IntelliCore Tax Engine

v1.1.0TY2025 ReadyAPI Docs →

System Health

IntelliCore Tax Engine

Tax computation API — current for tax year 2025, including the latest provisions and inflation-adjusted figures. Authenticate with an API key to start computing returns.

Full docs

API Endpoints

Method	Path	Description	Auth
POST	/api/tax/sessions	Create a new tax session	API Key
GET	/api/tax/sessions	List all sessions for user	API Key
GET	/api/tax/sessions/:id	Get session details	API Key
DELETE	/api/tax/sessions/:id	Delete a session	API Key
POST	/api/tax/sessions/:id/facts	Set writable facts	API Key
PUT	/api/tax/sessions/:id/facts	Read specific facts	API Key
POST	/api/tax/sessions/:id/calculate	Run tax computation	API Key
POST	/api/tax/sessions/:id/explain	Explain a calculation	API Key
GET	/api/tax/sessions/:id/validate	Validate return	API Key
GET	/api/tax/schema	Browse fact paths	API Key
GET	/api/health	Health check	Public
POST	/api/inngest	Inngest webhook	Inngest

Workflow Orchestration

Inngest Functions

/api/inngest

compute-tax-return

concurrency: 10retries: 2

tax/compute.requested-- Hydrate engine, set facts, compute, persist results

validate-tax-return

retries: 1

tax/validate.requested-- Validate all facts against tax rule constraints

batch-compute-tax-returns

concurrency: 5retries: 1

tax/batch-compute.requested-- Recompute multiple sessions in parallel

MCP Server Tools

MCP Tools

pnpm mcp:start

create_tax_sessionStart a new tax return session

set_tax_factsSet taxpayer input values on a session

get_tax_factsRead computed or input fact values

calculate_taxRun full tax computation engine

explain_tax_calculationShow computation tree for a derived value

validate_tax_returnCheck for validation errors and constraint violations

search_tax_schemaDiscover available fact paths by keyword

list_tax_sessionsList all existing tax sessions