AgentaOS
vs
FastSpring
AgentaOS vs FastSpring
FastSpring does not publish its fees: you request a quote, with a business email, and sales sets a revenue share by volume. AgentaOS publishes one fee per sale, 4.5% + €0.50, and you can start free today. Both are the legal seller, so VAT, sales tax and invoices are handled. FastSpring has the longer enterprise track record; AgentaOS is self-serve and pays out in countries Stripe does not reach.
Panche Isajeski, Founder of AgentaOS · 19+ years in payments·Pricing checked At a glance
The practical difference is how you start. With AgentaOS you sign up, verify and sell, at a fee you can read on the pricing page. With FastSpring you fill in a quote form and agree a rate with sales. If you sell at high volume and want negotiated terms, that conversation can be worth having; if you want to sell this week, start with the published price.
| AgentaOS | FastSpring | |
|---|---|---|
| Model | Merchant of Record (legal seller) | Merchant of Record (legal seller) |
| Fee per card sale | 4.5% + €0.50 all in, published | Not published; quoted by sales (revenue share by volume) |
| Monthly fee | None (Pro €49 for 4% + €0.40) | Not stated on the pricing page |
| Sign up | Self-serve, any email, start free | Quote form; business email required |
| Minimum volume | None | None stated |
| Payouts | Bank or wallet in 86 countries, including Kosovo | Fees withheld from payouts; schedule in your agreement |
| MCP server for Claude, ChatGPT, Cursor | ✓ details | Check fastspring.com |
| Pricing Intelligence (score out of 100 + fixes) | ✓ | - |
FastSpring’s pricing page and FAQ, checked 17 October 2026; AgentaOS pricing checked 15 October 2026. Review sites quote FastSpring rates, but FastSpring itself does not publish one, so we do not repeat those figures. Always check fastspring.com and agentaos.ai for current pricing.
Where each is stronger
AgentaOS
- A published fee per sale; start free without a sales call.
- Legal seller: VAT, sales tax, invoices and chargebacks are ours.
- Payouts in 86 countries, including where Stripe does not pay out.
- Your AI agent runs billing over MCP; Pricing Intelligence included.
Best for: founders who want to start today at a known price, sellers in countries Stripe does not serve, and anyone who builds with AI agents.
FastSpring
- A long-running merchant of record for software and SaaS companies.
- Custom, negotiated rates, with discounts for ACH and wire payments.
- No minimum transaction volume.
- Built for established teams that want a sales relationship.
Best for: established software companies with volume that want negotiated pricing.
Common questions
How much does FastSpring cost?
FastSpring does not publish a rate. Its pricing page describes a revenue share that varies with your volume and asks you to request a quote from sales. AgentaOS publishes its fee: 4.5% + €0.50 per card sale on pay as you go, or 4% + €0.40 on Pro (€49 a month).
Can I sign up for FastSpring without talking to sales?
FastSpring's pricing page routes you to a quote form that asks for a business email address and company details; personal email providers are not accepted. AgentaOS lets you start free on your own, with any email, and sell once your account is verified.
Is FastSpring a merchant of record?
Yes. FastSpring is the merchant of record for software, SaaS and digital goods, so it handles sales tax, VAT and payments as the seller. AgentaOS is also the merchant of record on every sale.
What does AgentaOS add?
A published fee, self-serve sign-up, a hosted MCP server, CLI and SDK so Claude, ChatGPT or Cursor can set up products, checkout links and subscriptions, Pricing Intelligence, which scores your pricing and ranks the fixes, and payouts in 86 countries, including ones Stripe does not serve such as Kosovo.
When is FastSpring the better choice?
For an established software company with high volume and a sales team that wants negotiated rates and enterprise features, FastSpring's long track record and custom pricing can fit better. For a founder who wants to start today at a known price, AgentaOS is simpler.
See if AgentaOS fits your case
If you run an established software business and want negotiated terms, talk to FastSpring. If you want a published price, a legal seller that handles all the tax, and to start today, start free.
Start free →Compare more: Best merchant of record in 2026 · Every Merchant of Record’s fees · AgentaOS vs Paddle · AgentaOS vs Lemon Squeezy
Sources, retrieved 17 October 2026: FastSpring pricing and FAQ · AgentaOS pricing. FastSpring may change its terms without notice; check the source before relying on this page. A comparison, not financial advice.
Merchant of Record directory
What each provider charges, read on its own price page.