FeatureOS (formerly Hellonext) platform help — customer-feedback suite for product teams: feedback boards (posts/feature requests with voting + comments), public roadmaps, branded changelogs, knowledge base, surveys, widget. Developer surface: REST API v3 (base api.featureos.app/api/v3, API-KEY header, keys prefixed hn_, page/per_page pagination, 100 req/min), OAuth 2.0 apps (foapp_/foot_ tokens, scopes, app/self actor modes), webhooks (post_created/post_completed/changelog_published, 3x retry then auto-disable), and the HellonextWidget embed with SSO. Use when reading or syncing feedback posts/votes via the API, building an OAuth app other workspaces install, verifying or debugging webhooks, embedding the widget or identifying users with SSO, mapping post statuses to a roadmap, or choosing FeatureOS vs Canny/Frill/Featurebase on price. Do NOT use for voice-of-customer / NPS survey program strategy across tools (use /sales-customer-feedback) or public review generation (use /sales-customer-reviews).
FeatureOS (formerly Hellonext) platform help — customer-feedback suite for product teams: feedback boards (posts/feature requests with voting + comments), public roadmaps, branded changelogs, knowledge base, surveys, widget. Developer surface: REST API v3 (base api.featureos.app/api/v3, API-KEY header, keys prefixed hn_, page/per_page pagination, 100 req/min), OAuth 2.0 apps (foapp_/foot_ tokens, scopes, app/self actor modes), webhooks (post_created/post_completed/changelog_published, 3x retry then auto-disable), and the HellonextWidget embed with SSO. Use when reading or syncing feedback posts/votes via the API, building an OAuth app other workspaces install, verifying or debugging webhooks, embedding the widget or identifying users with SSO, mapping post statuses to a roadmap, or choosing FeatureOS vs Canny/Frill/Featurebase on price. Do NOT use for voice-of-customer / NPS survey program strategy across tools (use /sales-customer-feedback) or public review generation (use /sales-customer-reviews).
FeatureOS (formerly Hellonext) — feedback boards + roadmap + changelog + knowledge base. Note the rebrand left legacy names in place: API keys are prefixed hn_, the embed class is HellonextWidget, and posts are the feature_requests resource.
Step 1 — Gather context
If references/learnings.md exists, read it first for accumulated platform knowledge.
What are you trying to do?
A) Read/sync feedback posts, votes, comments via the REST API v3 (API-KEY header)
B) Build an OAuth app that other workspaces install (scopes, actor modes, token refresh)
C) Receive/verify webhooks (post + changelog events) and react to them
D) Embed the widget / identify logged-in users with SSO (ssoToken)
E) Map post statuses to a roadmap, or wire a changelog
F) Pick a plan, or decide FeatureOS vs Canny/Frill/Featurebase
API key or OAuth? Scripting your own org → plain API-KEY (hn_…). An integration other orgs connect → OAuth 2.0 app (foapp_/foot_). Front-end embed → HellonextWidget.
Skip-ahead rule: if the user's prompt already provides enough context, skip to Step 2.
Step 2 — Route or answer directly
If the question is about...
Route to...
Voice-of-customer / survey program strategy (NPS/CSAT/CES) across tools
/sales-customer-feedback {question}
Aggregating unsolicited feedback across reviews/social/support sources
/sales-noisely {question}
Public review generation strategy
/sales-customer-reviews {question}
Connecting FeatureOS to a CRM/PM tool generically (iPaaS)
/sales-integration {question}
When routing, give the exact command, e.g. "This is a strategy question — run: /sales-customer-feedback build a closed-loop feedback program".
Step 3 — FeatureOS platform reference
Read references/platform-guide.md for the full reference — the boards/roadmap/changelog/KB module map (API vs widget vs UI), pricing tiers + the API plan-gate, the post/customer data model, and quick-start recipes (export posts, handle a webhook, embed + SSO).
Read references/featureos-api-reference.md for the integration surface — base https://api.featureos.app/api/v3, API-KEY: hn_… auth (+ per-user Authorization: Bearer <sso_jwt>), page/per_page pagination (default 30, max 100), 100 req/min rate limit, the full errors table + ERROR_CODE_* codes, OAuth 2.0 apps (token formats, /oauth/apps → /oauth/authorize → /oauth/authorize/consent → /oauth/token, scopes, actor modes, role-capping), webhooks (events, postCompleted payload, retry policy), and the HellonextWidget options.
Answer using only the relevant section. Don't dump the full reference.
Step 4 — Actionable guidance
Focus on the user's specific situation:
Auth + pagination.API-KEY: hn_<key> against api.featureos.app/api/v3; page with ?page=N&per_page=100 (default 30, max 100). Keep the key server-side; full API access is plan-gated (≈Growth tier and up — verify in-account).
Posts are feature_requests; status.value is the roadmap column. Read/sync feature_requests (and buckets = boards, votes, comments); map status.value (planned/in_progress/completed) to your roadmap.
Webhooks: 200 or they retry then disable. Subscribe to post/changelog events; respond 200 fast — failures retry at 5m/30m/2h then the webhook is auto-disabled (email sent). Dashboard webhooks aren't HMAC-signed; keep the URL secret. Dedupe on data.id + timestamp (unix seconds).
OAuth for multi-tenant apps. Register POST /oauth/apps, request minimum scopes, pick actor mode (app bot vs self user, which is role-capped). Access tokens expire in 24h — refresh (rotation: store the newest foot_/foor_ pair).
Identify widget users with ssoToken or board activity is anonymous. The class is HellonextWidget (legacy), not FeatureOSWidget.
