Fidren MCP Server

by fidren Your server? Claim it

answering

Fidren is answering right now. Last checked 3 min ago. It exposes 1 tools.

Checks a counterparty before an AI agent pays: what the evidence supports, and for how much.

Uptime history 51 days of history · worst day 95%

51 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

118 ms

Response time

average over 24h

authentication required

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Fidren every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add counterparty --transport http https://api.fidren.net/mcp

Settings → Connectors → Add custom connector, then paste this address

https://api.fidren.net/mcp

~/.codex/config.toml

[mcp_servers.counterparty]
url = "https://api.fidren.net/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "counterparty": {
      "url": "https://api.fidren.net/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "counterparty": {
      "type": "http",
      "url": "https://api.fidren.net/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

fidren

fidren_check_counterparty

Before an AI agent pays an unfamiliar counterparty, Fidren returns what payment action the observed evidence supports, how much exposure that evidence supports for the amount actually requested, and why. Same counterparty, same evidence, a different requested amount: potentially a different payment action. The amount is an input to the decision, not a filter applied to a fixed score. Call this before sending a payment to a counterparty address the agent has not paid before. Or before raising the amount it is willing to send to a counterparty it has paid before. Or when a counterparty requests more than a previously approved exposure. Cost: 100 free decisions per day, per IP. None. No account, no API key, no card, no wallet. After that, $0.01 USDC per decision over x402 on eip155:8453. Coverage: observed settlement history is indexed on base (eip155:8453) only. An address on any other chain answers from no history rather than from evidence — which is a statement about coverage, not a verdict about the counterparty. Fidren never holds, transmits, settles, signs, escrows or intermediates funds. It returns an advisory decision; the caller’s own infrastructure enforces it. A returned verdict is advice; it moves nothing and blocks nothing on its own.

Endpoints

URL	Transport	State	Latency	Checked
https://api.fidren.net/mcp	streamable-http	needs auth	121 ms	3 min ago

Alternatives to Fidren

same job, measured the same way

ASPERN: counterparty checks for agents

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What the chain records about an address before you pay it, and whether a payment fits it.

44 tools answering

AgenticWebScore

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Scan a public website for AI agent readiness: 60 checks, a score, and the evidence for each.

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Rebilder Agent Readability

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Check how well AI agents can read a web page: a score, the evidence and a ranked fix list.

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Tethered Trust

by tetheredtrust

Fit, compatibility and recall checks for AI agents before they buy: verdicts, evidence, receipts.

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Frisk

by tryfrisk

Screen the counterparty of an x402 payment before an agent pays it. Runs offline by default.

46 installs/wk local only

Vouch

by notifuturo

Check if a counterparty is safe to pay: trust/risk score for AI agents. Scam/phishing screen.

2 tools answering

Tanilo

by tkcollective

Tanilo checks the premise before an AI agent acts.

65 installs/wk local only

x402check

by caiovicentino

Risk-check counterparties before an AI agent pays; pay x402 resources only after a verified allow

168 installs/wk local only

Fidren — questions

Answers built from our own checks of this server.

What can Fidren do?

It exposes 1 tools, read directly from the server on our last check. Among them: fidren_check_counterparty. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Fidren working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 118 ms. The bar chart above shows every period we have measured.

How do I connect Fidren?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own credentials: it refuses anonymous clients.

Does Fidren need an API key?

Yes. Every time we knock, Fidren answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Fidren?

It answers our handshake in 118 ms on average, which is faster than 89% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.