API cookbook

GraphQL: pricing + drill-down in one call

GraphQL shines when you want the quotes and the per-rule trace from a single round-trip. Schema introspection works against /graphql.

RTBy RateStack TeamPublished2026-03-22Reviewed2026-03-22

intermediateGraphQL · TypeScript

query Price($input: LoanInput!) {
  pricing(input: $input, mode: BEST_EX) {
    quotes {
      id
      investorName
      productCode
      noteRate
      basePrice
      finalPrice
      ratesheetVersion
      adjustments {
        ruleId
        description
        condition
        combineStrategy
        amount
        runningCumulative
      }
    }
    correlationId
  }
}

One round-trip; the trace is part of the same response object. Useful when your front-end wants to render the drill-down without a second call.

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