MCP.Market

Taxcredit Engine MCP server

online · 100% uptime
by jdhart81·io.github.jdhart81/taxcredit-engine·v0.1.0
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Auditable US clean-energy tax-credit scenarios for 45Q, 45V, 45Y, 48E, and 45X.

A91/100grade A
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Safety scan
A91/100

full report

Adoption
New

0 stars

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

Taxcredit Engine tools (5)

write = sends, deletes, buys or posts
  • calculate_tax_creditFree

    Calculate an auditable tax-credit scenario. credit is 45Q, 45V, 45Y, 48E, or 45X. facts must contain the explicit credit-specific eligibility facts; missing facts return indeterminate. This is not tax or filing advice. Price: $2.00 per call after 10 free calls/day. Pay at /x402/taxcredit-engine/calculate_tax_credit with Base USDC, cash-fund payment_ref through escrow_checkout + confirm_escrow_funding, or use /seats.

  • describe_agentFree

    Return fleet-standard capabilities, version, and pricing.

  • get_rule_packFree

    Return the bundled rules and official source metadata for one credit.

  • list_rule_packsFree

    List supported credits and the current bundled rule-pack digest.

  • verify_tax_credit_resultFree

    Verify an engine result's audit_sha256. Pass the prior result object as JSON; any changed amount, fact, rule step, or source digest fails.

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 763ms20/20
  • Tool poisoning5 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 Taxcredit Engine compares

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

Safety score
91/100
higher than 85% of 48,255 servers
Tools
5
the typical server has 7
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 server answers 100%
Response time
60 ms
faster than 91% of 30,031 servers

What its tools let an agent do: 5 read

Install Taxcredit Engine in Claude Code, Cursor or VS Code

claude mcp add --transport http taxcredit-engine https://mcp.viridisconservation.com/taxcredit-engine/mcp
Add to Cursor

What the publisher says

From the Taxcredit Engine 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.

Taxcredit Engine: common questions

Is Taxcredit Engine MCP server safe?
Yes, by our scan: it is graded A (91/100). Read the Taxcredit Engine safety report
How do I install Taxcredit Engine?
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 Taxcredit Engine need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Taxcredit Engine maintained?
The last commit was 39 days ago (2026-09-26). The latest release is v0.1.0.
Is Taxcredit Engine up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Taxcredit Engine compare with other MCP servers?
safety score 91/100 (higher than 85% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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