1F is a forensics-first API. Cross-chain investigation primitives — bridge tx pairing, fund-flow tracing, mixer correlation, behavioral fingerprinting — that return in single-digit milliseconds. Used by compliance teams, on-chain investigators, and crypto fund risk desks.
Paste a hack tx hash. Watch 1F identify the bridge, find the destination on the other chain, score the confidence — in under 100 ms. Then run it against your own investigations.
Open the live demo →Source tx → bridge contract → destination tx on the other chain. Per-bridge windows (LayerZero 3 min, Wormhole 30 min, Plasma 7 days). Confidence-scored.
BFS forward across all chains. Highlights bridge hops. Ranks counterparties by risk. Returns a tree the dashboard renders as an animated d3 graph.
Probabilistic deanonymization. Matches deposits and withdrawals by denomination tier and timing window. Honest "investigative lead, not evidence" labeling.
"Find me 20 wallets that behave like this Lazarus address." 16-dim feature vector + cosine ANN. New unflagged wallets surface automatically.
1,000 addresses per call. Returns OFAC/UN/EU sanctions, CEX deposit detection, mixer flag, MEV flag, hacker flag. Drop-in for exchange deposit gates.
"Before this user sends, is the destination safe?" Detects sanctioned counterparty, bridge crossing, fresh address, sanctioned proximity. Verdict in 0.4 ms.
Bucketed cross-chain activity frames. Animate "tectonic" liquidity flow across ETH, BSC, Polygon, Arb, Base, Op in one timeline.
Investigation case → JSON export with SHA-256 + HMAC-SHA-256 signatures. Court-admissible. Survives audit.
Webhook-fire only when valueTier ≥ X, or only when address surfaces on a chain it's never been on. HMAC-signed delivery, retry, dead-letter.
If you also need standard JSON-RPC, swap your Alchemy URL for https://1f.ai/v2/<key>. Sub-millisecond cache hits, all 6 chains, drop-in compat for the top 30 methods. Docs. We won't lead with this — but it's free.