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Open-source integration
WSO2 vs Apache Camel vs Cameleer
Three open-source ways to run integrations. WSO2 Integrator is a product with a visual designer, management tooling and paid support. Apache Camel is the framework of the Enterprise Integration Patterns, on the JVM. Cameleer runs Camel's routes unchanged as one native binary, and adds a reliability layer for AI agent tools.
At a glance
| WSO2 Integrator | Apache Camel | Cameleer | |
|---|---|---|---|
| what it is | an integration product: Micro Integrator (built on Apache Synapse), a low-code profile on Ballerina, streaming | an integration framework: routes and EIPs, about 300 components | Apache Camel's routes, EIPs and about 230 components, rewritten in Rust |
| licence | Apache-2.0; paid subscription for support | Apache-2.0 | Apache-2.0 |
| runtime | JVM (Java 21) | JVM, or native with Quarkus | one native binary, Rust standard library only |
| how you write integrations | Synapse XML through a VS Code visual designer; Ballerina in the low-code profile | Java, YAML or XML DSL; Kaoto as a visual editor | Camel's YAML and XML DSLs unchanged, or the Rust DSL |
| startup | about 4 to 5 s (WSO2's figure for the Micro Integrator) | 1.1 s on the JVM, 30 ms native (measured) | 2.5 ms (measured) |
| memory | 1 GB per container recommended by WSO2 | 399 MB peak on a simple route, JVM (measured) | 7 MB peak on the same route (measured) |
| distribution | about 150 MB (WSO2's figure) | a JVM plus your application's JARs | a 26 MB binary with every component; 5.9 MB with core; a 20 MB image |
| API management | WSO2 API Manager (a separate product) | REST DSL; no API management | REST DSL with OpenAPI; no API management |
| AI agents and MCP | MCP servers from APIs and integrations, MCP clients, agents with memory and RAG | camel-ai-tool, camel-mcp-server (Preview) | MCP server in both protocol eras, MCP client and gateway, an agent step; schema, run-once, approval, cancelling timeout and audit on every call |
| Evidence of the running integration (TEE attestation) | not found in its documentation (searched 2026-11) | not found in its documentation (searched 2026-11) | next release: in a confidential VM, hardware evidence of the routes, configuration and tools, bound to the TLS key (trust) |
| AWS Lambda, edge | containers | containers; native images for functions | its own Lambda runtime; arm64 and amd64 images for gateways |
| support | WSO2 subscriptions | community; commercial builds from vendors | community |
"Measured" figures come from the same routes on three identical cloud machines (Apache Camel vs Cameleer). We have not benchmarked WSO2; its figures are from WSO2's release notes and installation prerequisites; WSO2's features from its product page, checked on 9 November 2026.
When to choose which
WSO2 Integrator, when you
- want a visual designer and management console as part of one product;
- also need API management, and want it from the same vendor;
- want a support subscription from the company that builds it;
- already run WSO2 Enterprise Integrator or Micro Integrator.
Apache Camel, when you
- write integrations in Java alongside Spring Boot or Quarkus applications;
- need a component or Java library only Camel has;
- want a commercially supported Camel build from a vendor.
Cameleer, when you
- want Camel's routes without the JVM: serverless, edge gateways, sidecars, many small services;
- want AI agents to call your systems through tools that are checked, run once, approved and audited by the server;
- pay for memory or cold starts.
Moving between them
From Apache Camel to Cameleer, YAML and XML routes move unchanged (migration guide). From WSO2, Synapse sequences are rewritten as routes; most mediators have a direct equivalent:
| WSO2 Synapse mediator | Camel and Cameleer equivalent |
|---|---|
filter, switch | filter, choice |
iterate, aggregate | split, aggregate with a completion size or timeout |
clone | multicast |
call, send | to, toD |
enrich | enrich, pollEnrich |
payloadFactory, datamapper | setBody with Simple, a template (Velocity, FreeMarker, Mustache), jq, DataSonnet or XSLT |
property, header | setProperty, setHeader |
log, fault sequences | log, onException and the dead letter channel |
Common questions
What is the difference between WSO2 and Apache Camel?
Both are open-source integration runtimes on the JVM. WSO2 Integrator is a product: the Micro Integrator (built on Apache Synapse) with a VS Code visual designer, a low-code Ballerina profile, management tooling, an API Manager as a separate product, and paid support from WSO2. Apache Camel is a framework: routes in Java, YAML or XML using the Enterprise Integration Patterns, about 300 components, embedded in Camel Main, Quarkus or Spring Boot, supported by the community and by vendors.
Is WSO2 or Apache Camel faster?
We have not benchmarked WSO2. WSO2 states about 4 to 5 seconds of startup for the Micro Integrator and recommends 1 GB of memory per container. On identical cloud machines, Apache Camel 4.23 on Java 21 started in 1.1 s and peaked at 399 MB on a simple route; Cameleer started in 2.5 ms and peaked at 7 MB on the same route.
Do WSO2 and Apache Camel support MCP and AI agents?
Yes. WSO2 Integrator can expose APIs and integrations as MCP servers and build agents with memory and RAG. Apache Camel 4.22 added camel-ai-tool and camel-mcp-server (Preview). Cameleer serves routes as MCP tools in both protocol eras, imports other MCP servers as a gateway, and enforces schema checks, run-once, approvals, cancelling timeouts and a hash-chained audit on every call (enterprise MCP platforms compared).
Can Cameleer run WSO2 integrations?
No. Cameleer runs Apache Camel routes. WSO2 Synapse sequences and Ballerina integrations are rewritten as routes; most Synapse mediators have a direct Camel equivalent, listed above.
Try Cameleer in a minute
docker run --rm -p 8080:8080 -v "$PWD:/routes:ro" pmsudhi/cameleer run /routes/hello-api.camel.yaml