MCP.Market

Agent Covenant MCP server

online · 100% uptime
by jdhart81·io.github.jdhart81/agent-covenant·v0.1.1
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Deny-by-default authority leases for agents wielding real power.

A91/100grade A
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Safety scan
A91/100

full report

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

Agent Covenant tools (7)

write = sends, deletes, buys or posts
  • check_actFree

    Check (and if allowed, record) a proposed act against a covenant. Deny-by-default. Idempotent on act_id — retries never double-consume budget. Every check lands on the audit chain.

  • covenant_statusFree

    Current state, consumed/remaining budget, and check count.

  • describe_agentFree

    Fleet-standard self-description.

  • grant_covenantFree

    Grant an agent a covenant: an explicit lease of authority. scopes support wildcards ('payments.*', '*'); budget_minor is the total spend ceiling in minor units; expires_at is ISO-8601. Returns the covenant_id.

  • list_covenantsFree

    List covenants, optionally filtered by state (ACTIVE|REVOKED|EXPIRED) and/or the bound agent.

  • revoke_covenantFree

    Revoke a covenant immediately and terminally. All subsequent checks deny.

  • verify_auditFree

    Verify the tamper-evident audit chain of allowed/denied acts.

Public scan report

scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 553ms20/20
  • Tool poisoning7 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 91/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Agent Covenant compares

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

Safety score
91/100
higher than 88% of 4,460 AI and agents servers
Tools
7
the typical AI and agents server has 6
Tools that change things
0%
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
12 ms
faster than 99% of 2,331 AI and agents servers

What its tools let an agent do: 6 read · 1 delete

Install Agent Covenant in Claude Code, Cursor or VS Code

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

What the publisher says

From the Agent Covenant 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 Covenant: common questions

Is Agent Covenant MCP server safe?
Yes, by our scan: it is graded A (91/100). Read the Agent Covenant safety report
How do I install Agent Covenant?
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 Covenant need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Agent Covenant maintained?
The last commit was 39 days ago (2026-09-26). The latest release is v0.1.1.
Is Agent Covenant 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 Covenant?
Servers from other publishers that do the same job: Power BI Authoring MCP Server (Local), Agent Sniper MCP server and Attestix MCP server.
How does Agent Covenant compare with other AI and agents MCP servers?
safety score 91/100 (higher than 88% of 4,460 AI and agents servers); tools 7 (the typical AI and agents server has 6); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Agent Covenant

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

  • Power BI Authoring MCP Server (Local)
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    A
  • Agent Sniper
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    B
  • Attestix
    AI agent identity, signed credentials, delegated authority and governance evidence.
    A

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