The production layer for x402 + MCP.
Veyline is the economic control and assurance plane for autonomous commerce. It sits around the protocols your agents already use — x402, MCP, and more — and makes every economic operation safe, provable, and recoverable: intent checked, payment verified, settlement confirmed, execution exactly once, delivery proven, outcome recorded.
Veyline is the infrastructure that surrounds an economic operation from start to finish. When an AI agent needs to pay for something, settle a transaction, or execute a paid action, Veyline is the layer that verifies the intent is legitimate, the payment is real, the settlement actually happened, the execution ran exactly once, and the evidence is preserved.
Every operation passes policy checks before money moves. Spending limits, approved actions, and commercial terms are enforced by the platform — not left to the agent's discretion.
Veyline independently verifies payments on-chain and classifies settlement as confirmed, unconfirmed, or unknown — never guessing. Ambiguity is reported, not hidden.
When operations fail mid-flight, Veyline recovers them safely: no duplicate charges, no duplicate effects, no silent failures. Every operation has a known terminal state.
Your agents need to pay for APIs, data, and services. Veyline gives them a safe way to do it — with policy guardrails, spend limits, and proof of every transaction.
Charge per call with x402 and let Veyline handle the hard parts: payment verification, settlement certainty, duplicate protection, and auditable evidence.
Building marketplaces, agent economies, or machine-to-machine payment flows? Veyline is the control plane that keeps the economics correct when no human is watching.
The x402 protocol solved how software pays. Nobody solved what happens after it pays. Teams building agent commerce today face the same failure modes, over and over:
A retry after a network timeout becomes a second charge. A copied transaction hash becomes a second claim. Without atomic replay protection, the same money gets spent twice.
Was the payment actually settled, or just submitted? Most integrations treat "sent" as "done." When settlement is ambiguous, operations proceed on hope — and hope isn't an accounting method.
Payment succeeded but the response never arrived. The operation is done, the money is gone, and the caller has no way to find out what happened. Retry, and you risk paying again.
When something goes wrong — and it will — there's no tamper-evident record of what was authorized, what was paid, what was delivered, and what the outcome was. Disputes become arguments.
Every economic operation through Veyline follows the same lifecycle. Each stage is verified before the next begins, and the full trail is preserved as evidence.
Intent is checked against your policies. Preflight simulation confirms the operation is viable. Nothing executes without authorization.
Payment is verified on-chain. Settlement is classified with certainty — confirmed, unconfirmed, or unknown. Execution runs exactly once, even under retries and crashes.
Delivery and outcome are proven separately from payment. Failures recover safely. The entire operation is recorded as tamper-evident evidence you can audit later.
Veyline wraps the economic operation, not the wire format. x402 is the first live protocol. Others are on the roadmap — the assurance model is the same regardless of how the payment travels.
Every Veyline customer gets the full safety model on every plan. Protection against duplicate payments, uncertain settlement, and silent failures is not something we sell as an upgrade.
Purchase access below. You receive a scoped API key bound to your account and your plan's entitlements.
Use the callx402 by Payload CLI for quick operations, or call the REST API directly from your agent or application.
Set your policies and spend limits. Your agents operate autonomously inside them — every operation verified, settled, and evidenced.
# callx402 by Payload — powered by Veyline callx402 pay --to api.example.com/data --amount 0.05 --asset USDC # Veyline verifies intent, policy, payment, settlement — # then returns proof of execution and outcome. # Or via REST: curl -X POST https://api.veyline.io/v1/operations \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"intent": "purchase", "target": "api.example.com/data", "max_spend_usdc": "0.05"}'
Endpoint hostnames shown are illustrative. Production API details are provided with your credentials.
Every plan includes the full safety foundation — duplicate protection, settlement certainty, evidence integrity, and safe recovery. Plans differ on monthly operations volume and detailed usage access.
Operations are metered against your plan's included allocation in real time: requests beyond it are throttled (429), not billed. Usage overages and protected-volume (basis-point) fees are disabled by design today.
Veyline is a metered subscription. Pick a plan, check out securely through Stripe, and your API key is issued automatically — shown once on the confirmation page, ready to use immediately.
Select a tier above. Every plan includes the full safety foundation — duplicate protection, settlement certainty, evidence integrity, and safe recovery.
Click Get Access to open a secure Stripe checkout for your plan. A fresh account is created for you automatically — no signup form, no waiting.
After payment, your entitlement is created and your API key is shown once on the success page. Store it safely — keys are stored hashed and shown only at creation.
Set your policies and spend limits. Your agents operate autonomously inside them — every operation verified, settled, and evidenced against your plan's included operations.
Subscriptions renew monthly. Requests beyond your plan's included operations are throttled (429), never silently billed. Prefer to pay in USDC on Base? Use the Enterprise contact form and we'll arrange it. By subscribing you agree to our Terms of Service and Privacy Policy.