The short answer
0mcp and Gravitee can both expose APIs to AI agents through MCP, but they start at different layers. 0mcp starts with an API definition and produces a hosted MCP server. Gravitee starts with API management—gateways, policies, environments, analytics, events, identity, and agent governance—with MCP inside that broader platform. Its MCP documentation describes converting a Gravitee v4 proxy API from OpenAPI, while its pricing page lists MCP Tool Server and MCP Proxy in a custom-priced Agent Management Package.
This comparison uses public sources checked on 2026-08-07. Where Gravitee’s public documentation does not establish a capability, this page says Not publicly confirmed.
Quick comparison
| Capability | 0mcp | Gravitee |
|---|---|---|
| Product scope | Focused hosted MCP server platform | API, event, identity, and AI-agent management platform |
| MCP creation | Import an API definition, select operations, and generate a hosted server | Add an MCP entrypoint to a Gravitee v4 proxy API and generate tools from OpenAPI |
| Current documented inputs | Swagger 2.0, OpenAPI 3.0/3.1, Postman collections | OpenAPI for MCP generation; general APIM import supports Swagger V2 and OpenAPI V3 |
| Direct Postman-to-MCP import | Supported in current 0mcp baseline | Not publicly confirmed |
| Hosted MCP infrastructure | Managed by 0mcp | Gravitee Cloud hosted gateways available |
| Self-hosting | Not the current 0mcp deployment model | Self-hosted and hybrid APIM options documented |
| MCP proxying | Not the primary 0mcp workflow | MCP Proxy for upstream MCP servers is documented |
| Tools/resources/prompts | Supported in the current 0mcp baseline | Documented as MCP capabilities; custom authoring scope is Not publicly confirmed |
| Authentication | API key, Bearer, and OAuth pass-through to the source API | APIM plans/policies; OAuth2 with Gravitee AM and DCR documented for MCP proxying |
| Version control | Save, review, and restore MCP configuration versions | API lifecycle/export/import features; MCP-specific rollback flow is Not publicly confirmed |
| Testing | Hosted playground | MCP Inspector is shown in an official walkthrough; dedicated native playground is Not publicly confirmed |
| Monitoring | Usage logs and analytics | MCP dashboard metrics for requests, latency, tools, resources, prompts, and status responses |
| Custom MCP domain | Eligible paid plans, CNAME/TXT verification, automatic HTTPS/SSL | Custom Gateway/API domains documented; custom domain specifically for a generated MCP endpoint is Not publicly confirmed |
| Entry pricing | 14-day trial; Starter and Pro request-quota plans | APIM Planet listed at $2,500/month; Agent Management is custom-priced |
What is Gravitee?
Gravitee is an API-management platform with API, event, access-management, and AI-agent lines. Its homepage and documentation hub cover cloud, hybrid, and self-hosted environments.
Its MCP story includes MCP Tool Server for v4 proxy APIs, MCP Proxy for upstream MCP servers, and Access Management protection for external MCP resources. Gravitee also publishes an open-source API Management repository.
What is 0mcp?
0mcp is a hosted platform for creating, hosting, updating, and monitoring MCP servers from existing API definitions. It supports Swagger 2.0, OpenAPI 3.0/3.1, and Postman collections through its API-source documentation and Postman guide.
The workflow is API-definition-first: import a specification, select operations, generate tools/resources/prompts, edit capability details, test in the playground, and deploy. 0mcp also provides Streamable HTTP, auth pass-through, version restoration, logs, analytics, custom subdomains, and automatic HTTPS/SSL. Local/stdio, GraphQL, team roles/permissions, public API/CLI/SDK, webhooks, and file/binary transfer are not current baseline claims.
0mcp vs Gravitee: MCP server creation
Gravitee’s clearest documented API-to-MCP path requires a v4 proxy API. The APIM 4.10 guide says to open the API’s Entrypoints screen, enable the MCP Entrypoint, choose “Generate Tools from OpenAPI,” provide the OpenAPI specification, create the generated tools, and deploy the API. Each OpenAPI operation becomes an MCP tool.
That makes Gravitee a strong fit when your API already belongs in a managed gateway, but ties the MCP workflow to Gravitee’s API model, plans, policies, deployment, and Gateway runtime. The exact workflow for authoring arbitrary resources/prompts or changing every generated tool field is Not publicly confirmed.
Gravitee’s general API import documentation confirms Swagger V2 and OpenAPI V3 import for APIM. That is not the same as confirming that a Swagger 2.0 file can be sent directly to the MCP tool-generation dialog. Direct Swagger-to-MCP behavior and Postman collection import are Not publicly confirmed.
0mcp is more direct if the source of truth is already a Swagger, OpenAPI, or Postman definition: choose operations and manage the hosted MCP layer without first creating a Gravitee Gateway API. The tradeoff is that 0mcp does not provide Gravitee’s general-purpose API gateway, event-management, IAM, or self-hosted data-plane model.
Gravitee’s official walkthrough uses MCP Inspector for testing and shows API traffic and logs. 0mcp provides a product-level playground; a dedicated Gravitee-hosted equivalent is Not publicly confirmed.
