# Machine and agentic

Let agents pay, inside limits you set.

Software agents now buy things and pay for services. With insimbi, an agent acts for one principal, within one mandate, and every payment it makes lands in the same record.

## Capabilities

- **Agent-readable docs**: Every page as markdown, plus llms.txt and agents.md.
- **Scoped API access**: Credentials limited to one principal and one scope.
- **Agent mandates**: Bind an agent to a principal, a spend limit and a scope.
- **Payment intent preview**: Check a request against the mandate before it runs.
- **Tool interface for agents**: MCP tools so agents work with insimbi directly.
- **Per-request payments**: Charge or pay per API call over HTTP 402, in fiat or stablecoins.
- **Agent card credentials**: Single-use or limited card credentials for agent purchases.
- **Agent protocols**: Accept agent checkouts over AP2 and ACP, verify agents with network agent programs.

## Protocols and standards

Supports: MCP, Agent Payments Protocol (AP2), Agentic Commerce Protocol (ACP), x402, Visa Intelligent Commerce, Visa Trusted Agent Protocol, Mastercard Agent Pay, Machine Payments Protocol (MPP), Universal Commerce Protocol (UCP)

## In a scenario

- [An agent paying for API calls, one request at a time](/use-cases/agent-api-payments/): Illustrative scenario.
- [A procurement agent buying from suppliers](/use-cases/procurement-agent/): Illustrative scenario.
- [A software platform billing people and agents](/use-cases/software-platform-billing/): Illustrative scenario.

Related: [Developers](/developers/)