the402 endpoint detail

← All endpoints

pack.openverbs.com v1 encode

https://pack.openverbs.com/v1/encode

answers 402

Serialize a JSON value into a compact MessagePack or CBOR byte stream, returned as a base64 (default), base64url or hex string, along with the byte length.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.004
Network
base
Pay to
0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
274 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:20:15.939Z (23d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fpack.openverbs.com%2Fv1%2Fencode"