HERMES Flight recorder for AI agents

Know exactly what your agents did.
And prove it.

Every tool call, token, and dollar your fleet burns — recorded to an immutable, end-to-end encrypted Black Box. When one goes wrong at 3am, replay the flight and see the exact call that broke it.

OPEN SOURCE · APACHE-2.0 · CLOUD OPTIONAL
SKYWARD-7 · FLIGHT IN PROGRESS EVENTS 195 TOKENS 1.2M COST $0.42
RAW RECORD · NOTHING RETOUCHED · A GAP IN THE TAPE IS ITSELF A FINDING REPLAY THIS FLIGHT IN THE TOWER →
01 / BLACK BOX

Records everything.

Every session, tool call, model turn, delegation, and cron beat — sequenced, timestamped, append-only. Nothing is summarized, sampled, or discarded.

02 / SEALED

Reads nothing.

Prompts, messages, and tool output are ciphertext before they leave your machine. You hold the only key. Privacy by architecture, not by policy.

03 / THE TOWER

Every number is a door.

Cost spike, p95 latency, a missed cron — click any figure and land on the exact flights that produced it.

04 / THE GAP

It reports what it didn't see.

A tear in the tape is surfaced as a finding — a start, an end, and a cause. Never interpolated, never smoothed over. The one thing a summary can't tell you is where it stopped looking; the recorder tells you first.

AGENT TRAFFIC LOG LIVE
CALLSIGNROLETAPESTATUS
SKYWARD-7root · 3 subagents195 ev · 1.2M tok · $0.42OK
NOMAD-9cron · hourly sweep48 ev · 210K tok · $0.07OK
MARINER-4ingest pipeline312 ev · 3.4M tok · $1.10OK
WAYFARER-1batch · nightly76 ev · 890K tok · $0.31OK
RECON-AIresearch · deep1,204 ev · 9.8M tok · $4.62DEGRADED
PIONEER-3deploy · on-demand12 ev · 40K tok · $0.02OK
GREEN UNTIL IT ISN'T. WHEN IT ISN'T, THE BLACK BOX IS ONE CLICK AWAY.
THE SIGNAL — HOW A FLIGHT BECOMES A RECORD
P-01 · YOUR MACHINE
RECORD
The open-source recorder captures each flight locally and seals its content on the spot.
P-02 · THE SIGNAL
TRANSMIT
Sealed envelopes stream to your Black Box — an isolated, per-callsign, append-only store.
P-03 · THE TOWER
REPLAY
The record becomes fleet health, cost, and a second-by-second replay of any flight.
Keep the log local, connect Hermes DBaaS, or send the open protocol to your own backend. VIEW SOURCE ↗
IMMUTABLE BY CONSTRUCTION · END-TO-END ENCRYPTED · YOUR KEYS, YOUR LEDGER, YOUR ISOLATION BOUNDARY
Pull the tape.
The next 3am incident is already being recorded.