Alibaba Sentinel
Alibaba Sentinel is a powerful open source flow control component enabling reliability, resilience, and monitoring for microservices. Originally developed by Alibaba and used in production at Alibaba for over 10 years, Sentinel provides flow control, traffic shaping, concurrency limiting, circuit breaking, and system adaptive overload protection. The project is written primarily in Java with a Go implementation (sentinel-golang) also available. Sentinel integrates with major frameworks including Spring Cloud, Dubbo, gRPC, Apache RocketMQ, and Servlet. It provides a real-time monitoring dashboard for visualizing metrics and configuring rules dynamically. The project is hosted on GitHub under the Alibaba organization and is widely adopted in cloud-native microservice architectures.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Alibaba Sentinel the way a machine reads it — 9 machine-readable artifacts across 4 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Alibaba Sentinel scores 36.7/100 (thin), with a separate agent-readiness read of 36/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Alibaba Sentinel
Each block below is one kind of artifact we hold for Alibaba Sentinel. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 4
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Alibaba Sentinel Authority Rules API
The Authority Rules API from Alibaba Sentinel — 1 operation(s) for authority rules.
Alibaba Sentinel Degrade Rules API
The Degrade Rules API from Alibaba Sentinel — 2 operation(s) for degrade rules.
Alibaba Sentinel Flow Rules API
The Flow Rules API from Alibaba Sentinel — 2 operation(s) for flow rules.
Alibaba Sentinel System Rules API
The System Rules API from Alibaba Sentinel — 1 operation(s) for system rules.
Spectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Alibaba Sentinel API Rules
SPECTRALJSON Schema 2
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Alibaba Sentinel Degrade Rule
JSON SCHEMAAlibaba Sentinel Flow Rule
JSON SCHEMASecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Alibaba Sentinel — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Company 1
The organization behind the API
Other 1
Properties that don't map to a standard resource type
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