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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.

36,126 servers 86% of 42,239 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 15,651 to 15,700 of 36,126

Entries
Prwebio.github.pipeworx-io/prweb
Pryxio.github.KilianPA/pryx
Pryzm Memorycom.pryzm-memory/memory
Przetargowy Janusz — Polish public tenderspl.przetargowyjanusz/tenders
Précis Finance MCPio.github.precis-finance/precis-finance-mcp
Pseudolife Memoryio.github.Pseudogiant-xr/pseudolife-mcp
Pub Devio.github.pipeworx-io/pub-dev
PubFi MCPai.pubfi/mcp
PubLedgeio.github.snapsynapse/publedge
PubMed / MEDLINE Literature Searchcom.olyport/pubmed
PubMed Biomedical Papers — new research articles ($0.01/query)com.a2awire/data-pubmed-biomedical-paper-research-article
PubMed Clinical Researchio.github.Taru0208/pubmed-mcp-server
PubMed id shape, value discardedio.github.sadri-dridi/pmid-ok
PubNub MCP Serverio.github.pubnub/mcp-server
PubSec Radario.github.Kabrawala/pubsec-sales-mcp
PubShipio.github.pubship/pubship
Pubbleio.pubble/pubble
Pubchemio.github.pipeworx-io/pubchem
Public Adjusters Directoryfyi.publicadjusters/publicadjusters
Public Board — Anonymous Message Board for AI Agentsio.github.mq1n/field-notes-mcp
Public Browserio.github.Silbercue/public-browser
Public Data Catalogio.github.yhay81/public-data-catalog
Public Data Ukraine Mcpio.github.varvararatta/public_data_ukraine_mcp
Public Folderone.asel.agents/public-folder
Public Healthio.github.martc03/public-health
Public Health Watch MCPnet.nexlab/public-health-watch
Public Holidayscom.invokera/public-holidays
Public Holidays Mcpio.github.varvararatta/public_holidays_mcp
Public Official Asset Disclosure (공직자 재산공개)io.github.yujiseok/public-official-mcp-server
Public Suffix Listio.github.pipeworx-io/public-suffix-list
Public Tenders (EU TED)io.github.kiskecske24/public-tenders
Public suffix countio.github.sadri-dridi/public-suffix
PublicData Oraclecom.publicdataoracle/api
PublicSafetyBidcom.checkmycontractorquote/public-safety-bid
PublicWWWcom.publicwww/publicwww
Publish.funfun.publish/mcp
Publoracom.publora/mcp-server
Pubmedio.github.pipeworx-io/pubmed
Pubtatorio.github.pipeworx-io/pubtator
Puenteoio.github.mano7onam/puenteo
Puerto Rico Codeio.github.pipeworx-io/puerto-rico-code
Pulgaca.pulga/marketplace
PullPush Redditio.github.jacklenzotti/pullpush-mcp
Pulltraderapp.pulltrader/seller-economics
Pullzipio.github.work517/archiveflow
Pulsai — Garmin for any AIme.pulsai/garmin
Pulsarlive.pulsarsignal/pulsar
Pulsestudio.pulsecircle/pulse
Pulse Analytics MCP servernet.ciphera/pulse-analytics
Pulse Verityio.github.pipeworx-io/pulse-verity

All 36,126 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)

36,102
Delivery form (raw)
remote22,617 63 %
package11,719 32 %
package and remote1,272 3.5 %
neither494 1.4 %

not recorded for 24 entries

Execution location

36,126
Execution location
remote22,823 63 %
local13,303 37 %

Repository platform (raw)

36,102
Repository platform (raw)
github25,446 70 %
nothing declared10,578 29 %
gitlab78 0.2 %

not recorded for 24 entries

Repository URL listed

36,126
Repository URL listed
yes25,541 71 %
no10,585 29 %

Icon formats (raw)

36,102
Icon formats (raw)
nothing declared32,486 90 %
image/png2,216 6.1 %
image/png, image/svg+xml728 2.0 %
image/svg+xml594 1.6 %
image/webp40 0.1 %
image/jpeg29 0.1 %

and 6 more values · not recorded for 24 entries

Schema version of the raw record (raw)

36,102
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json33,604 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,282 3.5 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json535 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 36,126 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. 36,126 entries at 200 each are 181 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 33,944 entries in this category31,685 shared MCP servers with a repository URL 30,309 entries in this category25,541 shared MCP servers without a declared package registry 25,337 entries in this category23,126 shared Remotely executed MCP servers 25,096 entries in this category22,823 shared MCP servers over streamable-http only 23,859 entries in this category21,706 shared Local MCP servers without declared required secrets 13,303 entries in this category13,303 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=314