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nacos vs cas

nacos and cas share 17 technologies: com.mysql:mysql-connector-j, H2 Database, PostgreSQL, com.zaxxer:HikariCP, MySQL, Postgres, com.github.ben-manes.caffeine:caffeine, Spring Boot, nimbus-jose-jwt, oauth2-oidc-sdk, jul-to-slf4j, micrometer-registry-prometheus, org.springframework.boot:spring-boot-starter-actuator, org.slf4j:slf4j-api, io.micrometer:micrometer-core, org.apache.logging.log4j:log4j-core, and ch.qos.logback:logback-core. Both are written in Java.

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What they share and what sets them apart

alibaba

nacos

an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.

Java33.5kRead on November 7, 2026, at commit 815779bWhat is nacos built with?

Only in nacos

In common

apereo

cas

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

Java11.4kRead on November 12, 2026, at commit 990ad16What is cas built with?

Only in cas

  • Spring
  • apache-client
  • curator-client
  • curator-recipes
  • hsqldb
  • jakarta.jms-api
  • jtds
  • kafka-clients
  • lettuce-core
  • MariaDB
  • MongoDB
  • ojdbc11
  • org.springframework.boot:spring-boot-jdbc
  • pyzmq
  • s3
  • spring-boot-cache
  • spring-boot-starter-data-mongodb
  • spring-jms
  • software.amazon.awssdk:dynamodb
  • com.hazelcast:hazelcast
  • org.springframework.kafka:spring-kafka
  • org.apache.cassandra:java-driver-core
  • etcd
  • org.apache.pulsar:pulsar-client-api
  • org.springframework.amqp:spring-rabbit
  • com.microsoft.sqlserver:mssql-jdbc
  • org.apache.curator:curator-framework
  • software.amazon.awssdk:sqs
  • Flask
  • graal-sdk
  • jetty-http2-server
  • org.apache.tomcat.embed:tomcat-embed-websocket
  • org.thymeleaf:thymeleaf-spring6
  • polyglot
  • spring-boot-integration
  • spring-boot-starter-thymeleaf
  • spring-cloud-bus
  • spring-cloud-config-client
  • spring-cloud-config-server
  • tomcat-embed-core
  • tomcat-embed-el
  • werkzeug
  • jakarta.servlet:jakarta.servlet-api
  • org.eclipse.jetty:jetty-alpn-java-server
  • Normalize.css
  • Hibernate
  • hibernate-hikaricp
  • org.springframework.data:spring-data-commons
  • spring-data-cassandra
  • spring-data-mongodb
  • jakarta.persistence:jakarta.persistence-api
  • itsdangerous
  • jose4j
  • spring-boot-session
  • spring-boot-session-data-redis
  • spring-boot-session-jdbc
  • spring-session-data-redis
  • spring-session-jdbc
  • org.springframework.security:spring-security-cas
  • org.pac4j:pac4j-core
  • org.pac4j:pac4j-oidc
  • software.amazon.awssdk:secretsmanager
  • com.microsoft.azure:msal4j
  • com.azure:azure-identity
  • software.amazon.awssdk:sts
  • org.springframework.ai:spring-ai-starter-mcp-server-webmvc
  • angus-mail
  • groovy-templates
  • jakarta.mail
  • jdom2
  • jinja2
  • jsoup
  • markupsafe
  • org.springframework.boot:spring-boot-starter-mail
  • org.apache.velocity:velocity-engine-core
  • Thymeleaf
  • com.google.zxing:core
  • com.sendgrid:sendgrid-java
  • com.samskivert:jmustache
  • commons-validator
  • org.hibernate.validator:hibernate-validator
  • org.springframework.boot:spring-boot-starter-validation
  • jakarta.validation:jakarta.validation-api
  • cloudwatchlogs
  • log4j-jcl
  • log4j-layout-template-json
  • logback-access-common
  • logback-classic
  • metrics-core
  • micrometer-jakarta9
  • micrometer-java21
  • micrometer-registry-cloudwatch2
  • micrometer-registry-elastic
  • micrometer-registry-influx
  • micrometer-registry-otlp
  • micrometer-tracing-bridge-brave
  • micrometer-tracing-bridge-otel
  • spring-boot-admin-starter-client
  • spring-boot-admin-starter-server
  • spring-boot-starter-jetty
  • spring-boot-starter-log4j2
  • spring-cloud-starter-consul-discovery
  • spring-cloud-starter-netflix-eureka-client
  • spring-cloud-starter-zookeeper-discovery
  • zipkin-reporter-brave
  • org.apache.logging.log4j:log4j-api
  • software.amazon.awssdk:ssm
  • io.micrometer:micrometer-observation
  • OpenTelemetry
  • software.amazon.awssdk:cloudwatch

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
nacos937,868 lines written3,424 code files
cas727,274 lines written5,293 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
nacos4.3% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
cas0% of its commits signed by AIWith GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
nacosLast push November 5, 20265,254 commits33,500 stars
casLast push November 12, 202631,593 commits11,395 stars
TestsThe files that test the code, and the share of code files a test imports.
nacos2,395 test files82.4% of its code files have a test that imports them
cas3,193 test files48.4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, nacos or cas?
nacos, with 937,868 lines written; cas has 727,274.

The proof: alibaba/nacos's code at commit 815779b

Which has more GitHub stars, nacos or cas?
nacos, with 33,500 stars; cas has 11,395.

The proof: alibaba/nacos on GitHub

Which has more tests, nacos or cas?
cas, with 3,193 test files; nacos has 2,395.

The proof: apereo/cas's code at commit 990ad16

Which was updated more recently, nacos or cas?
cas: its last push was on November 12, 2026, and nacos's on November 5, 2026.

The proof: apereo/cas's commits on GitHub

Which has more commits signed by AI, nacos or cas?
nacos: an AI signed 4.3% of its commits, with Claude Code, Cursor, and GitHub Copilot.

The proof: the commits each tool signed in alibaba/nacos

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