Hosting and deployment comparison
Gravitee offers three deployment boundaries. Gravitee Cloud provides a hosted control plane with Gravitee-hosted, hybrid, or federated gateways. The hosted Gateway guide says Gravitee manages operations, scaling, high availability, and upgrades for Cloud-hosted Gateways. In a hybrid installation, Gravitee manages the control plane while the customer runs the Gateway/data plane. Fully self-hosted APIM is also documented.
0mcp manages the hosted MCP infrastructure. A customer gets a hosted Streamable HTTP endpoint under an 0mcp domain or eligible custom subdomain without operating a VM, API gateway, database, TLS proxy, or Gateway upgrade process. 0mcp does not currently position local/stdio or customer-operated self-hosting as part of the product baseline.
MCP server maintenance comparison
Gravitee’s Cloud-hosted Gateway model includes managed configuration/scaling and upgrades. Its upgrade policy distinguishes Cloud-hosted, hybrid, and self-hosted responsibilities. APIM lifecycle controls are documented; MCP-specific save/review/restore was Not publicly confirmed.
0mcp focuses the maintenance surface around the hosted MCP server: save a version, review changes, restore a prior version, test behavior, inspect logs, and review analytics. The source API remains the customer’s responsibility, but the generated MCP layer does not require a separate customer-operated Gateway.
Custom domain and branding comparison
Gravitee documents custom domains for Cloud Gateways. The custom-domain guide requires a CNAME, verifies DNS, and automatically issues an SSL certificate. The default Gateway URL remains available as a fallback, and multiple custom domains are allowed within plan limits. Developer Portal branding is also documented.
The important distinction is endpoint scope: the public guide clearly documents custom Gateway/API domains, but it does not explicitly say that a generated MCP Tool Server is exposed at that customer domain. Treat a managed custom MCP URL as Not publicly confirmed until a live configuration or contract verifies it.
0mcp’s custom-domain documentation is specifically about hosted MCP subdomains. Eligible paid plans use CNAME/TXT verification and automatic HTTPS/SSL; root domains and live custom logo upload are not current baseline features.
Authentication and security comparison
Gravitee’s OAuth2 MCP proxy guide documents APIM proxying an upstream MCP server while Access Management issues OAuth2 tokens and supports Dynamic Client Registration. An OAuth2 plan verifies access at the Gateway. Its pricing page also lists an Enterprise Auth Package with MCP Resource Server, OpenFGA Permission Engine, and AuthZen PDP.
Gravitee’s Access Management MCP page is explicitly marked preview. It describes an external MCP server as a protected resource and documents OAuth 2.1 scopes, fine-grained authorization, and audit logging. It does not represent the Access Management configuration itself as the runtime that executes MCP tools.
Gravitee’s Trust Center lists GDPR, HIPAA, ISO/IEC 27001, PCI DSS v4.0.0, and SOC 2 Type 2, with reports gated behind access. This shows what Gravitee publicly lists, not independent verification of scope, date, product coverage, or contractual applicability.
0mcp passes API-key, Bearer-token, and OAuth authentication through to the source API; credentials are passed during requests and not stored by 0mcp. It provides logs and analytics, but does not currently claim team roles/permissions, a formal SLA, or formal compliance certifications.
Pricing and business model
Gravitee’s public pricing is enterprise-oriented. APIM Planet is listed at $2,500/month with unlimited users/APIs, one production Gateway, and Gold support. APIM Galaxy and Universe are custom-priced. Event Management Comet is listed at $1,250/month. The Agent Management Package—LLM Proxy, MCP Proxy, A2A Proxy, MCP Tool Server, and Agent Catalog—is custom-priced.
The same page describes flat pricing, unlimited API calls/events, and unlimited users. Confirm exact entitlements and terms in the order form.
0mcp uses a self-serve model: a 14-day trial with no card, followed by Starter and Pro request-quota plans. Starter begins at $9/month for a 5,000-request quota, and Pro begins at $19/month for the same quota; see the current 0mcp pricing page for all tiers and billing options. Starter includes three MCP servers and one workspace; Pro includes unlimited MCP servers/workspaces and unlimited custom domains.
These prices are not direct substitutes. Gravitee’s APIM price includes a broader API-management runtime and enterprise operating model. 0mcp’s plans are designed around hosted MCP creation and request quotas.
