IBM API Connect or Gravitee: when each platform fits a self-hosted API program
IBM API Connect fits when your API estate is already built around IBM's stack, and Gravitee fits when you want a lighter self-hosted platform you can run with a smaller team. The decision is less about feature checklists than about what you already run: DataPower gateways, IBM support obligations, and the operating capacity to manage several subsystems. API Connect is a subsystem-based product. Its management, developer portal, analytics and gateway components are separate pieces that you deploy, patch and monitor as a set. If your organization has existing DataPower investment, staff trained on IBM tooling, or a contract that requires IBM as the support path, staying on API Connect is often the lower-risk option, even though the operating footprint is larger.
Gravitee fits when you want the gateway, management API, Console UI and Portal UI as a compact self-hosted set that your platform team can install with a Helm chart on Kubernetes or with Docker Compose and MongoDB. Its Apache-2.0 repository covers the core API Management components, so you can evaluate it before any licensing conversation. The gap to plan for is edition scope. Several capabilities that teams often need for event-driven and regulated work are listed as Enterprise Edition features, including Kafka publish and subscribe over HTTP and WebSocket, MQTT5, RabbitMQ, Solace, JMS, Server-Sent Events and Webhook entrypoints, and audit trails of API consumption. Confirm with Gravitee which edition covers each of those endpoints before you commit to an architecture that depends on them.
The decision turns on four questions. First, how much of your gateway estate is DataPower and whether you can migrate it or must keep it. Second, how much of your traffic is event APIs and at what volume, since Kafka and messaging endpoints may require the Enterprise Edition. Third, which edition features your consumers and auditors require, such as audit trails, data masking or GeoIP filtering. Fourth, whether your team can operate several subsystems or prefers a single self-hosted platform. Ask both vendors for a written list of the features and support terms your environment needs, then test them against a representative API before deciding.
Which platform fits which scenario
This table maps common situations to the platform that fits better, based on documented capabilities of Gravitee and IBM API Connect. Read each row against your own estate, because the right answer depends on your gateway footprint, team size and deployment rules. Where a row depends on an edition or a feature you have not confirmed, the cell says what to verify before deciding.
| Scenario | Better fit | Why |
|---|---|---|
| DataPower-heavy estate | IBM API Connect (stay for now) | Existing DataPower gateway policies, certificates and operational runbooks move slowly. Gravitee needs policy and gateway rework, so plan a staged move instead of a switch. |
| Greenfield self-hosted API program | Gravitee | Gravitee is Apache-2.0 with a gateway, management API, Console UI and Portal UI in one repository, so a new program starts with fewer components to assemble. |
| Kafka or MQTT endpoints needed | Gravitee Enterprise Edition | Kafka publish and subscribe over HTTP and WebSocket, and MQTT5, RabbitMQ and JMS endpoints, are listed as Enterprise Edition features, so budget for a license before you design around them. |
| Small team with limited platform engineers | Gravitee, if you accept a smaller support model | Gravitee offers Helm, Docker Compose with MongoDB and Gravitee Cloud SaaS, which lowers the initial setup. Confirm who will patch, back up and upgrade the stack before choosing. |
| Regulated environment requiring air-gapped deployment | Either, after a deployment test | Gravitee documents fully self-hosted deployment for Enterprise customers. IBM API Connect self-managed software also runs on your infrastructure. Confirm offline installation, image mirroring and licensing for disconnected networks with each vendor. |
| Only the Community feature set is needed | Gravitee Community Edition | Gravitee Community Edition is self-hosted and Apache-2.0. Check that the policies you need are in Community, since Enterprise-only features such as data masking and audit trails are not available there. |
| Audit trails and data masking required | IBM API Connect or Gravitee Enterprise | Gravitee lists audit trails of API consumption and data masking as Enterprise Edition features. Confirm the equivalent capabilities in your current API Connect edition before deciding. |
| Illustrative: a team with a modest number of REST APIs and no event traffic | Gravitee Community Edition | A team with a small REST estate, one environment per stage and no event endpoints (illustrative) can usually start on Community, then add Enterprise features only if a requirement appears. |
Where the data and control sit under each model
Where API traffic, configuration and audit records are stored determines which controls your team owns and which the vendor operates. The cards below set out the Gravitee deployment options, the API Connect hosting models you should confirm, and the identity and compliance work that sits with your organization.
Gravitee SaaS and hybrid models
Gravitee documents SaaS on AWS, Azure and Google Cloud, hybrid and fully self-hosted deployment for Enterprise customers. In SaaS, the vendor operates the management layer, so your team must confirm the cloud, region and where gateway traffic and logs pass. In hybrid, you run gateways in your network while the vendor runs the management layer. Ask for the data flow diagram, log and analytics retention, and the list of sub-processors before you sign.
