W System
api.wsystem.dev · 14 paid endpoints · listed 2026-10-27
Batch sanctions screening of up to 50 names against official EU, UN, OFAC SDN and UK lists
livelast check 26 h ago
100%valid x402 answers, 72 h
$0.05USDC received on Base, 7 days
1distinct payers, 7 days
52.2score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.wsystem.dev/company EU company registry lookup by name or registration number | $0.01 | Base |
| GET | api.wsystem.dev/eori EU EORI number validation via official EC EOS: valid/invalid, name and address when disclosed | $0.01 | Base |
| GET | api.wsystem.dev/sanctions/screen Sanctions screening of a person/company name against official EU, UN, OFAC SDN and UK lists (fuzzy match, 0-100 scores, daily refresh) | $0.01 | Base |
| GET | api.wsystem.dev/verify EU VAT number validation via official VIES (all 27 EU states + XI): valid/invalid, name, address, consultation (proof) number | $0.01 | Base |
| GET | api.wsystem.dev/einvoice/route Can I e-invoice this company? EU VAT (VIES) + Peppol Directory registration + country B2B e-invoice mandate + recommended format | $0.02 | Base |
| POST | api.wsystem.dev/einvoice/validate Validate an EU e-invoice (UBL, CII or ZUGFeRD/Factur-X PDF) against official EN 16931 and XRechnung rules; errors with rule IDs and plain-English fixes | $0.03 | Base |
| POST | api.wsystem.dev/kyb/check One-call KYB check of an EU company: VIES VAT validation + official business register + EU/UN/OFAC/UK sanctions screening -> pass/review/fail verdict ($0.045 pe | $0.045 | Base |
| POST | api.wsystem.dev/einvoice/create Create a validated EU e-invoice (UBL 2.1: EN 16931, XRechnung or Peppol BIS 3 structure) from simple JSON; totals and VAT breakdown computed | $0.08 | Base |
| POST | api.wsystem.dev/einvoice/send SANDBOX e-invoice send flow: VIES buyer check + sanctions + EN 16931 UBL create/validate + Peppol/mandate route + sandbox transport (mock, Recommand playground | $0.08 | Base |
| POST | api.wsystem.dev/company/batch Batch EU company registry lookup in official business registers (up to 25 queries per request) | $0.10 | Base |
| POST | api.wsystem.dev/eori/batch Batch EU EORI validation via official EC EOS (up to 100 per request) | $0.10 | Base |
| POST | api.wsystem.dev/sanctions/screen/batch Batch sanctions screening of up to 50 names against official EU, UN, OFAC SDN and UK lists | $0.10 | Base |
| POST | api.wsystem.dev/verify/batch Batch EU VAT validation via VIES (up to 100 per request) | $0.10 | Base |
| POST | api.wsystem.dev/ddreport Counterparty due-diligence report: VAT + business register + sanctions + EORI + GLEIF LEI + Peppol, risk flags and verdict with sources and timestamp | $0.49 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 26 h ago | api.wsystem.dev/company/batch | 402 | 142 | valid x402 v2 terms |
| 6 days ago | api.wsystem.dev/company | 200 | 485 | HTTP 200 instead of 402 |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-10-27 | 5 | $0.05 |
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x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.wsystem.dev