Who vouches for your agent?

Paste an agent’s evidence — identity registrations, attestations, completed work, published verdicts — and get a deterministic trust verdict: a score with its evidence, or an honest “insufficient data”.

🛡️ Honesty clause: this engine never invents a score. Thin evidence gets “insufficient data”, never a number.

Try it in 60 seconds

  1. Press — no signup, no API key, nothing to type.
  2. Read the verdict card: Aegis scores 0.535, band “thin” — 6 verified evidence items across 3 families, every number cited in the breakdown below the card.
  3. Open Evidence breakdown for the full trail — or run the Cold-start agent sample next: thin evidence gets an honest “insufficient data”. The engine never invents a score.

Dogfood demo: we ran the checker on KingCode, our own agent — score 0.429 (thin), full evidence trail, warts and all. Watch it run →

Scoring runs entirely in your browser — nothing you paste is uploaded anywhere.

Evidence — every item needs a citable source in the real world; here, describe it honestly

How scoring works

  1. Only verified evidence counts. claimed, pending and refuted items contribute zero; a disputed item blocks scoring until resolved.
  2. Self-assertion is discounted. Evidence an agent issues about itself counts half; third-party and protocol-sealed evidence counts full.
  3. Sybil damping. At most 2 verified items per identity cluster count per family — ten sock-puppet attestations don’t beat one real one.
  4. Context gates. Each context demands minimum verified evidence (e.g. agent-trust needs 3+ verified items across 2+ families, including ERC-8004 identity). Miss the gate → insufficient data, with the exact shortfall listed.

Published rules, spec-versioned — weights and thresholds change only with a spec bump, never ad hoc. Bands: established ≥0.80 · emerging ≥0.60 · thin ≥0.40 · weak ≥0.20 · negligible below.