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 2,351 to 2,400 of 10,062
| RealAgent MCP | io.github.RedDateTech/realagent-mcp |
|---|---|
| Rechtspraak (Dutch Case Law) | io.github.Prudai/rechtspraak-mcp |
| Recipes MCP by UnClick | io.github.malamutemayhem/meal |
| Recite MCP | io.github.rivradev/recite-mcp |
| Recolx MCP | io.github.uzqw/recolx-mcp |
| Recon Crypto MCP | io.github.szhygulin/recon-crypto-mcp |
| RecourseOS | io.github.recourseOS/recourse |
| Red Hat Lightspeed MCP | io.github.RedHatInsights/insights-mcp |
| Redact MCP | io.github.r3352/redact-mcp |
| Reddit (RSS) | io.github.jorgen-k/reddit-mcp |
| Reddit Ads | io.github.camlowe/mcp-server-reddit-ads |
| Reddit Ads MCP | io.github.mkerchenski/reddit-ads-mcp |
| Reddit MCP by UnClick | io.github.malamutemayhem/reddit |
| RedditAPIs | io.github.redditapis/redditapis-mcp |
| Redshift MCP Server | io.github.davidalbertonogueira/redshift-mcp-server |
| Reel Estate MCP | com.tryreelestate/reel-estate-mcp |
| Reelier | io.github.seldonframe/reelier |
| Refactoring MCP Server | io.github.marshally/mcp-refactoring |
| Refinery MCP | io.github.LareLabs/refinery-mcp |
| Regex-LE | io.github.nolindnaidoo/regex-le |
| Regulations.gov | io.github.1102tools/regulations-gov-mcp |
| Regulations.gov | com.1102tools/regulations-gov-mcp |
| Relay | io.github.mhcoen/mcp-relay |
| Relay | io.github.relayprotocol/relay-mcp |
| Relay | io.github.reservoirprotocol/relay-mcp |
| RelayShield Security Intelligence | io.github.nzdsf2-gif/relayshield-mcp |
| Release Intel | io.github.barissozudogru/release-intel |
| Remembra — AI Memory Layer | io.github.remembra-ai/remembra |
| RemembrallMCP | io.github.cdnsteve/remembrallmcp |
| Remogram | io.github.attebury/remogram |
| Remote OpenClaw | io.github.aidevelopers2/remoteopenclaw-mcp |
| Remote Terminal MCP | io.github.TiM00R/remote-terminal |
| Render Unto Caesar | io.github.mightydatainc/ruc-mcp |
| Render Useful MCP | io.github.LuSrodri/render-useful-mcp |
| RenderMark | io.github.jmsaavedra/rendermark |
| Renology Renovation Cost Data | io.github.asafichaki/renology-cost-data |
| Rephrasy | io.github.rephrasyai/rephrasy-mcp |
| ReplenishRadar | io.github.Limited-Horizon/replenishradar |
| ReplenishRadar | io.github.ReplenishRadar/MCP |
| Replit SSH | io.github.mindstone/mcp-server-replit-ssh |
| Repo Memory | io.github.yubinkim444/repo-memory |
| Repo Test Architect | io.github.RepoAssay/repo-test-architect |
| RepoContext | io.github.shmindmaster/repocontext |
| Report Needs MCP Server | io.github.JarvisOnM4/report-needs |
| Repowise | dev.repowise/repowise |
| Research Repo Doctor | io.github.Tom409114/rrdoctor |
| Research Scan | org.synectic/research-scan |
| ResearchTwin | io.github.martinfrasch/researchtwin |
| Resend Email MCP | io.github.helbertparanhos/resend-email-mcp |
| Resource Guru MCP | io.github.Servosity/resourceguru-mcp |
All 10,062 entries in the list, with filters and pagination
tracevero · https://tracevero.com/themen/transport-stdio?seite=48