Install
$ agentstack add mcp-grenzfrei-sprytools-mcp ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ● Network access Used
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
SpryTools MCP Server
> A hosted Model Context Protocol server that gives AI agents 9 ready-to-use utility tools — hashing, text stats, IBAN & email validation, DNS lookup, currency conversion, world time, domain availability, and CiteReady GEO audits.
- Transport: Streamable HTTP (remote, hosted — nothing to install or run)
- Endpoint:
https://api.sprytools.com/mcp - Auth: free API key via
x-api-keyheader (orAuthorization: Bearer) - Website: https://sprytools.com · API hub: https://sprytools.com/apis
- Registry:
com.sprytools/sprytools(official MCP Registry)
Discovery without a key: the server card and the initialize / tools/list handshake are public, so registry crawlers and MCP hosts can introspect the server. tools/call requires a key and counts against your plan quota.
Quickstart
1. Get a free key
curl -X POST https://api.sprytools.com/v1/signup \
-H "content-type: application/json" \
-d '{"email":"you@example.com"}'
2. Add the server to your MCP client
Most clients that support remote / streamable-HTTP MCP servers take a config block like this:
{
"mcpServers": {
"sprytools": {
"type": "streamable-http",
"url": "https://api.sprytools.com/mcp",
"headers": { "x-api-key": "YOUR_KEY" }
}
}
}
For clients that only speak stdio, bridge via mcp-remote:
{
"mcpServers": {
"sprytools": {
"command": "npx",
"args": ["mcp-remote", "https://api.sprytools.com/mcp", "--header", "x-api-key:YOUR_KEY"]
}
}
}
3. Call a tool (raw JSON-RPC)
curl -X POST https://api.sprytools.com/mcp \
-H "content-type: application/json" \
-H "accept: application/json, text/event-stream" \
-H "x-api-key: YOUR_KEY" \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"validate_iban","arguments":{"iban":"DE89370400440532013000"}}}'
Tools
| Tool | Description | Parameters | |------|-------------|------------| | hash_text | Compute a cryptographic hash (md5, sha1, sha256, sha512) of a text. | text, algorithm (default sha256) | | text_stats | Analyze text: word/sentence counts, reading time and Flesch readability scores. | text | | validate_iban | Validate an IBAN (ISO 13616 MOD-97) and return bank/country details. | iban | | validate_email | Validate an email address: RFC syntax, MX records, disposable/role-based detection. | email | | dns_lookup | Look up DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA) for a domain. | domain, type (default A) | | convert_currency | Convert an amount between currencies using current ECB exchange rates. | from, to, amount | | world_time | Get the current time and UTC offset for an IANA timezone. | timezone (default UTC) | | check_domain | Check whether a domain name is available for registration (WHOIS + DNS). | domain | | geo_audit | Run a CiteReady GEO audit: how well AI search engines (ChatGPT, Perplexity, Google AI Overviews) can crawl, understand and cite a website. Returns score, grade and actionable findings. | url, pages (1–3, default 1) |
> The SpryTools API hub exposes 30+ utility APIs in total; this MCP server surfaces the 9 most agent-relevant of them as tools. See https://sprytools.com/apis for the full catalog.
Pricing
| Plan | Quota | Price | |------|-------|-------| | Free | 100 calls / day | €0 | | Starter | 10,000 calls / month | €2.99 / mo | | Pro | 100,000 calls / month | €8.99 / mo | | Business | 1,000,000 calls / month | €24.99 / mo |
Live pricing: GET https://api.sprytools.com/pricing · Subscribe: POST /v1/checkout/session { email, plan }
Notes
The canonical source for the tool list is the live server card at https://api.sprytools.com/.well-known/mcp/server-card.json. This repository holds the public MCP manifest (server.json) and documentation only — no server code or secrets. The server itself is operated as a hosted service.
License
[MIT](./LICENSE)
Source & license
This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: Grenzfrei
- Source: Grenzfrei/sprytools-mcp
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.