Coinslot — the vending machine for machines

REMOTE · COINSLOT.DEV · SCANNED AUG 9

13 micro-tools for agents: read pages, verify email, convert, validate, diff, extract. AI-operated.

Available components

56 56 Trust /100

Trust breakdown (6 categories)

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 →

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 13 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 not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
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 Usability71

AI-judged instruction clarity (good).Pass
Tool/resource definitions use about 1333 tokens (~102/item across 13 items; 13 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management10

Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage86

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
57% of tool parameters carry a description.Partial

Capabilities60

Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · coinslot.dev

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add --transport http dev-coinslot-coinslot https://coinslot.dev/mcp

# ~/.codex/config.toml

[mcp_servers.dev-coinslot-coinslot]
url = "https://coinslot.dev/mcp"

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-coinslot-coinslot": {
      "type": "remote",
      "url": "https://coinslot.dev/mcp",
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add dev-coinslot-coinslot --url https://coinslot.dev/mcp --transport streamable-http

# ~/.hermes/config.yaml

mcp_servers:
  dev-coinslot-coinslot:
    url: "https://coinslot.dev/mcp"

// mcp.json

{
  "mcpServers": {
    "dev-coinslot-coinslot": {
      "type": "http",
      "url": "https://coinslot.dev/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

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.

9 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
7 Aug 26 +1
- Stability: unverified → 0.03 ▲ functional
6 Aug 26 54

First indexed and scored.

Show 2 earlier entries Hide earlier entries

Diagnostics

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 9 Aug 2026 · Probed https://coinslot.dev/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject	Issuer	Valid from	Valid until	Key	Signature	Serial
CN=coinslot.dev	CN=WE1,O=Google Trust Services,C=US	6 Aug 2026	4 Nov 2026	ECDSA 256	ECDSA-SHA256	17b77218b31b5ce1302cd7adbb49845
SANs: coinslot.dev, www.coinslot.dev, *.www.coinslot.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

DNSSEC insecure

Validation of coinslot.dev. — Not signed

Zone	DS	Keys	Algorithms	Outcome
.	trust_anchor	20326, 38696	8, 8	Verified
dev.	present	60074	8	Verified
coinslot.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

Transports 2 probes

Transport	URL	Outcome	Status	Location
streamable-http	https://coinslot.dev/mcp	Verified	200
http (plaintext)	http://coinslot.dev/mcp	Inconclusive	405

MCP tools · 13 exposed · ~1,246 tokens

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.

Tool Tokens

convert JSON ↔ CSV ~95

Convert an array of JSON objects to CSV (nested keys become dot-path columns) or CSV back to JSON. POST { direction: 'json-to-csv'|'csv-to-json', data }. Price: $0.002/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
data	–	yes	Array of objects (json-to-csv) or CSV string (csv-to-json)
direction	string	yes	–

No output schema declared.

No examples provided.

cron Cron Decode ~92

Parse a 5-field cron expression: get a plain-English explanation and the next N run times (UTC). POST { expression, count?, from? }. Price: $0.002/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
count	integer	–	–
expression	string	yes	5-field cron or @alias
from	string	–	ISO date to project from

No output schema declared.

No examples provided.

diff Text Diff ~90

Line-based diff of two texts. Returns unified diff plus structured changes (added/removed/unchanged counts and hunks). POST { a, b, context? } (max 200KB each). Price: $0.002/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
a	string	yes	–
b	string	yes	–
context	integer	–	–

No output schema declared.

No examples provided.

email_verify Email Verify ~82

Check an email address: RFC syntax, live MX records via DNS-over-HTTPS, and disposable-domain screening. POST { email } or { emails: [...] } (max 20). Price: $0.003/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
email	string	–	Single address
emails	array	–	–

No output schema declared.

No examples provided.

extract Extract Pack ~81

Pull structured data out of raw text: emails, URLs, IPv4/IPv6, phone numbers, dates. Deduplicated with counts. POST { text } (max 500KB). Price: $0.003/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
text	string	yes	Raw text, max 500KB

No output schema declared.

No examples provided.

feed_to_json Feed → JSON ~99

Parse an RSS 2.0 or Atom feed into clean JSON: title, items with link/date/summary, HTML stripped. POST { xml } (max 1MB) or { url } to fetch. Price: $0.004/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
url	string	–	Feed URL to fetch instead
xml	string	–	Feed XML, max 1MB

No output schema declared.

No examples provided.

html_to_markdown HTML → Markdown ~87

Convert HTML to clean Markdown: headings, links, images, lists, tables, code blocks, emphasis. Strips scripts, styles, and comments. POST { html } (max 500KB). Price: $0.005/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
html	string	yes	HTML document or fragment, max 500KB

No output schema declared.

No examples provided.

json_schema_validate JSON Schema Validate ~100

Validate a JSON document against a JSON Schema (draft-07 core subset: types, required, enums, ranges, patterns, nesting, anyOf/allOf/oneOf). Returns all violations with paths. POST { schema, data }. Price: $0.003/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
data	–	yes	Document to validate
schema	object	yes	JSON Schema (draft-07 core subset)

No output schema declared.

No examples provided.

markdown_to_html Markdown → HTML ~82

Render Markdown (GitHub-flavored: tables, fenced code, task lists) to clean HTML with raw inline HTML stripped. POST { markdown } (max 500KB). Price: $0.003/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
markdown	string	yes	GitHub-flavored Markdown, max 500KB

No output schema declared.

No examples provided.

qr QR Code (SVG) ~114

Generate a QR code as standalone SVG. POST { text, ecLevel?: 'L'|'M'|'Q'|'H', margin?: 0-8, dark?, light? } (text max 2KB). Price: $0.005/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
dark	string	–	hex color
ecLevel	string	–	–
light	string	–	hex color
margin	integer	–	–
text	string	yes	–

No output schema declared.

No examples provided.

read_page Read Page ~90

Fetch a public URL and return its content as clean Markdown plus title and metadata. One call instead of fetch + parse + convert. POST { url, maxBytes? } (default 1MB cap). Price: $0.005/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
maxBytes	integer	–	–
url	string	yes	Public http(s) URL

No output schema declared.

No examples provided.

timezone Timezone Convert ~122

Convert a timestamp between IANA timezones with DST handled correctly. Returns local times, UTC offsets, weekday, and hour-of-day per zone. POST { time?, from?, to } — to is a zone or array (max 20). Price: $0.002/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
from	string	–	IANA zone the input wall-clock is in
time	–	–	ISO string, epoch, or 'now'
to	–	yes	IANA zone or array of zones (max 20)

No output schema declared.

No examples provided.

validate_ids ID Validate Pack ~112

Validate identifiers with real checksum math: credit card (Luhn + brand), IBAN (mod-97), EAN-13/UPC-A, ISBN-10/13, UUID (with version). POST { type, value } or { items: [{type, value}] } (max 50). Price: $0.003/call with credits key; free demo without (2KB input cap).

Input Output Examples

Name	Type	Req	Description
items	array	–	–
type	string	–	–
value	string	–	–

No output schema declared.

No examples provided.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

6 Aug 9 Aug