Transmute · Pricing

Simple, usage-based pricing

Six self-serve tiers plus Enterprise. Included volumes and rate limits come straight from the engine's plan table; prices are shown in your selected currency — USD, EUR, or GBP — billed monthly, and exclude tax.

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Billing currency

Billed in the selected currency; bank debit available for USD (ACH), EUR (SEPA), GBP (Bacs).

Free / Dev

$0 USD / €0 EUR / £0 GBPforever
  • 1,000 conversions / mo
  • Hard stop at the cap · Hard stop at the cap · Hard stop at the cap
  • 5 rps sustained · burst 10
  • All conversion, normalize & validate endpoints
  • 1,000 live conversions / month; test keys draw a separate one-time 250-request pool
  • No card required

Micro

$29.99 USD / €28.99 EUR / £23.99 GBP/ month
  • 5,000 conversions / mo
  • $7.50 / 1,000 overage · €7.10 / 1,000 overage · £6.00 / 1,000 overage
  • 10 rps sustained · burst 20
  • Metered overage, never blocked at the cap
  • Idempotency + rate-limit headers
  • Email support

Small

$49 USD / €47 EUR / £39 GBP/ month
  • 10,000 conversions / mo
  • $6.12 / 1,000 overage · €5.80 / 1,000 overage · £4.90 / 1,000 overage
  • 15 rps sustained · burst 30
  • Metered overage, never blocked at the cap
  • Idempotency + rate-limit headers
  • Email support

Starter

$99 USD / €95 EUR / £79 GBP/ month
  • 25,000 conversions / mo
  • $4.95 / 1,000 overage · €4.70 / 1,000 overage · £3.96 / 1,000 overage
  • 25 rps sustained · burst 50
  • Metered overage, never blocked at the cap
  • Batch + signed webhooks
  • Email support

Scale

$999 USD / €949 EUR / £799 GBP/ month
  • 2,000,000 conversions / mo
  • $0.62 / 1,000 overage · €0.60 / 1,000 overage · £0.50 / 1,000 overage
  • 500 rps sustained · burst 1000
  • Scale is billed by bank direct debit (ACH / SEPA / Bacs).
  • High-volume throughput (500 rps sustained)
  • Batch + webhooks + connectors
  • Priority support

Enterprise

Customcloud or on-prem
  • On-prem / self-hosted license (unlimited within license)
  • Custom SLA, SSO, dedicated support
  • BYO BIC directory + private connectors

Custom volume + SLA · Volume pricing

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What counts as a conversion?

One billable conversion is a single successful call to /v1/convert, /v1/normalize, or /v1/validate, counted against your monthly quota. Auth, rate-limit, and quota rejections are never billed. The Free tier hard-stops at its cap, while paid plans meter any overage.

Prices shown exclude tax; applicable tax is calculated at checkout. EU/UK business customers can enter a VAT ID for reverse charge.

Pricing questions

What happens at the Free cap?

The Free tier hard-stops at 1,000 live conversions/month; further calls return HTTP 429 until the UTC month resets. Test keys do not touch the monthly cap: every account gets a separate one-time pool of 250 test requests, shared across all its test keys and never resetting.

How does overage work?

Paid plans never block at the cap. Usage beyond the included volume is metered and billed per 1,000 conversions at the plan's overage rate — in USD from $7.50 per 1,000 on Micro down to $0.62 per 1,000 on Scale, tapering as your committed volume grows. EUR and GBP rates are shown on each plan above.

Which currencies can I pay in?

Transmute bills in USD, EUR, or GBP. Pick your currency above and each plan shows its price and overage rate in that currency. Card is the default payment method, and bank direct debit is available as an option on every paid plan (ACH for USD, SEPA for EUR, Bacs for GBP).

How does payment work on the Scale plan?

Scale is billed exclusively by bank direct debit in your billing currency: ACH for USD, SEPA for EUR, Bacs for GBP. Card payments are not available on Scale. Before upgrading, you add your bank account in the dashboard (a one-time mandate setup); that account is then used for the upgrade and all renewals. Every other paid plan accepts card or bank debit, whichever you prefer.

Can I self-host?

Yes. Enterprise on-prem runs in license mode: unlimited within the license, rate limiting preserved, on your infrastructure. Contact us for terms.

Which plans are purchasable today?

Free, Micro, Small, Starter, Growth, and Scale are self-serve: start or change them in the dashboard. Enterprise (custom volume, SLA, on-prem) is contact-us.

How is tax handled?

Prices exclude tax. Stripe Tax calculates and adds any applicable sales tax or VAT at checkout based on your location. EU and UK business customers can enter a VAT ID for reverse charge.

Start converting today

Free tier: 1,000 live conversions a month, no card required.

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