Castos
Castos 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.
Castos pricing
Essentials
$19/mo
or $15.83/mo billed annuallyGrowth
$49/mo
or $40.83/mo billed annuallyPro
$99/mo
or $82.5/mo billed annuallyCastos Premium
$499/mo
or $415.83/mo billed annuallyHow Castos 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
Essentials monthly
$19/mo
Pro annual
$82.5/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
Unknown
Auto-renewal mentioned
Cancellation policy visible
Refund policy visible
Invoice payment available
Purchase orders supported
Unknown
MSA required
Unknown
DPA available
Unknown
Security review required
Unknown
Annual discount
16.7% off
Trust & compliance
SSO / SAML
RBAC
Unknown
Audit logs
Unknown
Data residency
Positioning & ecosystem
“Flexible & Transparent Pricing”
Buyer persona
Six-step check: can an agent actually buy from Castos?
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.
How Castos 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 | Flexible & Transparent Pricing — Trusted by 42,000 podcasts |
| tier_count | 5 |
| lowest_paid_entry_usd | 499 |
| free_tier | false |
| free_tier_terms | null |
| per_unit_price | null |
| annual_required | true |
| self_serve_paid_tiers | 0 |
| sales_only_tiers | 1 |
| public_api_docs_url | https://app.castos.com/docs/api/index.html |
| 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 | 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 →
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See agent-ready picksCastos
62
/ 100 (rubric v2.0)Podcast Hosting Platforms
Flexible & Transparent Pricing — Trusted by 42,000 podcasts
5
No
$499/mo
0 / 1
Public
No
Not published
2026-05-09
Tier-based subscription
Castos pricing starts at $19/mo for the Essentials plan; paid plans go up to $990/mo for the Pro plan (annual $990/year) and $4,990/year for Castos Premium. Billed monthly or annually.
Essentials plan ($19)
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 Castos with peers
Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.Wondercraft AI
78
Podcast.co
74
Podwise
74
Podium
66
AudioHarvest
65
MakePodcast
57
Jellypod
55
Hiro.fm
54
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.