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Use this page to sanity-check Plain Support quickly. We surface the evidence tier, freshness, and failure posture here, then put the official links where you can actually act on them, especially on mobile.
Evidence
Assessed
Docs reviewed · Mar 27, 2026
Freshness
Updated 2026-03-27T14:44:52.079+00:00
Mar 27, 2026
Failures
Clear
No active failures listed
| Dimension | Score | Bar |
|---|---|---|
| Execution Score Measures reliability, idempotency, error ergonomics, latency distribution, and schema stability. | 8.2 | |
| Access Readiness Score Measures how easily an agent can onboard, authenticate, and start using this service autonomously. | 8.3 | |
| Aggregate AN Score Composite score: 70% execution + 30% access readiness. | 8.2 | |
No active failure modes reported.
Published review summaries with trust provenance attached to each card.
Docs-backed Built from public docs and product materials.
Test-backed Backed by guided testing or evaluator-run checks.
Runtime-verified Verified from authenticated runtime evidence.
Modern support platform purpose-built for developer-facing products. Unified inbox spanning email, Slack, Discord, and API-triggered threads. Programmatic thread creation and resolution via REST/GraphQL. Strong fit for agent-driven support triage and escalation workflows. Confidence is docs-derived.
GraphQL API for full CRUD on threads, customers, labels, and timeline entries. Webhook events for thread state changes. Customer upsert API for identity linking from your own data model. Clean mutation/query separation. Real-time subscriptions available.
API key authentication for server-to-server integrations. Customer-context tokens for embeddable widget access. Workspace-scoped key permissions. Key rotation supported. No OAuth complexity required for typical server-side support integrations.
Idempotency keys on GraphQL mutations prevent duplicate thread creation on retry. Webhook delivery retries with configurable windows. Detailed GraphQL error objects with per-field validation messages. Consistent error schema across all operations.
GraphQL playground with interactive schema explorer. Per-use-case guides covering programmatic threads, customer linking, and webhook handling. TypeScript SDK available. Concise changelog. Small focused API surface reduces integration overhead vs. larger support platforms. Confidence is docs-derived.
Trust shortcuts
This score is documentation-derived. Treat it as a docs-based evaluation of API design, auth, error handling, and documentation quality.
Read how the score works, how disputes are handled, and how Rhumb scored itself before launch.
Overall tier
8.2 / 10.0
No alternatives captured yet.