OnlyFans API Cost
The cost of an OnlyFans API integration comes down to one question: how many successful calls will your app make per month? ofapis is metered by credit, not by seats, so the bill tracks the work your code does rather than the size of your team. This page explains the model and how to forecast spend — for the plan table itself, see pricing.
What one call costs
One successful call — a 2xx response with data — costs exactly one credit. Reads and writes cost the same; there is no premium tier of endpoints. Critically, failed calls are free: if a request fails because a session expired, an account is inactive, or OnlyFans returns an upstream error, it comes back as a 4xx/5xx and is never charged. You are only billed for work that actually succeeded, and every debit shows in a real-time ledger.
Why per-call, not per-seat
Seat-based "unlimited" pricing hides its cost in per-account fees that grow with an agency roster. Per-call pricing keeps the bill proportional to activity: a dormant creator costs nothing, and a busy one costs in line with its traffic. The free-failures rule also means OnlyFans-side outages don't land on your invoice.
Estimating your monthly cost
Because credits map one-to-one to actions, you can size a plan straight from your workflow. Two facts drive most of the math:
- A mass DM to a segment is one HTTP request but is billed per recipient —
recipientCount × perRecipientWeight, one credit per fan by default. Runpreviewto see the cost before triggering. - Webhooks bill on delivered events, so replacing polling with push removes thousands of empty poll charges.
| Workload | Approx. credits / mo |
|---|---|
| One creator, event-driven via webhooks | 2,000–8,000 |
| One creator, active messaging bot polling | 30,000–60,000 |
| Weekly mass DM to 3,000 fans | ~12,000 (campaign spend alone) |
| Small agency, 5 creators, mixed automation | 80,000–150,000 |
Campaign volume is usually the line that decides your plan: a single weekly blast to a mid-sized audience can outweigh all of your day-to-day API traffic combined.
The single biggest cost lever is polling. Checking one chat every minute is ~43,000 calls a month on its own; moving that path to webhooks can cut it by an order of magnitude.
Mapping cost to plans
| Plan | Price | Credits / mo | Effective ceiling |
|---|---|---|---|
| Free | $0 | 250 | Prototyping |
| Starter | $39 | 30,000 | One active creator |
| Pro | $159 | 120,000 | Up to 5 creators |
| Enterprise | Custom | Unlimited | High-volume + SLA |
Credits refill monthly. If you exhaust them mid-month, calls are declined until the next refill or an upgrade — nothing is charged past your plan, and upgrades apply immediately.
Keep the bill down
Prefer webhooks over polling, batch broadcasts server-side, and cache slow-changing data like subscriber lists. Together these usually move a workload down a plan tier. For the full comparison, see the pricing page or read how the API works.
FAQ
How much does the OnlyFans API cost to start?
Nothing. The Free plan includes 250 credits a month and one linked account with no credit card. Paid plans begin at $39/mo (Starter) and $159/mo (Pro); Enterprise is custom. See pricing.
Do I pay for failed API calls?
No. Only successful calls returning a 2xx with data are metered at one credit. Expired sessions, inactive accounts, and upstream OnlyFans errors return an error status and cost nothing.
What is the cheapest way to run a high-volume integration?
Use signed webhooks instead of polling and batch broadcasts server-side. Webhooks charge per delivered event rather than per empty poll response, which is the largest single cost driver for most bots.
Is a mass DM billed per recipient?
Yes. Triggering a mailing debits recipientCount × perRecipientWeight credits — one per fan by default — even though the dispatch itself is a single HTTP request. Call the mailing preview endpoint first: it returns the recipient count and estimated cost before you commit.