NumberIntel

Endpoints (8 live)

• POST /v1/batch — Bulk phone list scrub: up to 100 US numbers per call. Per-number validity, in-service possibility, line type (mobile/landline/VoIP), SMS likelihood, carrier and timezone, plus summary counts. Clean SMS and outreach lists before sending. (0.5 USDC on Base)
• GET /v1/carrier — US phone carrier lookup: carrier of record, line type (mobile / landline / VoIP / pager), whether the number can be in service at all, rate center and risk hints for any US or US-territory number. NANPA public numbering data refreshed weekly; block-level, so ported numbers keep their original carrier. (0.02 USDC on Base)
• GET /v1/number — Phone number static intelligence: E.164 normalization, format validity, NANP plausibility, geography, timezones, current local time for US/CA numbers. (0.02 USDC on Base)
• GET /v1/attest/preflight — x402 conformance preflight of any endpoint: parses the 402 envelope, lints accepts[] (atomic units, payTo, network), reports the quote, Bazaar extension presence and problems. No purchase is made. (0.02 USDC on Base)
• POST /v1/attest — Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, and return an EIP-191-signed attestation embedding the on-chain USDC receipt. Proof-of-real-delivery for directories, reputation systems and sellers. (0.25 USDC on Base)
• GET /v1/npa — NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses. (0.02 USDC on Base)
• GET /v1/npa — NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses. (0.02 USDC on Base)
• GET /v1/number — Phone number static intelligence: E.164 normalization, format validity, NANP plausibility checks, geography, timezones and current local time for any US/CA number. (0.02 USDC on Base)