Spend limits
Set per-transaction, daily, and monthly caps. The agent can pay autonomously, but never beyond the budget you define.
For AI agents
Wallets & payments for AI agents
Give an AI agent its own spend-capped wallet, and accept agent payments via x402. Machine-speed settlement in USDT & USDC, no cards, no sign-ups.
Agent wallets
Let agents spend, within your limits
A delegated wallet that pays on its own, bounded by the policy you set.
Address allowlist
Restrict the agent to a list of approved destinations, so funds can only ever go where you allow.
Main wallet untouched
The agent gets its own sub-wallet funded from your main balance. Your company wallet is never exposed.
Full audit log
Every agent payment is recorded, so you always see exactly what your agents spent and where.
Autonomous pay
Via the API, an agent calls pay and settles in USDT or USDC with no human approval. The limits are the guardrail.
Gasless
Agents never need to hold BNB. Sendbase sponsors the network gas so payments just work.
Accept agent payments with x402
x402 turns any API into something an AI agent can pay for by the call. A resource server returns an HTTP 402 Payment Required with the price, the agent pays in USDT or USDC to a generated address, and once it settles you verify and serve the response. No cards, no accounts, no human in the loop, just machine-speed settlement on-chain.
It is the cleanest way to charge autonomous agents for tools, data, and compute, and to let your own agents buy what they need from other services. Full guides and the API reference are at docs.sendbase.io.
How it works
Provision an agent wallet in three steps
- 1
Provision a wallet
Create an agent sub-wallet from your business account, funded from your main balance.
- 2
Set the policy
Choose per-transaction, daily, and monthly caps and an address allowlist. The limits are the guardrail.
- 3
Let it pay
Give the agent an API key. It pays in USDT or USDC on its own, within your limits, and every payment is logged.
What agents can do
Payments built for autonomous software
Buy tools & compute
Let an agent pay for APIs, data, and compute on its own, within a budget you control.
Charge per call
Meter your own API with x402 and get paid by agents per request, with no accounts or cards.
Agent-to-agent
Let agents settle with each other in stablecoins at machine speed, on-chain and final.
Fleet budgets
Run many agents, each with its own capped wallet, and see exactly what every one of them spent.
FAQ
Agent questions, answered
Yes, within the limits you set. The agent gets a spend-capped wallet with per-transaction, daily, and monthly caps plus an address allowlist, so it can pay autonomously but never beyond your budget. The main company wallet stays untouched.
x402 is a standard for machine-payable APIs using HTTP 402 Payment Required. Return a 402 with a price, the agent pays USDT or USDC to a generated address, and once it settles you serve the response. No cards, no sign-ups.
USDT and USDC (BEP-20) on BNB Smart Chain. Settlement happens on-chain in seconds and is verifiable on BscScan.
See it in action
An agent wallet with real limits
Build with agent payments
Create a business account, provision an agent wallet, and start settling in USDT and USDC.