the402 endpoint detail

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geospatial.openverbs.com v1 tile-bounds

https://geospatial.openverbs.com/v1/tile-bounds

answers 402

Compute the geographic bounding box (west/south/east/north in degrees) of a slippy-map tile z/x/y, plus its Bing quadkey.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
277 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:22:10.980Z (21d ago)
Category
other

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