Company & People
Phone number lookup
Validate a phone number and identify its carrier and line type. Priced per number.
Spot price
$0.0042per number
call-weighted across 10 of 12 priced endpoints
- Spread
- 10×
- cheapest to dearest
- Providers
- 6
- 6 hosts
- Endpoints
- 12
- 12 answered last probe
Where the offers sitLog scale. The shaded band is the middle half of the market, $0.0020 to $0.0050.
$0.0010$0.010
Every supplier below carries its index against that rate: 100 is spot, 40 is 60% below it, 310 is 3.1× it. Spot is weighted by how often each endpoint is called, so one wallet listing forty near-identical endpoints cannot move it on listings alone. The cheapest offer here is $0.0010 and the dearest $0.010.
Canonical request
| phone | string | The number in E.164 form. |
Canonical response
| phone | string | The number checked. |
| valid | boolean | Whether it is a routable number. |
| country | string | ISO 3166-1 alpha-2 code. |
| carrier? | string | Carrier name. |
| line_type? | string | Mobile, landline or VOIP. |
12 endpoints offering this capability, from 6 wallets
| Endpoint | Index | Last called | |||||
|---|---|---|---|---|---|---|---|
 Phone Validator | keyronne.com/api/phone | $0.0010 | 24 | 4 | 3 | Live | 3d ago |
Busker Phone Validator | workbot1.oddsys.org/phone | $0.0020 | 48 | 1 | 1 | Live | 14d ago |
Phone Number Validation | x402.professorsausages.com/phone-check/check | $0.0020 | 48 | 2 | 1 | Live | 41d ago |
api.x402node.dev | api.x402node.dev/validate/phone | $0.0022 | 53 | 3 | 2 | Live | 4d ago |
phone-intel | api.agentstools.dev/phone/intel | $0.0050 | 120 | 2 | 1 | Live | 26d ago |
Phone Carrier Lookup | orbisapi.com/proxy/phone-carrier-lookup-85be0c | $0.0050 | 120 | 1 | 1 | Live | 81d ago |
Phone Formatter V2 API | orbisapi.com/proxy/phone-formatter-v2-api-83fff3 | $0.0050 | 120 | 1 | 1 | Live | 79d ago |
Phone Validation API | orbisapi.com/proxy/phone-validation-api-be22c9 | $0.0050 | 120 | 10 | 3 | Live | 81d ago |
Phone Validation API | orbisapi.com/proxy/phone-validation-api-be22c9/:endpoint | $0.0050 | 120 | 9 | 1 | Live | 94d ago |
Phone Validation API | orbisapi.com/proxy/phone-validation-api-be22c9/v1/lookup | $0.0050 | 120 | 0 | 0 | Live | — |
Phone Validation API | orbisapi.com/proxy/phone-validation-api-be22c9/v1/validate | $0.0050 | 120 | 0 | 0 | Live | — |
Phone Number Validation | x402.professorsausages.com/phone-check/batch | $0.010 | 240 | 1 | 1 | Live | 41d ago |
Reading this table
- Price is what the catalog carries for one unit, per number. It is a published figure, not a quote — read the live 402 before paying.
- Index is that price against the spot rate, so it moves only with price — there is no separate sort for it, because ordering by index and ordering by price are the same ordering.
- 30d calls and payers are the upstream catalog’s own counters for that endpoint, so they measure demand, not quality.
- Status is the last liveness probe. There is no latency or uptime column yet: a single probe outcome cannot support one, and inventing a percentage from it would be worse than leaving it out.
- Settled volume per endpoint is also absent, and cannot be derived — a settlement carries the payee wallet, not the endpoint that was called, so a wallet serving forty endpoints cannot be split between them. The provider wallet’s own record is one click away on each row.
- The canonical response above is the shape Roundhouse maps each provider onto. Field mappings per provider are not published yet; today the contract is the target, not a guarantee about any one endpoint’s payload.
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will pick the best provider of this capability over the free read API. No key, no account.
GET www.roundhouse.studio/unified.json?capability=phone-intel
Show the promptHide the prompt
Using Roundhouse, compare every x402 provider of Phone number lookup and pick one for me. Weigh the price per unit against whether the endpoint answered when last probed, and say what the cheapest option would cost against the median. curl -s 'https://www.roundhouse.studio/unified.json?capability=phone-intel' The canonical request and response in that document are the shape every provider is mapped onto. Before paying, check the provider's record and read the live 402: curl -s 'https://www.roundhouse.studio/api/v0/merchants/<the payTo wallet on the offer you choose>' If you do not have Roundhouse tools or skills installed, read https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.