generated: '2026-07-23'
method: derived
source: mcp/fifth-third-bancorp-mcp.yml + openapi/newline-platform-api.json
notes: >-
  Binds each Newline MCP tool to its backing Newline Platform API operation. The
  OpenAPI declares no operationIds, so REST operations are referenced by method +
  path (verified verbatim in the spec). The MCP surface is read-heavy: it exposes
  list/get across every resource plus three write tools, and omits most REST
  writes (customer create/update/archive, transfer cancel, transaction authorize,
  VRN lifecycle, returns create, mock transactions). Two MCP tools
  (customer-activities) have no public REST operation in the OpenAPI.
surfaces:
  openapi: openapi/newline-platform-api.json
  graphql: null
  mcp:
    url: git+https://github.com/newline53/newline-mcp-server
    transport: stdio
    gated: true
    note: live tools/list requires the stdio server with HMAC credentials; mapped by source + name
crosswalk:
  - {tool: list-customers, category: customers, rest: ["GET /customers"], binding: rest, confidence: high}
  - {tool: get-customer, category: customers, rest: ["GET /customers/{uid}"], binding: rest, confidence: high}
  - {tool: list-customer-products, category: customer-products, rest: ["GET /customer_products"], binding: rest, confidence: high}
  - {tool: get-customer-product, category: customer-products, rest: ["GET /customer_products/{uid}"], binding: rest, confidence: high}
  - {tool: list-products, category: products, rest: ["GET /products"], binding: rest, confidence: high}
  - {tool: get-product, category: products, rest: ["GET /products/{uid}"], binding: rest, confidence: high}
  - {tool: list-pools, category: pools, rest: ["GET /pools"], binding: rest, confidence: high}
  - {tool: get-pool, category: pools, rest: ["GET /pools/{uid}"], binding: rest, confidence: high}
  - {tool: get-synthetic-account-types, category: synthetic-accounts, rest: ["GET /synthetic_account_types"], binding: rest, confidence: high}
  - {tool: get-synthetic-accounts, category: synthetic-accounts, rest: ["GET /synthetic_accounts"], binding: rest, confidence: high}
  - {tool: get-synthetic-account, category: synthetic-accounts, rest: ["GET /synthetic_accounts/{uid}"], binding: rest, confidence: high}
  - {tool: create-synthetic-account, category: synthetic-accounts, rest: ["POST /synthetic_accounts"], binding: rest, confidence: high}
  - {tool: delete-synthetic-accounts, category: synthetic-accounts, rest: ["DELETE /synthetic_accounts/{uid}"], binding: rest, confidence: high}
  - {tool: list-synthetic-line-items, category: transactions, rest: ["GET /synthetic_line_items"], binding: rest, confidence: high}
  - {tool: get-synthetic-line-item, category: transactions, rest: ["GET /synthetic_line_items/{uid}"], binding: rest, confidence: high}
  - {tool: list-custodial-accounts, category: custodial-accounts, rest: ["GET /custodial_accounts"], binding: rest, confidence: high}
  - {tool: get-custodial-account, category: custodial-accounts, rest: ["GET /custodial_accounts/{uid}"], binding: rest, confidence: high}
  - {tool: list-custodial-line-items, category: transactions, rest: ["GET /custodial_line_items"], binding: rest, confidence: high}
  - {tool: get-custodial-line-item, category: transactions, rest: ["GET /custodial_line_items/{uid}"], binding: rest, confidence: high}
  - {tool: list-newline-transfers, category: transfers, rest: ["GET /transfers"], binding: rest, confidence: high}
  - {tool: get-newline-transfer, category: transfers, rest: ["GET /transfers/{uid}"], binding: rest, confidence: high}
  - {tool: create-newline-transfer, category: transfers, rest: ["POST /transfers"], binding: rest, confidence: high, note: write tool; supports wire/ACH/instant-payment}
  - {tool: list-combined-transfers, category: transfers, rest: ["GET /combined_transfers"], binding: rest, confidence: high}
  - {tool: get-combined-transfer, category: transfers, rest: ["GET /combined_transfers/{uid}"], binding: rest, confidence: high}
  - {tool: list-transactions, category: transactions, rest: ["GET /transactions"], binding: rest, confidence: high}
  - {tool: get-transaction, category: transactions, rest: ["GET /transactions/{uid}"], binding: rest, confidence: high}
  - {tool: list-transaction-events, category: transactions, rest: ["GET /transaction_events"], binding: rest, confidence: high}
  - {tool: get-transaction-event, category: transactions, rest: ["GET /transaction_events/{uid}"], binding: rest, confidence: high}
  - {tool: list-returns, category: returns, rest: ["GET /returns"], binding: rest, confidence: high}
  - {tool: get-return, category: returns, rest: ["GET /returns/{uid}"], binding: rest, confidence: high}
  - {tool: list-virtual-reference-numbers, category: vrn, rest: ["GET /virtual_reference_numbers"], binding: rest, confidence: high}
  - {tool: get-virtual-reference-number, category: vrn, rest: ["GET /virtual_reference_numbers/{uid}"], binding: rest, confidence: high}
mcp_only:
  - {tool: list-customer-activities, reason: no /customer_activities path in the published OpenAPI}
  - {tool: get-customer-activity, reason: no /customer_activities path in the published OpenAPI}
rest_only:
  auth:
    - POST /auth
  customers (write):
    - POST /customers
    - PUT /customers/{uid}
    - DELETE /customers/{uid}
  customer-products (write):
    - POST /customer_products
  synthetic-accounts (write/detail):
    - PUT /synthetic_accounts/{uid}
    - GET /synthetic_account_types/{uid}
  closing-balances:
    - GET /custodial_account_closing_balances
    - GET /custodial_account_closing_balances/{uid}
    - GET /synthetic_account_closing_balances
    - GET /synthetic_account_closing_balances/{uid}
  transfers (write):
    - PUT /transfers/{uid}/cancel
    - POST /combined_transfers
  transactions (write):
    - PUT /transactions/{uid}/authorize
  vrn (write):
    - POST /virtual_reference_numbers
    - PUT /virtual_reference_numbers/{uid}
    - DELETE /virtual_reference_numbers/{uid}
    - PUT /virtual_reference_numbers/{uid}/lock
    - PUT /virtual_reference_numbers/{uid}/unlock
  returns (write):
    - POST /returns
  sandbox:
    - POST /sandbox/mock_transactions
coverage:
  tools_named: 34
  tools_bound_to_rest: 32
  mcp_only: 2
  rest_ops_total: 53
  rest_ops_with_tool: 32