Agent Trust Oracle

Official6 toolsLive

by jdhart81 · Python

Decay-weighted reputation + tamper-evident trust attestations for the agent economy.

Captured live from the server via tools/list.

record_outcome

Parameters5

agent_id	string	required
kind	string	required
weight	number	optional
counterparty	string	optional
note	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "agent_id": {
      "title": "Agent Id",
      "type": "string"
    },
    "kind": {
      "title": "Kind",
      "type": "string"
    },
    "weight": {
      "default": 1,
      "title": "Weight",
      "type": "number"
    },
    "counterparty": {
      "default": "",
      "title": "Counterparty",
      "type": "string"
    },
    "note": {
      "default": "",
      "title": "Note",
      "type": "string"
    }
  },
  "required": [
    "agent_id",
    "kind"
  ],
  "title": "record_outcomeArguments"
}

score_agent

Get an agent's decay-weighted trust score in [0,1] and tier. Unknown agents get a neutral 0.5 prior — no blind trust, no unfair zero.

Parameters1

agent_id

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "agent_id": {
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "agent_id"
  ],
  "title": "score_agentArguments"
}

attest

Issue a tamper-evident (hash-chained) trust attestation for an agent.

Parameters2

agent_id	string	required
claim	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "agent_id": {
      "title": "Agent Id",
      "type": "string"
    },
    "claim": {
      "default": "reputation-snapshot",
      "title": "Claim",
      "type": "string"
    }
  },
  "required": [
    "agent_id"
  ],
  "title": "attestArguments"
}

verify_attestation

Verify a previously issued attestation by recomputing its hash.

Parameters2

agent_id	string	required
attestation_id	string	required

Raw schema

{
  "type": "object",
  "properties": {
    "agent_id": {
      "title": "Agent Id",
      "type": "string"
    },
    "attestation_id": {
      "title": "Attestation Id",
      "type": "string"
    }
  },
  "required": [
    "agent_id",
    "attestation_id"
  ],
  "title": "verify_attestationArguments"
}

history

Full outcome history + attestation count + current score for an agent.

Parameters1

agent_id

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "agent_id": {
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "agent_id"
  ],
  "title": "historyArguments"
}

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 (6)

record_outcomescore_agentattestverify_attestationhistorydescribe_agent

Remote endpoint

Streamable HTTP

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

url

https://mcp.viridisconservation.com/trust/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

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

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