The short answer
0mcp and API To MCP both put APIs behind hosted MCP endpoints, but they start from different parts of the workflow. 0mcp imports an API definition, selects operations, and maintains the resulting server. API To MCP configures an API base URL, defines API or workflow tools, or uses an AI-agent manager.
If your source of truth is an OpenAPI, Swagger, or Postman definition, 0mcp offers the more direct documented path. If you need to configure REST or GraphQL manually, compose workflows, map output with JMESPath, or let an AI agent manage setup, API To MCP may be a better fit. Sources were checked on 2026-08-07; unconfirmed capabilities are marked Not publicly confirmed.
Quick comparison
| Capability | 0mcp | API To MCP |
|---|---|---|
| MCP server creation | Import an API definition or Postman collection, choose operations, and publish a hosted server. | Configure a REST or GraphQL API in a visual builder, or use the manager MCP from an AI agent. |
| API or OpenAPI import | Swagger 2.0, OpenAPI 3.0/3.1, and Postman collections are supported inputs. | OpenAPI, Swagger, and Postman import are Not publicly confirmed; the documented flow starts with an API base URL. |
| Managed MCP hosting | Hosted infrastructure managed by 0mcp. | Hosted remote Streamable HTTP runtime on apitomcp.io. |
| Ongoing maintenance | 0mcp manages the generated server, versions, hosted endpoint, logs, and analytics; the source API remains the customer’s responsibility. | Runtime deployment and server operations are managed; API configuration, upstream behavior, and tool definitions remain customer responsibilities. Automatic API-drift or dependency maintenance is Not publicly confirmed. |
| Custom MCP domain | Custom subdomains on eligible paid plans, with CNAME/TXT verification and automatic HTTPS/SSL. | Custom domains are advertised for enterprise use and marked enabled in public plan data for Professional and Business; DNS and endpoint details are Not publicly confirmed. |
| Authentication | API key, Bearer token, and OAuth pass-through to the upstream API. | Upstream no-auth, API key, Bearer, Basic Auth, OAuth Client Credentials, and OAuth Authorization Code, plus separate MCP access modes. |
| Versioning | Save versions, review changes, restore an earlier version, and update without changing the hosted URL. | Templates and snapshots are documented; explicit rollback semantics are Not publicly confirmed. |
| Logs and analytics | Usage logs and analytics for requests, errors, latency, client sources, and capability usage. | Analytics dashboard, request logs, error rates, response times, and usage patterns are documented. |
| White-label branding | MCP name and hosted domain controls; logo customization is not currently available. | Custom-domain capability is advertised; white-label logo, colors, portal, and brand-removal options are Not publicly confirmed. |
| Pricing model | 14-day trial, then Starter and Pro quota-based plans. | Free, Starter, Professional, and Business plans based on API calls, servers, tools, and OAuth connections. |
What is API To MCP?
API To MCP presents itself as a hosted MCP platform for real APIs. Its homepage and documentation overview describe two creation paths: a visual builder for configuring an API, tools, tests, and deployment, and an AI Agent Builder connected through the manager MCP at https://mcp.apitomcp.io/.
The product supports REST and GraphQL integrations for internal systems, SaaS, public data, marketing, commerce, billing, and content use cases. These are examples, not customer references. A parent company, legal entity, geographic footprint, and public customer list are Not publicly confirmed. Older metadata and footer content reference CosmicOcean; the relationship should be verified.
API To MCP is a managed, self-serve SaaS product with a free tier and paid plans. It is not presented as an open-source MCP runtime. The features page also describes templates, public sharing, hosted deployment, authentication, analytics, and enterprise-oriented features.
What is 0mcp?
0mcp is a platform for creating and hosting MCP servers from existing API definitions. The 0mcp documentation describes importing a supported source, choosing operations, publishing a version, and connecting the hosted endpoint to an MCP-compatible client. Current positioning supports Swagger 2.0, OpenAPI 3.0, OpenAPI 3.1, and Postman collections.
0mcp supports generated tools, resources, and prompts; Streamable HTTP hosting; API key, Bearer token, and OAuth pass-through; version restoration; playground testing; logs; analytics; custom subdomains; DNS verification; and automatic HTTPS/SSL. It is aimed at SaaS companies and platforms that want agent access without operating MCP infrastructure. See the 0mcp product overview.
0mcp vs API To MCP: MCP server creation
The clearest difference is the input model. 0mcp starts with an API contract. Its product flow detects the available operations, lets the customer select what to expose, validates the imported specification, and creates the MCP server. Customers can then create or edit tools, resources, and prompts and adjust their names and descriptions. A 0mcp playground is available for testing the generated capabilities, authentication, and usage behavior before relying on the endpoint.
