generate only for a dedicated spend key.
To bill hosted verification through your product, complete Sell access. Field reference: Agent concepts.
MCP
1
Check
neus_context → neus_agent_link with both agentWallet and agentId. Done if linked: true.2
Create
neus_agent_create when results are missing.3
Finish
Follow
next_action. Use generate only for a dedicated spend key.4
Confirm
neus_agent_link until linked: true.SDK
For a dedicated agent wallet, keep the identity result from the agent-signed step, then build a delegation-only hosted callback:
Schemas:
docs/verifiers/schemas/
Agent that pays
To let an agent pay for metered APIs on its own, give its authority a spend cap and the payments scope, then let it settle pay-per-call requests:- Grant authority with
scope: 'payments:x402',allowedPaymentTypes: ['x402'], and amaxSpendcap. See Agent authority. - The agent calls your priced endpoint; a
402returns the price. - The agent pays and retries with a
PAYMENT-SIGNATUREheader. Full flow: Pay per call.
maxSpend cap is enforced as a hard stop, so the agent cannot exceed its budget.
Related
Agents overview
Start here.
MCP overview
Tool list and auth.
