B2B · API v1

Screening API: counterparty check in one call

For exchangers, P2P services, Telegram/TON bots and OTC desks that need attestation-grade screening without enterprise pricing. One POST returns a risk zone with facts you can show a client or a compliance officer.

What one call returns

Risk zone

red / amber / green: a client-readable verdict built on the same model as our checker and certificates.

Tether blacklist

A live contract fact (isBlackListed / freeze) on ETH, TRON and Solana.

Sanctions

Chainalysis on-chain oracle across 6 EVM chains + the OFAC list for TRON/Solana.

Scam signals

Open threat-intel databases + our community reports (fresh CIS P2P scam intel the big vendors don't have).

Behavioral facts

Address age, USDT balance, attribution (exchange/service label), pattern flags: fresh/transit/fan-in.

The call

POST https://onyxprotocol.trade/api/v1/screen X-Api-Key: onyx_… Content-Type: application/json {"address": "TXk3…"} → 200 { "ok": true, "chain": "tron", "zone": "amber", "blacklisted": false, "sanctions": {"hit": false, "screened": ["ETH","BSC","POLYGON","ARBITRUM","OPTIMISM","AVAX"]}, "scam_db": false, "community_reports": 2, "flags": ["fresh_address","high_fan_in"], "facts": {"age_days": 12, "balance_usdt": 3210.5, "tag": null}, "checked_at": "2026-07-02T…" }

Authentication uses the X-Api-Key header. The response is JSON and takes 1-3 s (up to 15 s for a cold address).

Pricing

Tier	Price/mo	Checks/mo
Pilot	0	100
Start	$29	3 000
Scale	$99	15 000

Payment in USDT (TRC-20). Keys are issued after contact: message us on Telegram or leave a request. Enterprise volumes, monitoring webhooks and SLA are negotiable.

Get a key (Telegram) Leave a request

Free Scam/Freeze Feed (no key)

An open feed for wallets, bots and researchers: community-reported addresses + fresh on-chain USDT freezes. Free forever; the only condition is attribution, so link Onyx AML as the source. GET, JSON, updated daily.

GET https://onyxprotocol.trade/api/v1/scamfeed → 200 {"community_reports":[…], "recent_freezes":[…], "license":"…attribution…"}

Honest limits

We screen public risk markers via keyless sources. A green zone means 'no markers found', not 'guaranteed clean', and this is written into every API response. We store no PII and never log your users' IPs; we keep only the address, chain and result.

Free preliminary case assessment

Describe your situation and we will give you an honest assessment: what is realistically possible, how long it takes and what it costs. No "guaranteed unlocks": they do not exist, because the decision sits with compliance.

CASE INTAKE · FREE ASSESSMENTLIVE