MCP.Market

Oathlayer MCP server

online · 100% uptime
by oathlayer·io.github.oathlayer/oathlayer·v1.0.0
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Verify AI outputs against real sources. Returns a trust signal and permanent doc number.

B75/100grade B
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Safety scan
B75/100

full report

Adoption
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0 stars

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Oathlayer tools (1, 1 write)

write = sends, deletes, buys or posts
  • verify_outputwrite actionFree

    Submit a question to Oathlayer for verification. Returns whether the answer is approved, unverified, reflects multiple perspectives, is too complex to verify, or needs clarification. Also returns a permanent doc reference number.

Public scan report

scanner v0.1.9 · 2026-09-25 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 472ms20/20
  • Tool poisoning1 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 66 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Oathlayer compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 45% of 48,255 servers
Tools
1
the typical server has 7
Tools that change things
100%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
66 ms
faster than 90% of 30,031 servers

What its tools let an agent do: 1 change

Install Oathlayer in Claude Code, Cursor or VS Code

claude mcp add --transport http oathlayer https://mcp.oathlayer.com
Add to Cursor

What the publisher says

From the Oathlayer repository's README, as published. We do not edit it. Read it on GitHub

Oathlayer

AI trust infrastructure. Verify AI outputs before anyone acts on them.

Every answer checked against real sources. Every answer documented with a permanent doc number anyone can verify for free.

What it does

  • Checks every AI answer against independent real-world sources
  • Returns a trust signal — Oath Approved, Threshold Not Met, Various Perspectives Apply, or Threshold Reserved
  • Every answer gets a unique permanent doc number
  • Anyone can verify any doc number free at oathlayer.com/verify
  • Works on any AI model

MCP Server

Connect Oathlayer to your AI agents via MCP at https://mcp.oathlayer.com

API

Full API and CLI documentation at https://oathlayer.com/docs

Pricing

From $9 for 500 verifications. Details at https://oathlayer.com

Trust Is Everything

oathlayer.com

Nothing above is checked by us. What we check is on the safety report.

Oathlayer: common questions

Is Oathlayer MCP server safe?
Mostly: it is graded B (75/100). Read the Oathlayer safety report
How do I install Oathlayer?
It runs remotely at mcp.oathlayer.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Oathlayer need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Oathlayer maintained?
The last commit was 106 days ago (2026-07-21). The latest release is v1.0.0.
Is Oathlayer up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Oathlayer?
Servers from other publishers that do the same job: Ouroboros MCP server.
How does Oathlayer compare with other MCP servers?
safety score 75/100 (higher than 45% of 48,255 servers); tools 1 (the typical server has 7); tools that change things 100% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Oathlayer

Same job from other publishers: the closest match first, then the best rated.

  • Ouroboros
    Pins an acceptance spec; the verify command and expected output never enter the success contract.
    C