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FreeAgent MCP Server

A Model Context Protocol server for the FreeAgent accounting API, enabling LLMs to manage contacts, invoices, estimates, bills, expenses, timeslips, projects, tasks, bank accounts, and more.

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// key findings
⚠️
Known vulnerabilities in dependencies: 11 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 3 credentials: FREEAGENT_ACCESS_TOKEN, FREEAGENT_CLIENT_SECRET, JWT_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies11 high10 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

highaxios@1.15.0GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

highaxios@1.15.0GHSA-3g43-6gmg-66jw

axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge

highaxios@1.15.0GHSA-6chq-wfr3-2hj9

Axios: Header Injection via Prototype Pollution

highaxios@1.15.0GHSA-777c-7fjr-54vf

Allocation of Resources Without Limits or Throttling in Axios

highaxios@1.15.0GHSA-hfxv-24rg-xrqf

Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
configBASE_URL
🔐 secretFREEAGENT_ACCESS_TOKENexport ="your_access_token"
configFREEAGENT_CLIENT_IDRequired env vars: , FREEAGENT_CLIENT_SECRET
🔐 secretFREEAGENT_CLIENT_SECRETRequired env vars: FREEAGENT_CLIENT_ID,
configFREEAGENT_TOOL_SEARCHexport =true
configFREEAGENT_USE_SANDBOXexport ="true" # optional
🔐 secretJWT_SECRET
configMCP_REFRESH_TOKEN_EXPIRY
configMCP_TOKEN_EXPIRY_SECONDS
configPRODUCTION_URLSet env var for stable OAuth callback URLs
// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/wavingcatapps-freeagent-mcp-vercel-1qblj0)](https://m8ven.ai/mcp/wavingcatapps-freeagent-mcp-vercel-1qblj0)
commit: 9e8deaf2aa13f3e199ffbd06d94fd478c9895006
code hash: 2f3130e13b040ac22edcf90bce0f7e7ec7347abdc46310d48177a3a336e9a230
verified: 6/22/2026, 1:04:33 PM
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FreeAgent MCP Server · M8ven Trust Score | M8ven