto-renewal mentioned

No

Cancellation policy visible

No

Refund policy visible

No

Invoice payment available

Unknown

Purchase orders supported

Unknown

MSA required

Unknown

DPA available

Unknown

Security review required

Unknown

Competitive intel
Positioning & ecosystem
Headline

“OPEN SOURCE EMAIL INFRASTRUCTURE”

Buyer persona

enterprise
developer

Integrations mentioned
Ongage
Postmastery
EmailConsul
Agent purchase simulation
Six-step check: can an agent actually buy from KumoMTA?
◐

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
  • No clear agent-favorable signals were extracted on this scoring run.
◐ Opportunities for the provider
  • No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
  • All advertised tiers route to a sales contact form; an agent cannot complete a purchase autonomously.
  • API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
  • PPU requires account creation and an issued API key; a fully unauthenticated agent purchase is not yet supported.
  • No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
One-line fix
How KumoMTA 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

false

headline_phrasing

OPEN SOURCE EMAIL INFRASTRUCTURE — KumoMTA is architected for the performance needed by enterprise senders, whether it's sending several million messages per hour through a single server, or scaling horizontally using Docker and Kubernetes.

tier_count

0

lowest_paid_entry_usd

null

free_tier

false

free_tier_terms

null

per_unit_price

null

annual_required

false

self_serve_paid_tiers

1

sales_only_tiers

0

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":false,"sitemap_xml":true,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false}

View raw extracted page text →
Page heading: OPEN SOURCE EMAIL INFRASTRUCTURE
CTAs (40): Skip to content · JUST RELEASED: The 2026 State of MailOps Report · JUST RELEASED: The 2026 MTA Buyers Guide · Technology · Architecture · Features · Open Source · Support & Pricing · About Kumo · About Us · Customers · Contact Us
Skip to content JUST RELEASED: The 2026 State of MailOps Report × JUST RELEASED: The 2026 MTA Buyers Guide × Technology Architecture Features Open Source Support & Pricing About Kumo About Us Customers Contact Us Resources Documentation Blog Community Forum Guides & Reports 2026 MTA Buyers Guide 2026 State of MailOps YouTube Channel Github Repository Contact Us Try It For Free OPEN SOURCE EMAIL INFRASTRUCTURE for enterprises and high-volume senders Get started for free Join our community Fast KumoMTA is architected for the performance needed by enterprise senders, whether it's sending several million messages per hour through a single server, or scaling horizontally using Docker and Kubernetes. Read more Flexible KumoMTA can replace straightforward configurations or be deeply integrated into your MailOps environment thanks to our Lua scripting engine and support for technologies including webhooks, AMQP, Kafka, Vault, Prometheus, Grafana, and direct database access. Read more Open-Source KumoMTA is released under the Apache 2 OSI-approved license, with the ultimate transparency of having our sourcecode hosted on Github. Our community is actively involved and contributing to make KumoMTA better every day. Read more Let's Talk Architecture Revolutionized A leap ahead of re-architected commercial offerings Read more Performance Redefined Send 10’s of millions of messages an hour on a single instance Read more Confidence Restored No more black boxes when you own the code Read mor…
You work at KumoMTA?
Claim this scorecard & lift your score.

Get the breakdown of every signal we measured, the one-line fix, and how your peers in Email stack up.

Evaluating KumoMTA?
Compare the agent-ready picks in Email.

If you're building or running an AI agent that needs to buy from this category, see who's scoring highest right now.

