> For the complete documentation index, see [llms.txt](https://docs.solventus.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solventus.org/core-concepts/credits.md). # Credits Solventus bills inference in credits. A credit is worth exactly $0.01 USDC: you buy credits with USDC, then spend them on requests. The point of having credits at all is to decouple day-to-day spending from on-chain settlement. Instead of your wallet prompting for a USDC transfer on every message of a conversation, you deposit once and draw the balance down across as many jobs as you like, approval-free. *** ## Properties at a glance | Property | Value | | ---------------- | --------------------------------------------------------- | | Value | 1 credit = $0.01 USDC | | Purchased with | USDC (SPL token) on Solana | | Transferable | No; credits are bound to the purchasing wallet | | Expiry | Never | | Minimum purchase | 100 credits ($1.00 USDC) | | Refundable | Yes; unspent credits can be withdrawn as USDC at any time | The non-transferability is deliberate. It rules out a secondary credit market and keeps the accounting trivial: one wallet, one balance. *** ## Funding your balance **In the web app:** 1. Connect a Solana wallet (Phantom, Solflare, or Backpack) at `solventus.org/app` 2. Choose "Add credits" in the top navigation bar 3. Enter how much you want 4. Confirm the USDC transaction in your wallet Your USDC goes straight to the `job_escrow` program, which books the balance under your wallet address. The deposit's network fee is covered by Solventus through its fee payer, so SOL is never needed. With Solana confirming blocks every \~400ms, the balance typically reflects the deposit within a second or two. **Through the API:** There is no purchase endpoint. Credits are funded from the web app or with a wallet payment QR. **With a payment QR:** The purchase screen can produce a Solana Pay QR code for any compatible mobile wallet. Scanning it pre-fills the exact USDC amount and the deposit address of the `job_escrow` program. *** ## Pricing tiers | Tier | Model range | Cost per request | | -------- | --------------------------- | ------------------ | | Lite | 1B to 3B parameter models | 2 credits ($0.02) | | Standard | 7B to 8B parameter models | 8 credits ($0.08) | | Pro | 13B to 27B parameter models | 18 credits ($0.18) | | Max | 70B+ parameter models | 40 credits ($0.40) | These per-request prices apply to completions of up to roughly 500 output tokens. Past that, billing moves to a rate per 1,000 output tokens: | Tier | Per 1,000 output tokens | | -------- | ----------------------- | | Lite | 1 credit ($0.01) | | Standard | 4 credits ($0.04) | | Pro | 9 credits ($0.09) | | Max | 20 credits ($0.20) | Whatever a request costs is locked in escrow up front. A failed or timed-out job returns those locked credits to your balance without any action on your part. *** ## Checking your balance **Dashboard:** The web app shows your balance in the top navigation bar, always. **API:** Call `GET /v1/account` with your API key. You get back `credits_remaining` and `usdc_value`. ```json { "wallet": "7vKxPmDhrqTnGwQeCM4tW8jY5uZbNfRsAoLdXiE29GqB", "credits_remaining": 1420, "usdc_value": 14.20, "last_topup_at": "2026-06-15T09:43:00Z" } ``` **On-chain:** The balance itself lives in the `job_escrow` program, keyed by your wallet address. Query it straight from the Solana JSON-RPC (`https://api.mainnet-beta.solana.com`), or look it up on Solscan at `solscan.io`. *** ## Low balance alerts A webhook can notify you whenever the balance dips under a threshold you set; the event is `credit.low`, documented on the \[Webhooks]\( ) page. In the web app, a warning banner appears once you fall below 100 credits. *** ## Getting unused credits back out To turn leftover credits back into USDC: 1. Open Settings in the web app 2. Choose "Withdraw credits" 3. Enter an amount, or withdraw everything 4. Confirm the transaction in your wallet A single transaction moves the USDC out of the `job_escrow` program and back to your wallet. Withdrawals carry no fee, and the protocol's fee payer covers the network fee. *** ## Credits vs $SOLVENTUS These are two unrelated instruments with different jobs. | | Credits | $SOLVENTUS | | --------- | ----------------------------------- | --------------------------------- | | Purpose | Pay for inference jobs | Stake, govern, earn protocol fees | | Value | Fixed at $0.01 USDC | Market price | | Earned by | Purchasing with USDC | Providing compute, staking | | Spent on | Inference requests | Staking (locked, not spent) | | On-chain | Balance in the `job_escrow` program | SPL token balance | Using Solventus requires no $SOLVENTUS, and providing compute requires no credits. The two never intersect. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. 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