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Agent Compute Ledger MCP Server

answering

Agent Compute Ledger is answering right now. Last checked 13 min ago. It exposes 13 tools. Last commit 1 Nov 2026.

Compute-is-carbon energy/carbon ledger for agent work with Landauer-limit validation.

Uptime history 91 days of history · worst day 99%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
13
Tools
read from the server
370 ms
Response time
average over 24h
0
Stars
last commit 1 Nov 2026

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 October 2026. No other catalogue keeps this.

1 Nov a tool appeared intelligence_bound
30 Oct a tool description was rewritten describe_agent

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.

    child = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
Page executes code built at runtime products/signed-cliff-check/verify.html:177
  $("cta").innerHTML = renderCta(PAYMENT_LINK_URL);

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 13 min ago.

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

verify
verify_attestation
Verify an attestation by recomputing the entry hash.
verify_chain
Verify the tamper-evident hash chain of an agent's ledger.
verify_inventory_chain
Verify an agent's inventory hash chain independently of compute work.
record
record_inventory
Record an audited GHG inventory in a separate append-only chain. mass_g is exact integer grams; content and factor-pack digests are bare lowercase SHA-256 hex. Idempotent on inventory_id.
record_work
Record a unit of agent compute work. energy_j = power_w * duration_s; carbon_g follows from grid intensity. If bit_ops is declared, the entry is validated against the Landauer floor (bit_ops * kB * T * ln2) — physically impossible claims are rejected. Idempotent on entry_id.
attest
attest
Issue a content-addressed attestation for a ledger entry (verifiable green-compute / energy claim).
carbon
carbon_receipt
Emit an x402-C carbon receipt for a recorded work entry — the physically-grounded {version, g_co2e, energy_j, method, landauer_*, ...} object an x402 machine-payment receipt can carry. method is 'landauer-floor' when the workload declared bit_ops (thermodynamically validated), else 'measured'. Pass offset_ref (a retirement id from the offset clearinghouse) to assert carbon-neutrality. Read-only; the returned attestation_hash binds the receipt to the ledger's hash chain.
describe
describe_agent
Describe this agent: name, version, purpose, every action it supports and the inputs each one takes. Read-only and free; call it first to learn how to use this server.
entries
list_entries
List all ledger entries for an agent.
footprint
footprint
Aggregate footprint for an agent: total J, kWh, gCO2e, cost, and mean Landauer efficiency. Totals are exact sums of the ledger entries.
intelligence
intelligence_bound
Thermodynamic ceiling on information processing for a power budget. Returns the Landauer ceiling P / (k_B*T*ln 2) on irreversible bit operations per second (established physics), the Intelligence Bound min(rho*B, P / (k_B*T*ln 2)) (Viridis's working conjecture), which term binds, and, if you pass a measured rate, how far your workload sits below it. Free, read-only and deterministic.
inventories
list_inventories
List the separate GHG inventory chain for an agent.
inventory
get_inventory
Fetch one immutable inventory record by inventory_id.

Endpoints

URLTransportStateLatencyChecked
https://mcp.viridisconservation.com/compute-ledger/mcp streamable-http answering 342 ms 13 min ago

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Agent Compute Ledger — questions

Answers built from our own checks of this server.

What can Agent Compute Ledger do?
It exposes 13 tools, read directly from the server on our last check. Among them: attest, carbon_receipt, describe_agent, footprint, get_inventory, intelligence_bound 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 Agent Compute Ledger mostly used for?
Its tools cluster around verify and record. 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 Agent Compute Ledger working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 370 ms. The bar chart above shows every period we have measured.
How do I connect Agent Compute Ledger?
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 Compute Ledger need an API key?
No. Agent Compute Ledger 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.
How fast is Agent Compute Ledger?
It answers our handshake in 370 ms on average, which is faster than 36% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Agent Compute Ledger open source?
The code is open source: it is published under the Apache-2.0 licence, written in Python, 0 stars on GitHub and 4 open issues. The licence covers the code in the repository, not the hosted service at mcp.viridisconservation.com, which runs on its operator's own terms.