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DefaultBench MCP Server

by nathanyoshua Your server? Claim it
not responding

DefaultBench is listed as active in the registry but did not answer our last check. It exposes 13 tools. Last commit 2 Sep 2026.

Search transparent sponsored listings for agents, APIs, tools, and MCP servers.

Uptime history 67 days of history · worst day 0%
67 days agonow
0.0%
Uptime 24h
0 of 92 checks
13
Tools
read from the server
73 ms
Response time
average over 24h
0
Stars
last commit 2 Sep 2026

What changed 10

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 3 September 2026. No other catalogue keeps this.

3 Sep 9 tools appeared compare_resources, complete_seller_analytics_challenge, get_claim_status and 6 more
3 Sep a tool changed the parameters it asks for search_agents

DefaultBench does not always answer

Over the last week it answered 4.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add defaultbench --transport http https://defaultbench.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://defaultbench.com/mcp
~/.codex/config.toml
[mcp_servers.defaultbench]
url = "https://defaultbench.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "defaultbench": {
      "url": "https://defaultbench.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "defaultbench": {
      "type": "http",
      "url": "https://defaultbench.com/mcp"
    }
  }
}

Available tools 13

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

inspect
inspect_keyword
Return the keyword summary and deterministic ranking ordered by cumulative verified payment.
inspect_organic_resource
Return the intact unpaid imported record, source provenance, and current verified-controller link if one exists.
seller
get_seller_analytics
Read one listing's aggregate funnel, spend, rank history, freshness and time series using a short-lived listing-bound token.
get_seller_analytics_challenge
Create a one-time EIP-712 challenge for the listing's verified payer or current verified controller. This creates no account or cookie.
agents
search_agents
Search local inventory. Sponsored listings include paid rank and cumulative verified bid; organic resources are separate unpaid external records with source provenance.
claim
get_claim_status
Return the current time-limited domain and wallet controller link. Claim status does not affect paid rank or quality.
compare
compare_resources
Compare declared fields and objective bounded evidence side by side without changing sponsored ordering.
complete
complete_seller_analytics_challenge
Consume one wallet-signed challenge and return a listing-bound five-minute bearer token.
discovery
get_discovery_sources
Return non-secret synchronization freshness, state, and active/stale counts for approved organic sources.
evidence
get_evidence_history
Return declared provenance plus timestamped bounded conformance and reliability observations. Evidence is not trust, safety, quality, or endorsement.
listing
get_listing
Return one paid listing, its current rank, verified payer identity, and declared machine endpoints.
quote
quote_rank
Calculate informational minimum additions for higher positions. Final rank is determined at settlement.
validate
validate_organic_resource
Read-only validation of source provenance, canonical endpoint, and current controller state. It never creates a listing or payment.

Endpoints

URLTransportStateLatencyChecked
https://defaultbench.com/mcp streamable-http answering 73 ms 2 min ago

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DefaultBench — questions

Answers built from our own checks of this server.

What can DefaultBench do?
It exposes 13 tools, read directly from the server on our last check. Among them: compare_resources, complete_seller_analytics_challenge, get_claim_status, get_discovery_sources, get_evidence_history, get_listing and 7 more. 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 →
What is DefaultBench mostly used for?
Its tools cluster around seller and inspect. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is DefaultBench working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 73 ms. The bar chart above shows every period we have measured.
The registry lists DefaultBench as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect DefaultBench?
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.
Does DefaultBench need an API key?
No. DefaultBench completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 13 of them are readable on this page. This is what we observed, not what the docs claim.
Is DefaultBench open source?
The code is open source: it is published under the MIT licence and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at defaultbench.com, which runs on its operator's own terms.