> ## Documentation Index > Fetch the complete documentation index at: https://partners.ladder.africa/llms.txt > Use this file to discover all available pages before exploring further. # NGX session history > One summary per trading day (the last observation of each day), newest first. ## OpenAPI ````yaml /openapi.json get /partner/v1/market/snapshot/history openapi: 3.0.3 info: title: Ladder Partner API version: v1 description: >- Server-to-server API for licensed partner organisations: KYB, NGN/GHS/USD wallets, funding rails, investments and NGX market data, buy and sell orders, holdings and webhooks. Every request is HMAC-signed; see the Authentication guide. contact: email: partners@myladder.africa servers: - url: https://api.myladder.africa description: Production - url: https://api-dev.myladder.africa description: UAT (integration and acceptance testing) security: - LadderKey: [] LadderTimestamp: [] LadderSignature: [] tags: - name: Organisation description: The calling organisation and what KYB still needs. - name: KYB description: >- Business information, people, documents, settlement accounts and submission. - name: Wallets description: >- Balances, funding requests on every rail, direct-debit mandates and the ledger statement. - name: Investments description: What a partner can buy. - name: Market data description: >- Nigerian Exchange instruments, quotes, bars, indices, FX, calendar and disclosures. - name: Orders description: Buy and sell orders and their lifecycle. - name: Holdings description: Positions created by completed buys. - name: Webhooks description: Endpoints, deliveries and retries. - name: Sandbox description: Test-key only helpers. paths: /partner/v1/market/snapshot/history: parameters: [] get: tags: - Market data summary: NGX session history description: >- One summary per trading day (the last observation of each day), newest first. operationId: market_snapshot_history_list parameters: - name: limit in: query description: Page size, 1–200 (default 50). schema: type: integer - name: offset in: query description: Rows to skip (default 0). schema: type: integer - name: from in: query description: YYYY-MM-DD schema: type: string - name: to in: query description: YYYY-MM-DD schema: type: string responses: '200': description: '' content: application/json: schema: $ref: '#/components/schemas/PartnerSnapshotPageResponse' '400': description: Validation or business-rule error (see `error.code`). content: application/json: schema: $ref: '#/components/schemas/PartnerError' '401': description: Missing/invalid signature, stale timestamp, unknown or revoked key. content: application/json: schema: $ref: '#/components/schemas/PartnerError' '403': description: IP not allowlisted, or action not allowed for this key/environment. content: application/json: schema: $ref: '#/components/schemas/PartnerError' '429': description: Rate limited (120 requests/min per key). See `Retry-After`. content: application/json: schema: $ref: '#/components/schemas/PartnerError' components: schemas: PartnerSnapshotPageResponse: required: - data - pagination type: object properties: data: type: array items: $ref: '#/components/schemas/PartnerMarketSnapshot' pagination: $ref: '#/components/schemas/PartnerPagination' PartnerError: required: - error type: object properties: error: $ref: '#/components/schemas/PartnerErrorBody' PartnerMarketSnapshot: required: - trade_date - as_of - all_share_index - all_share_index_change - all_share_index_change_percent - all_share_index_ytd_change_percent - deals - volume - value_traded - turnover_rate - listed_securities - market_cap - breadth - session - fetched_at type: object properties: exchange: title: Exchange type: string readOnly: true trade_date: title: Trade date type: string format: date as_of: title: As of type: string format: date-time currency: title: Currency type: string readOnly: true all_share_index: title: All share index type: string format: decimal all_share_index_change: title: All share index change type: string format: decimal nullable: true all_share_index_change_percent: title: All share index change percent type: string format: decimal nullable: true all_share_index_ytd_change_percent: title: All share index ytd change percent type: string format: decimal nullable: true deals: title: Deals type: integer nullable: true volume: title: Volume type: integer nullable: true value_traded: title: Value traded type: string format: decimal nullable: true turnover_rate: title: Turnover rate type: string format: decimal nullable: true listed_securities: title: Listed securities type: integer nullable: true market_cap: $ref: '#/components/schemas/PartnerMarketSnapshotCap' breadth: $ref: '#/components/schemas/PartnerMarketSnapshotBreadth' session: $ref: '#/components/schemas/PartnerMarketSnapshotSession' fetched_at: title: Fetched at type: string format: date-time PartnerPagination: required: - limit - offset - count type: object properties: limit: title: Limit type: integer offset: title: Offset type: integer count: title: Count description: Total rows matching the filters. type: integer PartnerErrorBody: required: - code - message - details type: object properties: code: title: Code description: Stable machine-readable code, e.g. `insufficient_funds`. type: string minLength: 1 message: title: Message type: string minLength: 1 details: title: Details description: Code-specific context (validation errors, balances, …). type: object additionalProperties: type: string nullable: true PartnerMarketSnapshotCap: required: - equity - bonds - etfs - total type: object properties: equity: title: Equity type: string format: decimal nullable: true bonds: title: Bonds type: string format: decimal nullable: true etfs: title: Etfs type: string format: decimal nullable: true total: title: Total type: string format: decimal nullable: true PartnerMarketSnapshotBreadth: required: - advancers - decliners - unchanged - traded_securities type: object properties: advancers: title: Advancers type: integer nullable: true decliners: title: Decliners type: integer nullable: true unchanged: title: Unchanged type: integer nullable: true traded_securities: title: Traded securities type: integer nullable: true PartnerMarketSnapshotSession: type: object properties: open_time: title: Open time type: string readOnly: true close_time: title: Close time type: string readOnly: true timezone: title: Timezone type: string readOnly: true securitySchemes: LadderKey: type: apiKey in: header name: X-Ladder-Key description: 'Your key id: `pk_test_…` (sandbox) or `pk_live_…` (live).' LadderTimestamp: type: apiKey in: header name: X-Ladder-Timestamp description: Unix seconds, as a string; must be within 5 minutes of server time. LadderSignature: type: apiKey in: header name: X-Ladder-Signature description: >- Lower-case hex HMAC-SHA512 over timestamp, method, path+query and the SHA-256 of the body. See Authentication. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.