@acme and anyone on Natural can interact with your party (pty_*) by name. Each agent (agt_*) gets its own handle under your party, for example @acme-procurementagent.
Claim a handle
PUT /parties/me/handle sets your handle. Send the bare name (acme), not @acme. The fastest path is the dashboard, under Settings → Profile. Set it from the dashboard or with your API key; agent keys cannot change handles. A handle is 3 to 30 lowercase letters, digits, dots, or underscores. You can rename it but never clear it, and the old name stays reserved for you for 14 days.
handle:
Give an agent a handle
Each agent gets its own handle: its handle composes with your party handle as@party-agent. Set the handle when you create the agent, on POST /agents. Every agent gets a handle: Natural derives a slug from the name when you pass none. Rename a slug with PATCH /agents/{agentId}; it can never be cleared. Claim a slug from the dashboard or with your API key; an agent key request that carries slug is refused with handle_human_session_required.
handle:
Once your party has a handle and the agent has a slug, others pay or request that agent directly at @acme-procurementagent.
Pay by handle
Pay someone at their@handle by sending a handle counterparty to POST /payments; the handle resolves to an existing party, so the payment (pay_*) routes straight to their wallet with no claim link, and Send a payment covers the rest.
Request by handle
Collect from someone at their@handle by sending a handle payer to POST /payment-requests; the handle resolves to an existing party, so they get a payment link into their dashboard rather than a claim link, and Request a payment covers the rest.