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Agent Evidence API MCP Server

answering

Agent Evidence API is answering right now. Last checked 9 min ago. It exposes 4 tools. Last commit 5 Nov 2026.

Cited web evidence and fact checking for AI agents. $0.01 per call, no API key.

Uptime history 47 days of history · worst day 0%
47 days agonow
100.0%
Uptime 24h
182 of 182 checks
4
Tools
read from the server
632 ms
Response time
average over 24h
0
Stars
last commit 5 Nov 2026

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 24 September 2026. No other catalogue keeps this.

23 Oct a tool changed version2 times that day
23 Oct a tool appeared preview_evidence
19 Oct a tool changed version
18 Oct a tool appeared sample
18 Oct a tool description was rewritten research_evidence
24 Sep a tool changed version
and 1 more, back to 24 September 2026

What the code does

We read the source, 1 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

A line of code looks encrypted apps/worker/src/icon.ts:15
  "iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAYAAAD0eNT6AAAVN0lEQVR42u3dr1MdWR7G4dYcd4JBUHUshUCgKTSo1K1CIIKLib6IIKhY/gREMKmsjEDtILCpIGJGIxFj0Au1qd30Tu8UM0MIP+7ldp/v01WPGHu60+9nEu6laVxTu1Iu8ymX5ZTLesrlZcplJ+XyJuUyTrnspVz2Uy7vAILa796F4+7duNO9K9e7d+e8JXH1eeSXUi6jlMvblMv7lMtpyuX8+39fpVz+A8CTX…
…e:"amount",type:"uint256"}],outputs:[{type:"bool"}]}]});var Fy,Oy=P(()=>{Fy="0x82ad56cb"});var gf,Dy,Hy,po,Ia=P(()=>{gf="0x608060405234801561001057600080fd5b5060405161018e38038061018e83398101604081905261002f91610124565b6000808351602085016000f59050803b61004857600080fd5b60008083516…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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 9 min ago.

run in your terminal
claude mcp add agent-evidence-api --transport http https://agent-evidence-api.thx93.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://agent-evidence-api.thx93.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.agent-evidence-api]
url = "https://agent-evidence-api.thx93.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "agent-evidence-api": {
      "url": "https://agent-evidence-api.thx93.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-evidence-api": {
      "type": "http",
      "url": "https://agent-evidence-api.thx93.workers.dev/mcp"
    }
  }
}

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Available tools 4

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

health
health
Check that the Agent Evidence API MCP server is reachable and report which service version is running. Free to call, takes no arguments or payment. Returns only {status, service, version} and exposes no secrets or infrastructure detail.
preview
preview_evidence
Free preview of the paid tool: give one question and one public URL and get back up to three cited excerpts with the source URL, retrieval time and content hash. No assessment and no verdict - that is what research_evidence adds, over up to five sources. Capped per day. Use this to judge whether the paid call is worth 0.01 USDC.
research
research_evidence
Fetch public web sources and return structured, cited web evidence for a question or claim. Use this for source verification, claim verification, evidence extraction, and source-grounded research, or to compare sources. Returns source URLs, retrieval timestamps, short evidence excerpts, publisher and document metadata, and an explicit supported/contradicted/mixed/inconclusive assessment. Fresh web evidence is retrieved per request unless served from a bounded cache, and each source reports its actual retrieval time. Every excerpt returned is cited evidence tied to its source URL. No API key and no account: discovery is free, a call costs $0.01 in USDC on Base via x402, and nothing is charged when no source is retrieved.
sample
sample
Return one real, previously produced evidence package, free, so you can see exactly what a paid call returns before spending anything: a verdict, and for every source the URL, retrieval time, content hash and the cited excerpts. Takes no arguments and always returns the same package. The paid tool is research_evidence, which answers your own question.

Endpoints

URLTransportStateLatencyChecked
https://agent-evidence-api.thx93.workers.dev/mcp streamable-http answering 346 ms 9 min ago
https://agent-evidence.thx93.dev/mcp streamable-http answering 1002 ms 9 min ago

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same job, measured the same way
D
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Agent Evidence API — questions

Answers built from our own checks of this server.

What can Agent Evidence API do?
It exposes 4 tools, read directly from the server on our last check. Among them: health, preview_evidence, research_evidence, sample. 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 Agent Evidence API working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 182 of 182 checks got a reply (100.0%), average response time 632 ms. The bar chart above shows every period we have measured.
How do I connect Agent Evidence API?
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 Agent Evidence API need an API key?
No. Agent Evidence API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Agent Evidence API?
It answers our handshake in 632 ms on average, which is faster than 15% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Agent Evidence API open source?
The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at agent-evidence-api.thx93.workers.dev, which runs on its operator's own terms.