MCP.Market

Agent Arbitration MCP server

online · 100% uptime
by jdhart81·io.github.jdhart81/agent-arbitration·v0.2.0
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Deterministic, machine-verifiable dispute resolution for A2A escrows.

B81/100grade B
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Safety scan
B81/100

full report

Adoption
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If you have run it, two minutes of your experience saves the next person an afternoon.

Agent Arbitration tools (8, 1 write)

write = sends, deletes, buys or posts
  • describe_agentFree

    Fleet-standard self-description.

  • file_caseFree

    File a dispute over an escrow. Opens the evidence window. Parties must be distinct; amount is in minor currency units (cents).

  • get_caseFree

    Fetch the full case record, including any ruling.

  • list_casesFree

    List cases, optionally filtered by state (FILED|EVIDENCE_OPEN|RULED).

  • ruleFree

    Issue the deterministic ruling: allocates 100% of the disputed amount from evidence weights + trust scores, and emits an escrow instruction (release/refund). Exactly-once — re-ruling returns the existing ruling.

  • set_trust_scoresFree

    Attach trust-oracle reputation scores (party -> [0,1]) as ruling inputs.

  • submit_evidencewrite actionFree

    Submit evidence while the case is open. kind: delivery_proof (weight 3), log (2), or statement (1). Only the named parties may submit.

  • verify_rulingFree

    Recompute the ruling from its cited evidence + trust inputs and check it matches the stored allocation (machine-checkable justice).

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 172ms20/20
  • Tool poisoning8 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 81/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Agent Arbitration compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
81/100
higher than 63% of 4,460 AI and agents servers
Tools
8
the typical AI and agents server has 6
Tools that change things
13%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote AI and agents server answers 100%
Response time
11 ms
faster than 99% of 2,331 AI and agents servers

What its tools let an agent do: 6 read · 2 change

Install Agent Arbitration in Claude Code, Cursor or VS Code

claude mcp add --transport http agent-arbitration https://mcp.viridisconservation.com/arbitration/mcp
Add to Cursor

What the publisher says

From the Agent Arbitration repository's README, as published. We do not edit it. Read it on GitHub

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)

pip install -r requirements-dev.txt
python3 agent-escrow-agent/adapters/mcp_server.py          # stdio MCP
python3 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:

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

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.

Nothing above is checked by us. What we check is on the safety report.

Agent Arbitration: common questions

Is Agent Arbitration MCP server safe?
Mostly: it is graded B (81/100). Read the Agent Arbitration safety report
How do I install Agent Arbitration?
It runs remotely at mcp.viridisconservation.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Agent Arbitration need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Agent Arbitration maintained?
The last commit was 41 days ago (2026-09-24). The latest release is v0.2.0.
Is Agent Arbitration up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Agent Arbitration?
Servers from other publishers that do the same job: OpenWorkProof MCP server, three.ws Provenance MCP server and Ausca MCP server.
How does Agent Arbitration compare with other AI and agents MCP servers?
safety score 81/100 (higher than 63% of 4,460 AI and agents servers); tools 8 (the typical AI and agents server has 6); tools that change things 13% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Agent Arbitration

Same job from other publishers: the closest match first, then the best rated.

  • OpenWorkProof
    Verifiable agent evidence; opt-in Codex guard and reference SOC alert review.
    A
  • three.ws Provenance
    Append-only, signed, on-chain-verifiable agent action log — record and audit what agents did.
    B
  • Ausca
    Pay-per-call APIs and MCP services for agents, no accounts or keys, with verifiable receipts.
    A

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