# Paygate89

> Preview API and MCP server for AI agents to purchase a 30-day Japanese mailbox Location-and-floor contract with x402 v2 exact on Solana Devnet.

## Verified facts

- Price: 55 USDC (55,000,000 base units) per Location and floor for 30 days.
- Floors: select one integer floor from 1 through 65535. A floor reserved by another active Payment Intent or occupied by another active contract is unavailable; the current contract owner may renew the same floor.
- Intent reservation: creating a Payment Intent reserves the selected floor for the intent's 15-minute lifetime.
- Environment: preview only; Solana Devnet USDC has no monetary value.
- Authentication: Preview Bearer token plus X-Paygate-Owner-Id for both REST and MCP.
- MCP: stateless HTTP at https://agent.chain.tokyo/mcp using protocol revision 2026-07-28. Tools are list_locations, get_floor_availability, create_payment_intent and list_contracts.
- Discovery: Location summaries never contain exact mailbox addresses.
- Settlement: the exact Japanese and English mailbox address and selected floor are returned only after confirmed settlement.
- KYC ordering: purchase may occur before KYC; physical mail handling requires owner KYC approval and a per-Location-and-floor forwarding destination.
- Wallet safety: callers use an external wallet; Paygate89 does not receive payer seed phrases or private keys.

## Machine-readable resources

- OpenAPI: https://agent.chain.tokyo/openapi.json
- API catalog: https://agent.chain.tokyo/.well-known/api-catalog
- MCP server: https://agent.chain.tokyo/mcp
- Health: https://agent.chain.tokyo/health

## Human entry points

- Agent service guide: https://agent.chain.tokyo/
- Account Owner guide: https://agent.chain.tokyo/owner
- Account Owner KYC: https://agent.chain.tokyo/owner/kyc

Do not infer production readiness, mainnet support, public exact addresses, or authorization for physical mail handling from this preview.