MCP QUEEN
tools.xearno/calculators A
Calculators for money and business decisions, with benchmark-based operator insights.
Otherv1.1.0streamable-httpxearno.tools
Grade evidence — probed 2026-07-21 15:01 UTC
| Criterion | Points | Observed |
|---|---|---|
| reachability | 25 / 25 | HTTP 200, initialize accepted in 844ms |
| protocol | 15 / 15 | valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo xearno-tools@1.1.0 |
| tooling | 35 / 35 | tools/list OK: 33 tools e.g. "compound_growth"; 33/33 described, 33/33 fully-typed schemas, median description 262 chars |
| latency | 7 / 10 | initialize round-trip 844ms |
| provenance | 12 / 15 | description present; no repository URL; version 1.1.0; namespace tools.xearno matches endpoint/repo |
Score 94/100 · latency 844ms · 33 tools · protocol access: open ⓘ
Trust receipt
Security, data integrity, citation quality, and advertised claims are measured separately from protocol uptime. Missing evidence is marked unverified, never converted into a pass.
| Dimension | Metric | Status | Evidence | Source |
|---|---|---|---|---|
| citation_quality | citation_capability_advertised | unverified | Metadata/tool descriptions advertise citation or evidence capability: currency Convert between 31 currencies at the official ECB reference rate — and know what your bank adds on top | Converts any amount between 31 major currencies using the European Central Bank daily reference rate — the neutral mid-market rate — and tells you the part every converter hides: the spread your bank or card will add on top of it. No response-level citation benchmark has verified this claim yet. | live_probe |
| security | authentication_boundary | observed | Live protocol probe observed auth_state=open. This describes discovery/access behavior; it is not by itself a vulnerability finding. Observed value: open | live_probe |
Machine-readable receipt: /api/trust/tools.xearno/calculators.json
Connect your agent
Claude Code:
claude mcp add --transport http calculators https://xearno.tools/mcp
Generic MCP client config:
{ "mcpServers": { "calculators": { "type": "http", "url": "https://xearno.tools/mcp" } } }
MCP Queen is a graded index, not a middleman — your agent connects directly to the server above. Check the grade and evidence first; that's the point.
Share this server: permalink https://mcpqueen.com/s/tools.xearno/calculators · referral link https://mcpqueen.com/go/tools.xearno/calculators (counts as “routed via the queen”).
Own this server? Embed your grade badge
Live operational-grade badge, re-probed continuously — not a security or data-quality certification. Put it in your README and link to the complete receipt:
[](https://mcpqueen.com/s/tools.xearno/calculators)
Think the grade is wrong? Fix the finding the evidence shows, then the next probe cycle picks it up automatically (full cycle ≈ 3 days) — or open a dispute via the MCP endpoint.
Queen Watch
Email alerts when the grade changes or the endpoint stops answering. Double-opt-in, one-click unwatch, free while in beta.
Probe history
| When (UTC) | Grade | Score | Latency |
|---|---|---|---|
| 2026-07-21 15:01 | A | 94 | 844ms |