FirmFax prop firm data
Independent rule and fee data on 71 prop trading firms, every figure with its evidence state.
| Endpoint | https://firmfax.com/api/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 6 tools · grade A (94) · pin ts_a101c66f5f85aa6b57b73dd17f4ad1ce · protocol 2025-06-18 |
| First / last listed | 2026-11-11 01:59 UTC / 2026-11-11 01:59 UTC |
| Grade over time | 2026-11-11: A (94), 6 tools |
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Tools: get_firm get_rule_changes get_evidence find_firms compare_firms list_firms
get_firm | One prop trading firm. Every figure states whether we hold evidence for it, and a firm whose score range spans more than one band carries no letter grade at all. params: slug* |
get_rule_changes | The dated record of what changed, newest first. Every entry states its KIND, and most of this tape is FirmFax correcting its own data rather than a firm changing its rules. Read counts before describing industry activity: a total taken across kinds overstates it. params: slug, since, kind, limit |
get_evidence | The stored reading behind a figure: the verbatim quote, the page it came from, and the date we read it. Answers "we hold none" explicitly rather than returning an empty list. `outcome` is load-bearing: a `contradicted`, `contradiction` or `absent` row records what we read, not a figure we publish. Use get_firm for the published figure. params: slug*, field |
find_firms | Firms matching every criterion given. A firm whose record does not carry a criterion is never counted as a match and never silently dropped: it is returned separately under unknown, with the field that could not be tested. Absence is common here, so read counts before treating the matched list as the answer. params: assetClass, maxActivationFee, maxResetFee, maxConsistencyPct, maxDailyLossLimit, dailyLossLimitUnit, maxMinTradingDays, minTradingDaysUnit, minTradingDaysMinProfit, maxMinDaysToPayout, minDaysToPayoutUnit, minDaysToPayoutMinProfit |
compare_firms | Two firms side by side. Reports each figure with its evidence state and whether the pair is comparable at all: a field neither firm records is not a tie, and a field only one records is not a win. No per-field winner is declared, because the direction of "better" for several of these is a judgement the published scoring model already makes; each firm's grade is returned alongside so the verdict co params: a*, b* |
list_firms | Every firm slug and name. Carries no figures, so nothing here needs evidence. params: none |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.