Freeagent (samaxbytez) MCP Server
freeagent-mcp-server
npm
v1.3.0
Source verified
Published by samaxbytez — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
MCP server for the FreeAgent API
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 − 6 = 94. 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 |
|---|---|
| −6 | capability blast radius (high) — 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 1
high Shell/command execution in server code (build/auth.js)MTC-SRC-002
In the server's implementation (`build/auth.js:6`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: { execFile } from "node:child_process"; import { randomBytes } from "node:crypto"; import { TOKEN_BUFFER_MS } from "./ut
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/auth.js
Tools 76
Each tool and what it can reach — statically extracted from the published source.
freeagent_create_bank_accountno sensitive capabilityfreeagent_create_billno sensitive capabilityfreeagent_create_contactno sensitive capabilityfreeagent_create_credit_noteno sensitive capabilityfreeagent_create_estimateno sensitive capabilityfreeagent_create_expenseno sensitive capabilityfreeagent_create_invoiceno sensitive capabilityfreeagent_create_projectno sensitive capabilityfreeagent_create_taskno sensitive capabilityfreeagent_create_timeslipno sensitive capability
Show 66 more tools ↓
freeagent_create_userno sensitive capabilityfreeagent_delete_bank_accountno sensitive capabilityfreeagent_delete_billno sensitive capabilityfreeagent_delete_contactno sensitive capabilityfreeagent_delete_credit_noteno sensitive capabilityfreeagent_delete_estimateno sensitive capabilityfreeagent_delete_expenseno sensitive capabilityfreeagent_delete_invoiceno sensitive capabilityfreeagent_delete_projectno sensitive capabilityfreeagent_delete_taskno sensitive capabilityfreeagent_delete_timeslipno sensitive capabilityfreeagent_delete_userno sensitive capabilityfreeagent_get_balance_sheetno sensitive capabilityfreeagent_get_bank_accountno sensitive capabilityfreeagent_get_bank_transactionno sensitive capabilityfreeagent_get_billno sensitive capabilityfreeagent_get_categoryno sensitive capabilityfreeagent_get_companyno sensitive capabilityfreeagent_get_contactno sensitive capabilityfreeagent_get_credit_noteno sensitive capabilityfreeagent_get_current_userno sensitive capabilityfreeagent_get_estimateno sensitive capabilityfreeagent_get_expenseno sensitive capabilityfreeagent_get_invoiceno sensitive capabilityfreeagent_get_opening_balancesno sensitive capabilityfreeagent_get_profit_and_lossno sensitive capabilityfreeagent_get_projectno sensitive capabilityfreeagent_get_taskno sensitive capabilityfreeagent_get_tax_timelineno sensitive capabilityfreeagent_get_timeslipno sensitive capabilityfreeagent_get_trial_balanceno sensitive capabilityfreeagent_get_trial_balance_openingno sensitive capabilityfreeagent_get_userno sensitive capabilityfreeagent_list_bank_accountsno sensitive capabilityfreeagent_list_bank_transactionsno sensitive capabilityfreeagent_list_billsno sensitive capabilityfreeagent_list_business_categoriesno sensitive capabilityfreeagent_list_categoriesno sensitive capabilityfreeagent_list_contactsno sensitive capabilityfreeagent_list_credit_notesno sensitive capabilityfreeagent_list_estimatesno sensitive capabilityfreeagent_list_expensesno sensitive capabilityfreeagent_list_invoicesno sensitive capabilityfreeagent_list_projectsno sensitive capabilityfreeagent_list_tasksno sensitive capabilityfreeagent_list_timeslipsno sensitive capabilityfreeagent_list_usersno sensitive capabilityfreeagent_mark_estimate_as_approvedno sensitive capabilityfreeagent_mark_estimate_as_sentno sensitive capabilityfreeagent_mark_invoice_as_cancelledno sensitive capabilityfreeagent_mark_invoice_as_draftno sensitive capabilityfreeagent_mark_invoice_as_sentno sensitive capabilityfreeagent_send_invoice_emailno sensitive capabilityfreeagent_start_timerno sensitive capabilityfreeagent_stop_timerno sensitive capabilityfreeagent_update_bank_accountno sensitive capabilityfreeagent_update_billno sensitive capabilityfreeagent_update_contactno sensitive capabilityfreeagent_update_credit_noteno sensitive capabilityfreeagent_update_estimateno sensitive capabilityfreeagent_update_expenseno sensitive capabilityfreeagent_update_invoiceno sensitive capabilityfreeagent_update_projectno sensitive capabilityfreeagent_update_taskno sensitive capabilityfreeagent_update_timeslipno sensitive capabilityfreeagent_update_userno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (76 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 |
|---|---|---|---|---|
v1.3.0 latest |
A 94/100 | 1 | 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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