JustHandled Labs

Prove what your agent actually did.

Agent Run Evidence Pack turns one structured run packet into a consolidated, deterministic report covering promises, tool contracts, completion evidence, tool descriptions, skill activation, and cost.

$0.25 USDC per report on Base mainnet. The same six checks cost $0.30 when run separately.

Open the free sample report View input schema

One packet, six checks

Promises matched to recorded actions and evidence
Tool calls checked against authorization and argument contracts
Completion claims checked for supporting receipts
Tool descriptions checked for explicit operating boundaries
Expected skill activation compared with observed routing
Model and tool costs decomposed against a supplied budget

Built for agent workflows

Use POST /api/run/agent-run-evidence-pack through an x402-capable client, or install @justhandledlabs/agent-client for guarded CLI and MCP execution. Every paid result includes a versioned receipt and input/result hashes. Raw inputs and results are not persisted.

This is a structural evidence audit, not independent authentication of external events. A READY verdict means the supplied packet passed the declared checks.