API To MCP starts with an API base URL and builder configuration. The API integration guide documents REST and GraphQL inputs, authentication, headers, tool paths or GraphQL operations, schemas, and response handling. The tool documentation distinguishes direct API tools from workflow tools that chain multiple calls. JMESPath mapping and optional output schemas shape responses for agents.
API To MCP also has an agent-driven creation path. Its AI Agent Builder documentation says an agent can create, update, test, deploy, stop, start, and inspect servers through the manager MCP, with scoped manager-token permissions. That suits teams that want an IDE or coding agent to operate the builder. 0mcp currently manages server creation through its dashboard and does not publicly offer a public API, CLI, or SDK.
API To MCP’s official material does not publicly document a first-party OpenAPI, Swagger, or Postman importer, so an import workflow should not be assumed. Its public material also does not clearly confirm generated MCP resources or prompts. Conversely, 0mcp does not currently position GraphQL as a supported input.
Hosting and deployment comparison
0mcp provides managed hosted MCP infrastructure. The customer imports and configures the API, while 0mcp operates the hosted MCP layer. The service is Streamable HTTP; saved configuration changes update the hosted server without changing its URL. Custom subdomains can be attached on eligible plans after DNS verification.
API To MCP also deploys the runtime for the customer. Its deployment guide describes cloud deployment, automatic SSL configuration, subdomain routing, health checks, tool-availability checks, and API-connectivity tests. The MCP protocol guide specifies Streamable HTTP with JSON-RPC 2.0 over HTTP POST. Generated endpoints use an apitomcp.io subdomain, with examples showing an automatically generated hash in the subdomain.
The reviewed sources do not confirm deployment regions, infrastructure provider, isolation, autoscaling, CI/CD, preview environments, disaster recovery, or data residency. Terms say API To MCP strives for 99.9% uptime but does not guarantee uninterrupted service; the features page separately lists a 99.9% SLA. A formal SLA is therefore Not publicly confirmed.
MCP server maintenance comparison
After launch, 0mcp manages the generated server configuration, hosted infrastructure, versions, logs, and analytics. The customer remains responsible for the original API, including availability, business logic, authorization, pagination, and rate limits. Its version workflow makes API and MCP changes reviewable and restorable.
API To MCP manages the hosted runtime and provides dashboard or agent-driven controls to update, test, deploy, stop, start, and inspect servers. Its templates or snapshots copy configuration and tools without live access or stored secrets. The customer still owns the upstream API, credentials, provider permissions, behavior, and tool/workflow definitions. Automatic dependency updates, API change monitoring, backup restoration, and a managed maintenance contract are Not publicly confirmed.
Hosted MCP infrastructure reduces operational work, but it does not make the underlying API self-maintaining. Ask how upstream schema changes, expired OAuth connections, rate limits, and breaking releases are handled.
Custom domain and branding comparison
0mcp supports a custom MCP subdomain such as mcp.example.com on eligible paid plans. Its custom-domain workflow describes adding a domain, publishing a DNS verification record, and using the verified URL while 0mcp hosts the server. The current baseline specifies CNAME/TXT verification, automatic HTTPS/SSL, no root domains, Starter with zero custom domains, and Pro with unlimited custom domains. Customers can control the MCP name and hosted domain; logo customization is not currently available.
API To MCP gives every deployed server a vendor subdomain and automatic HTTPS. The features page lists custom domains under its enterprise-ready feature set. In addition, the public pricing page contains plan data marking custom domains enabled for Professional and Business. The visible pricing cards and documentation do not explain the DNS record type, whether the custom domain applies to the MCP endpoint or another surface, certificate handling, number of domains, setup fees, or dashboard and login-domain options. Those details are Not publicly confirmed.
Do not evaluate “white label” alone. Ask whether the customer gets a stable branded endpoint, who manages the certificate, and whether the vendor name remains in the connection experience. API To MCP’s logo, colors, portal, and brand-removal options are Not publicly confirmed.
Authentication and security comparison
0mcp uses authentication pass-through: the generated server accepts the API key, Bearer token, or OAuth flow required by the original API and forwards credentials to it. Public product information states that API credentials and proxied payloads are not stored, while operational metadata such as status, latency, errors, client source, and outbound size can be used for monitoring. 0mcp does not claim SOC 2, GDPR certification, or another formal compliance certification.
