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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "coinslot": {
      "type": "http",
      "url": "https://coinslot.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${COINSLOT_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http coinslot https://coinslot.dev/mcp --header "Authorization: Bearer ${COINSLOT_TOKEN}"

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "coinslot": {
      "type": "remote",
      "url": "https://coinslot.dev/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:COINSLOT_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "coinslot": {
      "type": "http",
      "url": "https://coinslot.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${COINSLOT_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=coinslot&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY29pbnNsb3QuZGV2L21jcCIsImhlYWRlcnMiOnsiQXV0aG9yaXphdGlvbiI6IkJlYXJlciAke0NPSU5TTE9UX1RPS0VOfSJ9fQ%3D%3D"
}

{
  "servers": {
    "coinslot": {
      "type": "http",
      "url": "https://coinslot.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${COINSLOT_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "coinslot": {
      "httpUrl": "https://coinslot.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${COINSLOT_TOKEN}"
      }
    }
  }
}

extensions:
  "coinslot":
    enabled: true
    name: "coinslot"
    type: streamable_http
    uri: "https://coinslot.dev/mcp"
    headers:
      "Authorization": "Bearer ${COINSLOT_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${COINSLOT_TOKEN}. The registry never accepts secret values.

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: html_to_markdown (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); qr (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); markdown_to_html (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,435 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

13 tools, about 1,435 tokens to load them all · tool set 8517dab689c3 · checked 2026-10-20 11:08 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 79 / 100

no-repository

provenance55

liveness98

freshness85

hygiene80

+dns-namespace +website +reachable +uptime-95% ~updated-75d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://coinslot.dev/mcp` streamable-http	none	yes	95%	408 ms	2025-06-18	2026-10-20

Tools (13)

`convert`	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).
`cron`	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).
`diff`	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).
`email_verify`	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).
`extract`	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).
`feed_to_json`	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).
`html_to_markdown`	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).
`json_schema_validate`	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).
`markdown_to_html`	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).
`qr`	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).
`read_page`	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).
`timezone`	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).
`validate_ids`	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).

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.coinslot/coinslot",
  "title": "Coinslot — the vending machine for machines",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://coinslot.dev/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional: 'Bearer ck_...' credits key for full input limits (buy at coinslot.dev). Without it, tools run in free demo mode with 2KB input caps."
        }
      ]
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://coinslot.dev",
  "description": "13 micro-tools for agents: read pages, verify email, convert, validate, diff, extract. AI-operated."
}