MCP.Market

Agent Offset Clearinghouse MCP server

online · 100% uptime
by jdhart81·io.github.jdhart81/agent-offset-clearinghouse·v0.6.0
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Verified conservation credits matched to agent compute emissions — the conservation flywheel of the

B81/100grade B
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Safety scan
B81/100

full report

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

Agent Offset Clearinghouse tools (19, 3 write)

write = sends, deletes, buys or posts
  • bookFree

    The full credit book with per-credit and book-wide mass conservation totals.

  • buy_offsetwrite actionFree

    Retire mass_g of verified credits for a buyer: cheapest-first matching, exactly-once (idempotent on purchase_id), returns a content-addressed offset certificate with per-fill costs. Payment settles via escrow. dry_run=true previews the exact fills/cost without mutating the book.

  • buy_offset_budgetwrite actionFree

    Money-denominated offset purchase: retire the maximum cheapest-first verified mass whose exact cost fits inside budget_minor (never overspends). Built for callers whose restoration obligation is a currency amount — e.g. a revenue share accrued in a ledger. Idempotent on purchase_id; dry_run=true previews without mutating.

  • certify_disbursementFree

    Freeze the current disbursement schedule into a certified, tamper-evident batch (content-addressed, hash-chained). Idempotent on batch_id; only newly-accrued proceeds for verified projects are certified (never disbursed twice). This is the certified investment record the CEO executes the actual Stripe transfers against.

  • delist_creditFree

    Admin operation: remove a credit from the active fill path while retaining its listing and retirement history for audit. Idempotent for an already-delisted credit. Gateway state-change authentication is required.

  • describe_agentFree

    Fleet-standard self-description.

  • disbursement_scheduleFree

    Automated disbursement preview: for each verified restoration project, splits its newly-accrued proceeds into the Viridis Conservation withhold (default 15%, seeds the software/business) and the project payout (85%). Read-only. Funded-but-unregistered projects are surfaced separately as pending_registration (can't pay an unverified project).

  • get_purchasewrite actionFree

    Fetch a past purchase / offset certificate by id.

  • list_creditFree

    List a conservation credit on the book. verification_ref (a D-Score / land-verification attestation) is REQUIRED — unverified credits cannot enter the book. To trade on the Verra network, pass registry="verra" with the VCS provenance (vcs_project_id, serial_number, vintage, methodology) so retirements are cross-referenceable on registry.verra.org.

  • list_projectsFree

    List all registered restoration projects with their metadata.

  • net_positionFree

    Buyer's carbon position: emitted (from agent-compute-ledger) minus retired. carbon_accountable == true when fully offset.

  • project_fundingFree

    Supply-side disbursement ledger: how much each restoration project has earned from retirements and is owed (gross_proceeds_minor + retired_g). Pass a project_id for one project, else all. Read-only — the CEO settles the actual payout. This is what makes the clearinghouse fund restoration.

  • register_projectFree

    Register a VERIFIED restoration project so retirements against its credits can be funded. verification_ref (D-Score / land-verification / registry id) is required — only verified conservation is funded. project_id is immutable once registered.

  • settlement_batchFree

    Read-only cash-settlement summary for a buyer: the list + exact sums (purchases, mass_g, cost_minor) of their retirements, optionally since an ISO-8601 timestamp — the statement a human settles in one transfer.

  • verify_certificateFree

    Verify an offset certificate: recompute its hash and check the ledger.

  • verify_disbursementFree

    Recompute the disbursement certificate hash chain and confirm whole-book conservation of disbursed proceeds. Any party can audit disbursements.

  • verify_retirementFree

    x402-C C4 check: confirm a retirement (offset_ref = purchase_id) actually retires at least required_g grams of verified conservation credit — the check that lets a carbon receipt's neutrality claim be honored. Returns covered / retired_g / shortfall_g and the backing credits. Read-only.

  • verra_retirement_recordFree

    Generate the Verra-portal-ready retirement record(s) for a retirement made against Verra supply — VCS project id, serial, vintage, methodology, quantity (tCO2e), beneficiary, and the registry.verra.org cross-reference. Read-only. Submit these under the Viridis Verra account to finalize the on-registry retirement (portal today; auto-posts when Verra's transaction API is live).

