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 2,001 to 2,050 of 10,062
| OpenClaw Agent Instruction Registry | io.github.izworskic/openclaw-registry |
|---|---|
| OpenClaw Consensus | io.github.MICONNM/openclaw-consensus-mcp |
| OpenF1 MCP by UnClick | io.github.malamutemayhem/openf1 |
| OpenFate Bazi MCP | io.github.openfate-ai/bazi-mcp |
| OpenFateAI Assistant MCP | io.github.openfateaicom-wq/openfateai-mcp |
| OpenGraph.io MCP Server | io.github.securecoders/opengraph-io-mcp |
| OpenGrok MCP Server | io.github.IcyHot09/opengrok |
| OpenGrok MCP Server | io.github.IcyHot09/opengrok-mcp-server |
| OpenHCS | io.github.OpenHCSDev/openhcs |
| OpenHire · 哨兵 | io.github.gzchenhao/openhire |
| OpenImageDebugger MCP | io.github.OpenImageDebugger/oid-mcp |
| OpenOCD Debugger | io.github.microhenrio/openocd-mcp |
| OpenOSINT | io.github.OpenOSINT/openosint |
| OpenOSINT | io.github.SonoTommy/openosint |
| OpenPitch | io.github.Avierovich/openpitch |
| OpenProject | io.github.alex13slem/openproject |
| OpenProject | io.github.kar-thik/openproject-mcp-server |
| OpenPulsechain Analytics | io.github.openpulsechain/analytics |
| OpenResearch MCP | io.github.olanokhin/openresearch-mcp |
| OpenRouter | io.github.tsilva/mcp-openrouter |
| OpenSCAD | io.github.fboldo/openscad-mcp-server |
| OpenSTAAD MCP Server | io.github.BentleySystems/openstaad-mcp |
| OpenTakeoff | io.github.Kentucky-ai/opentakeoff |
| OpenTrain | io.github.OpenTrain-AI/opentrain |
| OpenVibeCoding Read-only MCP | io.github.xiaojiou176-open/openvibecoding-readonly |
| Operations Pulse | org.openlyuseful/operations-pulse |
| Opik MCP Server | io.github.comet-ml/opik-mcp |
| Opportunity MCP | io.github.revolutionarybukhari/opportunity-mcp |
| OpsConduit Jobber MCP | io.github.opsconduit/jobber-mcp |
| Optibot | ai.getoptimal/optibot |
| Optical Context MCP | io.github.ChrBoebel/optical-context-mcp |
| OpusClip | io.github.mindstone/mcp-server-opus-video-clip |
| Opzyai Security Check | com.opzyai/mcp |
| Oraclarr | io.github.bdog720/oraclarr |
| Oraclebone | io.github.sapuyou45-bit/oraclebone |
| OrangePro | ai.orangepro/mcp |
| OrangePro | io.github.OrangeproAI/orangepro |
| Orbis API Marketplace | io.github.OrbisAPI/orbis-mcp |
| Orbit | io.github.justinwilliames/orbit-for-claude |
| Orbit | io.github.justinwilliames/braze-lifecycle-mcp |
| Orbit | io.github.justinwilliames/orbit-lifecycle-mcp |
| Orbit Sentinel — Space Regulatory Filings | io.github.Viventine-Space/orbit-sentinel-mcp |
| Orca MCP Server | io.github.jascal/orca-mcp-server |
| OrcaRouter | io.github.Continuum-AI-Corp/orcarouter-mcp |
| OrchestrUI | io.github.ECD5A/orchestrui |
| Orphograph | io.github.Orphograph/orphograph |
| Oura Ring | io.github.YasuakiOmokawa/oura-mcp |
| Ouroboros | io.github.Q00/ouroboros |
| Outline MCP Server | io.github.Vortiago/mcp-outline |
| Outlook MCP | io.github.mpalermiti/outlook-mcp |
All 10,062 entries in the list, with filters and pagination
tracevero · https://tracevero.com/themen/transport-stdio?seite=41