Agent Notary

io.github.jdhart81Published by GitHub account jdhart81v0.2.0Updated Oct 24, 2026

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

The publisher's own server: Energyai

VerifiedStreamable HTTPWeb executableSecurity & MonitoringBusiness & Commerce

Overview

AI-generated overview

A hosted notary MCP service for commit-reveal notarization of agent deliverables, with digests, salts, delivery proofs and verifiable outcome receipts.

What you can do
  • Commit to a deliverable before handover, with a deadline and context, idempotent per committer and nonce
  • Reveal a commitment's digest and salt after handover and get a delivery proof string for escrow release
  • Verify a revealed commitment independently, optionally against the digest of content you received
  • Check a commitment's status and list commitments filtered by pending, revealed or expired state
  • Seal an agent output as an Outcome Receipt and look up whether a receipt commitment is registered with this notary
  • Describe the agent's capabilities and input contract
When to use it
Useful when an assistant acts as a seller or buyer in agent-to-agent delivery and needs tamper-evident proof that content was fixed before handover and revealed afterwards, for example to support escrow release or offline receipt checks.
Requirements
Remote streamable HTTP endpoint at mcp.viridisconservation.com; no authentication, environment variables or headers are declared. The README notes a hosted free tier of 10 calls per day per service, with verification always free.
Before you install
The hosted service is proprietary and its payment, signing and telemetry layers are not in the repository. Commitments expire if revealed late, and a single bit of drift fails verification. The notary attests integrity and time, not correctness of the content. Paid tiers and payments are mentioned for the hosted fleet.

Installation

In SourceWeft

  1. Open Agent Notary in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.jdhart81%2Fagent-notary/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "agent-notary": {
      "type": "http",
      "url": "https://mcp.viridisconservation.com/notary/mcp"
    }
  }
}

README

Viridis Agent Fleet: open-source agents for the agent economy

Deterministic, auditable MCP agents: trust and settlement rails (identity, trust, escrow, metering, arbitration, notary, surety, provenance, covenant, offsets, compute-ledger) and priced-grade services (tax credits, GHG accounting, construction takeoff, measurement, compliance). Every core is pure Python with no LLM in the serving path, and every result is content-addressed so anyone can re-verify it.

Licensed Apache-2.0. Run any agent yourself, fork it, embed it.

Run an agent locally (free, forever)

bash
pip install -r requirements-dev.txtpython3 agent-escrow-agent/adapters/mcp_server.py          # stdio MCPpython3 run_fleet_tests.py                                 # every agent's invariant tests

Or use the hosted fleet

https://mcp.viridisconservation.com runs all agents as one managed MCP service:

Self-hosted (this repo)Hosted by Viridis
Agent logic & verification✅ identical✅ identical
Viridis-signed receipts & notary chain–✅
Shared trust/reputation network data–✅
Maintained rule packs (tax, GHG factors, regs)snapshot✅ kept current
Payments (x402, card), seats, SLA–✅

Free tier: 10 calls/day per service; the rails (identity, escrow, metering…) are free forever. Verification is always free.

For agents

Agents and LLM tools can start from llms.txt, a generated index of every agent, and AGENTS.md, the rules for using and changing the fleet.

Part of the Viridis open-source commons

Building agents for conservation or energy work? VergeCommon and EnergyAI MCP also expose MCP tools, and ViridisOS serves its decision functions to agents over MCP.

This project is one of a connected set of open tools from Viridis. Each stands on its own; together they run from field evidence to checked decisions.

Conservation commons

Verifiable science

  • Viridis Canon: machine-checked Lean 4 mathematics for ecological decisions, with a DOI for every result
  • ViridisOS: open reference runtime for DOI-backed decision modules and recomputable results
  • Viridis Research: the nightly public research record, each claim labeled by what a verifier actually checked
  • ProofLens: see what a Lean statement means before reading the proof

Agent tools

  • Viridis Agent Fleet (this repository): open-source MCP agents with deterministic, auditable cores
  • EnergyAI MCP: energy-planning estimates and incentive sources for AI agents

Browse every project on the Viridis profile. If this one is useful to you, a star helps other people find it.

Boundary

This repo contains agent cores, MCP adapters, tests, standards and self-host tooling. The hosted service layer (gateway, payment and settlement, seats, signing authority, operations, telemetry and customer data) is proprietary and is not in this repo. Please don't open PRs that add it.

"Viridis", "Viridis Conservation" and the Viridis marks are trademarks of Viridis LLC; see TRADEMARKS.md.

Source: README.md at commit 350712c

Tools

8

commit

Commit to a deliverable BEFORE handover. commit_hash = sha256(salt || sha256(content)) as 64 hex chars; deadline is ISO-8601; context links the escrow/job. Idempotent per (committer, nonce).

Parametersnoncerequiredcontextdeadlinerequiredcommitterrequiredcommit_hashrequired

reveal

Reveal the committed content's digest + salt after handover. Verifies against the commitment (one bit of drift fails); returns a delivery_proof string for escrow release. Late reveals expire the commitment.

Parameterssaltrequiredcommitment_idrequiredcontent_digestrequired

verify

Independently verify a revealed commitment; optionally check it against the digest of content you received.

Parameterscommitment_idrequiredcontent_digest

commitment_status

Current record for a commitment (pre-reveal, salt/digest stay hidden).

Parameterscommitment_idrequired

list_commitments

List commitments, optionally filtered by state (PENDING|REVEALED|EXPIRED).

Parametersstate

seal_outcome_receipt

Seal an agent output as an Outcome Receipt (ORC v0.1) and register its commitment. Returns a portable receipt anyone can verify offline (L1) and against this notary's registry (L2). The notary attests integrity and time ("notarized"), not correctness. No floats in output; stores only digests. Spec: docs/standards/OUTCOME_RECEIPT_v0.1.md

Parametersoutputrequiredprofilesubjectbindingsexcludes

get_orc_commitment

Registry lookup: is this ORC commitment sealed by this notary? Returns digest, issuer, profile, attestation and registered_at, or NotFound.

Parameterscommitmentrequired

describe_agent

Return capabilities and input contract.

Takes no parameters.

Version history

2
  1. v0.2.0LatestSep 26, 2026
  2. v0.1.0Sep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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