API, webhooks & automation

Everything is also doable over REST — no UI needed. An async job with a webhook:

curl -X POST http://127.0.0.1:8653/api/jobs \
  -H "X-TT-Token: $TT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"model":{"custom":"HuggingFaceTB/SmolLM2-135M-Instruct"},
       "dataset_id":"<dataset-id>",
       "lora":{"r":16,"alpha":32},
       "params":{"lr":2e-4,"epochs":3,"bs":2,"gacc":1},
       "webhook":"https://example.com/hook"}'

• POST /api/jobs creates an async job and returns its poll URL; GET /api/jobs/<id> gives live status.
• On completion the server POSTs to your webhook signed with X-TT-Signature: sha256=HMAC(body) — verify integrity at the destination with the same secret.
• Custom webhook headers are sanitised and private/internal targets (SSRF) are blocked — unless you opt in with TT_WEBHOOK_ALLOW_PRIVATE=1 for purely local automation.
• The queue modal shows each job's webhook column: delivered ✓ or failed ✗.