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MCP servers without declared required secrets

MCP servers for which the registry lists neither an environment variable nor a header marked secret and required. Measured from the raw manifest values.

35,800 servers 86% of 41,867 in the directory

This category in numbers

The most frequent value per property, counted across the entries of this category. The full distribution is further down.

Entries

Filter further

Entries 31,101 to 31,150 of 35,800

Entries
dummyjson-mcp in namespace io.githubio.github.mrfentmen/dummyjson-mcp
duolingo-mcp in namespace io.githubio.github.mrfentmen/duolingo-mcp
dwarffortress-mcp in namespace io.githubio.github.mrfentmen/dwarffortress-mcp
ebi-search-mcp in namespace io.githubio.github.mrfentmen/ebi-search-mcp
eccc-mcp in namespace io.githubio.github.mrfentmen/eccc-mcp
ecobee-mcp in namespace io.githubio.github.mrfentmen/ecobee-mcp
edgar-mcp in namespace io.githubio.github.mrfentmen/edgar-mcp
electricitymap-mcp in namespace io.githubio.github.mrfentmen/electricitymap-mcp
email-validator-mcp in namespace io.githubio.github.mrfentmen/email-validator-mcp
emby-mcp in namespace io.githubio.github.mrfentmen/emby-mcp
emoji-mcp in namespace io.githubio.github.mrfentmen/emoji-mcp
endoflife-mcp in namespace io.githubio.github.mrfentmen/endoflife-mcp
energinet-mcp in namespace io.githubio.github.mrfentmen/energinet-mcp
enrico-mcp in namespace io.githubio.github.mrfentmen/enrico-mcp
ensembl-mcp in namespace io.githubio.github.mrfentmen/ensembl-mcp
ensideas-mcp in namespace io.githubio.github.mrfentmen/ensideas-mcp
entur-mcp in namespace io.githubio.github.mrfentmen/entur-mcp
env-contract-mcp in namespace io.githubio.github.mrfentmen/env-contract-mcp
envirocar-mcp in namespace io.githubio.github.mrfentmen/envirocar-mcp
eol-mcp in namespace io.githubio.github.mrfentmen/eol-mcp
epa-frs-mcp in namespace io.githubio.github.mrfentmen/epa-frs-mcp
epic-free-games-mcp in namespace io.githubio.github.mrfentmen/epic-free-games-mcp
episodate-mcp in namespace io.githubio.github.mrfentmen/episodate-mcp
er-api-mcp in namespace io.githubio.github.mrfentmen/er-api-mcp
esm-mcp in namespace io.githubio.github.mrfentmen/esm-mcp
esplora-mcp in namespace io.githubio.github.mrfentmen/esplora-mcp
espn-core-mcp in namespace io.githubio.github.mrfentmen/espn-core-mcp
ethplorer-mcp in namespace io.githubio.github.mrfentmen/ethplorer-mcp
etsy-mcp in namespace io.githubio.github.mrfentmen/etsy-mcp
europepmc-mcp in namespace io.githubio.github.mrfentmen/europepmc-mcp
eurostat-mcp in namespace io.githubio.github.mrfentmen/eurostat-mcp
evidence-diff-mcp in namespace io.githubio.github.mrfentmen/evidence-diff-mcp
excel-mcp in namespace io.githubio.github.mrfentmen/excel-mcp
exoplanets-mcp in namespace io.githubio.github.mrfentmen/exoplanets-mcp
f-droid-mcp in namespace io.githubio.github.mrfentmen/f-droid-mcp
faceit-mcp in namespace io.githubio.github.mrfentmen/faceit-mcp
fakestoreapi-mcp in namespace io.githubio.github.mrfentmen/fakestoreapi-mcp
fauna-mcp in namespace io.githubio.github.mrfentmen/fauna-mcp
fbi-wanted-mcp in namespace io.githubio.github.mrfentmen/fbi-wanted-mcp
fcc-mcp in namespace io.githubio.github.mrfentmen/fcc-mcp
fdic-mcp in namespace io.githubio.github.mrfentmen/fdic-mcp
fear-greed-mcp in namespace io.githubio.github.mrfentmen/fear-greed-mcp
fec-mcp in namespace io.githubio.github.mrfentmen/fec-mcp
federal-register-mcp in namespace io.githubio.github.mrfentmen/federal-register-mcp
fema-mcp in namespace io.githubio.github.mrfentmen/fema-mcp
fendi-mcp in namespace io.githubio.github.mrfentmen/fendi-mcp
figshare-mcp in namespace io.githubio.github.mrfentmen/figshare-mcp
filerun-mcp in namespace io.githubio.github.mrfentmen/filerun-mcp
finalspace-mcp in namespace io.githubio.github.mrfentmen/finalspace-mcp
financial-data-mcp in namespace io.githubio.github.mrfentmen/financial-data-mcp

