Firefly Iii (xerrion) MCP Server
@xerrion/firefly-iii-mcp
npm
v0.1.1
Source verified
Published by xerrion — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
MCP server exposing 41 task-shaped Firefly III tools for personal accounting
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 3 = 97. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −3 | capability blast radius (moderate) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 0
Tools 41
Each tool and what it can reach — statically extracted from the published source.
get_accountingests untrusted inputget_ruleingests untrusted inputget_rule_groupingests untrusted inputget_transactioningests untrusted inputlist_transactionsingests untrusted inputcontribute_piggy_bankno sensitive capabilitycreate_accountno sensitive capabilitycreate_piggy_bankno sensitive capabilitycreate_ruleno sensitive capabilitycreate_rule_groupno sensitive capability
Show 31 more tools ↓
create_transactionno sensitive capabilitydelete_accountno sensitive capabilitydelete_billno sensitive capabilitydelete_budgetno sensitive capabilitydelete_categoryno sensitive capabilitydelete_piggy_bankno sensitive capabilitydelete_ruleno sensitive capabilitydelete_rule_groupno sensitive capabilitydelete_tagno sensitive capabilitydelete_transactionno sensitive capabilityget_financial_summaryno sensitive capabilityget_spending_insightsno sensitive capabilityget_system_infono sensitive capabilitylist_accountsno sensitive capabilitylist_billsno sensitive capabilitylist_budgetsno sensitive capabilitylist_categoriesno sensitive capabilitylist_piggy_banksno sensitive capabilitylist_rule_groupsno sensitive capabilitylist_rulesno sensitive capabilitylist_tagsno sensitive capabilitysearch_transactionsno sensitive capabilityupdate_accountno sensitive capabilityupdate_piggy_bankno sensitive capabilityupdate_ruleno sensitive capabilityupdate_rule_groupno sensitive capabilityupdate_transactionno sensitive capabilityupsert_billno sensitive capabilityupsert_budgetno sensitive capabilityupsert_categoryno sensitive capabilityupsert_tagno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (41 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.1.1 latest |
A 97/100 | 0 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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