> ## Documentation Index > Fetch the complete documentation index at: https://docs.axle.energy/llms.txt > Use this file to discover all available pages before exploring further. # Add site boundary meter consent > Add boundary meter consent for a site. Confirm that the site has consented for Axle to retrieve its boundary meter readings. This is required for participation in the wholesale market for assets that do not have CoP11 approval, but may also be provided via other endpoints (e.g. during site onboarding). Returns the updated site details with the new consent timestamp. ## OpenAPI ````yaml POST /entities/site/{site_id}/meter-consent openapi: 3.1.0 info: title: Axle API Docs description: >- For full documentation please see our official docs at docs.axle.energy version: 1.4.6 servers: - url: https://api-sandbox.axle.energy security: [] tags: - name: 1. Authentication description: Authenticate yourself with the Axle API - name: 2. Meters description: Find key info about your sites - name: 3. Sites description: Register your sites with Axle; configure market participation - name: 4. Assets description: Register your assets with Axle - name: 5. Data description: Send asset metrics to Axle, for analysis and optimisation purposes - name: 6. Rewards description: >- Determine how much your users have earned by participating with Axle; allow balance withdrawal - name: 7. Validation description: Validate structured data against Axle's rules - name: 8. Examples description: Get example data for testing paths: /entities/site/{site_id}/meter-consent: post: tags: - 3. Sites summary: Add Site Meter Consent description: >- Add boundary meter consent for a site. Confirm that the site has consented for Axle to retrieve its boundary meter readings. This is required for participation in the wholesale market for assets that do not have CoP11 approval, but may also be provided via other endpoints (e.g. during site onboarding). Returns the updated site details with the new consent timestamp. operationId: add_site_meter_consent_entities_site__site_id__meter_consent_post parameters: - required: true schema: type: string format: uuid title: Site Id name: site_id in: path requestBody: content: application/json: schema: $ref: '#/components/schemas/SiteMeterConsentRequest' required: true responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/SiteResponse' '400': description: Invalid request '404': description: Site not found or not authorized to access '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '500': description: Internal server error security: - OAuth2PasswordBearer: [] components: schemas: SiteMeterConsentRequest: properties: gave_boundary_meter_consent_at: type: string format: date-time title: Gave Boundary Meter Consent At description: >- Timezone-aware ISO 8601 timestamp (e.g. '2026-01-01T12:34:56Z') indicating when the household gave consent for Axle to access readings from their boundary meter, if consent was given. type: object required: - gave_boundary_meter_consent_at title: SiteMeterConsentRequest description: Request model for adding boundary meter consent for a site. SiteResponse: properties: id: type: string format: uuid title: Id description: Axle's internal UUID for the site mpan: type: string title: Mpan description: Meter Point Administration Number for the site postcode: type: string title: Postcode description: UK postcode for the site address: type: string title: Address description: Full address for the site asset_ids: items: type: string format: uuid type: array title: Asset Ids description: List of asset IDs associated with this site default: [] markets: items: $ref: '#/components/schemas/MarketResponse' type: array uniqueItems: true description: Markets the site is participating in dispatch_methods: items: $ref: '#/components/schemas/DispatchMethodResponse' type: array uniqueItems: true description: Dispatch methods allowed for the site tariff: allOf: - $ref: '#/components/schemas/TariffResponse' title: Tariff description: Tariff information for the site gave_boundary_meter_consent_at: type: string format: date-time title: Gave Boundary Meter Consent At description: Timestamp when boundary meter consent was given type: object required: - id title: SiteResponse description: Response model for site information. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError MarketResponse: type: string enum: - cm - dfs - dno - lcm - sffr - wholesale title: MarketResponse description: |- Market types available for participation. - CM: Capacity Market - DFS: Dynamic Frequency Service - DNO: Distribution Network Operator flexibility services - LCM: Local Capacity Market - SFFR: Static Firm Frequency Response - WHOLESALE: Wholesale energy market DispatchMethodResponse: type: string enum: - cm_infrequent_dispatch - full_asset_schedule_control - limited_pause - vpp_limited_control title: DispatchMethodResponse description: Axle propositions that a site can enrol into. TariffResponse: properties: tariff_type: allOf: - $ref: '#/components/schemas/TariffType' description: Type of tariff tariff_cheap_start_time: type: string format: time title: Tariff Cheap Start Time description: Start time for off-peak/cheap rate period tariff_cheap_end_time: type: string format: time title: Tariff Cheap End Time description: End time for off-peak/cheap rate period type: object title: TariffResponse description: Response model for tariff information. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError TariffType: type: string enum: - single_rate - dual_rate - dynamic - smart - unknown title: TariffType description: An enumeration. securitySchemes: OAuth2PasswordBearer: type: oauth2 flows: password: scopes: {} tokenUrl: auth/token-form ````