Pay for tokens you didn’t send.
Last updated 29 August 2026 · Prices in EUR · early access
Hexum bills tokens saved — input minus what still goes to the model. Cache hits are free. No monthly cap. Usage is one person on one bill. Teams is a shared invoice for the people you invite.
Usage · early access
From €0.30 / millionFirst 20 million at €0.50. Then €0.40. Then €0.30. One person, one Stripe customer, billed at month end. Zero Data Retention included.
Turn on usage billingTeams · early access
From €0.35 / millionFirst 20 million at €0.55. Then €0.45. Then €0.35. Shared bill, email invites, pooled usage, each member keeps their own MCP key. No per-seat fee. Up to 25 people. Zero Data Retention included.
Start a teamTeams costs a little more per million than Usage. A 200 million month is €72 on Usage and €82 on Teams. Introductory rates — see the note above. Zero Data Retention is on both plans: MCP payloads are not stored. Policy: ZDR.
| Usage | Rate | On a 200M month |
|---|---|---|
| First 20M | €0.50 / M | €10.00 |
| Next 80M | €0.40 / M | €32.00 |
| Above 100M | €0.30 / M | €30.00 |
| Teams | Rate | On a 200M month |
|---|---|---|
| First 20M | €0.55 / M | €11.00 |
| Next 80M | €0.45 / M | €36.00 |
| Above 100M | €0.35 / M | €35.00 |
Method for “tokens you didn’t send”: how MBPP and HumanEval were run. ZDR: Zero Data Retention.
FAQ
How is Hexum billed?
Hexum bills tokens saved: input minus what still goes to the model. Cache hits are free. No monthly cap. No seat tax. Usage early access from €0.30 per million. Teams from €0.35 per million. See /pricing.
What is tokens saved?
Tokens in minus tokens out, when that is positive. Stripe is billed on tokens saved. Calls that do not save tokens still increment calls and the in/out counters.
Does Hexum store my repo?
No. Zero Data Retention is on Usage and Teams. MCP payloads are not stored. Hexum does not train on your code. Policy: /zdr.
Why did MCP return BILLING or AUTH?
AUTH means the key is missing, invalid, or revoked. BILLING (HTTP 403) means that key’s billing source is off: personal Usage for a personal key, or Teams billing for a team key. Turn the matching plan on at /app, or mint a key against the plan that is on.
What is Hexum?
Hexum is an MCP server for Cursor, Claude Code, and other coding agents. It sits between the agent and the model: hexum_shrink sends this turn instead of the repository, hexum_check fails the turn when architecture.hexum is broken, and you keep your editor. On MBPP, context dropped about 85% with the same tests passing.