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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.

36,559 servers 86% of 42,727 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 4,901 to 4,950 of 36,559

Entries
Cronus UIio.github.pedrogbraz/cronus-ui
Crosby, TX Weathercom.crosbynews/weather
Cross + Covenant Bibleco.crossandcovenant/bible
Cross-Chain Bridge Route APIio.github.Br0ski777/bridge-routes
Cross-DEX Prices & Spreadsio.github.donnywin85/arb-dex-mcp
Cross-Origin-Embedder-Policy token, value discardedio.github.sadri-dridi/coep-ok
Cross-Origin-Opener-Policy token, value discardedio.github.sadri-dridi/coop-ok
Cross-Origin-Resource-Policy token, value discardedio.github.sadri-dridi/corp-ok
Cross-Rail Settlement Binderio.github.arnopiva/crs-binder
CrossFinio.github.bubilife1202/crossfin
Crossave import duty & VATio.github.Crossave/crossave-dazi
CrossingKey MCPcom.crossingkeyintelligence/crossingkey-mcp
Crossloadorg.crossload/crossload
Crossplaneio.github.ravibagri5/crossplane-mcp-server
Crossrefio.github.pipeworx-io/crossref
Crossref Scholarly Dataio.github.Taru0208/crossref-mcp-server
Crosswire - payment infrastructure pricing, coverage and stack designcom.crosswirepay/crosswire
Crosswire — Polymarket & Kalshi Arbitragecom.crosswire-api/crosswire-polymarket-kalshi-arbitrage
Crovia — verifiable silence (TACET) and Crovia Sealcom.croviatrust/crovia
Crow Nestcom.crow-nest/mcp
CrowTerminal - External Brain for AI Agentsio.github.WillNigri/crowterminal
CrowdGap AI Probability Researchsite.chatgpt.super-myna-7255.crowdgap-pilot/probability-research
CrowdHumcom.crowdhum/crowdhum
Crowdin MCP by usefulapiio.usefulapi/crowdin
Crowdoccom.crowfoundry/crowdoc
Crown of Silence Inner Circlecom.crownofsilence/inner-circle
Crs Reportsio.github.pipeworx-io/crs-reports
Crtshio.github.pipeworx-io/crtsh
Crubai.crub/mcp
Cruise Itinerarycom.cruise-itinerary/mcp
Cruisifyuk.co.cruisify/cruise-search
Cruncherio.github.islobodan/cruncher-mcp
Cryptoio.github.pipeworx-io/crypto
Crypto Bot Audit + Market Data (x402 paid)io.github.kaminariouji/x402-audit-agent
Crypto Data & Market Analysis Agentio.github.dopionut-jpg/crypto-data-market-analysis
Crypto Feedsio.github.pipeworx-io/crypto-feeds
Crypto Fngio.github.pipeworx-io/crypto-fng
Crypto Market Dataio.github.nirholas/crypto-market-data
Crypto Market Intelligence MCPio.github.FoundryNet/crypto-intel-mcp
Crypto Market Pulsecom.pythonanywhere.cryptopulse/mcp
Crypto Market Pulse & Base USDC Statscom.pythonanywhere.baseusdcearn/mcp
Crypto Markets Deskcom.predictionmarketspicks/crypto
Crypto News Feed APIio.github.Br0ski777/crypto-news
Crypto Price MCPio.github.Lulu-The-Narwhal/crypto-price-mcp
Crypto Pricesio.github.guptaprakhariitr/crypto-prices-mcp
Crypto Prices Mcpio.github.varvararatta/crypto_prices_mcp
Crypto Signals MCPio.github.agenthustler/crypto-signals-mcp
Crypto Tools Registryio.github.nirholas/crypto-tools-registry
CryptoData APIio.github.elevasyncsolutions-jpg/cryptodata-api
CryptoDataAPIcom.cryptodataapi/mcp

All 36,559 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)

36,535
Delivery form (raw)
remote22,960 63 %
package11,801 32 %
package and remote1,277 3.5 %
neither497 1.4 %

not recorded for 24 entries

Execution location

36,559
Execution location
remote23,166 63 %
local13,393 37 %

Repository platform (raw)

36,535
Repository platform (raw)
github25,671 70 %
nothing declared10,786 30 %
gitlab78 0.2 %

not recorded for 24 entries

Repository URL listed

36,559
Repository URL listed
yes25,766 70 %
no10,793 30 %

Icon formats (raw)

36,535
Icon formats (raw)
nothing declared32,746 90 %
image/png2,288 6.3 %
image/png, image/svg+xml819 2.2 %
image/svg+xml604 1.7 %
image/webp40 0.1 %
image/jpeg29 0.1 %

and 6 more values · not recorded for 24 entries

Schema version of the raw record (raw)

36,535
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json34,025 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,289 3.5 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json536 1.5 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json531 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 36,559 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. 36,559 entries at 200 each are 183 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 34,377 entries in this category32,082 shared MCP servers with a repository URL 30,564 entries in this category25,766 shared MCP servers without a declared package registry 25,719 entries in this category23,472 shared Remotely executed MCP servers 25,476 entries in this category23,166 shared MCP servers over streamable-http only 24,232 entries in this category22,042 shared Local MCP servers without declared required secrets 13,393 entries in this category13,393 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=99