wtsp.dev
Route probed: GET https://wtsp.dev/v1/exists
Category: survive:dev utilities (tags: dev-utils) · Status: listing listed, probe active · Listing: 0.004 USD, 4 payers / 4 calls (30d, Bazaar) · Listed in: agentic-market, cdp-bazaar
Last probe: 2026-10-23T14:18:30Z (12 min ago) · Recent valid 402: 2/2 · p50 3575 ms
probe-only: no paid test-buys yet. No index until 3 paid buys on 3 different days.
Badge: 
Paid test-buys
None yet.
402 challenge checks (since 2026-10-23T14:18:30Z)
1 valid 402s checked: terms consistent 1, Base USDC offered 1, price matches listing 1 (differs 0), payTo changed vs previous probe 0.
Unpaid probes (newest first, up to 200; raw receipts are kept 7 days, then in the archive)
| Receipt | UTC time | Method | Status | Valid 402 | ms | Listed amount (atomic) | Quoted amount (atomic) | Quoted payTo | Header bytes | Response sha256 | Signed | Route | Checks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 999c3dd39205a2c52715 | 2026-10-23T14:18:30Z | GET | 402 | yes | 3575 | 4000 | 4000 | 0x539d036a… | 2824 | 0136d66aa8e0e67b | per-receipt | primary | terms ok · Base USDC |
| 105dc9310cc74d3f6641 | 2026-10-23T12:43:10Z | GET | 402 | yes | 321 | 4000 | 4000 | 0x539d036a… | 2824 | 0136d66aa8e0e67b | snapshot | primary |
Other listed routes
https://wtsp.dev/v1/existsWhether 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 t (cdp-bazaar)https://wtsp.dev/v1/profile/fullEverything /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 t (cdp-bazaar)https://wtsp.dev/v1/profileWhether 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 a (cdp-bazaar)https://wtsp.dev/v1/carrierThe 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 zo (cdp-bazaar)
Seller? Reply or dispute. Amounts are in the asset's atomic units (USDC: 6 decimals).