wtsp.dev
Developer tools API on Base, paid per request with x402.
- Endpoints4
- Price per requestfrom $0.004
- Outside payers · 7d1
- Answer 402n/a
Overview
- Seller wallet
- 0x539d036a305f78388dca5fc49c27f9e29b83d315
- Chains
- Base
- Hosts
- wtsp.dev
- CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
- Developer tools2Other1Security1
- First seen
- 2026-10-11 · last seen 2026-10-11
What we observed
Endpoints
EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.https://wtsp.dev/v1/carrier
The carrier and line type of any number, from the numbering plan: the network its range was issued to, mobile, fixed line or VoIP, plus country, region, time zones and national and international formats. Works whether o…
BaseOther$0.004/ request
2026-10-10
https://wtsp.dev/v1/exists
Whether a number has a WhatsApp account, and nothing else: the cheapest way to clean a list before paying for profiles. /v1/profile gives the same answer plus the account's details. Query param: phone, with country code…
BaseSecurity$0.004/ request
2026-10-10
https://wtsp.dev/v1/profile
Whether a number is on WhatsApp and, if so: personal or business account, about text, country, linked devices and whether it runs on the Cloud API. Businesses add their public profile: name, description, categories, ema…
BaseDeveloper tools$0.006/ request
2026-10-10
https://wtsp.dev/v1/profile/full
Everything /v1/profile returns, plus the profile photo as a permanent URL and a content hash: an unchanged hash means an unchanged photo. The URL is null when the account has no photo or hides it. Query param: phone, wi…
BaseDeveloper tools$0.01/ request
2026-10-10
Evidence
Answers HTTP 402
Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.unknown
unknown. We hold no reading for this seller's endpoints.
no reading date
x402-style payments, last 7 days (Base)
x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.1outside payer
6 x402-style payments from 1 distinct payer, $1.03 USDC in the last 7 days (Base, exact read)
window ended 2026-10-11
- Payments
- 6
- Payers
- 1
- USDC
- 1.03
All USDC received at this payout address: $1.03 (includes payments that are not x402)
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-11, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
By chain
| Chain | Seller wallet | Endpoints | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0x539d036a305f78388dca5fc49c27f9e29b83d315 | 4 | unknown | 6 x402-style payments from 1 distinct payer, $1.03 USDC in the last 7 days (Base, exact read) |
One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Pricing
The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.
Claim this merchant
Sign a message from the payout address 0x539d03…83d315 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Data CC-BY-4.0, attribution: data by satohub.ai. Data as of 2026-10-11. Appearing here is not an endorsement. Check an endpoint with the doctor.