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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 16,251 to 16,300 of 36,126

Entries
Refactoring MCP Serverio.github.marshally/mcp-refactoring
Referoio.github.referodesign/refero
Referral Flooringcom.referralflooring/business-card
Referral Handoff Readerio.github.Wxt-ai/referral-handoff-reader
Referral Handoff Readerio.github.Wxt-ai/referral-handoff-packet-complete
Referral Handoff Readerio.github.Wxt-ai/referral-handoff-packet-identifier
Referral Packet Deskio.github.Wxt-ai/referral-packet-desk
Referral Packet Deskio.github.Wxt-ai/referral-handoff-packet-workbench
Referrer-Policy token, value discardedio.github.sadri-dridi/referrer-ok
Refine Job Searchco.getrefine/refine
Reflectodev.reflecto/reflecto
Refproio.github.rickytrinidad/refpro-mcp
Refresh seconds;url shape, value discardedio.github.sadri-dridi/refresh-ok
Refseecom.refsee/refsee
Refugio San Bernardocom.sanbernardorefugio/refugio-san-bernardo
RegAI Legal MCP (Taiwan)tw.regai/legal
RegAffairs AIcom.regaffairsai/regaffairs
RegEvidenceHub CQCio.github.ChanghuLiu/cqc-provider-regulatory-decision-layer
RegEvidenceHub CableCertio.github.ChanghuLiu/cablecert-qa
RegEvidenceHub Premisesio.github.ChanghuLiu/uk-premises-licence-mcp
RegEvidenceHub Sponsorio.github.ChanghuLiu/england-works-watch
RegEvidenceHub Taxiio.github.ChanghuLiu/uk-taxi-phv-regulatory-decision-layer
RegEvidenceHub Wasteio.github.ChanghuLiu/uk-waste-rule-mcp
RegLayer Instant Decision Briefsai.reglayer/instant-decision-briefs
RegSentry Website Tracking Inspectorcom.regsentry/tracking-inspector
Regex Explainercom.gumballtools/regex-explainer
Regex Labio.github.basitalisandhu/mcp-regex-lab
Regex Safety Auditio.github.tylerscomic-lab/regex-safety-audit-mcp
Regex Tester APIio.github.Br0ski777/regex-generator
Regex compile check, pattern discardedio.github.sadri-dridi/regex-ok
Regex-LEio.github.nolindnaidoo/regex-le
Regex/Email/URL Validatorcom.apished/regex-email-url-validator
RegexForgeio.github.walkojas-boop/regexforge
RegiaBI chartscom.regiabi/chart-mcp
Regimexyz.regimetoken/regime
RegimeShiftxyz.regimeshift/mcp
Reginfoio.github.pipeworx-io/reginfo
Regiobrett – Angebote in der Ostschweizio.github.Witzelfitz/regiobrett
Region Fetchdev.regionfetch/mcp
Regional Rollout Plannerio.github.Wxt-ai/regional-rollout-planner
Regional Rollout Plannerio.github.Wxt-ai/rollout-region-complete
Regional Rollout Plannerio.github.Wxt-ai/rollout-region-identifier
Register tons to cubic meters, number discardedio.github.sadri-dridi/register-t
Register.gygy.register/domains
Registercheckde.registercheck/registercheck
Registradores (ARISP) Certidão: Download de Certidão Digitalio.github.mcp-dir/registradores_certid_download-mcp
Registradores (ARISP) Certidão: Download de Reciboio.github.mcp-dir/registradores_certid_recibo-mcp
Registradores (ARISP) Certidão: Novo Pedido de Certidão Digitalio.github.mcp-dir/registradores_certid_pedido-mcp
Registradores (ARISP) Matrícula: Download de Matrículaio.github.mcp-dir/registradores_matric_download-mcp
Registradores (ARISP) Matrícula: Download de Reciboio.github.mcp-dir/registradores_matric_recibo-mcp

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=326