API Pricing

Pay per request with USDC on Base. No subscriptions, no minimums.

Ordian Mail uses x402 micropayments — you pay exactly what you use, per request. Prices are in USD, settled in USDC on the Base network.

💡 TipMost operations cost fractions of a cent. An agent that creates an inbox, sends 100 emails, and checks messages 50 times would cost about $1.20 total.

Per-request pricing

Action	Endpoint	Price
Create inbox	`POST /v1/inboxes`	$0.10
Renew inbox	`POST /v1/inboxes/:id/renew`	$0.10
List inboxes	`GET /v1/inboxes`	$0.002
Delete inbox	`DELETE /v1/inboxes/:id`	Free
Send email	`POST /v1/send`	$0.01
List messages	`GET /v1/inboxes/:id/messages`	$0.002
Read message	`GET /v1/messages/:id`	$0.002
Delivery status	`GET /v1/messages/:id/status`	$0.002
Register webhook	`POST /v1/webhooks`	$0.05
List webhooks	`GET /v1/webhooks`	Free
Webhook deliveries	`GET /v1/webhooks/:id/deliveries`	$0.002
Retry delivery	`POST /v1/webhooks/deliveries/:id/retry`	$0.002
Register domain	`POST /v1/domains`	$1.00
Verify domain	`POST /v1/domains/:id/verify`	Free
List domains	`GET /v1/domains`	Free
Suppression list	`GET /v1/suppression`	$0.002
Check suppression	`GET /v1/suppression/:addr`	$0.002
Remove suppression	`DELETE /v1/suppression/:addr`	$0.002
Service metrics	`GET /v1/admin/metrics`	$0.002
Health check	`GET /health`	Free

Cost examples

Light usage agent

1 inbox + 10 emails/day + 20 message reads/day

~$3.34/month

Active agent

1 inbox + 100 emails/day + 200 reads/day + webhook

~$42.15/month

Multi-inbox fleet

10 inboxes + 500 emails/day + custom domain

~$152/month

How payment works

Every paid request uses the x402 protocol. Your agent signs an EIP-3009 USDC authorization for the exact amount. The server verifies and settles the payment atomically with the request. No pre-funding, no accounts, no balances to manage.

Network & gas costs

Payments settle on Base mainnet (Coinbase L2) in USDC. Gas costs on Base are negligible — typically less than $0.001 per transaction, so they won't meaningfully add to your costs.

USDC contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

💡 TipYour wallet needs both USDC (for API payments) and a tiny amount of ETH on Base (for gas). See the funding guide for the easiest ways to get set up.