v0.2.0 — AgentTrace runs in public (M2)

What's new

AgentTrace runs in public — a decision can be opened and verified by anyone from a link, and the SDK installs from npm into an existing agent in about a minute.

Details

• Hosted service. API and publisher run as one service on Render; /health reports the database, the queue, the publisher's lag behind the chain tip and RPC calls by method, and answers 503 when the database is unreachable.
• Public pages. /verify checks a signed record against Solana in the browser with no AgentTrace backend in the path; /decisions/<id> shows a live decision with its verification state. The home page now says what the product is, who it is for, what a check can answer — and offers both actions.
• SDK on npm: @agenttracewoof/sdk 0.2.1. createClient({ agent, policy }) with the hosted endpoint and AGENTTRACE_INGEST_KEY as defaults, and record({ model, steps, outcome }) for a finished decision in one call. Works under Jest ESM (fs errors from another realm no longer stop the first run).
• Cheaper to run. Blockhash and fee reads are cached for 30 s: 2.56 RPC calls per decision instead of 4.9, which keeps 10 000 decisions a day inside the RPC provider's free plan.
• The API refuses an agent key that is not a point on the Ed25519 curve.

Measured on the deployed service

• SC-001 — p95 6.2 s from a finished decision to a checkable status, over a day at 10 000 decisions/day (2026-09-28 → 09-29 UTC).
• SC-004 — 5 000 lamports per decision, about $0.0006 at SOL $119.
• SC-002 — on two third-party projects (LangChain's ReAct starter, the LangGraph.js template), 59 s and 1 min 14 s from install to a verified decision; the integration adds 6 and 5 statements.

Not in this release, and worth saying out loud

• Solana devnet, which is reset from time to time — no anchor here outlives the demo.
• No accounts and no self-service keys yet: an ingest key comes from the operator.
• No retention or eviction yet: at 10 000 decisions a day the free database fills in about four days.
• Demo decisions on the site are generated by a test agent; the signature, the anchor and the verification are real.

Files changed

• apps/api/src/health.ts, apps/api/src/app.ts — readiness /health with chain lag and RPC tally
• apps/publisher/src/budget.ts, apps/publisher/src/loop.ts — cached chain reads, fewer calls per decision
• apps/web/src/pages/Landing.tsx, apps/web/src/pages/Verify.tsx — showcase home page, in-browser verification
• packages/sdk/ — publishable package: build, README, defaults, record(), realm-safe errno checks
• render.yaml, .github/workflows/pages.yml — hosting
• LICENSE — MIT

Migration

✅ No migration needed.