See agent-ready picks
Are you KumoMTA? Something off in this listing?
Agent-Ready Spec
KumoMTA
Not Agent-Ready Yet

11

/ 100 (rubric v2.0)
Category

Email

Pricing model

Not advertised

Tier count

0

Free tier

No

Lowest paid entry

Sales-led

Self-serve / sales-only tiers

1 / 0

Public API docs

Auth-walled

Anonymous purchase path

No

Machine-readable pricing

Not published

Last refreshed

2026-05-09

Pricing intelligenceInsights extracted from kumomta.com
Pricing model

Sales-led pricing

Agent-purchase verdict
Sales-gated
5/100 · v2.1
Cheapest entry

Free plan (Free)

Actions
Open live pricing page
Verdict reflects Not Agent-Ready Yet status under rubric v2.0. Source observed at https://kumomta.com.
Agent-friendly features1 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

More in Email
Compare KumoMTA with peers
Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.
SmartLead
69
smartlead.ai
Approaching Agent-Ready
Snoooz
68
snoooz.ai
Approaching Agent-Ready
Unattach
67
unattach.com
Approaching Agent-Ready
Emailit
66
emailit.com
Approaching Agent-Ready
Breakcold
63
breakcold.com
Approaching Agent-Ready
EmailJS
62
emailjs.com
Approaching Agent-Ready
eConnect Email
62
econnectemail.com
Approaching Agent-Ready
Sidemail
62
sidemail.io
Approaching Agent-Ready
Browse all Email →

Explore the Agent-Ready SaaS Index

25,480+ SaaS scored on agent-buyability — browse by readiness band, category, or jump straight to a pay-per-run tool on xpay.tools.

Browse by agent-readiness band
Agent-Ready Verified(448)Approaching Agent-Ready(2,513)Partially Agent-Ready(6,407)Not Agent-Ready Yet(16,112)See full index
Browse by category
CRM(500)Content Creation(414)Chatbots(407)AI Writing Assistant(394)Social Media Management(381)Website Builder(343)Seo(317)Project Management(288)Scheduling(270)Survey User Feedback(265)Email Marketing(252)Hr(237)All categories
Available pay-per-run on xpay.tools
FirecrawlExaTavilyApolloHunterJina AIBright DataContext7Alpha VantageReplicatePerplexityParallelBrowse all xpay.tools
x402 Logo

The agent-readiness stack for the AI shopping era — helping merchants, publishers and SaaS companies get discovered, cited and transacted with by ChatGPT, Perplexity, Claude, Gemini and the custom shopping agents underneath them.

CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
or ask your AI app
Company
About xpayAgency PartnersGitHubDiscordllms.txt
DevelopersDocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
Stay Updated
Occasional product updates and agent-readiness playbooks from xpay (Agentically Inc.) — typically a couple of emails a month. Double opt-in: we email you a link to confirm before sending anything, and every email has one-click unsubscribe.
Social
  • For Publishers
    • News
    • Finance
    • Dev / Tech
    • Travel
    • View all verticals
  • Agent Feed
    • AI Search Engines
    • RAG Builders
    • Browser Agents
    • Vertical Research
    • Browse full catalog
  • Agent-Ready Index
    • SaaS Pricing Database
    • Agent-Ready SaaS Index
    • Verified band
    • AI & ML
    • Sales & CRM
  • Products
    • Pricing Widget
    • Monetize MCP Server
    • Paywall
    • Smart Proxy
    • Monetize AI Agents
    • xpay x402 Facilitator
  • Agentic Economy
    • Timeline
    • Resources
    • Manifesto
    • Stack
  • Agentic Commerce
    • Get listed
    • xpay Listings · Amazon + Google
    • Pricing
    • Free audit
    • Shopify
    • WooCommerce
    • Apparel & Accessories
    • Health & Beauty
    • Overview
  • Commerce Index
    • Agentic Commerce Ready Index
    • Methodology
    • Pet brands · WooCommerce
    • Pet brands · Shopify
  • Marketplace
    • 🛍️ xpay.deals — agentic storefront for deals
  • Protocols
    • Overview
    • x402
    • MPP
    • UCP
    • ACP
    • AP2
    • TAP
    • A2A
  • Agent Frameworks
    • Overview
    • LangChain
    • CrewAI
    • Claude MCP
    • AutoGPT
    • LangChain vs Mastra
    • LangGraph vs Pydantic AI
  • Company
    • About xpay
    • Blog
    • Docs
    • GitHub
© 2025 Agentically Inc. All rights reserved.
Privacy PolicyTerms of UseAcceptable Use Policy