Memberful Platform Help
Step 1 — Gather context
If references/learnings.md exists, read it first for accumulated platform knowledge.
-
What are you trying to do?
- A) Query or mutate members / subscriptions / passes / coupons via the GraphQL API
- B) Verify a signed webhook and react to a lifecycle event (signup, renewal, refund…)
- C) Add "Sign in with Memberful" (OAuth SSO) to your own app
- D) Gate content / set up private podcasts / downloads (WordPress plugin or website builder)
- E) Sync members to Discord / Mailchimp / Kit / a CRM
- F) Pick a plan / understand the 10% vs 4.9% transaction fees -
Front-end or back-end? Browser gating/checkout = WordPress plugin / website builder. Server-side member ops, OAuth callback, and webhook verification = GraphQL API + middleware (Bearer key, server-side only). This decides everything.
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... |
|---|---|
| Choosing or comparing membership/course platforms | /sales-membership {question} |
| Checkout / trial / dunning / upsell optimization across tools | /sales-checkout {question} |
| Email sequences/newsletters to members (Memberful doesn't send marketing email) | /sales-email-marketing {question} |
| Wiring Memberful into a CRM/warehouse or other tools generically | /sales-integration {question} |
| Membership/community structure, pricing, and retention strategy | /sales-membership {question} |
When routing, give the exact command, e.g. "Platform comparison — run: /sales-membership Memberful vs a hosted course platform".
Step 3 — Memberful platform reference
Read references/platform-guide.md for the full reference — the module map (GraphQL vs front-end vs webhook vs UI), the Plan-vs-Pass terminology trap, plan/transaction-fee gates, the member data model with JSON shapes, and quick-start recipes (query members paginated; verify a webhook + re-fetch; OAuth SSO).
Read references/memberful-api-reference.md for the integration surface — the GraphQL endpoint https://ACCOUNT-URL.memberful.com/api/graphql, Bearer API-key auth (from Settings → Custom applications), example query/mutation, Relay cursor pagination, member-metadata limits, the GraphQL error convention (HTTP 200 + errors), the 21 webhook events, the HMAC-SHA256 signature scheme (X-Memberful-Webhook-Signature), and OAuth.
Answer using only the relevant section. Don't dump the full reference.
Step 4 — Actionable guidance
Focus on the user's specific situation:
- GraphQL, not REST. One endpoint,
POST …/api/graphql, `Authorization header uses an OAuth access token from the approved secret store (key from Settings → Custom applications, server-side only). Build/test in the in-dashboard API Explorer. - Mind the Plan-vs-Pass swap. Dashboard "Plan" = API
Pass(the membership); dashboard "Price" = APIPlan(a pricing variant). Using the wrong name is the #1 first-integration bug. - Check
errors, not the status code. The API returns HTTP 200 even on failure — inspect theerrorsarray in the body. - Verify webhooks with HMAC-SHA256. Compute
HMAC-SHA256(rawBody, webhookSecret)and constant-time compare toX-Memberful-Webhook-Signature. Then re-query GraphQL for authoritative state — the payload is a snapshot. Event names mix_and.— match exact strings. - OAuth needs server-side middleware. The "Sign in with Memberful" callback can't run purely client-side — exchange the code on your server.
- Fees are the lever. Free = 10%, Pro/Premium = 4.9%, all on top of Stripe (2.9%+30¢) on your own Stripe account. The 10%→4.9% drop pays for Pro quickly at any volume.
- It's a layer, not a host. No course/LMS hosting and no marketing email — pair with an LMS and an ESP if you need those.
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 memberful.com/docs; pricing from marketing/reviews. Confirm in-account.
- Dashboard "Plan" ≠ API
Plan. APIPass= dashboard Plan (the membership); APIPlan= dashboard Price (a pricing variant). Read the terminology table before querying. - HTTP 200 on errors. GraphQL returns 200 with an
errorsarray even when the operation fails — never branch on the status code alone. - Webhooks are HMAC-SHA256 signed — verify them. Header
X-Memberful-Webhook-Signature, key = Webhook secret, over the raw body. Then re-fetch via GraphQL; treat the payload as a trigger, not the source of truth. - Event names are inconsistently cased. Some use
snake_case(member_signup,member_updated), somedot.case(member.deleted,subscription.created). Match the exact event string. - Member metadata is API-only and capped. 50 keys, 40-char keys, 500-char values — and you can't set it from the dashboard.
