taxcredit-engine
Auditable deterministic US clean-energy tax-credit scenarios for 45Q, 45V, 45Y, 48E, and 45X.
What it can do
- Calculate Tax Credit: 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 indeterm
- List Rule Packs: List supported credits and the current bundled rule-pack digest.
- Get Rule Pack: Return the bundled rules and official source metadata for one credit.
What data it sees
Do you need an account
No: the server works without sign-in
Auditable deterministic US clean-energy tax-credit scenarios for 45Q, 45V, 45Y, 48E, and 45X. Versioned IRS rule packs, exact arithmetic, eligibility flags, audit hashes, and notary-ready proof.
Try it (copy-paste): calculate_tax_credit with {"credit":"45V","facts":{"tax_year":2026,"kg_hydrogen":"1000","lifecycle_kg_co2e_per_kg_h2":"0.44","greet_version":"45VH2-GREET-2025","pwa_met":true,"produced_in_us":true,...}} → returns credit_amount_usd: "3280.00" with a reproducible audit_sha256.
Pricing: 10 free calls/day, then $2.00/calculation. Pay as a human via Stripe (create_payment → redeem_payment) or as an agent via x402 escrow: fund an escrow payable to viridis:taxcredit-engine at mcp.viridisconservation.com/escrow/mcp, then retry with payment_ref=. The 402 envelope carries full instructions.
Server tool list (5)
Raw names from tools/list. Only developers need these.
| calculate_tax_credit | 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. |
| list_rule_packs | List supported credits and the current bundled rule-pack digest. |
| get_rule_pack | Return the bundled rules and official source metadata for one credit. |
| verify_tax_credit_result | Verify an engine result's audit_sha256. Pass the prior result object as JSON; any changed amount, fact, rule step, or source digest fails. |
| describe_agent | Return fleet-standard capabilities, version, and pricing. |