  • verra_supplyFree

    The tradeable Verra VCS book: verified credits carrying genuine Verra provenance (project id + serial + vintage), cross-referenceable on registry.verra.org. Read-only. Every retirement nets the project 85% and Viridis the 15% marketplace take.

Public scan report

scanner v0.1.10 · 2026-10-16 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 281ms20/20
  • Tool poisoning19 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 3 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 Offset Clearinghouse 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
19
the typical AI and agents server has 6
Tools that change things
16%
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
17 ms
faster than 99% of 2,331 AI and agents servers

What its tools let an agent do: 13 read · 2 create · 4 change

Install Agent Offset Clearinghouse in Claude Code, Cursor or VS Code

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

What the publisher says

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

Viridis Security — agent security MCP services

Security checks agents can call, with evidence their operators can verify. Start with MCP manifest preflight, bounded source-pattern checks and injection screening. Viridis hosts the services; this repository provides integration clients, schemas, examples and selected reference implementations.

Start with agent security · Connect your agent · Verify assessment evidence · Other Fleet services

Start with a hosted service

within your budget. Connecting and discovering tools do not authorize payment.

  1. Choose a service from the live service catalog.
  2. Add its specific MCP endpoint to a client supporting Streamable HTTP.
  3. Inspect the tool inputs and payment terms, then authorize a paid request

For example, connect to Security Preflight to check supplied MCP manifests and authority policies:

{
  "mcpServers": {
    "viridis-security-preflight": {
      "type": "streamable-http",
      "url": "https://mcp.viridis-security.com/security-preflight/mcp"
    }
  }
}

This is a static assessment of supplied material; it does not test your deployed runtime. A client needs separate x402 payment support to complete a paid call. The connection guide explains discovery, quoting, and the buyer walkthrough. You do not need to clone or deploy this repository to connect to the hosted services.

Hosted service and public code

The repository includes the original manifest Security Preflight reference, Hive and Agent Market implementation files, and reference gateway code. It is not a complete self-hosted distribution of the production fleet. Most deterministic agent cores remain private. Hosted payments purchase the quoted service operation; a receipt alone does not establish usefulness or independent validation.

Paid operations and examples

Autonomous agent services — x402/USDC on Base, no signup. Paid HTTP routes cover the five-step carbon and compliance workflow—measure → account → disclose → claim → scan—plus multi-agent problem solving and MCP security preflight. Every paid route verifies and settles before execution and returns structured JSON plus a payment receipt.

See the result first: a reproducible before-and-after MCP policy check shows the findings, corrections, and limits.

Integrate one real workflow: the operator pilot guide connects the free example, a capped assessment, verified release checks and buyer-chosen feedback. It also explains how to request a recurring service scope when your workflow needs managed operation.

Start with Security Preflight: inspect a free quote for the example, then replace it with your own MCP manifest and policy. No wallet is loaded and no payment is made by this command.

python3 scripts/viridis_preflight_buy.py \
  --inputs examples/security-preflight-inputs.json

Shortened. The full README is on GitHub.

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

Agent Offset Clearinghouse: common questions

Is Agent Offset Clearinghouse MCP server safe?
Mostly: it is graded B (81/100). Read the Agent Offset Clearinghouse safety report
How do I install Agent Offset Clearinghouse?
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 Offset Clearinghouse need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Agent Offset Clearinghouse maintained?
The last commit was 19 days ago (2026-10-16). The latest release is v0.6.0.
Is Agent Offset Clearinghouse 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 Offset Clearinghouse?
Servers from other publishers that do the same job: Grandet MCP server.
How does Agent Offset Clearinghouse compare with other AI and agents MCP servers?
safety score 81/100 (higher than 63% of 4,460 AI and agents servers); tools 19 (the typical AI and agents server has 6); tools that change things 16% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Agent Offset Clearinghouse

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

  • Grandet
    Cheapest API for any model across official, inference and relay providers; find free credits
    A

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