MCP servers over stdio only
MCP servers whose manifest declares stdio as its only transport. They run as a local process and communicate over standard input and output.
What this excerpt selects
| Transports (raw) | stdio measured directly |
|---|
A derived value carries its raw declaration beside it; the derivation rule is published, with a version, on the methodology page.
What this excerpt does not say
- Transports (raw) is the complete, sorted enumeration of what a manifest declares. So "stdio" means exactly that and nothing else: an entry that also declares something different is not in this excerpt.
- This excerpt shares 10,056 of its 10,062 entries with "MCP servers available as a package only" (10,865). Both are measured from different raw declarations; that they hit almost the same set is a finding, not a rule.
- None of this is verified. This registry fetches no repository URL, no endpoint and no package index. What is measured is what a manifest declares, not what a piece of software does.
Every sentence here follows from the condition above, not from an assessment.
How this excerpt is distributed
Credentials required
10,062| no | 7,654 76 % |
|---|---|
| yes | 2,408 24 % |
Schema version of the raw record (raw)
10,056| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 9,095 90 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 492 4.9 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 317 3.2 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 114 1.1 % |
| https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json | 36 0.4 % |
| https://registry.modelcontextprotocol.io/v0/schema/2025-12-11 | 1 0.0 % |
and 1 more values · not recorded for 6 entries
Repository platform (raw)
10,056| github | 9,608 95 % |
|---|---|
| nothing declared | 437 4.3 % |
| gitlab | 11 0.1 % |
not recorded for 6 entries
Repository URL listed
10,062| yes | 9,625 96 % |
|---|---|
| no | 437 4.3 % |
Icon formats (raw)
10,056| nothing declared | 9,668 96 % |
|---|---|
| image/png | 275 2.7 % |
| image/svg+xml | 81 0.8 % |
| image/png, image/svg+xml | 28 0.3 % |
| image/jpeg | 2 0.0 % |
| image/webp | 2 0.0 % |
not recorded for 6 entries
Path argument present
10,062| no | 9,851 98 % |
|---|---|
| yes | 211 2.1 % |
Per property, the measured values inside this excerpt. The share refers to the 10,062 entries of the excerpt, not to the registry.
The same excerpt through the interface
curl -s "https://api.tracevero.com/v1/eintraege?art=mcp_server&roh_transportarten=stdio&grenze=200"
The command carries exactly the condition of this page. 10,062 entries at 200 each are 51 requests; the total is in the X-Gesamt header.
Changes to these entries
https://tracevero.com/aenderungen.atom?thema=transport-stdio
Both addresses narrow the change stream to exactly the entries in this excerpt. The feed carries an identifier of its own, so a feed reader keeps it apart from the full stream.
Excerpts sharing entries with this one
Per neighbour its own size and the counted number of shared entries. An excerpt without a single shared entry is not listed here.
Entries
Entries 2,951 to 3,000 of 10,062
| U.CASH Pay (merchant MCP) | io.github.uantum/mcp-ucashpay |
|---|---|
| U2 MCP Server | io.github.bpamiri/u2-mcp |
| UCAI | io.github.nirholas/abi-to-mcp |
| UCM — Universal Commerce Marketplace | io.github.ucmai/ucm |
| UI Beats | com.uibeats/mcp |
| UI Design to Code | io.github.Kinglions/ui-design-to-code-mcp |
| UI Registry | io.github.mrityunjay-tiwari/ui-registry-mcp |
| UIAutomator2 MCP Server | io.github.tanbro/uiautomator2-mcp-server |
| UISandbox | io.github.AlexanderKaan/uisandbox |
| UIcockpit | com.uicockpit/mcp |
| UK Break Clause Analyzer | io.github.Ankur-stockheads/rubo-mcp |
| UK Charity Commission for England and Wales | io.github.RobertAlsop/charity-commission |
| UK Companies House | io.github.RobertAlsop/companies-house |
| UK Environment Agency Open Data | io.github.RobertAlsop/environment-agency |
| UK FCA Financial Services Register | io.github.RobertAlsop/fca-register |
| UK Supermarkets | io.github.jbeshir/supermarkets-uk-mcp |
| UML Forge | io.github.dave1362/umlforge |
| UNICEF Stats MCP | io.github.jpazvd/unicefstats-mcp |
| URLs-LE | io.github.nolindnaidoo/urls-le |
| US Government Data | io.github.malonestar/gov-data-mcp |
| US Macro | io.github.hgus107/us-macro-mcp |
| USASpending.gov | io.github.1102tools/usaspending-gov-mcp |
| USASpending.gov | com.1102tools/usaspending-gov-mcp |
| USGS Earthquakes MCP by UnClick | io.github.malamutemayhem/usgs |
| USGS Water Services MCP Server | io.github.mansurjisan/usgs-mcp |
| USRCP — User Context Protocol | io.github.frank-bot07/usrcp |
| Uindow | io.github.uindow/uindow |
| Uipath | io.github.asklokesh/uipath-mcp-server |
| Ukrainian Language Reference (vitalinguist) | io.github.vitalinguist/ukr-vitalinguist-mcp |
| Umami Compass | io.github.webcredo/umami-compass |
| Umbra | io.github.elberacasa/umbra |
| Umbra open SAR archive | io.github.reesehammer/umbra-mcp |
| Un-Default | io.github.NomadBuilder/un-default |
| UnClick | io.github.malamutemayhem/unclick-mcp-server |
| UnCorreoTemporal | io.github.francofuji/uncorreotemporal-mcp-server |
| Understand Anything - MCP | io.github.uamcp/ua-mcp |
| UniFi Access MCP | io.github.sirkirby/unifi-access-mcp |
| UniFi MCP | io.github.Servosity/unifi-network-mcp |
| UniFi Network MCP | io.github.sirkirby/unifi-network-mcp |
| UniFi Protect MCP | io.github.sirkirby/unifi-protect-mcp |
| UniFi RMCP | ai.dinglebear/runifi |
| UniFi RMCP | ai.dinglebear/unifi-rmcp |
| UniProt MCP | io.github.josefdc/uniprot-mcp |
| Unified AI System MCP Gateway | io.github.happy520ai/unified-ai-system |
| Unitrends Backup | io.github.wyre-technology/unitrends-mcp |
| Unitrends Backup | io.github.WYRE-AI/unitrends-mcp |
| Unity API Documentation | io.github.Codeturion/unity-api-mcp |
| Unity MCP Server | io.github.rachitkumarrastogi/unity-mcp-server |
| Universal Brute Workpack | io.github.haoyun18881-beep/universal-brute-workpack |
| Universal Screenshot MCP | io.github.sethbang/screenshot-server |
All 10,062 entries in the list, with filters and pagination
tracevero · https://tracevero.com/themen/transport-stdio?seite=60