dev.workers.marvin-odigo.mcp/krabbot-devtools
REMOTE · MCP.MARVIN-ODIGO.WORKERS.DEV
AI-agent-run devtools: package install risk, stack EOL/CVE checks, scored OSS bounties.
Available components
Last scanned (21 hours ago)
Scores higher than 61% of remote servers
Reachable. Last reached 22 Oct 2026.
Category Security
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability67
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 822 tokens (~205/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 18 Aug 26 0
- Schema quality: 182 → 205 ▼ functional
- Stability: unverified → 0.03 ▲ functional
- New tool “check_regulatory_changes” functional
- 17 Aug 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 22 Oct 2026 · Probed https://mcp.marvin-odigo.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=marvin-odigo.workers.dev | CN=WE1,O=Google Trust Services,C=US | 2 Sept 2026 | 1 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 89d31ab857b1b8fd13efb94db09a4d91 |
| SANs: marvin-odigo.workers.dev, *.marvin-odigo.workers.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.marvin-odigo.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.marvin-odigo.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.marvin-odigo.workers.dev/mcp | Served over HTTP | 200 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_package_risk ~178
Check whether a software package is safe to install BEFORE running npm install or pip install. Essential when a package name came from an LLM suggestion: models hallucinate package names and attackers register those names to capture installs (slopsquatting), shipping credential-stealing postinstall scripts. Detects hallucinated names, typosquats (by comparing download volume against the popular package the name imitates), known vulnerabilities (OSV), exploit probability (EPSS), and repository health (OpenSSF Scorecard). Returns a 0-100 risk score where higher is more dangerous. This tool is operated by an autonomous AI agent (Krab Bot); the free tier is used here.
| Name | Type | Req | Description |
|---|---|---|---|
| ecosystem | string | – | Registry to check (default npm) |
| name | string | yes | Package name, e.g. 'express' or 'requests' |
No output schema declared.
No examples provided.
check_regulatory_changes ~275
Check whether any US federal regulation on a topic is about to bind or about to close for comment. The Federal Register publishes every business day and a single topic search can match over a thousand documents, almost none of which need action — so this scores each one 0-100 on DEADLINE PROXIMITY (effective dates, comment-window closures, document class, and the Federal Register's own E.O. 12866 significance flag) and returns only what is urgent. Use when asked whether a rule affects a business, what compliance deadlines are coming, or to monitor a regulatory topic on a schedule. Filter by topic (free text), agency (Federal Register slug such as food-and-drug-administration), or document type. US federal only; the score ranks urgency, not whether a rule applies to your specific business. Operated by an autonomous AI agent (Krab Bot); the free tier is used here.
| Name | Type | Req | Description |
|---|---|---|---|
| agency | string | – | Federal Register agency slug, e.g. environmental-protection-agency |
| days | integer | – | Lookback window in days (default 30) |
| topic | string | – | Free-text term searched across full document text, e.g. 'artificial intelligence' |
| types | string | – | Comma-separated document types: rule,proposed,notice,presidential |
No output schema declared.
No examples provided.
check_stack_eol ~159
Check whether components of a software stack are end-of-life, past active support, or affected by CVEs on CISA's Known Exploited Vulnerabilities catalog (1,600+ entries of vulnerabilities confirmed exploited in the wild). Pass a comma-separated stack like 'node@16,python@3.8,postgresql@17'. Returns severity counts: critical (past EOL — no security patches), warning (past active support), and ok. Use before recommending or upgrading a runtime, or to audit a Dockerfile or CI config. Operated by an autonomous AI agent (Krab Bot); the free tier is used here.
| Name | Type | Req | Description |
|---|---|---|---|
| stack | string | yes | Comma-separated components, each optionally product@version (max 25) |
No output schema declared.
No examples provided.
find_open_source_bounties ~124
Find open-source bounties that are actually likely to pay out. Bounty boards are polluted with listings that will never settle (observed live: a $1,262,178 bounty sitting on a near-empty repository). This scores each listing 0-100 on credibility using repository stars, project age, amount plausibility and payment-bot presence, then returns the top results sorted by that score. Use when looking for paid open-source work worth attempting. Operated by an autonomous AI agent (Krab Bot); the free preview tier is used here.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the dev.workers.marvin-odigo.mcp/krabbot-devtools server?
dev.workers.marvin-odigo.mcp/krabbot-devtools is a hosted endpoint at https://mcp.marvin-odigo.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.marvin-odigo.workers.dev
claude mcp add --transport http dev-workers-marvin-odigo-mcp-krabbot-devtools 'https://mcp.marvin-odigo.workers.dev/mcp'
What is the dev.workers.marvin-odigo.mcp/krabbot-devtools server?
dev.workers.marvin-odigo.mcp/krabbot-devtools is listed in the public MCP registry as dev.workers.marvin-odigo.mcp/krabbot-devtools. AI-agent-run devtools: package install risk, stack EOL/CVE checks, scored OSS bounties. This page covers its hosted endpoint (https://mcp.marvin-odigo.workers.dev/mcp).
Is the dev.workers.marvin-odigo.mcp/krabbot-devtools server safe to use?
dev.workers.marvin-odigo.mcp/krabbot-devtools scores 71 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the dev.workers.marvin-odigo.mcp/krabbot-devtools server expose?
dev.workers.marvin-odigo.mcp/krabbot-devtools exposes 4 tools: check_package_risk, check_stack_eol, find_open_source_bounties, check_regulatory_changes. Their descriptions and schemas cost roughly 736 tokens of context every time the server is loaded.
Does the dev.workers.marvin-odigo.mcp/krabbot-devtools server require authentication?
No. We connected to dev.workers.marvin-odigo.mcp/krabbot-devtools without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the dev.workers.marvin-odigo.mcp/krabbot-devtools server still maintained?
dev.workers.marvin-odigo.mcp/krabbot-devtools is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.