MCP CheckMCP servers for OpenAPI
64 servers from the official MCP Registry that work with OpenAPI. 40 need no API key and 16 can run hosted. Each row shows the security checks, the secrets asked for and an install command.
OpenAPI MCP servers 64
Now showing are unlisted. These entries didn't pass our listing filter: no source repo, a very short or duplicated description, or a publisher with 100+ servers. Same automated checks, shown as-is. How we check
| Type | Secrets | Version | Actions | ||||
|---|---|---|---|---|---|---|---|
| 3/3All passed | 65health of 100 | RemoteHosted | Noneno keys asked | 0.33.0 | |||
★ 30 io.github.webull-inc/webull-openapi-mcp MCP server for Webull OpenAPI: trading and market data access for AI assistants | 7/7All passed | 68health of 100 | PyPIRuns locally | Noneno keys asked | 1.2.6 | ||
★ 22 io.github.openapi/mcp-server Official Openapi® MCP server: Italian company data, PEC, SMS, vehicles, geocoding and more APIs. | 4/4All passed | 46health of 100 | RemoteHosted | Noneno keys asked | 0.3.1 | ||
★ 7 io.github.alphaparkinc/genpark-multi-source-openapi-router-mesh-skill Aggregates multiple OpenAPI specifications into a unified virtual routing mesh with service namespac | 3/41 warning | 47health of 100 | MCPBRuns locally | Noneno keys asked | 1.0.1 | ||
★ 7 io.github.alphaparkinc/genpark-openapi-spec-to-mcp-tool-synthesizer-skill Inspect OpenAPI 3.0 specs and synthesize schema-compliant Model Context Protocol tool declarations w | 3/41 warning | 47health of 100 | MCPBRuns locally | Noneno keys asked | 1.0.1 | ||
★ 6 io.github.tiago-marques/x-openapi-flow-mcp OpenAPI lifecycle guard and MCP sidecar for policy-driven API orchestration. | 7/7All passed | 57health of 100 | npmRuns locally | Noneno keys asked | 1.7.4 | ||
★ 4 io.github.rubatoyd/kci-openapi-mcp KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH | 6/6All passed | 59health of 100 | MCPBRuns locally | 1secret asked | 0.3.6 | ||
★ 4 io.github.rubato103/kci-openapi-mcp KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH | 6/6All passed | 59health of 100 | MCPBRuns locally | 1secret asked | 0.1.3 | ||
★ 4 io.github.Neo1228/swagger-mcp-bridge Spring Boot example that exposes SpringDoc OpenAPI operations as safe MCP tools. | 4/4All passed | 42health of 100 | DockerRuns locally | Noneno keys asked | 0.1.0 | ||
★ 3 io.github.Docat0209/openapi Turn any OpenAPI/Swagger spec into MCP tools. Zero config, zero code. | 7/7All passed | 45health of 100 | npmRuns locally | Noneno keys asked | 0.2.3 | ||
★ 2 io.github.redoxnet/lsopenapi LS Securities OpenAPI MCP server: Korean + overseas stocks, charts, screeners, portfolio, accounts. | 4/4All passed | 51health of 100 | NuGetRuns locally | Noneno keys asked | 1.6.2 | ||
★ 1 io.github.basitalisandhu/mcp-openapi-lint Lint OpenAPI 3.x documents for missing security, responses, descriptions and versioning. | 4/4All passed | 48health of 100 | DockerRuns locally | Noneno keys asked | 0.2.2 | ||
★ 1 io.github.sezzlee/openapi Expose an OpenAPI document to agents as a search-first tool catalog over your existing API. | 7/7All passed | 51health of 100 | npmRuns locally | Noneno keys asked | 1.0.0 | ||
★ 1 io.github.akintomiwa-fisayo/openapi-sync-mcp Type-safe MCP server for OpenAPI Sync to inspect, validate, and synchronize OpenAPI specs. | 7/7All passed | 59health of 100 | npmRuns locally | Noneno keys asked | 6.4.2 | ||
★ 1 io.github.rubatoyd/na-openapi-mcp National Assembly Library of Korea catalog search (books, theses, articles, bills) | 6/6All passed | 55health of 100 | MCPBRuns locally | 1secret asked | 0.1.1 | ||
★ 1 io.github.rubatoyd/nl-openapi-mcp National Library of Korea holdings search - books, online materials, KDC classification | 6/6All passed | 55health of 100 | MCPBRuns locally | 1secret asked | 0.7.0 | ||
★ 1 io.github.SolveaCX/voc-mcp VOC OpenAPI gives AI agents authorized review and product data for insights, tagging, and listings. | 3/3All passed | 47health of 100 | RemoteHosted | Noneno keys asked | 1.0.5 | ||
