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May Update 2026

Check out what we've been doing at Terra over the month of May 2026!

Backend 💾

Features

  • New integration: Trailforks is out

  • New integration: Rouvy webhooks are out

  • New integration: Omron webhooks are out

  • Fitbit v2 API integration is live

  • Bring-your-own-app OAuth pathway available for Strava, Oura, and WHOOP — connect your own OAuth app to Terra

  • New AI Health Context endpoint — query an LLM-grounded summary of a user's recent health data through the API

  • New Hormone scope available

  • Raw FIT files are now captured and stored from provider integrations

  • TrainingPeaks strength workouts are now included in the planned-workout response

  • Planned workouts on Apple are now supported

  • MacrosFirst now surfaces weight data

  • New webhook header X-Terra-Ordering-Timestamp exposes the emit-time of each event for ordering downstream

  • Daily Stress score (SS_DAILY_STRESS) re-enabled with a simpler training formula

  • Apple Health activity & lap average heart rate is now time-weighted for accuracy

Bug fixes

  • Fixed a bug where Garmin swim summary aggregates were not mapped to lap and activity fields

  • Fixed a bug where Garmin TRAIL_RUNNING and GRAVEL_CYCLING activity types were not mapped correctly

  • Fixed a bug where Garmin planned-workout API errors surfaced as 500s instead of 424s with normalised messages

  • Fixed a bug where Garmin daily step / distance / active-calorie totals were not derived from epoch samples

  • Fixed a bug where Garmin absolute speed bounds were not derived from threshold/percentage targets for SPEED/PACE workouts

  • Fixed a bug where Fitbit re-delivery could overwrite a better GPS track

  • Fixed a bug where Fitbit daily steps and distance were not derived from intraday samples

  • Fixed a bug where Fitbit calories / activity-level samples used the wrong anchor time

  • Fixed a bug where Fitbit v2 was emitting passively-measured SpO2 sentinel values (percentage=50)

  • Fixed a bug where Apple HealthKit body-fat values were sent as a fraction rather than a percent

  • Fixed a bug where Apple SDNN samples were not being set

  • Fixed a bug where Apple steps did not fall back to summing intraday samples

  • Fixed a bug where Apple all-zero daily records were not dropped for completed past days

  • Fixed a bug where Oura activity type mappings were incorrect

  • Fixed a bug where Zepp elevation summary fields and summary polyline were missing

  • Fixed a bug where Zepp GPS coordinates were scaled incorrectly

  • Fixed a bug where Zepp workout step count was not surfaced from the sports endpoint

  • Fixed a bug where Wahoo elevation summary fields were missing from FIT sessions

  • Fixed a bug where Huawei out-of-range pace targets caused hard errors instead of structured warnings, with pace values now clamped to the allowed range

  • Fixed a bug where COROS planned workouts required leaf intensity on repeat steps (now defaults to active)

  • Fixed a bug where Clue's current cycle was not fetched correctly

  • Fixed a bug where MyFitnessPal per-meal calories were 0 when MFP returned value=null (now correctly nil)

  • Fixed a bug where MacrosFirst food-level meals used the wrong parent meal name for the MealType mapping

  • Fixed a bug where the Apple and Fitbit responses drifted from our schema for several daily fields

  • Fixed a bug where GET /v2/daily returned future-dated daily records

  • Fixed a bug where workout / planned-workout IDs in v2 were returned as numbers (now JSON strings for precision)

  • Fixed a bug where provider 429 rate-limits were surfaced as 424s

  • Fixed several score formula transcription bugs — Activity Efficiency, SS_DAILY_STRESS_V2, SS_RESPIRATORY_V2, and Daily Strain

  • Fixed a bug where SS_RESILIENCE and SS_READINESS capped at 80 instead of running to 100

Changes

  • Webhook delivery now spools to disk and parallelises per-entry uploads for S3 destinations

  • Non-webhook destinations (GCS, SQL, Firestore, Supabase, Azure Blob, MongoDB) migrated to a streaming pipeline for lower memory and latency

  • Webhook dispatcher hardened with a per-destination safety-valve circuit breaker

SDK 📱

TerraiOS — 1.7.3

  • Handle request failures correctly so an individual sample-type failure no longer breaks a whole sync

  • Background delivery now bounds observer-fire fan-out and adds a per-push cap (1.7.2)

  • Snowflake IDs are now decoded as String to avoid JavaScript number-precision loss

  • HealthStore now averages across all daily buckets, and predicateOptions was renamed to options

  • Sleep wrist-temperature query predicate relaxed so more devices report a value

  • Server-driven initial backfill on initConnection for Apple Health

Frontend 📺

Landing Page (tryterra.co)

  • New self-serve DPA page and ToS reference for enterprise customers (https://tryterra.co/dpa)

  • Research articles now ship with a dedicated Methodology section and an auto-generated FAQ powered by Claude

  • Podcast page redesigned around per-episode article-style layouts, powered by the official Spotify Web API

  • New planned workout pricing on the pricing page

  • "Become an Integration" CTA added across homepage and footer

  • Toast notification banner connected to our Instatus status page so customers see incidents in real time

  • DPA + ToS last-updated date refreshed to May 1st, 2026

Dashboard (dashboard.tryterra.co)

  • Scores V6 redesigned page is live — new modules for Daily Strain, the Activity quad (Strain / RCRS / TRIMP / Efficiency), Immunity, Resilience, Readiness, Sleep V2, Respiratory V2, and Daily Stress V2

  • New Score Sandbox with a Sleep score playground — tweak inputs and see how scores change live

  • Provider health page is out — see provider status / outages at a glance

  • New Hormone scope available in the scopes UI

  • Synthetic data fetch — pull realistic synthetic samples without needing a real connection

  • Click-wrap updated to include DPA + SCC acceptance, with version-based terms tracking

  • Immunity now renders on its native 0–5 scale, and unbounded scores (RCRS, TRIMP) render as scale-aware histograms

Blood Biomarkers 🩸

  • Backfilled 1,506 LOINC codes for the biomarker reference set

  • New public biomarkers.json generator so customers can sync the reference set

  • Lab-reports model default upgraded to claude-opus-4-7 for higher-quality extraction

NextApril Update 2026

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