Is Tessary a trace explorer?

Not primarily. Tessary stores every trace it ingests, and you can open any one of them, but the product isn’t built as a general browsing tool the way a dedicated trace platform is. The usual path in is a finding: a classifier flags something, a case opens, and the trace viewer is where you go to confirm what it found, read the spans involved, and see the evidence behind that specific claim. Searching broadly across traces with no starting point, the kind of exploratory digging a trace explorer is built around, isn’t the workflow Tessary optimizes for. If your team wants to browse traces at large, independent of anything Tessary has flagged, a dedicated trace viewer running alongside Tessary covers that; the same OpenTelemetry export can reach both.

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More on this.

What does a production span carry that a dataset row cannot?Fields like session.id, deployment.environment.name, and the tool call that actually ran, context that only exists because a real request happened.answer →What is a trace?A trace is Tessary's stored record of one agent turn: one request a user waited on, and the spans that ran to produce its answer.answer →What structure does an ingested agent trace have?Three fixed levels: a session holding a user's turns, a trace for one turn, and the spans inside it, each an LLM call, tool call, retrieval, or sub-agent step.answer →Everything on tessary tracesThe definition, and every question answered under tessary traces.concept →

Two ways to run Tessary.

Tessary is an open-source agent reliability platform. Cloud and self-hosted run the same workflow on the OpenTelemetry traces your agent already emits.

Tessary Cloud

We host it for you. Send your first trace with nothing to deploy and no model key.

what's includedper organization
traces
10,000 per calendar month
stored trace data
1 GB
retention
30 days
model credit
$10, one-time, for triage and root-cause analysis
credit card
not required
start for free

Self-hosted Tessary

Run the open-source code on your own infrastructure with one command. Add your own model key for triage and root-cause analysis.

Self-host Tessary for me by following https://github.com/tessaryai/tessary/blob/main/setup.md

docker compose -f oci://docker.io/tessaryai/tessary:compose up -d -y