★ 1 io.github.rubato103/nl-openapi-mcp National Library of Korea Seoji OpenAPI search via REST API and local metadata harvesting | 6/6All passed | 55health of 100 | MCPBRuns locally | 1secret asked | 0.1.0 | ||
★ 1 io.github.mayorandrew/openapi-dynamic Load OpenAPI 2.x/3.x specs and expose generic tools to discover and call multiple APIs. | 7/7All passed | 41health of 100 | npmRuns locally | Noneno keys asked | 0.3.3 | ||
io.github.nhan7777/openapi-swagger-mcp Discover Swagger/OpenAPI operations and call configured dev/UAT APIs through 10 fixed tools. | 7/7All passed | 52health of 100 | npmRuns locally | Noneno keys asked | 0.1.2 | ||
io.github.Asthanaji05/openapi-mcp Turn any OpenAPI 3 spec into a working MCP server. One file, local (stdio) or remote (HTTP). | 7/7All passed | 49health of 100 | npmRuns locally | Noneno keys asked | 0.1.1 | ||
io.github.alyiox/mcp-openapix MCP server that fronts any OpenAPI service: discover operations from its spec and call them | 7/7All passed | 53health of 100 | PyPIRuns locally | Noneno keys asked | 0.2.1 | ||
io.github.rubatoyd/kosis-openapi-mcp Korean official statistics (KOSIS) — tables, metadata and observations | 6/6All passed | 53health of 100 | MCPBRuns locally | 1secret asked | 0.1.0 | ||
| 7/7All passed | 56health of 100 | npmRuns locally | 1secret asked | 0.3.1 | |||
 ★ 19k io.github.keploy/mcp End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic. | 3/3All passed | 87health of 100 | RemoteHosted | Noneno keys asked | 1.0.0 | ||
★ 220 io.github.cafeTechne/antigravity-link MCP server and OpenAPI-backed mobile companion for controlling Antigravity IDE sessions | 7/7All passed | 52health of 100 | npmRuns locally | 1secret asked | 1.0.13 | ||
★ 207 io.github.jgravelle/jdocmunch-mcp Section-level doc search for .md, .rst, .adoc, .ipynb, .html, .yaml, .json, and OpenAPI specs. | 6/71 warning | 70health of 100 | PyPIRuns locally | Noneno keys asked | 1.150.1 | ||
★ 44 com.smartbear/smartbear-mcp MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J. | 8/91 warning | 76health of 100 | npmLocal or hosted | 10secrets asked | 0.42.0 | ||
★ 37 io.github.mguozhen/voc-amazon-reviews-mcp Amazon review intelligence via Shulex OpenAPI. 10 marketplaces, verified-purchase & Vine signals. | 7/7All passed | 48health of 100 | PyPIRuns locally | 2secrets asked | 0.1.1 | ||
★ 22 tech.geckovision/surf Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools. | 7/81 warning | 62health of 100 | PyPILocal or hosted | Noneno keys asked | 0.2.0 | ||
★ 18 io.github.sepehr071/toolsmelt Curated MCP tools from OpenAPI, websites, apps, Postman, cURL or SQL; your agent designs them. | 7/7All passed | 55health of 100 | PyPIRuns locally | Noneno keys asked | 0.8.0 | ||
★ 18 io.github.sepehr071/mcpsmith Curated MCP tools from OpenAPI, websites, apps, Postman, cURL or SQL; your agent designs them. | 7/7All passed | 67health of 100 | PyPIRuns locally | Noneno keys asked | 0.6.0 | ||
★ 13 io.github.cocaxcode/api-testing-mcp MCP server for API testing. 35 tools: HTTP, assertions, flows, OpenAPI, collections. | 7/7All passed | 45health of 100 | npmRuns locally | Noneno keys asked | 0.11.12 | ||
★ 9 ai.com.mcp/petstore Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server | 4/4All passed | 49health of 100 | RemoteHosted | Noneno keys asked | 0.6.0 | ||
★ 7 io.github.nk3750/jitapi Turn any OpenAPI spec into an executable agent interface using graphs and semantic search. | 7/7All passed | 43health of 100 | PyPIRuns locally | 1secret asked | 0.1.1 | ||
★ 5 io.github.nonchan7720/manifold MCP gateway aggregating MCP servers and OpenAPI/Swagger REST APIs behind one MCP endpoint | 4/4All passed | 54health of 100 | DockerRuns locally | 1secret asked | 1.24.1 | ||
★ 5 io.github.mockzilla/mockzilla-mcp Mock OpenAPI specs locally, or log in to deploy hosted mocks on mockzilla.org from your MCP client. | 7/7All passed | 55health of 100 | npmRuns locally | 1secret asked | 0.2.28 | ||
★ 5 io.github.pavelpiha/specrun MCP server that converts OpenAPI specs into tools which can query API endpoints | 4/4All passed | 36health of 100 | npmRuns locally | Noneno keys asked | 1.4.0 | ||
