Staxly

ReadMe vs Polar

Developer hub: interactive API reference + guides with usage analytics
vs. Merchant of Record for devs — usage-based billing, MoR, 4% + 40¢

ReadMe websitePolar website

Pricing tiers

ReadMe

Free
$0. 1 project. ReadMe branding. Public docs only. Basic features. Intended for evaluation.
Free
Startup
$99/mo. 1 project. Custom domain, remove branding, 3 admins, API Explorer.
$99/mo
Business
$399/mo. Unlimited projects, SSO, usage analytics (Metrics Starter), versioning.
$399/mo
Enterprise
Custom (typically $10k+/yr). SLA, SAML, advanced metrics, large teams, localization.
Custom
ReadMe website

Polar

Pay-as-you-go
4% + 40¢ per transaction. Cheapest Merchant-of-Record. No monthly or setup fees.
$0 base (usage-based)
Enterprise
Custom. Volume discounts for high-growth teams.
Custom
Polar website

Free-tier quotas head-to-head

Comparing free on ReadMe vs payg on Polar.

MetricReadMePolar
No overlapping quota metrics for these tiers.

Features

ReadMe · 15 features

  • API ReferenceOpenAPI → interactive reference.
  • ChangelogVersioned release notes.
  • Custom BrandingLogo, colors, fonts.
  • Custom Domaindocs.yourco.com.
  • Discussion ForumDeveloper community.
  • GuidesMarkdown-style conceptual docs.
  • Interactive TutorialsGuided walkthroughs.
  • LocalizationMulti-language docs (Enterprise).
  • MetricsAPI usage logging + analytics.
  • RecipesMulti-step tutorials.
  • SearchFull-text search.
  • SSOSAML + OIDC.
  • Suggested EditsCommunity-contributed edits.
  • Try It ConsoleIn-browser request runner.
  • VersioningMulti-version docs.

Polar · 15 features

  • Customer PortalSelf-serve subscription management.
  • Feature FlagsSimple flag mgmt tied to subscription tiers.
  • Framework AdaptersNext.js, BetterAuth, TS, Python, Laravel, Ruby, 11+ more.
  • Fraud ProtectionChargeback + fraud handling included.
  • GitHub Sponsors ImportImport existing sponsors to Polar.
  • Global Tax ComplianceVAT/GST/sales tax filed by Polar.
  • Hosted CheckoutPolar-hosted + embeddable checkout.
  • License KeysGenerate + validate license keys for software.
  • MeteringTrack API calls, tokens, custom units.
  • One-off PurchasesSingle purchases + digital downloads.
  • Open-Source BackendFull platform code on GitHub.
  • Sandbox EnvironmentTest transactions without charging.
  • SubscriptionsTiered plans with upgrades/downgrades.
  • Usage-Based BillingEvent ingestion → meter → invoice.
  • WebhooksResource events with HMAC signatures.

Developer interfaces

KindReadMePolar
CLIrdme CLI
SDKMetrics SDKpolar-sdk-python, @polar-sh/better-auth, @polar-sh/nextjs, @polar-sh/sdk
RESTReadMe API v2Polar REST API
MCPPolar MCP
OTHEROpenAPI Upload, ReadMe Dashboard, ReadMe WebhooksPolar Checkout, Polar Webhooks
Staxly is an independent catalog of developer platforms. Some links to ReadMe and Polar may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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