> ## Documentation Index > Fetch the complete documentation index at: https://docs.mcpjam.com/llms.txt > Use this file to discover all available pages before exploring further. # Get a plugin version > One imported plugin version with its component projections: declared MCP servers (placement, auth timing, materialized server id) and declared skills (namespaced model refs). Addressed by the version id alone — access is membership of the version's own project, and historical versions of uninstalled plugins stay readable because eval snapshots and stale environment pins reference them. ## OpenAPI ````yaml /reference/openapi.json get /plugin-versions/{pluginVersionId} openapi: 3.1.0 info: title: MCPJam API version: 1.0.0-preview description: >- Programmatic access to MCP servers saved in your MCPJam projects — live diagnostics (validate, inspect, export) and operations: call tools, render prompts, run eval suites asynchronously and poll their results, and import OAuth tokens. **The API is in preview**: the surface may change while we finish the design. Error `code` values are stable; error `message` strings are not. Write clients that ignore unknown response fields. contact: name: MCPJam url: https://github.com/MCPJam/inspector/issues servers: - url: https://app.mcpjam.com/api/v1 description: Hosted MCPJam security: - bearerAuth: [] tags: - name: Hosts description: >- Project hosts: named model + capability profiles you run chats and eval suites against. - name: Environments description: >- Project environments: named, live-editable execution bundles (one host, an optional standalone server group, optionally pinned skills and plugin versions) that eval suites and journeys run against. Distinct from Sandbox images, which are Computer base images. Reads require project membership; every write requires project admin. - name: Plugins description: >- Agent Plugins imported into a project — read-only inventory and version detail. - name: Sandbox images description: >- Custom Computer images: a digest-pinned Dockerfile built into an immutable image your project's computers boot from. - name: Server diagnostics description: Connect-level health checks against a saved MCP server. - name: Primitives description: 'The server''s MCP primitives: tools, prompts, and resources.' - name: Export description: Full-server snapshots for diffing and CI. - name: Execution description: 'Run the server''s primitives: call tools, render prompts.' - name: Eval runs description: >- Asynchronous eval suite runs: create with 202, poll status, iterations, and traces. - name: OAuth description: 'Bring-your-own OAuth: import externally obtained tokens for a server.' - name: Chatboxes description: >- Read-only access to the chatboxes published from a project: listing, settings, attached servers, and share links. - name: Catalog description: >- Discover the resources the other routes operate on: your account, projects, servers, eval suites, and chat sessions. - name: Tunnels description: >- Relay tunnels that expose local MCP servers through a public URL, registered as first-class project servers (the `mcpjam tunnel` CLI flow). - name: Agent description: >- Headless agent turns over the public API: send a message history, the server runs one assistant turn with project-scoped workspace tools (eval reads + suite creation) on a pinned hosted model, and returns the reply plus created-resource references. paths: /plugin-versions/{pluginVersionId}: get: tags: - Plugins summary: Get a plugin version description: >- One imported plugin version with its component projections: declared MCP servers (placement, auth timing, materialized server id) and declared skills (namespaced model refs). Addressed by the version id alone — access is membership of the version's own project, and historical versions of uninstalled plugins stay readable because eval snapshots and stale environment pins reference them. operationId: getPluginVersion parameters: - name: pluginVersionId in: path required: true description: >- A plugin's `activeVersionId` from the list endpoint, or a pinned id from an environment's `pluginVersionIds`. schema: type: string responses: '200': description: The plugin version. content: application/json: schema: $ref: '#/components/schemas/PluginVersion' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': $ref: '#/components/responses/NotFound' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' '502': $ref: '#/components/responses/ServerUnreachable' components: schemas: PluginVersion: type: object description: One immutable imported plugin version with its component projections. required: - id - pluginId - bundleHash - status - componentCounts - servers - skills - createdAt properties: id: type: string pluginId: type: string declaredVersion: type: string description: '`manifest.version` — metadata only; `bundleHash` is the identity.' bundleHash: type: string manifestHash: type: string status: type: string enum: - staging - ready - invalid description: Only `ready` versions resolve at runtime. componentCounts: type: object description: >- Per-component tallies. `apps` counts preserved `.app.json` metadata entries only (no runtime effect). required: - skills - servers - apps - assets - unsupported properties: skills: type: number servers: type: number apps: type: number assets: type: number unsupported: type: number servers: type: array description: >- Declared MCP server components, with the project server row each one materialized as. items: type: object required: - componentId - componentKey - declaredName - placement - authenticationPolicy - materializedServerId properties: componentId: type: string componentKey: type: string declaredName: type: string placement: type: string enum: - remote - local - computer description: >- Where the component can execute; `local`/`computer` components never run on MCPJam hosted servers. authenticationPolicy: type: string enum: - on_install - on_use materializedServerId: type: string skills: type: array description: >- Declared skill components, with the project skill row each one materialized as. items: type: object required: - componentId - componentKey - declaredName - modelRef - materializedSkillId properties: componentId: type: string componentKey: type: string declaredName: type: string modelRef: type: string description: >- Namespaced model-facing reference: `/`. materializedSkillId: type: string createdAt: type: number readyAt: type: number Error: type: object required: - code - message properties: code: type: string description: >- Stable, machine-readable error code. New codes may be added over time; treat unknown codes as non-retryable failures unless the HTTP status says otherwise. enum: - UNAUTHORIZED - FORBIDDEN - NOT_FOUND - CONFLICT - VALIDATION_ERROR - RATE_LIMITED - FEATURE_NOT_SUPPORTED - SERVER_UNREACHABLE - TIMEOUT - OAUTH_REQUIRED - INTERNAL_ERROR message: type: string description: >- Human-readable description. May change between releases — don't match on it. details: type: object description: Optional, unstructured context bag. additionalProperties: true responses: Unauthorized: description: >- Missing, invalid, revoked, or orphaned key (`UNAUTHORIZED`) — or the **target MCP server** needs an OAuth grant (`OAUTH_REQUIRED`), which is a property of the server, not your key. content: application/json: schema: $ref: '#/components/schemas/Error' examples: badKey: summary: Invalid or revoked key value: code: UNAUTHORIZED message: Invalid API key oauthRequired: summary: Target server needs an OAuth grant value: code: OAUTH_REQUIRED message: Server requires OAuth authorization Forbidden: description: Key is valid but not allowed to do this. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: FORBIDDEN message: You do not have access to this project NotFound: description: Unknown project, server, or resource. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: NOT_FOUND message: Server not found RateLimited: description: >- Per-key rate limit exceeded (60 requests/minute sustained, bursts up to 10). Honor `Retry-After` and back off with jitter. headers: Retry-After: description: Seconds to wait before retrying. schema: type: integer content: application/json: schema: $ref: '#/components/schemas/Error' example: code: RATE_LIMITED message: API key rate limit exceeded. Slow down and retry. InternalError: description: Something failed on MCPJam's side. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: INTERNAL_ERROR message: Unexpected internal error ServerUnreachable: description: Could not connect to the target MCP server. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: SERVER_UNREACHABLE message: Failed to connect to server securitySchemes: bearerAuth: type: http scheme: bearer description: >- MCPJam API key (`sk_…`). Create one at [Settings → API keys](https://app.mcpjam.com/settings/api-keys). Guest sessions cannot use the API, and API keys cannot manage other API keys. ````