Agent Offset Clearinghouse

Official7 toolsLive

by jdhart81 · Python

Verified-credit carbon accountability — the conservation flywheel.

Captured live from the server via tools/list.

list_credit

List a conservation credit on the book. verification_ref (a D-Score / land-verification attestation) is REQUIRED — unverified credits cannot enter the book.

Parameters5

issuer	string	required
project_id	string	required
mass_g	integer	required
price_minor_per_kg	integer	required
verification_ref	string	required

Raw schema

{
  "type": "object",
  "properties": {
    "issuer": {
      "title": "Issuer",
      "type": "string"
    },
    "project_id": {
      "title": "Project Id",
      "type": "string"
    },
    "mass_g": {
      "title": "Mass G",
      "type": "integer"
    },
    "price_minor_per_kg": {
      "title": "Price Minor Per Kg",
      "type": "integer"
    },
    "verification_ref": {
      "title": "Verification Ref",
      "type": "string"
    }
  },
  "required": [
    "issuer",
    "project_id",
    "mass_g",
    "price_minor_per_kg",
    "verification_ref"
  ],
  "title": "list_creditArguments"
}

buy_offset

Retire mass_g of verified credits for a buyer: cheapest-first matching, exactly-once (idempotent on purchase_id), returns a content-addressed offset certificate with per-fill costs. Payment settles via escrow.

Parameters3

buyer	string	required
purchase_id	string	required
mass_g	integer	required

Raw schema

{
  "type": "object",
  "properties": {
    "buyer": {
      "title": "Buyer",
      "type": "string"
    },
    "purchase_id": {
      "title": "Purchase Id",
      "type": "string"
    },
    "mass_g": {
      "title": "Mass G",
      "type": "integer"
    }
  },
  "required": [
    "buyer",
    "purchase_id",
    "mass_g"
  ],
  "title": "buy_offsetArguments"
}

net_position

Buyer's carbon position: emitted (from agent-compute-ledger) minus retired. carbon_accountable == true when fully offset.

Parameters2

buyer	string	required
emitted_g	number	required

Raw schema

{
  "type": "object",
  "properties": {
    "buyer": {
      "title": "Buyer",
      "type": "string"
    },
    "emitted_g": {
      "title": "Emitted G",
      "type": "number"
    }
  },
  "required": [
    "buyer",
    "emitted_g"
  ],
  "title": "net_positionArguments"
}

verify_certificate

Verify an offset certificate: recompute its hash and check the ledger.

Parameters1

certificate

object

required

Raw schema

{
  "type": "object",
  "properties": {
    "certificate": {
      "additionalProperties": true,
      "title": "Certificate",
      "type": "object"
    }
  },
  "required": [
    "certificate"
  ],
  "title": "verify_certificateArguments"
}

book

The full credit book with per-credit and book-wide mass conservation totals.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "title": "bookArguments"
}

get_purchase

Fetch a past purchase / offset certificate by id.

Parameters1

purchase_id

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "purchase_id": {
      "title": "Purchase Id",
      "type": "string"
    }
  },
  "required": [
    "purchase_id"
  ],
  "title": "get_purchaseArguments"
}

describe_agent

Fleet-standard self-description.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "title": "describe_agentArguments"
}

README.md4 KBView on GitHub

Viridis Agent Fleet — MCP Surface

The public MCP-facing surface of the Viridis agent stable: a 13-agent agent-to-agent (A2A) economy published on the Model Context Protocol registry under the earth.viridis namespace. This repository is the callable spec + provenance for those listings — the registry manifests, the JSON-Schema tool definitions, the public agent contracts, and the reference gateway. The agent cores are maintained privately; everything here is what a calling agent needs.

By Viridis LLC — conservation technology.

The economy: identity → trust → escrow → settlement → constitution

Trustworthy agents transacting with agents needs rails. This fleet ships them as composable MCP services:

Layer	Agent	What it provides
Identity	`agent-identity-registry`	Content-addressed agent DIDs + capability discovery — the passport + directory
Trust	`agent-trust-oracle`	Decay-weighted reputation + tamper-evident trust attestations
Settlement	`agent-escrow`	Trustless escrow with an exactly-once state machine + audit hash chain
Metering	`agent-metering`	Usage metering + SLA accounting — the meter behind x402
Arbitration	`agent-arbitration`	Dispute-resolution oracle consuming trust signals
Compute ledger	`agent-compute-ledger`	"Compute is carbon" cost/energy accounting for agent work
Covenant	`agent-covenant`	Deny-by-default authority leases for agents wielding real power
Provenance	`agent-provenance`	Genesis certificates, lineage, cascading recalls
Offsets	`agent-offset-clearinghouse`	Verified-credit carbon accountability — the conservation flywheel
Revenue	`smartscale`	Credit-card-calibrated measurement — the first sellable service
Revenue	`protogen`	MCP CAD services; bundles with SmartScale (measure → CAD)
Revenue	`regulatory-radar`	CSRD/TNFD compliance-as-a-service
Enabler	`narrative-engine`	Grant / investor / policy narrative generation

Layout

code

mcp-publish/<agent>/server.json   # MCP registry manifest (earth.viridis/*)
mcp-publish/<agent>/tools.json    # JSON-Schema tool definitions (one per action)
mcp-publish/<agent>/DEPLOY.md     # env, endpoints, how a caller uses it
contracts/<agent>.md              # public agent contract (capabilities, invariants)
gateway/                          # reference gateway: one process hosts all 13 over streamable-http
docs/A2A_ECONOMY.md               # the full identity→trust→escrow thesis + composition demo

Calling an agent

Every agent is a streamable-HTTP MCP server hosted behind https://mcp.viridis.earth/<path>/mcp (paths in each server.json). Point any MCP client at the URL, or discover them on the registry by searching earth.viridis. Each tools.json is the exact tool surface — one tool per agent action, with typed input/output schemas.

Status

LIVE (2026-07-09). All 13 published on the MCP registry under io.github.jdhart81/* and hosted at https://viridis-agent-stable.fly.dev (/healthz = 13 ok). The as-shipped manifests are in mcp-publish-github/ (the mcp-publish/ set holds the branded earth.viridis variants for the round-1b rebrand + custom domain mcp.viridis.earth).

Round-1 posture: endpoints are open (read-tool posture); no funds move — escrow, offsets, and metering are state machines, with payment rails (x402 for A2A, Stripe for human-facing services) attaching in a later round. See docs/A2A_ECONOMY.md.

Install

Tools (7)

list_creditbuy_offsetnet_positionverify_certificatebookget_purchasedescribe_agent

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://mcp.viridisconservation.com/offsets/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "agent-offset-clearinghouse": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.viridisconservation.com/offsets/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.