Inbox Mailers
Inbox Mailers scores 62/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; usage-based / per-token pricing is published.
Inbox Mailers pricing
4 SKUs priced per credits
| Model / SKU | Input | Output |
|---|---|---|
62,500 Credits Price per 1,000 credits | $8 / 1K credits | — |
285,000 Credits Price per 1,000 credits | $7 / 1K credits | — |
830,000 Credits Price per 1,000 credits | $6 / 1K credits | — |
2,000,000 Credits Price per 1,000 credits | $5 / 1K credits | — |
How Inbox Mailers scores on the agent-ready dimensions
Public pricing visibility
15 / 15
Self-serve checkout
15 / 15
Public API + docs
0 / 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
62 / 100
What it actually costs at typical scale
1,000 emails (approx. 1,000 credits)
$8/mo
Can an autonomous agent transact here?
Can create account
Can enter payment method
Can upgrade plan
Can buy more usage
Can cancel online
Payment methods
Human approval recommended
Pricing transparency
full
Purchase motion
self_serve
Demo required
Quote required
Annual commit required
Auto-renewal mentioned
Cancellation policy visible
Refund policy visible
Invoice payment available
Unknown
Purchase orders supported
Unknown
MSA required
Unknown
DPA available
Unknown
Security review required
Unknown
Positioning & ecosystem
Buyer persona
Six-step check: can an agent actually buy from Inbox Mailers?
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.
- 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.
- The pricing URL did not render numeric tier data on the scoring date — possibly a router or sales-led landing page.
How Inbox Mailers 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 | Signup - Pricing - Inbox Mailers — This content is password-protected. To view it, please enter the password below. |
| 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 | 0 |
| sales_only_tiers | 0 |
| public_api_docs_url | https://inboxmailers.com/wp-content/uploads/2021/04/api.png |
| api_docs_auth_walled | false |
| ai_pricing_json_present | false |
| agents_txt_present | false |
| anonymous_purchase_path | false |
| per_unit_classification | null |
| usage_headline_present | false |
| custom_tier_present | false |
| 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 →
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62
/ 100 (rubric v2.0)Email Marketing
Signup - Pricing - Inbox Mailers — This content is password-protected. To view it, please enter the password below.
0
No
Sales-led
0 / 0
Public
No
Not published
2026-05-09
Per-model / per-SKU pricing
Inbox Mailers pricing starts at $500 for the 62,500 Credits bundle; paid bundles go up to $10,000 for 2,000,000 Credits. Billed one-time.
62,500 Credits ($500)
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 Inbox Mailers with peers
Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.Plunk
83
Flexmail
78
Sensorpro
76
Mailrelay
74
Selzy
74
Rejoiner
71
Sendloop
71
lemlist
69
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.