Self-hosted on Kubernetes with Helm
The Gravitee repository lists a Helm chart for Kubernetes that covers AKS, GKE, EKS and OpenShift. Under this model your team owns the cluster, ingress, persistent storage, backups, certificates and patching of the gateway, management API, Console UI and Portal UI. Pin the chart and image versions to a tag from the release list, and test upgrades in a non-production cluster first. Confirm with Gravitee which chart version matches the APIM 4.12 documentation you plan to follow.
Docker Compose with MongoDB
The repository README lists Docker Compose with MongoDB as a way to run APIM. It suits evaluations, proofs of concept and small footprints, but it leaves high availability, MongoDB replication, TLS termination, secrets handling and backup scheduling to your team. Before using it beyond a pilot, confirm with Gravitee whether this path is supported for production workloads, and agree who will restore MongoDB data and how long that restore is expected to take in your environment.
API Connect hosting models to confirm
IBM API Connect is available as SaaS on AWS or IBM Cloud and as self-managed software with DataPower gateways. Before comparing, confirm which model applies to your contract and where management, analytics and developer portal data reside. Ask who operates each DataPower gateway, which OpenShift or Kubernetes platform the self-managed control plane requires, and who carries upgrades and patching under your agreement. These answers change the operating effort on both sides of the comparison.
Identity and access ownership
Gravitee's Console UI serves administrators and the Portal UI serves API consumers, so each surface needs its own authentication decision. Confirm how each one connects to your identity provider, how publisher and administrator roles are separated, and who can approve client registrations. Dynamic Client Registration and audit trails of API consumption are listed as Enterprise Edition features, so confirm they are included in your license. Map these controls against your existing API Connect role model.
Compliance readiness evidence
DeployOpen can prepare systems, controls and evidence for a compliance assessment, such as access reviews, logging configuration, backup records and change history for the API platform. DeployOpen does not issue audit reports, attestations or certifications, and independent auditors or certification bodies make those determinations. Ask each vendor which evidence it provides, where logs are stored, and how long they are retained, so your assessor can trace controls to the systems that produce them.
How the operating effort differs day to day
In a self-hosted Gravitee deployment, the daily work sits with the team that runs the platform. The components to operate are the gateway nodes that serve API traffic, the management API backend, the Console UI that administrators use, the Portal UI that consumers use, and the database behind them. The repository README lists three ways to run APIM: a Helm chart for Kubernetes, including AKS, GKE, EKS and OpenShift, Docker Compose with MongoDB, and Gravitee Cloud SaaS. Choosing the Helm or Compose route keeps the stack in your environment, so your team also owns certificates, backups, monitoring and upgrades. Before you plan the first upgrade, confirm the version you deploy. The repository tags show core_4.13.1 dated October 15, 2026, while the documentation covers API Management 4.12, so check which documentation set matches your build.
Operating API Connect means keeping its subsystems and any DataPower gateways current, so the first question is which of those layers your team patches and which your vendor operates. With Gravitee Community Edition, the whole stack is self-hosted, so the same team handles database backups, TLS certificate rotation, log and metrics collection for gateway nodes, and a rollback path for each Gravitee release. Enterprise customers can choose SaaS, hybrid or fully self-hosted deployment, which moves some of that work to Gravitee. Ask Gravitee which layers it operates under each option, what upgrade support is included, and how a Community or Enterprise choice changes the monitoring you must build. Write the answers into the operating model before you select a deployment pattern.
Effort rises with the number of gateway nodes, because every node needs the same version, certificate handling and monitoring. It also rises with event integrations. Kafka publish and subscribe, MQTT5, RabbitMQ, Solace, JMS, Azure Service Bus, Server-Sent Events and Webhook entrypoints appear in Gravitee's Enterprise Edition feature list, so confirm licensing before you design around them, and each added broker adds connections to monitor. Custom policies add retesting at every upgrade. Effort falls when you use standard Helm deployments, keep configuration in version control, and agree a managed upgrade plan with a support provider. Before go-live, write a runbook covering node replacement, certificate renewal, database restore and a staged upgrade, then rehearse it in a non-production environment.
Edition costs: what Gravitee Enterprise adds and what to ask IBM
Gravitee's self-hosted Community Edition and its licensed Enterprise Edition differ in features, not just in support. Before comparing totals, separate what Gravitee charges for from what IBM bills for, because the two quotes cover different components.