★ 4 io.github.TeodorMCP/universal-connector-mcp Security-first MCP server that connects any OpenAPI, GraphQL, gRPC or SOAP API to AI agents. | 7/7All passed | 44health of 100 | PyPIRuns locally | 1secret asked | 0.2.0 | ||
★ 3 io.github.devinwang/app-store-connect-mcp MCP server for Apple's App Store Connect API: 1316 tools generated from the official OpenAPI spec. | 7/7All passed | 59health of 100 | npmRuns locally | Noneno keys asked | 0.5.0 | ||
 ★ 3 dev.octri/cli Push OpenAPI specs, build SDKs in ten languages, publish API docs, and triage production SDK errors. | 7/7All passed | 53health of 100 | npmRuns locally | 2secrets asked | 1.0.6 | ||
★ 3 io.github.kiransth77/aionmcp Dynamic API tool generator for OpenAPI, GraphQL, and AsyncAPI specifications | 2/2All passed | 38health of 100 | RemoteRuns locally | Noneno keys asked | 0.1.0 | ||
★ 2 io.github.anzar-ahsan-commits/api-shakedown Turn an OpenAPI spec into WireMock stubs, contract tests and chaos scenarios, on local LLMs. | 7/7All passed | 61health of 100 | PyPIRuns locally | 2secrets asked | 0.1.3 | ||
★ 2 io.github.furkan708/mcpify Focused, production-ready CLI: turn any OpenAPI REST API into an MCP server. | 7/7All passed | 59health of 100 | PyPIRuns locally | Noneno keys asked | 1.19.0 | ||
★ 1 ai.kaiv/bridge Turn any OpenAPI/Swagger spec or REST API docs link into a managed MCP server. Free account. | 3/3All passed | 45health of 100 | RemoteHosted | Noneno keys asked | 1.0.4 | ||
★ 1 io.github.thalisantunes/govbr-apis-mcp A catalog-driven gateway over Brazilian government APIs, loading OpenAPI specs on demand. | 7/81 warning | 46health of 100 | PyPIRuns locally | 10secrets asked | 0.2.0 | ||
| 4/4All passed | 45health of 100 | DockerRuns locally | Noneno keys asked | 0.1.13 | |||
★ 1 io.github.krishgok/mcp-api-translator Turn OpenAPI / Postman specs into runnable MCP servers, or serve any API as live MCP tools. | 7/7All passed | 59health of 100 | npmRuns locally | Noneno keys asked | 0.4.1 | ||
★ 1 io.github.ishay60/mcpolyglot Policy-checked, audited agent access to Postgres, MySQL, SQLite, MongoDB and OpenAPI REST APIs. | 7/7All passed | 51health of 100 | npmRuns locally | Noneno keys asked | 0.4.3 | ||
★ 1 io.github.rubatoyd/scienceon-mcp KISTI ScienceON OpenAPI literature search & metadata collection (MCP server + CLI) | 6/6All passed | 55health of 100 | MCPBRuns locally | 2secrets asked | 0.5.1 |
Showing 1 to 50 of 64. These are the most recently updated; search or pick a category for the rest.
OpenAPI MCP servers: what to know before you pick one
What is the best MCP server for OpenAPI?
Among community builds, the most-starred on GitHub are Swagger MCP (★ 44), Webull OpenAPI (★ 30) and Openapi® (★ 22). If you want one that passed every check, Swagger MCP did.
Are OpenAPI MCP servers safe to install?
On registry checks, 56 of 64 come out clean. We also read the code or live tool list of 49 of them without running anything, and 2 raised a warning worth reading, such as an install script or text aimed at the AI. Treat a pass as "nothing found", and give any server the least access that works.
How do I add a OpenAPI MCP server to Claude?
To connect OpenAPI through Swagger MCP, run this in a terminal: claude mcp add --transport http swagger-mcp https://swagger.mcp.smartbear.com/mcp. Pin the version shown before you rely on it.
Do I have to install a OpenAPI MCP server?
16 can run hosted, so you only paste a URL into Claude, Cursor or VS Code. The 52 that run locally ship as 25 npm, 12 PyPI, 9 MCPB bundle, 4 Docker and 1 NuGet packages.
Which OpenAPI MCP servers need no API key?
40 of the 64 list no secrets, including Swagger MCP, Webull OpenAPI and Openapi®. Some still ask you to sign in once they run.
Who makes these OpenAPI MCP servers?
No company-verified one yet (checked 31 Oct 2026). All 64 OpenAPI servers are community builds from 56 different publishers, so check who is behind one before you hand it a OpenAPI key.
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