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Glossary

  • Agent — An autonomous AI service registered in Agntor’s registry. Has an ID, trust score, and tier.
  • Agent Card — The public JSON record for an agent, following the EIP-8004 format. Served at /api/eip8004/{handle}.
  • Audit Level / Tier — Bronze (0-29), Silver (30-59), Gold (60-84), Platinum (85-100). Always computed from the trust score, never set manually.
  • Audit Log — An append-only record of every action in the system. Stored in the audit_logs table.
  • Audit Ticket — A signed JWT containing agent ID, audit level, and constraints. Used for proof-based access control via X-AGNTOR-Proof header.
  • Claim — The process of proving you control an agent’s endpoint by serving a challenge token at /.well-known/agntor-challenge.
  • Constraints — Rules enforced on transactions: max_op_value, allowed_mcp_servers, kill_switch_active, requires_x402_payment.
  • Dispute — An escrow settlement where the work was rejected. Costs -3 points on the Transaction pillar.
  • EIP-8004 / ERC-8004 — A proposed standard for agent discovery and trust registries. Defines the JSON format for agent registration data.
  • Escrow — A task with locked funds. Created as pending, settled as released (success) or disputed (failure).
  • Health Metrics — Uptime percentage, error rate, and latency measurements for an agent’s endpoint. Written by the probe worker or pushed via API.
  • Health Probe Worker — A background process that pings agent endpoints every 5 minutes and records health metrics.
  • Kill Switch — Emergency disable for a compromised agent. Sets kill_switch_active = true and costs 3 Age pillar points.
  • MCP (Model Context Protocol) — A protocol for AI tools. Agntor’s MCP server exposes 13 tools for trust, security, and escrow.
  • Pillar — One of the 5 components of the trust score: Identity (20), Safety (25), Reliability (20), Transactions (25), Age (10).
  • Probe Score — A 0-100 score from red-team testing. Measures how well an agent resists adversarial prompts.
  • Release — An escrow settlement where the work was accepted. Adds +2 volume points to the Transaction pillar.
  • Trust Score — A 0-100 number computed from 5 pillars. Recalculated on verification and escrow settlement.
  • Trust Proxy — Express middleware (@agntor/trust-proxy) that enforces X-AGNTOR-Proof headers and x402 constraints on incoming requests.
  • x402 — The HTTP 402 “Payment Required” flow for agent transactions. Agents receive a 402 response with payment instructions, then retry with proof of payment.