- Transaction fees stack on Stripe. Free 10%, Pro/Premium 4.9%, plus Stripe's 2.9%+30¢. Bring your own Stripe account.
- It's a layer, not a host. No LMS/course hosting, no marketing email — connect an LMS and an ESP if needed.
Related skills
/sales-membership— Membership/course platform strategy, pricing, and retention, and choosing Memberful vs a hosted course platform or another paywall layer/sales-memberstack— Memberstack (the closest direct alternative: no-code auth/paywall + Stripe for Webflow/custom sites; REST Admin API)/sales-checkout— Checkout, trial, and subscription optimization (Memberful runs payments through your Stripe)/sales-email-marketing— Newsletters/sequences for members (Memberful doesn't send marketing email — connect an ESP)/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 members + their active membership via the API (developer/automation)
User says: "How do I pull every member and which plan they're on out of Memberful?"
Skill does: Shows a GraphQL members(first: 100, after: …) query against https://ACCOUNT-URL.memberful.com/api/graphql with Authorization header uses an OAuth access token from the approved secret store looping onpageInfo.hasNextPage/endCursor(Recipe 1), and reading each node'ssubscriptions { pass { name } }— flagging that the dashboard "Plan" is the API **pass**, and to check theerrors` array since the API returns HTTP 200 on failure.
Result: A complete, paginated member + membership export.
Example 2: Trust a Memberful webhook before granting access
User says: "Memberful POSTs to my endpoint on signup — how do I know it's real?"
Skill does: Explains HMAC-SHA256 verification — compute HMAC-SHA256(rawBody, webhookSecret) and constant-time compare to X-Memberful-Webhook-Signature (Recipe 2 + Gotcha 3) — then re-query GraphQL for the member's current state rather than trusting the snapshot. Notes the 21 events and the _ vs . casing.
Result: Authenticated, tamper-evident webhook intake that grants access on confirmed state.
Example 3: Memberful or Memberstack for a paid membership?
User says: "I want paid memberships + gated content on my own site — Memberful or Memberstack?"
Skill does: Frames it — Memberful is membership-first (own-your-audience subscriptions, private podcasts/newsletters/downloads, WordPress, GraphQL API, fees 10%/4.9% on your Stripe), Memberstack is auth/paywall-first for Webflow/custom sites (REST Admin API, JWT gating). Recommends by primary need and routes deeper platform selection: "run: /sales-membership Memberful vs Memberstack for a paid community."
Result: A need-based choice between the two closest tools.
Troubleshooting
My GraphQL query "succeeds" but returns no data
Symptom: You get an HTTP 200 but data is null or empty.
Cause: Memberful follows the GraphQL convention — errors come back as HTTP 200 with an "errors" array (bad field name, wrong type, auth issue), and querying the wrong type name (Plan vs Pass) returns nothing.
Solution: Inspect the errors array in the response body, and confirm you're using the API names: Pass = dashboard "Plan", Plan = dashboard "Price". Test the query in the in-dashboard API Explorer first.
My webhook signature check fails
Symptom: The HMAC you compute doesn't match X-Memberful-Webhook-Signature.
Cause: Hashing a re-serialized body (not the raw bytes), the wrong Webhook secret, or normalizing the event name.
Solution: Compute HMAC-SHA256 over the raw request body with the Webhook secret (Settings → Webhooks) and constant-time compare to the header. Match the docs' Ruby/JS examples exactly. Don't normalize event strings — some use _, some use .. Once verified, re-fetch the record via GraphQL before acting.
"Sign in with Memberful" callback fails on my static site
Symptom: The OAuth redirect comes back but you can't complete the token exchange.
Cause: The OAuth code-for-token exchange must run server-side — it can't execute on a purely static/client-only site.
Solution: Add server-side middleware (Node/Python or a serverless function on Cloudflare Workers / AWS Lambda) to handle the callback, exchange the code, then read the member's passes to authorize. For platform selection beyond auth, use /sales-membership.
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