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Nexari Letter Send (Germany)
x402
Nexari Letter Send (Germany) is a paid API for AI agents from x402.nexari.cloud, paid per call via x402, $2.99/call, status unknown (last checked 2026-09-29).
Submits a previously quoted physical letter for printing and mailing via Deutsche Post within Germany, completing the two-step send flow using a quote_id.
Price / call$2.99
Success—
StatusUnknown
How this service works
Briefversand in Deutschland: gedruckt und per Deutsche Post versendet. Erst POST /letter/quote (gratis), dann mit quote_id bezahlen. Physical letter mailing within Germany. Get a free quote first.
Output
A confirmation that the letter order has been received and dispatched for printing and mailing via Deutsche Post within Germany, along with an order identifier that can be used to check delivery status via the sibling status endpoint.
Example use cases
Automated invoice mailing to German client
“We got the quote for mailing that invoice to our client in Munich — please go ahead and send the physical letter now using quote ID q_inv_9921.”
Official notice sent by post
“I need to send that formal termination notice by Deutsche Post — I already have the quote ID q_term_445, please dispatch it now.”
Agent-triggered customer letter campaign
“The quote for the letter to Mr. Weber in Hamburg is ready with quote ID q_cust_0072 — confirm and send the physical letter.”
Technical details
Endpoint
POSThttps://x402.nexari.cloud/letter/send/:quote_id?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to physically mail a letter to a recipient within Germany and have already obtained a valid quote via POST /letter/quote. This is the only endpoint in this service that actually triggers the mailing and processes the $2.99 USDC payment. Prefer this over digital communication alternatives when a physical paper letter is legally required, formally expected, or when the recipient cannot be reached digitally.
Side effects
- Invalid or expired quote_id returns an error — quotes may have a validity window
- Payment not completed or USDC balance insufficient blocks the request
- Missing required path parameter quote_id results in a 404 or 400 error
- Letter content referenced in the quote may be rejected if it violates postal content rules
- Service unavailability from the Deutsche Post integration causes a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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