Feature comparison table
| MCP-relevant feature | 0mcp | Gravitee |
|---|---|---|
| API-definition workflow | Import, select operations, generate hosted MCP | v4 proxy API plus MCP entrypoint and OpenAPI tool generation |
| Swagger 2.0 | Supported | General APIM import confirmed; direct MCP generation Not publicly confirmed |
| OpenAPI 3.0/3.1 | Supported | OpenAPI input for MCP confirmed; exact version matrix depends on APIM version |
| Postman | Supported | Not publicly confirmed |
| Tools | Generated, selectable, and editable | OpenAPI operations become tools; exact editing controls Not publicly confirmed |
| Resources | Supported in current 0mcp baseline | Protocol capability documented; custom authoring scope Not publicly confirmed |
| Prompts | Supported in current 0mcp baseline | Protocol capability and analytics documented; authoring scope Not publicly confirmed |
| Authentication | API key, Bearer, OAuth pass-through | APIM plans/policies; OAuth2/AM/DCR MCP flow documented |
| Authorization | Source API auth model | Gateway plans/policies plus Enterprise Auth/OpenFGA/AuthZen options |
| Testing | Hosted playground | MCP Inspector walkthrough; native MCP playground Not publicly confirmed |
| Versioning | Save, review, restore | API lifecycle/export/import; MCP-specific rollback Not publicly confirmed |
| MCP observability | Logs and analytics | MCP dashboard with requests, latency, tools, resources, prompts, status metrics |
| Hosting | Managed hosted MCP | Cloud-hosted, hybrid, and self-hosted deployment choices |
| Custom endpoint domain | Eligible paid plans; CNAME/TXT and automatic TLS | Custom Gateway/API domain; MCP-specific mapping Not publicly confirmed |
| Self-hosting | Not current baseline | Documented |
| Public price | Starter/Pro request-quota plans | APIM Planet $2,500/month; Agent Management custom |
Where 0mcp may be a better fit
0mcp may be a better fit when:
- Your source of truth is a Swagger, OpenAPI, or Postman definition and you want to expose selected operations quickly.
- You need a hosted MCP endpoint without running a Gravitee Gateway, data plane, database, or TLS layer.
- You want a clearly documented custom MCP subdomain with DNS verification and automatic HTTPS/SSL.
- You want self-serve request-quota pricing rather than a broader API-management package.
- You need a compact workflow that combines version restoration, playground testing, usage logs, and analytics.
These are workflow-fit observations, not claims that 0mcp is universally better.
Where Gravitee may be a better fit
Gravitee may be a better fit when:
- You already operate Gravitee API Management and want MCP at the Gateway layer.
- You need API gateway policies, subscriptions, developer portals, event management, IAM, or agent catalog capabilities alongside MCP.
- You need a hybrid or self-hosted data plane for network, residency, or infrastructure-control reasons.
- You require enterprise OAuth2/DCR, fine-grained authorization, or OpenFGA/AuthZen options.
- You need enterprise support tiers, a formal procurement process, or a Trust Center review path.
- You want a platform that can proxy and govern upstream MCP servers in addition to generating MCP tools from APIs.
Which platform should you choose?
Choose 0mcp when the job is: “I have an API definition and need a maintained, hosted MCP server with a customer-facing endpoint.” It is the smaller product boundary and the more direct self-serve workflow.
Choose Gravitee when the job is: “I need to govern APIs, events, identities, and agent traffic across gateways and environments, and MCP is one part of that platform.” It offers more deployment flexibility and governance depth, but it may introduce more infrastructure and commercial complexity than an MCP-only use case requires.
Consider building or operating the MCP layer in-house if you require a runtime, network policy, data residency, export format, or compliance boundary that neither vendor publicly guarantees for your exact configuration.
Migration and switching considerations
Moving from Gravitee to 0mcp is easiest with the source OpenAPI or Swagger definition, backend URLs, authentication requirements, and capability metadata. Do not assume Gravitee’s generated MCP metadata, policies, OAuth configuration, logs, or Gateway settings export directly into 0mcp; confirm the full export before cancelling.
Moving from 0mcp to Gravitee usually means importing or recreating the API in APIM, creating a v4 proxy API, configuring plans/policies, enabling the MCP entrypoint, generating tools from OpenAPI, and deploying a Gateway. 0mcp’s DNS record will not transfer automatically.
Before switching, ask both vendors:
- Can the API definition, generated tools, resources, prompts, versions, secrets, logs, and analytics be exported?
- What happens to the MCP endpoint and data after cancellation?
- Which MCP transports and OAuth flows are supported in the target version and plan?
- Is a customer-owned MCP domain supported, and who manages certificates, upgrades, backups, and restoration?
Final recommendation
Gravitee is a strong enterprise API-management and agent-governance platform with credible, documented MCP capabilities. Its main advantages are breadth, Gateway policy enforcement, OAuth2/authorization options, observability, Cloud/hybrid/self-hosting choices, and enterprise operating controls.
0mcp is the more focused choice for API-definition-first MCP delivery. Its main advantages are a short hosted workflow, self-serve request-quota pricing, explicit custom MCP subdomains, version restoration, playground testing, and managed MCP infrastructure.
Choose based on the infrastructure boundary you need: 0mcp for a fast hosted MCP layer; Gravitee for MCP as part of an enterprise API, event, identity, and agent-management platform. Validate transport support, Swagger/Postman import, custom MCP domains, export behavior, compliance scope, and contract terms before making a production decision.
Start with 0mcp
If you already have an API definition, start the 0mcp 14-day free trial. Import a representative specification, expose a small set of operations, test authentication and tool behavior in the playground, review logs and analytics, and verify the hosted MCP endpoint before expanding the rollout.
Last verified
2026-08-07. Gravitee pricing, documentation, Cloud deployment guidance, custom-domain instructions, Trust Center, legal/support terms, and official repository links should be rechecked before publication because product names, plan entitlements, versions, and pricing can change.