> ## 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. # Draft personas with a model > Returns DRAFTS and persists nothing. That separation is deliberate: generation is the step most likely to produce something nobody wanted, and a route that both invented and saved would make "let me see what you'd suggest" indistinguishable from "fill my project with these". It is also why there is no idempotency key — a call with no effect has nothing to de-duplicate, and offering one would imply the drafts are stable across retries when they are not. **SPENDS.** This runs models on your organization's account and is metered two ways: a per-minute burst brake (429, retry in seconds) and your plan's daily budget (429, resets at UTC midnight). Both normally carry `Retry-After` — honor it when it is there, and back off on your own when it is not. ## OpenAPI ````yaml /reference/openapi.json post /projects/{projectId}/personas/generate 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: Server connections description: >- Connect an MCP server URL to a project, authorizing in a browser when the server requires it. - 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. - name: Swarms description: >- Personas, journeys and swarm containers — the authoring half of Swarms — plus the model-backed generation that drafts them. - name: Swarm runs description: >- Launching journeys and reading what they produced. Launching SPENDS — see the per-operation notes. - name: Swarm insights description: >- What a swarm run revealed. The scorecard and findings are deterministic and free; requesting wave insights runs models and draws on your shared daily ledger. - name: User testing description: >- Publishing an environment for real visitors, and controlling who can reach it. Several of these NARROW access and take effect immediately. paths: /projects/{projectId}/personas/generate: parameters: - $ref: '#/components/parameters/projectId' post: tags: - Swarms summary: Draft personas with a model description: >- Returns DRAFTS and persists nothing. That separation is deliberate: generation is the step most likely to produce something nobody wanted, and a route that both invented and saved would make "let me see what you'd suggest" indistinguishable from "fill my project with these". It is also why there is no idempotency key — a call with no effect has nothing to de-duplicate, and offering one would imply the drafts are stable across retries when they are not. **SPENDS.** This runs models on your organization's account and is metered two ways: a per-minute burst brake (429, retry in seconds) and your plan's daily budget (429, resets at UTC midnight). Both normally carry `Retry-After` — honor it when it is there, and back off on your own when it is not. operationId: generatePersonas requestBody: required: true description: Grounding source and slate size. content: application/json: schema: $ref: '#/components/schemas/PersonaGenerateRequest' responses: '200': description: Draft personas and journeys. content: application/json: schema: $ref: '#/components/schemas/GenerationDrafts' '400': $ref: '#/components/responses/ValidationError' '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' components: parameters: projectId: name: projectId in: path required: true description: ID of the hosted project that contains the server. schema: type: string schemas: PersonaGenerateRequest: type: object description: >- Exactly ONE grounding source: `serverAttachmentId` or `environmentId`. Sending both is a 400 — a request that is already confused about what it wants should not have a winner picked for it. additionalProperties: false properties: serverAttachmentId: type: string environmentId: type: string journeyCount: type: integer description: Journeys to draft per persona. personaCount: type: integer minimum: 1 maximum: 12 description: >- Ask for a SLATE of N personas. Omitting it is not the same as `1`: it selects the legacy single-persona response shape, so a default would switch the response under a caller that only knows the other one. description: type: string maxLength: 2000 description: Free-text audience brief, forwarded verbatim into the prompt. existingPersonas: type: array description: >- Personas you already have, so the model drafts different ones. A prompt hint, not a data feed — only the first few dozen are used. items: type: object required: - name - role properties: name: type: string role: type: string GenerationDrafts: type: object description: >- DRAFTS. Nothing here is persisted — feed what you want to keep to `POST /projects/{projectId}/personas` or `POST /projects/{projectId}/journeys`. The shape depends on the request: `POST /personas/generate` returns `{persona, journeys}` without `personaCount` and `{personas: [{persona, journeys}]}` with it; `POST /journeys/generate` returns `{journeys}`. additionalProperties: true properties: persona: $ref: '#/components/schemas/PersonaDraft' personas: type: array items: type: object properties: persona: $ref: '#/components/schemas/PersonaDraft' journeys: type: array items: $ref: '#/components/schemas/JourneyDraft' journeys: type: array items: $ref: '#/components/schemas/JourneyDraft' PersonaDraft: type: object description: A generated persona draft. Nothing is persisted until you create it. required: - name - role additionalProperties: true properties: name: type: string role: type: string notes: type: string JourneyDraft: type: object required: - goal additionalProperties: true properties: name: type: string goal: type: string suggestedChecks: type: array description: >- Deterministic checks the backend suggests. Only `toolCalledAtLeastOnce` is ever suggested — it is the one kind whose validity the grounding snapshot can prove, because the tool provably exists. items: type: object required: - type - toolName properties: type: type: string enum: - toolCalledAtLeastOnce toolName: type: string 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: ValidationError: description: Malformed body or parameters. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: VALIDATION_ERROR message: Invalid JSON body 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 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. ````