Community Edition is the self-hosted baseline
Gravitee API Management is Apache-2.0 licensed, and its Community Edition is the self-hosted option. The gateway, management backend, Console UI and Portal UI are the core components you would run. Confirm with Gravitee which capabilities you need before assuming the Community build covers them, since the Enterprise-only list below is where teams most often find gaps.
Enterprise Edition requires a license
Gravitee's documentation states that the APIM Enterprise Edition requires a license. Gravitee offers SaaS, hybrid and fully self-hosted deployment for Enterprise customers. Ask whether the license is priced per deployment, per environment or by usage, and whether a hybrid setup changes the count.
Event and messaging endpoints
Enterprise adds Kafka publish and subscribe over HTTP and WebSocket, Azure Service Bus, MQTT5, RabbitMQ, Solace and JMS endpoints, plus Server-Sent Events and Webhook entrypoints. If your IBM API Connect estate exposes event APIs, map each broker and protocol to a Gravitee component and confirm which ones are licensed.
Audit trails and data protection controls
Enterprise includes audit trails of API consumption and activity, data masking and GeoIP filtering. These matter for regulated teams that must show who called which API and keep sensitive fields out of logs. Check whether your compliance evidence depends on these features, because they would be licensed rather than included in the Community build.
Redis caching, Alert Engine and reporting
Enterprise adds Redis caching, the Alert Engine and Cloud Reporter, along with Dynamic Client Registration and an enterprise policy pack. Each one can replace a function you pay for in IBM API Connect or cover with separate tooling. List the policies and alerts your operations team uses today and ask Gravitee which are in the enterprise pack.
LLM and MCP proxies, and what to ask IBM
Enterprise includes Agent-to-Agent, LLM and MCP proxies. Include them only if you need them, since they add scope to the license. Ask IBM for a written quote covering subsystems, DataPower gateways, support tier and renewal terms, and compare it line by line with the Gravitee license scope.
Cost of ownership: one-time work and recurring spend
The cost comparison splits into two buckets: one-time migration work and recurring spend. On the API Connect side, recurring spend covers the subscription or self-managed software licence renewed each year, the DataPower gateway capacity behind it, and the OpenShift or Kubernetes platform and databases that host the management subsystems. On the Gravitee side, the Apache-2.0 Community Edition carries no licence fee, so recurring spend is infrastructure (Kubernetes or VMs, MongoDB and the gateway nodes), staff time to operate the platform, and support if you buy it. Gravitee's Enterprise Edition requires a licence, and the features that matter most for some estates (such as Kafka, MQTT, RabbitMQ and JMS endpoints, audit trails and data masking) sit in that edition. Confirm in writing which of your required features are Community or Enterprise before you compare totals.
One-time work is usually larger than the first year's licence difference suggests. It includes exporting API definitions and products, rebuilding assembly policies and gateway scripts as Gravitee policies and flows, re-creating consumer organizations and applications, re-issuing credentials, and running parallel traffic during cutover. Ask any integrator, including DeployOpen, for a fixed-scope written proposal listing the APIs, policies and consumers in scope, the test environments and the cutover method. Ask Gravitee or its partners to quote Enterprise licences per deployment model, and ask IBM for your current renewal figures and the DataPower and OpenShift costs you pay directly. Figures should come only from your own vendor quotes and your own infrastructure invoices, not from estimates on this page.
Drivers that move the totals are the number of gateways and environments, peak request volume, the event and streaming endpoints you need, how many APIs need migration effort, and how many staff already run Kubernetes. Build a three-year view with each line labeled one-time or recurring, and include a line for staff time on upgrades, since Gravitee releases and your own patching create ongoing work. Compare the two options at the same traffic, availability target and support level so the figures match.
How a move from API Connect to Gravitee usually proceeds
The sequence moves APIs, products, plans and consumers in a controlled order so that Gravitee serves live traffic before DataPower dependencies are retired. Each step ends with a check that the next one can rely on.
Inventory APIs, products, plans and consumers
Your API platform team, with the owners of each API, lists every API, product, plan, consumer organization, application and subscription in API Connect. Record which gateways (DataPower or SaaS-hosted gateways) serve each API, which backends they call, and which consumers depend on each plan. Confirm with your API Connect administrators which artifacts are managed outside the product, such as gateway scripts stored in source control. The step is done when you have a signed-off inventory with an owner for every API and a list of consumers who must be contacted before cutover.
Export OpenAPI definitions and gateway artifacts
Export the OpenAPI definitions for each API and the assembly policies, gateway scripts, certificates, and property or configuration files that sit beside them. Store these in version control so every change after this point is traceable. Verify that each exported definition validates and that the backend endpoints it references still exist. The output is a repository with one folder per API containing its specification and the original configuration, which becomes the input for policy mapping.