API To MCP separates two layers. The authentication guide documents upstream no-auth, API key, Bearer token, Basic Auth, OAuth Client Credentials, and OAuth Authorization Code. Separately, MCP clients can connect through Open access, OAuth/Bearer Token access, or a platform-issued Client Token. Stored credentials and OAuth tokens are described as encrypted at rest and masked in the owner UI; snapshots and forks are described as excluding live secrets.
API To MCP’s guide says the upstream provider remains the permission source. Manager tokens can be scoped, but the platform does not override upstream roles. Team roles, SSO/SAML, SCIM, IP allowlists, private networking, and formal certifications are Not publicly confirmed. Its privacy policy, last updated December 30, 2024, states TLS 1.2+, AES-256, 30-day usage logs, two-year aggregated analytics, and seven-year billing records. Confirm current terms.
Pricing comparison
The products use different units. API To MCP counts each successful MCP tool execution as one API call and says that listing tools, handshakes, failed authentication, and failed tool executions do not consume the monthly quota. 0mcp uses request quotas. The numbers below are therefore directional plan information, not a claim that one platform is cheaper for a given workload.
| Plan | Monthly price | Annual price | Included requests/calls | Included servers | Included users | Included domains | Included support | Important restrictions |
|---|---|---|---|---|---|---|---|---|
| 0mcp Starter | From $9/month at 5,000 requests | From $84/year at 5,000 requests | Quota bands from 5,000 to 500,000 requests | 3 MCP servers | Not publicly specified; 1 workspace | 0 | Email, dashboard support, Discord; 12-hour target | 1-day log/analytics retention; no custom domains |
| 0mcp Pro | From $19/month at 5,000 requests | From $180/year at 5,000 requests | Quota bands from 5,000 to 500,000 requests | Unlimited | Not publicly specified; unlimited workspaces | Unlimited | Same support channels and target | 7-day log/analytics retention; advanced analytics and branding features |
| API To MCP Free | $0/month | $0/year | 3,000 API calls/month | 1 active server | Not publicly specified; no OAuth connections listed | Not enabled in public plan data | Email support | 15 tools/server |
| API To MCP Starter | $9.99/month | $99/year | 10,000 API calls/month | 3 active servers | 30 OAuth connections | Not enabled in public plan data | Email support | Workflow tools and OAuth Authorization Code included |
| API To MCP Professional | $29.99/month | $299/year | 50,000 API calls/month | 15 active servers | 300 OAuth connections | Enabled in public plan data | Email support | Unlimited tools/server; no published priority-support commitment |
| API To MCP Business | $59/month | $590/year | Unlimited API calls | Unlimited | 3,000 OAuth connections | Enabled in public plan data | Email plus priority support | Custom limits or enterprise features require contact; plan details may change |
The API To MCP pricing FAQ says paid plans can be billed monthly or yearly, with yearly billing discounted by up to 17%, and that new tool calls are blocked after a quota is reached until the next billing cycle or an upgrade. Its contact page says support messages are reviewed on business days; a response-time SLA is Not publicly confirmed. 0mcp offers a 14-day free trial with 5,000 requests, no credit card requirement, Starter-level limits, and no automatic charge at trial end. Quota behavior, cancellation, and refund terms should be checked before purchase because the two billing models are not identical.
