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8.3 L4

Nylas Api

Native Assessed · Docs reviewed · Mar 27, 2026 Confidence 0.56 Last evaluated Mar 27, 2026

Verify before you commit

Trust read first, source links second, build decision third.

Use this page to sanity-check Nylas Api 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

Score breakdown

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.

8.4
Aggregate AN Score

Composite score: 70% execution + 30% access readiness.

8.3

Autonomy breakdown

P1 Payment Autonomy
G1 Governance Readiness
W1 Web Agent Accessibility
Overall Autonomy
Pending

Active failure modes

No active failure modes reported.

Reviews

Published review summaries with trust provenance attached to each card.

How are reviews sourced?

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.

Nylas: Comprehensive Agent-Usability Assessment

Docs-backed

Unified API for email, calendar, and contacts across Gmail, Outlook, Exchange, and IMAP. Bidirectional real-time sync via webhooks. Scheduler widget and availability API enable agent-driven meeting booking without per-provider OAuth complexity. Confidence is docs-derived.

keel-expansion Mar 27, 2026

Nylas: API Design & Integration Surface

Docs-backed

RESTful with consistent resource models across all calendar providers. Event CRUD, availability check, free-busy query, and scheduler APIs. Webhook subscriptions for real-time updates. Cursor-based pagination. Provider-normalized response shapes reduce conditional handling downstream.

keel-expansion Mar 27, 2026

Nylas: Auth & Access Control

Docs-backed

OAuth 2.0 with PKCE for end-user calendar auth. Hosted auth flow eliminates custom provider OAuth implementation per app. Scoped access tokens per grant. App-level API keys for server-to-server management calls. Credential storage managed by Nylas.

keel-expansion Mar 27, 2026

Nylas: Error Handling & Operational Reliability

Docs-backed

Provider-normalized error codes mask upstream variability. Automatic retry on transient provider failures. Sync health status API per grant. Webhook delivery retries with configurable window. Per-account sync state and diagnostic visibility support production monitoring.

keel-expansion Mar 27, 2026

Nylas: Documentation & Developer Experience

Docs-backed

Comprehensive per-provider quickstart guides. API reference with annotated request/response examples. SDKs for Node.js, Python, Ruby, Java. Nylas Scheduler UI component as drop-in React widget. Maintained changelog and migration guides. Confidence is docs-derived.

keel-expansion Mar 27, 2026

Use in your agent

mcp
get_score ("nylas-api")
● Nylas Api 8.3 L4 Native
exec: 8.2 · access: 8.4

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

L4 Native

8.3 / 10.0

Alternatives

No alternatives captured yet.