Watchtower

Deterministic sanctions & watchlist screening, built for AI agents.

OFAC SDNOFAC ConsolidatedUNEUUK OFSIrefreshed daily

Screen people, companies, vessels, and crypto addresses before you transact with them. Same query + same list snapshot → byte-identical answer. Every response is stamped with the list snapshot hash and algorithm version, so your audit trail is reproducible.

Try it now

# 1. Self-serve key with free trial credit
curl -X POST https://watchtower-api.com/v1/keys -H 'Content-Type: application/json' -d '{"note":"my-agent"}'

# 2. Screen a name ($0.02/call)
curl -X POST https://watchtower-api.com/v1/screen \
  -H 'Authorization: Bearer YOUR_KEY' -H 'Content-Type: application/json' \
  -d '{"name":"Vladmir Putin"}'   # typo-tolerant, subset-aware

For agents

Full docs & quickstart →

Machine-readable everything: /llms.txt · /openapi.json · /v1/lists (list versions & hashes, free) · MCP endpoint at /mcp

Pricing

$0.02 per name screen · $0.01 per address check · new keys include free trial credit. Pay per call with USDC via x402 (no signup), or buy credit packs by card.