Quantum Gateway

Status: In design · Group: Quantum infrastructure

Run a circuit on a real quantum computer from your Solana wallet.

Today, running a circuit on a quantum computer means a cloud account, a credit card and vendor SDKs. The Gateway lets a Solana user, program or AI agent pay from a wallet instead, in USDC. The program pays out only for results that pass on-chain checks.

Flow: from request to settlement

Request. You send the circuit, shot count, the QPU you want and a USDC payment. The payment goes into an escrow account with the circuit hash.
Run. The gateway relayer submits that exact circuit to the QPU through Amazon Braket or IBM Quantum.
Deliver. The relayer posts a bb84 proof receipt (job ID hash, backend, circuit hash, counts hash) and the counts.
Check. The gateway program checks on-chain that the circuit is the one paid for, the counts match the receipt, and the score is above the threshold you set.
Settle. If every check passes, escrow pays the relayer. If a check fails or nothing arrives before the deadline, you reclaim your funds.

Honest about trust: what Solana checks

The circuit that ran is the one that was paid for
The counts are the ones the receipt records
The counts score as shown (fidelity / XEB)
Payment is released only if all of that holds

Not proven on-chain: that the job ran on quantum hardware. The relayer is trusted on that, and small circuits can be simulated classically.

The on-chain checker is a classical circuit simulator. It checks QPU results; it is not quantum computing on Solana.

Who it's for: quantum access with only a wallet

Audience	Why
Solana users	Real QPU access with only a wallet. No cloud account, card or vendor SDK.
Programs	A QPU result the chain has checked before your program acts on it.
AI agents	Pay per job with no API keys.
Researchers	Publish QPU results anyone can check in the explorer.

Pricing

Item	Value
Payment token	USDC
Gateway fee	{{GATEWAY_FEE}}
Price per shot / job	{{GATEWAY_PRICE_PER_JOB}}
Refund deadline	{{GATEWAY_DEADLINE}}

Status: built on pieces that already work

The Gateway builds on bb84's on-chain circuit simulator and QPU job receipts, both running on Solana devnet.

Working today

On-chain circuit simulator and scoring (qsim)
QPU job receipts (bb84 proof)
Submitting to and fetching from Amazon Braket
Circuit converter from OpenQASM
bb84 explorer

Building next

Gateway program: request, escrow, deliver, refund
Relayer service
CLI and an explorer Gateway page
CPI helper crate for other programs
Blinks and agent payments

Hardware: 12 QPUs to choose from

Superconducting and trapped-ion processors through IBM Quantum and Amazon Braket. On-chain checking covers up to 11 qubits in one transaction, and up to 20 across transactions. See Hardware and the explorer at https://explorer.bb84.sh.

solana-qsim · bb84 RNG · All products