ghg-ledger MCP
An open-source MCP agent for auditable deterministic services that provides deterministic Scope 1/2/3 GHG inventories with bundled factors and audit hashes. It allows agents to perform GHG accounting and compliance tasks using pure Python without LLMs in the serving path.
Endpoint and access
No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.
https://mcp.viridisconservation.com/ghg-ledger/mcpWhat its tools do
6 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.
Checks and signals
Each line is separate evidence, not a trust score.
- Passed Endpoint answered the live check ·
- Availability 1 of 1 checks passed in 30 days
What you can do with it
- Generate deterministic Scope 1/2/3 GHG inventories
- Perform GHG accounting with bundled factors
- Verify audit hashes for compliance
Source and maintenance
- Maintenance checked
Protocol and capabilities
- Server
- ghg-ledger-agent 1.28.1
- MCP protocol negotiated in check
- 2025-11-25
- Tools
- 6 advertised
- Resources
- 0 advertised
- Resource templates
- 0 advertised
- Prompts
- 0 advertised
{
"tools": {
"listChanged": false
},
"prompts": {
"listChanged": false
},
"resources": {
"subscribe": false,
"listChanged": false
},
"experimental": {}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
6 advertised
calculate_inventory — Calculate GHG inventory
Calculate an auditable GHG inventory from explicit activity records. Returns per-line gas/CO2e results, Scope 1/2/3 and category rollups, dual Scope 2 reporting, indeterminate lines, factor lineage, notary payload, and an offset-clearinghouse dry-run weave. This is calculation, not advice. Price: $1.00 per call after 10 free calls/day. Pay at /x402/ghg-ledger/calculate_inventory with Base USDC, cash-fund payment_ref through escrow_checkout + confirm_escrow_funding, or use /seats.
{
"type": "object",
"title": "calculate_inventoryArguments",
"required": [
"activities"
],
"properties": {
"options": {
"anyOf": [
{
"type": "object",
"additionalProperties": true
},
{
"type": "null"
}
],
"title": "Options",
"default": null
},
"activities": {
"type": "array",
"items": {
"type": "object",
"additionalProperties": true
},
"title": "Activities"
},
"request_id": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Request Id",
"default": null
},
"payment_ref": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Payment Ref",
"default": null
}
}
}{
"type": "object",
"title": "calculate_inventoryOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "Calculate GHG inventory",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}classify_activity — Classify activity
Suggest scope and Scope 3 category from the bundled deterministic map. No inference is used; unknown activity types return no suggestion.
{
"type": "object",
"title": "classify_activityArguments",
"required": [
"activity"
],
"properties": {
"activity": {
"type": "object",
"title": "Activity",
"additionalProperties": true
}
}
}{
"type": "object",
"title": "classify_activityOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "Classify activity",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}list_factor_packs — List factor packs
List the bundled pack version/digest, supported regions and years, activity types, GWP set, and explicit MVP coverage.
{
"type": "object",
"title": "list_factor_packsArguments",
"properties": {}
}{
"type": "object",
"title": "list_factor_packsOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "List factor packs",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}get_factor_pack — Get factor pack
Return factors, GWP values, conversions, sources, and pack SHA for one exact bundled region/year. No nearest-region or nearest-year substitution.
{
"type": "object",
"title": "get_factor_packArguments",
"required": [
"region",
"year"
],
"properties": {
"year": {
"type": "integer",
"title": "Year"
},
"region": {
"type": "string",
"title": "Region"
}
}
}{
"type": "object",
"title": "get_factor_packOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "Get factor pack",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}verify_result — Verify result
Recompute a prior inventory's audit hash and conservation checks. Pass the prior result object as JSON; tampering or stale factor lineage is flagged.
{
"type": "object",
"title": "verify_resultArguments",
"required": [
"result_json"
],
"properties": {
"result_json": {
"type": "string",
"title": "Result Json"
}
}
}{
"type": "object",
"title": "verify_resultOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "Verify result",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}describe_agent — Describe this service
Return fleet-standard capabilities, version, pack digest, and pricing.
{
"type": "object",
"title": "describe_agentArguments",
"properties": {}
}{
"type": "object",
"title": "describe_agentOutput",
"required": [
"result"
],
"properties": {
"result": {
"type": "string",
"title": "Result"
}
}
}{
"title": "Describe this service",
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}Prompts
0 advertised
Resources
0 advertised
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 693 ms
- 95th percentile latency
- 693 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 693 ms · metadata changed · 6 tool(s), 0 resource(s), 0 resource template(s), 0 prompt(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http ghg-ledger-mcp https://mcp.viridisconservation.com/ghg-ledger/mcpCodex
codex mcp add ghg-ledger-mcp --url https://mcp.viridisconservation.com/ghg-ledger/mcpCursor
{
"mcpServers": {
"ghg-ledger-mcp": {
"url": "https://mcp.viridisconservation.com/ghg-ledger/mcp"
}
}
}Cline
{
"mcpServers": {
"ghg-ledger-mcp": {
"type": "streamableHttp",
"url": "https://mcp.viridisconservation.com/ghg-ledger/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"ghg-ledger-mcp": {
"type": "http",
"url": "https://mcp.viridisconservation.com/ghg-ledger/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http ghg-ledger-mcp https://mcp.viridisconservation.com/ghg-ledger/mcpClaude Desktop
https://mcp.viridisconservation.com/ghg-ledger/mcpWindsurf
{
"mcpServers": {
"ghg-ledger-mcp": {
"serverUrl": "https://mcp.viridisconservation.com/ghg-ledger/mcp"
}
}
}Let your agent find its tools
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