Data Sources
Each screening result includes a data_freshness map showing when each source was last ingested. Use GET /v1/sources to query this programmatically.
OFAC_SDNOFAC Specially Designated Nationals
United States
Every 2 hours
| Chains | Bitcoin, Ethereum, Tron, Litecoin, Monero, Zcash, Dash, Bitcoin Cash, and others |
| What's included | All cryptocurrency addresses published in the OFAC SDN Advanced XML list (sdn_advanced.xml). Includes OFAC-sanctioned entities such as Tornado Cash and ransomware groups. |
| Not included | Addresses removed from the OFAC list are soft-deleted within 2 hours of the next ingest. |
| Limitations | OFAC may mislabel chain types in edge cases (e.g., a TRC-20 USDT address labeled as BSV). The pipeline applies chain auto-detection to correct known patterns. |
EU_CONSOLIDATEDEU Consolidated Sanctions List
European Union
Every 6 hours
| Chains | Bitcoin, Ethereum, Tron |
| What's included | Cryptocurrency addresses extracted from the EU Financial Sanctions File (FSF). Addresses appear in free-text remark fields and are extracted via pattern matching. |
| Not included | Non-cryptocurrency identifiers (passports, company IDs, physical addresses). |
| Limitations | The EU list embeds addresses in unstructured text. Extraction accuracy is high but addresses in unusual formats may be missed. |
UK_CONSOLIDATEDUK Financial Sanctions List
United Kingdom
Every 6 hours
| Chains | Bitcoin, Ethereum, Tron |
| What's included | Cryptocurrency addresses from the UK FCDO Financial Sanctions Database (CSV format). Addresses appear in the "Other Information" column. |
| Not included | Non-cryptocurrency identifiers. |
| Limitations | Same extraction challenge as EU — addresses are embedded in free text. The UK list has 57K rows (one per alias per entity); each entity is deduplicated. |
COMMUNITY_BADLISTCommunity Risk Labels
Community
Every 12 hours
| Chains | Ethereum (and EVM-compatible) |
| What's included | Known bad addresses from the MyEtherWallet/ethereum-lists darklist. Covers phishing contracts, scam addresses, hack-related addresses, and high-risk entities. Labels: phishing, scam, hack_exploit, high_risk_entity. |
| Not included | Addresses on the MEW lightlist (known-safe addresses) are excluded. |
| Limitations | Community data is not subject to formal legal review. Labels reflect community consensus, not regulatory designation. Treat COMMUNITY_BADLIST labels as risk signals requiring your own verification, not definitive sanctions determinations. |
For licensing attribution and reuse terms, see the public Data Sources & Attribution page, which reproduces all required licence notices (OGL v3.0, CC BY 4.0, MIT).
A note on coverage gaps
No screening data source is complete. Sanctions lists reflect formal designations — many illicit actors operate for months or years before designation. Community labels catch more activity but are not authoritative.
A CLEAN_NO_MATCH result means the address was not found in any of our sources at the time of query. It does not mean the address is safe. Always layer API results with your own transaction monitoring, KYC, and compliance controls.
Attribution & Licensing
The Community Badlist source ( COMMUNITY_BADLIST) is derived from the MyEtherWallet/ethereum-lists repository, used under the MIT License. MIT permits commercial use but requires the copyright notice and permission notice to be preserved in all copies or substantial portions of the software. The full notice is reproduced verbatim below.
MIT License Copyright (c) 2020 MyEtherWallet Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.