It's a feedback-board tool, not VoC surveys or aggregation. For NPS/CSAT programs use /sales-customer-feedback; for mining unsolicited reviews/social use /sales-noisely.
If you discover a gotcha, workaround, or tip not covered in references/learnings.md, append it there.
Gotchas
Best-effort from research (2026-06) — API verbatim from developers.featureos.app; pricing from the live site. Confirm in-account.
Rebrand leftovers. Hellonext → FeatureOS, but API keys are still prefixed hn_, the embed class is still window.HellonextWidget, and feedback posts are the feature_requests resource. Don't expect "featureos"-named identifiers.
Pagination is page/per_page, not cursors. Default 30, max 100. Loop page until a short/empty page.
Webhooks auto-disable after 3 failures (retries at 5m/30m/2h) and aren't replayable — always return 200, and reconcile by polling feature_requests. Dashboard webhooks have no HMAC signature (unlike Frill); secure by URL secrecy / IP allowlist.
API access is plan-gated and the docs disagree on the tier (live pricing: "complete API access" from ~Growth $120/mo; Help Center: top "Fly High" plan). Treat full API as a higher-paid feature; verify before building.
OAuth access tokens expire in 24h. Refresh is a rotation — the old access and refresh token stop working; persist the newest pair or you'll lock yourself out.
self-actor OAuth tokens are role-capped per request. If the authorizing user is downgraded/removed, :write/:manage scopes silently drop to read — don't assume a token's permissions are static.
No SSO ssoToken → anonymous feedback. Pass a JWT signed with your org SSO key so votes/posts attach to real accounts.
Rate limit 100 req/min/key → 429/ERROR_CODE_RATE_LIMITED. Batch with per_page=100 and back off.
Related skills
/sales-customer-feedback — Voice-of-customer / survey program strategy across tools (FeatureOS is a feedback-board option) — program design, tool selection
/sales-frill — Frill platform help (the closest like-for-like feedback-board competitor: boards + roadmap + changelog; cursor pagination + HMAC-signed webhooks)
/sales-noisely — AI feedback aggregation across reviews/social/support (complement: FeatureOS = solicited boards, Noisely = unsolicited mining)
/sales-customer-reviews — Public review generation strategy
/sales-integration — Connecting FeatureOS to a CRM/PM tool via API/webhooks/Zapier
/sales-do — Not sure which skill to use? The router matches any sales objective to the right skill. Install: npx skills add sales-skills/sales --skill sales-do -a claude-code
Examples
Example 1: Export all feedback posts and their vote counts via the API (developer/automation)
User says: "How do I pull every feature request and its upvotes out of FeatureOS?"
Skill does: Shows GET https://api.featureos.app/api/v3/feature_requests with API-KEY: hn_<key>, paging via ?page=N&per_page=100 (default 30, max 100) until a short page, reading each post's status.value, upvotes_count, bucket, and submitter. Notes the 100 req/min limit (back off on 429), keeping the key server-side, and that webhooks (post_created/post_updated) beat polling for ongoing sync.
Result: A complete, paginated export of posts + engagement.
Example 2: Build a webhook that won't get disabled
User says: "FeatureOS keeps disabling my webhook — how do I receive post events reliably?"
Skill does: Explains the endpoint must use HTTPS, be public, and return 200; on non-200 it retries at 5m/30m/2h then auto-disables (email sent). Recommends responding 200 immediately and processing async, deduping on data.id + created/updated_at (unix seconds), reading type/event (dashboard postCompleted vs OAuth-app post_completed), and reconciling missed events by polling feature_requests. Flags that dashboard webhooks aren't HMAC-signed.
Result: A durable webhook intake that stays enabled.
Example 3: FeatureOS vs Frill vs Canny — which feedback board?
User says: "Small SaaS — should I use FeatureOS, Frill, or Canny for a public feedback board + roadmap?"
Skill does: Frames the tradeoff — FeatureOS bundles boards + roadmap + changelog + knowledge base + AI copilot ($60 Starter / $120 Growth, API gated to Growth+), Frill is the cheapest ($25/mo) with cursor pagination + HMAC-signed webhooks, Canny is pricier ($400/mo) with deeper enterprise features. Recommends by budget/feature-need and routes broader selection: "run: /sales-customer-feedback choose a product-feedback board tool."
Result: A price- and feature-grounded board choice.
Troubleshooting
My API key returns 401 / "API key is invalid"
Symptom: Every request fails with 401.
Cause: Wrong header, a key without the hn_ prefix, or a plan without API access.
Solution: Send the key in the API-KEY header (not Authorization) — -H 'API-KEY: hn_…'; regenerate from Dashboard → Organization Settings → Advanced. Full API access is plan-gated (≈Growth and up) — confirm your tier includes it. Use HTTPS only.
My webhook stopped firing
Symptom: Events arrived, then silence.
Cause: Your endpoint returned non-200; after 3 retries (5m/30m/2h) FeatureOS disabled the webhook.
Solution: Check your inbox for the disable notice, fix the endpoint to always return 200 quickly, then re-enable under Organization Settings → Webhooks. Backfill the gap by polling feature_requests. Inspect per-delivery logs in the webhook's view.
Widget feedback is all anonymous
Symptom: Board votes/posts aren't tied to your real users.
Cause: The HellonextWidget isn't passing an ssoToken.
Solution: Generate a JWT from { "email": "...", "name": "..." } signed with your org SSO key and pass it as ssoToken (the old jwtToken is deprecated). For VoC program strategy beyond boards, use /sales-customer-feedback.
