Tallyfern Rates (Canada)
mcp remote · streamable-http · v0.3.4 · source: crawl
https://mcp.tallyfern.com/mcp
Read-only Canadian GST/HST rates, small-supplier check and CRA allowance rates, with CRA sources.
Works
100
Verified Oct 31, 2026 · p50 493 ms · p95 516 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'tallyfern-rates' |
| tools_listed | 15 | pass | 5 tools |
| schema_complete | 15 | pass | 5 of 5 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 493 ms |
| latency_p95 | 5 | pass | p95 516 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (5)
| Name | Description | Schema |
|---|---|---|
gst_hst_small_supplier_check | Apply the CRA's $30,000 small-supplier tests (single calendar quarter and four consecutive calendar quarters) to taxable revenue by calendar quarter. Says whether the person must register for the GST/ | typed |
gst_hst_rate_by_province | Current GST/HST rate for a Canadian province or territory (or all 13), with the PST/QST rate CRA lists for reference. From CRA's 'Charge and collect the GST/HST' table. Returns structuredContent with | typed |
cra_automobile_allowance_rate | CRA reasonable per-kilometre allowance rates for employer-paid vehicle allowances (2026 default; 2025 also available): first 5,000 km and after, provinces vs territories. Optionally calculates the all | typed |
cra_meal_travel_allowance | CRA simplified-method rates (latest published tax year): flat meal rate per meal and maximum per day, and vehicle cents/km by province or territory where travel begins. These apply to moving expenses, | typed |
ontario_hst_basics | Plain-language basics for Ontario businesses: the 13% HST rate, the $30,000 small-supplier threshold, the 29-day registration deadline and place-of-supply rule, with CRA sources. Returns structuredCon | typed |
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[](https://app.agent-xm.com/a/com-tallyfern-rates)
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