> ## Documentation Index > Fetch the complete documentation index at: https://docs.nylon.dev/llms.txt > Use this file to discover all available pages before exploring further. # List connectable networks > See which networks this account can connect, and the URL each connection starts at. ## OpenAPI ````yaml /openapi.yaml get /v1/connections openapi: 3.1.0 info: title: Nylon API version: 1.0.0 description: | One API for publishing to twelve social networks. You address a post to connected profile ids; Nylon knows which network each one belongs to, what that network accepts, and how to get the media there. Character limits, media specs, upload protocols and threading rules are normalised before the request reaches a platform, and every failure comes back in one error taxonomy. ## Conventions - Request and response fields are `snake_case`. - Successful responses wrap the payload in `data`. List responses add `meta.pagination`. - Failures return `{ "error": { "code", "message", "details?" } }`. Branch on `code`; `message` is written for humans and may change. - Times are ISO 8601 with a `Z` offset. - Successful responses carry `RateLimit-Limit`, `RateLimit-Remaining` and `RateLimit-Reset`. A `429` carries those plus `Retry-After`. servers: - url: https://api.nylon.dev description: Production security: - bearerAuth: [] tags: - name: Posts description: Create, schedule, inspect, edit and retry posts. - name: Profiles description: Social profiles connected to the authenticated Nylon account. - name: Connections description: Start a connection and see which networks are available. - name: Networks description: What each network accepts, as data. - name: Validation description: Dry-run a post without publishing it. - name: Webhooks description: Endpoints Nylon calls when a post finishes or a profile stops working. paths: /v1/connections: get: tags: - Connections summary: List connectable networks description: | Which networks this account can connect right now, and where each one starts. Availability is computed from real app credentials — Nylon's own, or your own under [BYOK](/byok) — rather than a static list, because offering a network whose credentials are missing produces a redirect that dead-ends. operationId: listConnections responses: '200': description: Every network, with its availability. content: application/json: schema: $ref: '#/components/schemas/ConnectionListResponse' examples: success: value: data: - network: instagram label: Instagram available: true connect_url: >- https://www.app.nylon.dev/api/connections/oauth/meta/start?network=instagram flow: oauth_redirect - network: bluesky label: Bluesky available: true connect_url: https://www.app.nylon.dev/connections?connect=bluesky flow: nylon_ui - network: tiktok label: TikTok available: false '401': $ref: '#/components/responses/Unauthorized' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' components: schemas: ConnectionListResponse: type: object required: - data properties: data: type: array items: $ref: '#/components/schemas/ConnectionOption' ConnectionOption: type: object required: - network - label - available properties: network: $ref: '#/components/schemas/Network' label: type: string example: Instagram available: type: boolean description: Whether credentials exist for this network on this account. connect_url: type: string format: uri description: Present only when `available` is true. flow: $ref: '#/components/schemas/ConnectFlow' ErrorResponse: type: object required: - error properties: error: $ref: '#/components/schemas/Error' Network: type: string description: A network Nylon publishes to. enum: - facebook - instagram - x - linkedin - pinterest - bluesky - threads - tiktok - youtube - google_business - mastodon - discord example: instagram ConnectFlow: type: string description: | `oauth_redirect` opens the provider's consent screen directly. `nylon_ui` opens Nylon, because the network needs something typed in first — an app password for Bluesky, a server for Mastodon. enum: - oauth_redirect - nylon_ui example: oauth_redirect Error: type: object required: - code - message properties: code: type: string description: The stable identifier to branch on. enum: - invalid_request - unauthorized - payment_required - forbidden - not_found - conflict - rate_limited - unsupported - publish_failed - internal_error example: unauthorized message: type: string description: Written for humans. Do not match on it. example: A valid Nylon API key is required. details: type: array description: Present when the failure has a per-field or per-network breakdown. items: $ref: '#/components/schemas/ErrorDetail' ErrorDetail: type: object required: - message properties: field: type: string description: The request field the problem is about. example: profile_ids network: type: string description: The network the problem is about. example: instagram code: type: string description: | Machine-readable identifier for this problem. On a per-network detail this is a publishing code: `invalid_request`, `unsupported`, `media_error`, `reauthentication_required`, `rejected_by_network`, `network_error`, `timeout`, `profile_unavailable` or `internal_error`. example: invalid_request message: type: string example: >- Instagram requires at least 1 media item — text-only posts are not supported. responses: Unauthorized: description: The bearer API key is missing, malformed or revoked. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: missingKey: value: error: code: unauthorized message: A valid Nylon API key is required. RateLimited: description: | Too many requests for this API key. Reads allow 120 requests a minute; publishing endpoints allow 30, because each one costs real upstream calls. The limit is per key, not per IP. headers: Retry-After: $ref: '#/components/headers/RetryAfter' RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: throttled: value: error: code: rate_limited message: Too many requests. Retry after the window resets. InternalError: description: Nylon encountered an unexpected error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' headers: RetryAfter: description: Seconds to wait before retrying. schema: type: integer example: 47 RateLimitLimit: description: Requests allowed in the current window. schema: type: integer example: 120 RateLimitRemaining: description: Requests left in the current window. schema: type: integer example: 119 RateLimitReset: description: Seconds until the window resets. schema: type: integer example: 47 securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: Nylon API key description: An API key beginning with `nylon_live_`. ````