generated: '2026-07-22'
method: derived
source: graphql/deutsche-boerse-eurex-t7-reference-data.graphql (live introspection
  2026-07-22) + openapi/ (A7 production bundle) + mcp/deutsche-boerse-mcp.yml
notes: Deutsche Börse publishes no MCP server, so the MCP surface here is the
  derived candidate in mcp/deutsche-boerse-mcp.yml (1:1 with REST operationIds).
  The real cross-surface divergence is REST vs GraphQL - the Eurex T7 reference
  data GraphQL API (product/contract level, live schema introspected with the
  published shared key) overlaps but does not coincide with the A7 REST reference
  data APIs (T7 message-level RDI / CME SD). Bindings below map GraphQL query
  fields to their nearest REST operations; confidence reflects that the two
  surfaces model different levels of the same T7 data core.
surfaces:
  openapi:
    path: openapi/
    gated: false
    note: 18 refined per-tag OpenAPI specs; live calls require an A7 subscription
      Bearer token.
  graphql:
    endpoint: https://api.developer.deutsche-boerse.com/eurex-prod-graphql/
    gated: false
    note: Introspection open with the published shared X-DBP-APIKEY (rate limited);
      anonymous requests get 401. Full SDL harvested to graphql/.
  mcp:
    url: null
    gated: null
    note: No hosted MCP server; candidate tool list derived from OpenAPI.
crosswalk:
- tool: ProductInfos
  category: reference-data
  rest: [getMarketSegments, getMarketSegmentDetails]
  binding: graphql
  confidence: medium
  note: Eurex products correspond to T7 market segments served by the A7 RDI API,
    but GraphQL returns product master data while RDI returns dated per-venue
    segment reference data.
- tool: Contracts
  category: reference-data
  rest: [getSecurities, getSecurityDetails]
  binding: graphql
  confidence: medium
  note: Eurex contracts correspond to T7 securities/instruments in the A7 RDI API;
    field sets differ (contract attributes vs RDI message-level detail).
- tool: Expirations
  category: reference-data
  rest: [getSecurities]
  binding: graphql
  confidence: low
  note: Expiration lists are derivable from RDI security reference data but have
    no dedicated REST operation.
graphql_only:
- tool: Holidays
  reason: Trading calendar data; no A7 REST operation.
- tool: TradingHours
  reason: Trading hours per product; no A7 REST operation.
- tool: SettlementPrices
  reason: Daily settlement prices; A7 serves order-by-order market data, not
    settlement price reference.
- tool: VendorCodes
  reason: Vendor code mappings; no REST equivalent.
- tool: TickRules
  reason: Tick size rules; no dedicated REST equivalent.
- tool: Changelog
  reason: Reference-data change feed unique to the GraphQL API.
- tool: DeliverableBonds
  reason: Deliverable bond baskets for fixed-income futures; no REST equivalent.
- tool: TESProfiles
  reason: T7 Entry Service profiles; no REST equivalent.
- tool: EnlightResponders
  reason: Eurex EnLight responder data; no REST equivalent.
- tool: Enlight
  reason: Eurex EnLight reference data; no REST equivalent.
- tool: FlexibleContracts
  reason: Flexible contract series; no REST equivalent.
rest_only:
- capability: Historical order books, EOBI/MDP order-by-order messages, auction
    simulations, algo/precalc/dataset management, market insights, option analytics
  operations: [getOrderbookT7, getOrderbookCME, getMessageDetails, getTransactTimes,
    getAuctions, addAlgo, runAlgo, addPrecalcData, queryDatasetResults, queryInsights,
    getOPT, getIV, getRolls]
  note: The A7 Analytics Platform surface (96 operations) has no GraphQL or MCP
    counterpart.
coverage:
  graphql_query_fields: 14
  graphql_bound_to_rest: 3
  graphql_only: 11
  rest_operations_total: 96
  rest_operations_with_graphql_counterpart: 5
  mcp_tools_published: 0
  mcp_tools_candidate: 96