Map assembly policies and scripts to Gravitee policies
Architects and gateway engineers map each assembly step, such as security, rate limiting, transformation, routing and error handling, to a Gravitee policy or to a custom policy where none exists. Gateway scripts usually need the most rework and may need redesign rather than translation. Exact policy mapping depends on your own configuration and on the Gravitee edition and plugins you select, so confirm each mapping against the Gravitee documentation and in a test environment. The output is a mapping sheet that records, for every API, which behavior is preserved, changed or removed, and who approved each decision.
Stand up the Gravitee environment
Platform engineers deploy Gravitee in your infrastructure, typically with the Helm chart for Kubernetes or Docker Compose with MongoDB for smaller environments, as listed in the project README. Configure identity integration, TLS certificates, logging, backups and network paths to the backends. Decide early whether you need Enterprise Edition features, such as the audit trails or the event entrypoints, because licensing applies to those features. The step is done when a non-production environment passes health checks and a sample API proxied through the gateway returns the expected response.
Migrate plans, subscriptions and credentials
Recreate the APIs, plans and subscriptions in Gravitee from the inventory and mapping sheet, and set up the consumer applications and their access rules. Consumer credentials cannot be copied from API Connect as-is, so plan a re-issue of keys or tokens with a dated notice to each consumer and a support contact for questions. Test each plan against a representative consumer. The step is done when every consumer has a Gravitee subscription and has confirmed that its credentials work in the staging environment.
Redesign event APIs where needed
If your API Connect estate includes event-driven interfaces, review them separately, because the mapping for synchronous HTTP APIs does not carry over directly. Gravitee documents event-related endpoints, such as Kafka publish and subscribe, and lists several of them as Enterprise Edition features, so confirm which endpoints you need and their license requirements before design. Event consumers may need changes to topics, message formats or delivery semantics. The output is a written design for each event API and a decision on which consumers must change.
Run parallel traffic and validate
Route a controlled share of consumer traffic through Gravitee while API Connect and DataPower continue to serve the rest. Compare responses, error rates, latency and logs between the two paths, and log every difference so the owning team can accept it or fix it. Agree the rollback steps with the API owners before traffic moves. The step is done when the agreed comparison criteria are met for each API and the owners have signed off on the differences that remain.
Cut over and retire DataPower dependencies
Move all traffic for each API to Gravitee in an agreed window, keeping the API Connect path available for rollback until the owners accept the result. After acceptance, disable the old subscriptions, remove DataPower routes and certificates, and update monitoring, runbooks and access reviews. Retire the DataPower gateways only when no API still depends on them, and record the final state in the migration log. The step is done when API Connect no longer serves production traffic and the decommissioning evidence is filed with your compliance team.
Questions buyers ask before choosing Gravitee or staying with API Connect
How much does moving from API Connect to Gravitee cost?
The cost is the sum of several components, and no single figure applies to every estate. Expect one-time costs for planning, exporting and re-mapping APIs, policies and developer portal content, testing, and cutover, plus recurring costs for infrastructure, Gravitee licensing if you need Enterprise features, and staff time for operations. Your current API Connect bill covers SaaS or self-managed subscriptions, DataPower gateways and the platform underneath them, so compare each component rather than one total. The main drivers are the number of APIs and policies, how many consumer applications must be re-credentialed, and whether you need Enterprise Edition features. Ask IBM for the renewal terms in writing and ask Gravitee which edition covers each feature you use. Gravitee documents SaaS, hybrid and fully self-hosted deployment for Enterprise customers, and Gravitee Cloud is also listed as a way to run APIM.
How long does an API Connect to Gravitee migration take?
The timeline depends on how much of your estate needs to move and how much of it depends on custom gateway logic. The main factors are the count of APIs, products and plans, the number of assembly policies and gateway scripts that must be mapped to Gravitee policies, how many consumer organizations and applications need re-issued credentials, and how many systems call the APIs directly. Teams running several environments usually move one API domain at a time with parallel running, which adds time but lowers cutover risk. No duration is given here because none was supplied for this comparison. Ask any partner to base the schedule on a written inventory of your APIs and policies, and confirm with Gravitee which deployment model (Helm on Kubernetes, Docker Compose with MongoDB, or Gravitee Cloud) fits your change windows.
Can our own team migrate from API Connect to Gravitee without outside help?