Feature comparison table
| MCP-relevant feature | 0mcp | API To MCP |
|---|---|---|
| Swagger/OpenAPI input | Confirmed: Swagger 2.0 and OpenAPI 3.0/3.1. | Not publicly confirmed as an importer. |
| Postman input | Confirmed. | Not publicly confirmed. |
| REST/GraphQL builder | API-definition workflow; GraphQL is not current 0mcp positioning. | Confirmed REST and GraphQL configuration. |
| API-to-MCP generation | Confirmed. | Confirmed. |
| Visual no-code builder | Dashboard workflow. | Confirmed visual builder. |
| AI-assisted creation | Not publicly confirmed as a public manager API/agent builder. | Confirmed manager MCP and agent-driven create/update/test/deploy flow. |
| MCP tools | Confirmed. | Confirmed API tools and workflow tools. |
| MCP resources | Confirmed. | Not publicly confirmed in reviewed docs. |
| MCP prompts | Confirmed. | Not publicly confirmed in reviewed docs. |
| Input/output schemas | Imported-schema validation and editable tool descriptions. | JSON Schema, parameter validation, output schemas, and JMESPath. |
| Testing before deployment | Confirmed playground testing. | Confirmed Test & Validate flow and health checks. |
| Hosted runtime | Confirmed managed hosting. | Confirmed hosted cloud runtime. |
| Transport | Streamable HTTP. | Streamable HTTP over JSON-RPC 2.0. |
| Local stdio | Not currently supported. | No local stdio deployment path publicly confirmed. |
| Upstream authentication | API key, Bearer token, OAuth pass-through. | No auth, API key, Bearer, Basic Auth, OAuth Client Credentials, OAuth Authorization Code. |
| MCP access authentication | Pass-through model. | Open, OAuth/Bearer Token, or Client Token. |
| Versioning | Save, review, restore. | Snapshots/templates and version-control language; rollback Not publicly confirmed. |
| Logs and analytics | Confirmed. | Confirmed analytics and request logs. |
| Custom MCP endpoint | Custom subdomain on eligible plans. | Vendor subdomain; custom domain marked in Professional/Business plan data. |
| DNS and SSL | CNAME/TXT verification; automatic HTTPS/SSL. | Automatic SSL; custom-domain DNS details Not publicly confirmed. |
| Formal SLA/compliance | Formal SLA and certifications not currently claimed. | Terms describe a non-guaranteed 99.9% goal; formal SLA/certifications Not publicly confirmed. |
Where 0mcp may be a better fit
0mcp may be a better fit when the team maintains an OpenAPI, Swagger, or Postman contract and wants a direct API-to-MCP workflow. It is also a candidate when the MCP surface needs tools, resources, and prompts; version restoration; or a branded custom subdomain with documented DNS verification and automatic HTTPS/SSL.
Where API To MCP may be a better fit
API To MCP may be a better fit when the source is a REST or GraphQL endpoint to configure manually, when workflow tools and JMESPath output shaping matter, or when each end user should connect an upstream account through OAuth Authorization Code. Its manager MCP suits teams that want an AI client to create and operate servers. Public templates, a free plan, and an unlimited-call Business plan may also matter.
Which platform should you choose?
- Choose 0mcp if you want to create an MCP server from Swagger, OpenAPI, or Postman, keep the API contract as the source of truth, expose tools/resources/prompts, use version restoration, and operate a custom subdomain through a managed hosted layer.
- Choose API To MCP if you need REST or GraphQL configuration, Basic Auth or per-user OAuth, workflow tools, JMESPath mapping, public templates, or an agent-driven builder and manager MCP.
- Consider building in-house if you need full control over runtime code, local stdio or a custom transport, bespoke network placement, self-hosting, custom compliance evidence, or a migration path that neither product publicly documents. Building in-house also means owning protocol implementation, hosting, security, upgrades, observability, and support.
Migration and switching considerations
Before switching, collect the API source definition or base URL, tool inventory, schemas, descriptions, upstream authentication model, OAuth redirect settings, client-access policy, request-volume assumptions, and current MCP client configuration. Never copy live credentials into a migration document; reissue or rotate them in the destination platform.
For a move to 0mcp, the cleanest path is an OpenAPI, Swagger, or Postman source that can be imported and reviewed. For API To MCP, expect to configure the base URL, auth, tools, workflows, schemas, output mapping, and MCP access policy in the builder or manager MCP. An existing custom MCP server or local stdio implementation is not a documented one-click import path for either platform.
Custom-domain changes require a DNS plan. If the hostname changes, AI clients and customer configurations using the old URL may need updates. Ask both vendors whether endpoints can be preserved, OAuth callbacks reused, configurations exported portably, and logs, templates, and credentials deleted after cancellation. API To MCP’s terms say customers retain ownership of MCP configurations and API integrations; a self-hostable runtime export is Not publicly confirmed. 0mcp does not provide a direct migration path from a locally coded MCP server.
Final recommendation
Neither platform is universally better. 0mcp is the more direct fit for SaaS teams whose API definition is the starting point and who want a hosted MCP server with version control, tools/resources/prompts, testing, analytics, and documented custom-subdomain setup. API To MCP is the more flexible fit for teams that want REST or GraphQL configuration, workflow tools, per-user OAuth, JMESPath, or an AI-operated builder.
The deciding questions are practical: What is your source of truth? Do you need GraphQL, Basic Auth, workflow composition, or per-user OAuth? Do you need a customer-facing custom endpoint? How will you handle API changes and quota exhaustion? What export, self-hosting, compliance, and support commitments must be written into procurement?
Start with 0mcp
If your goal is to create and host an MCP server from an existing API specification, start the 0mcp 14-day free trial, import your OpenAPI, Swagger, or Postman source, test the generated capabilities, and connect the hosted endpoint to your MCP-compatible client.