All 35,800 entries in the list, with filters and pagination

What this category selects

What this category selects
Required secrets declaredno
derived from: Required secret variables (raw)

A derived value carries its original data beside it; the derivation rule is published, with a version, on the methodology page.

Caveats, distribution and query

What this category does not say

  • Required secrets declared is not declared but computed: from Required secret variables (raw), Required secret headers (raw). The rule is published, with a version, on the methodology page.

What is measured is what a manifest declares, not what a piece of software does. This registry fetches no repository URL, no endpoint and no package index; nothing here is verified. Which value comes from which source, and by which rule it was formed, is set out in the Methodology.

Every sentence here follows from the condition above, not from an assessment.

How this category is distributed

Delivery form (raw)

35,776
Delivery form (raw)
remote22,357 62 %
package11,662 33 %
package and remote1,266 3.5 %
neither491 1.4 %

not recorded for 24 entries

Execution location

35,800
Execution location
remote22,562 63 %
local13,238 37 %

Repository platform (raw)

35,776
Repository platform (raw)
github25,284 71 %
nothing declared10,429 29 %
gitlab63 0.2 %

not recorded for 24 entries

Repository URL listed

35,800
Repository URL listed
yes25,364 71 %
no10,436 29 %

Icon formats (raw)

35,776
Icon formats (raw)
nothing declared32,278 90 %
image/png2,159 6.0 %
image/png, image/svg+xml691 1.9 %
image/svg+xml581 1.6 %
image/jpeg29 0.1 %
image/webp29 0.1 %

and 6 more values · not recorded for 24 entries

Schema version of the raw record (raw)

35,776
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json33,284 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,279 3.6 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json532 1.5 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json527 1.5 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json145 0.4 %
https://static.modelcontextprotocol.org/schemas/2025-12-11/server.schema.json3 0.0 %

and 5 more values · not recorded for 24 entries

Per property, the measured values inside this category. The share refers to the 35,800 entries of the category, not to the registry. Shown are 6 of 7 properties: those whose values spread the most inside this category.

The same category through the interface

curl -s "https://api.tracevero.com/v1/eintraege?art=mcp_server&zugangsdaten_erforderlich=false&grenze=200"

The command carries exactly the condition of this page. 35,800 entries at 200 each are 179 requests; the total is in the X-Gesamt header.

Changes to these entries

https://tracevero.com/aenderungen.atom?thema=ohne-zugangsdaten

Both addresses narrow the change stream to exactly the entries in this category. The feed carries an identifier of its own, so a feed reader keeps it apart from the full stream.

Categories sharing entries with this one

MCP servers without declared environment variables 33,621 entries in this category31,385 shared MCP servers with a repository URL 30,107 entries in this category25,364 shared MCP servers without a declared package registry 25,051 entries in this category22,863 shared Remotely executed MCP servers 24,811 entries in this category22,562 shared MCP servers over streamable-http only 23,554 entries in this category21,425 shared Local MCP servers without declared required secrets 13,238 entries in this category13,238 shared

Per neighbour its own size and the counted number of shared entries. A category without a single shared entry is not listed here.

tracevero · https://tracevero.com/themen/ohne-zugangsdaten?seite=623