Yes, a capable platform team can do it, provided it has time, a clear inventory and someone who knows both platforms well. The work includes exporting OpenAPI definitions, rebuilding policies in Gravitee's model, setting up the gateway, management backend, Console UI and Portal UI, and moving catalog content and consumer access. Teams that do this in-house tend to underestimate the consumer re-onboarding and the testing of edge-case policies. If you want outside help, DeployOpen plans, implements, integrates, hardens, backs up, upgrades and documents self-hosted open-source platforms in your own infrastructure, and most engagements are fixed-scope with scope, deliverables and timelines agreed in writing before work starts. Ask for that written scope before comparing offers.
What skills and staff time does a self-hosted Gravitee platform need?
Operating Gravitee yourself requires Kubernetes or Docker skills, MongoDB administration if you use the documented Docker Compose setup, certificate and identity configuration, and regular upgrades that follow the release tags, such as core_4.13.1 in the Gravitee API Management repository. Your team also needs ownership of the gateway, the management backend and the portal, plus monitoring and backup routines. Staff time is recurring, and it rises with the number of gateways, environments and API owners who publish through the console. Ask Gravitee which upgrade and support path matches your edition, and confirm that your security team accepts the chosen deployment model before committing to a headcount plan.
Is Gravitee Community Edition enough to replace API Connect?
It depends on which features your APIs depend on. Gravitee API Management is Apache-2.0 licensed and the Community Edition is self-hosted, so the core gateway, management and portal capabilities are available without a license. Gravitee's documentation states that the Enterprise Edition requires a license, and it lists features such as data masking, GeoIP filtering, Dynamic Client Registration, the Alert Engine, Redis caching, audit trails of API consumption and activity, and several event and agent-related proxies. Compare your current API Connect feature use against that list before deciding. Confirm with Gravitee in writing which features your estate needs and whether they are Enterprise-only.
How does Gravitee handle event APIs compared with API Connect?
Gravitee supports event-oriented entrypoints and endpoints, but several of them sit in the Enterprise Edition. The supplied list includes Kafka publish and subscribe over HTTP and WebSocket, Azure Service Bus, MQTT5, RabbitMQ, Solace and JMS endpoints, Server-Sent Events and Webhook entrypoints. If your API Connect estate exposes synchronous REST APIs only, the migration is mostly a gateway and policy exercise. If it exposes or consumes event streams, map each event channel to a supported Gravitee endpoint, check whether it needs an Enterprise license, and test delivery, ordering and retry behavior with your brokers. Ask Gravitee to confirm the exact configuration and broker versions for each channel.
What should we ask IBM and Gravitee for in a quote?
Ask each vendor for line items, not a single total, so you can compare like with like. From IBM, request renewal pricing for your current subscription or software term, the cost of DataPower gateways, the supported platform underneath, and the terms that apply if you move to the V12.1 upgrade path instead of leaving. From Gravitee, ask which edition and deployment model is quoted, which Enterprise features are included, what support covers, and how upgrades are handled. For any implementation partner, ask for the written scope, deliverables, acceptance criteria, timeline, responsibilities for cutover and rollback, and what is included after go-live. Put every assumption in writing so the quotes can be compared fairly.
How DeployOpen helps you evaluate, implement or migrate
DeployOpen plans, implements, hardens and supports self-hosted open-source platforms inside your own cloud accounts, data centers or air-gapped networks. For IBM API Connect vs Gravitee, we start with a written scope that tests whether Gravitee fits your API estate before any migration work is committed.
How we scope
- Inventory which API Connect subsystems, DataPower gateways and consumer organizations your estate actually uses today.
- Agree in writing which Gravitee components, editions and deployment modes are in scope for the evaluation.
- Engagements are fixed-scope, with deliverables and timelines confirmed before any work begins, and quotes follow from that scope.
How we build
- Stand up a Gravitee gateway, management backend, Console UI and Portal UI in your environment for a proof of concept.
- Map representative API proxies, policies and security settings from API Connect to Gravitee and test them against real traffic patterns.
- Test synchronous and event API paths, including any Kafka or Enterprise Edition endpoints you need, and document any gaps found.
How we hand over
- Deliver runbooks for installation, upgrades, backup and restore, covering the Helm chart or Docker Compose setup you choose.
- Document the feature comparison, the Community versus Enterprise decisions and the evidence needed for your internal reviews.
- Provide a migration plan with consumer cutover steps, credential reissue steps and a rollback path for each API group.
How we support
- Ongoing support, upgrades and continuous security testing are available as retainers after handover.
- Security testing of APIs and the gateway can run alongside the migration, covering authentication, authorization and rate limiting.
- Ask for the retainer terms, upgrade approach and response arrangements in writing before the engagement starts.
