Accounts, plans and billing

This section shows you how to get an account, pay for it, mint the right kind of API key and keep an eye on what you are spending. By the end of it you will know which of the two SynapseX products you are paying for, which key format that product issues, and where its spending is reported.

Read this page first. Almost every billing question in SynapseX comes down to one fact: SynapseX is two products with two separate accounts, two separate wallets and two incompatible key formats.

What is the difference between chat.synapsex.ai and platform.synapsex.ai?

Are accounts, credits and keys shared between the two products?

No. They are completely separate systems.

• A SynapseX Chat subscription grants you nothing on the API platform. Even on the Business plan, an API-platform workspace still needs its own prepaid credits before a single API call will succeed.
• API-platform credits grant you nothing in SynapseX Chat. They do not raise a chat plan’s monthly message or token allowance.
• The two credit balances use different units and no balance ever moves between the products.
• Signing up on one site does not create an account on the other. If you want both, you sign up twice.

Which API key do I need?

The two key formats are not interchangeable, and pasting one into the other product simply fails authentication.

• sxc_… — minted in SynapseX Chat under Settings → API Keys. Scope compute. Use it for SynapseX Desktop and the SynapseX CLI. See Personal API keys for Desktop and CLI.
• sk-synapsex-… — created in the API-platform console under /dashboard/api-keys. Scope chat:write. Use it for the Platform API. See Manage workspace API keys.

Full background on both formats and what a scope actually enforces: API keys and scopes.

Check that the chat plan catalog is live

The chat plan catalog is served from a public endpoint, so you can confirm the current plans, limits and prices yourself without an account:

curl -s https://chat.synapsex.ai/api/billing/plans

You get back a JSON object with a plans array. Each entry carries:

• id — the plan identifier (free, go, plus, pro, business).
• name, description and, on some plans, a badge.
• limits — messagesPerMonth, tokensPerMonth, customAgents, knowledgeBases, fileStorageGB and teamMembers. A value of -1 means unlimited.
• prices.monthly and prices.yearly, each with a USD and an EUR block containing amount and amountCents.

The response also contains Stripe price identifiers. Ignore them — they are implementation detail, they change, and they are of no use to you.

To read just the plan ids and monthly USD amounts:

curl -s https://chat.synapsex.ai/api/billing/plans \
  | python3 -c 'import json,sys; d=json.load(sys.stdin); [print(p["id"], p["prices"]["monthly"]["USD"]["amount"]) for p in d["plans"]]'

Where do I see what I am spending?

• SynapseX Chat — open Settings. The Billing tab shows your current plan and your month-to-date messages and tokens against the plan quota. The Usage tab shows token consumption and estimated cost, broken down by model and by day.
• SynapseX API platform — /dashboard/usage shows total cost, tokens and requests over a window you choose, with a per-model breakdown and the most recent requests. /dashboard/credits shows your wallet balance, your monthly spend limit and the credit packs.

Pages in this section