Datacloud Code

A Salesforce Data Cloud (Data360) MCP server using the Cloudflare Code Mode pattern: two tools (search + execute), each taking a JavaScript async arrow function, with a fixed ~1k-token tool footprint regardless of API surface size.

How It Works

Instead of exposing hundreds of endpoint-level tools, this server gives agents a stable two-step loop:

1. search — agent writes JavaScript to filter the OpenAPI spec and discover Data Cloud endpoints.
2. execute — agent writes JavaScript that calls salesforce.request() to make authenticated API requests.

Both tools run user code in a node:vm sandbox with restricted globals. The full OpenAPI spec never enters the model context — the agent explores it programmatically through search().

What's Covered

~185 Data Cloud operations across 25 API families:

Family	Examples
Query	SQL query (v1/v2/v3), profile, insights, data graphs
DMO/DLO	CRUD for Data Model Objects and Data Lake Objects
Mappings	DMO field mappings, bulk mappings, standard mappings
Data Streams	List, create, update, delete, trigger runs
Connectors	List types, metadata, CRUD connections, test
Calculated Insights	CRUD, run, validate, enable/disable
Segments	CRUD, publish, members, overlap analysis
Identity Resolution	CRUD rulesets, publish, run, match history
Activations	CRUD activations + targets, sync, history
Data Transforms	CRUD, run, validate, schedule
Semantic Data Models	Models, objects, dimensions, measurements, metrics, relationships, query
Data Spaces	CRUD spaces, member management
DataKits	List, manifest, deploy, undeploy, component status
GDPR	Right-to-access, bulk read, erasure requests
Search Indexes	CRUD, hybrid full-text query
Eventing	Single and batch a360 event publish
Data Actions	CRUD actions + targets

Quick Start

npm install
npm run build
npm test        # 27 tests across 5 suites

Auth Options

Option 1: Direct access token (same env vars as d360-mcp-server)

CDP_ACCESS_TOKEN=<token> CDP_INSTANCE_URL=<url> npm run dev

Option 2: OAuth client credentials

CDP_CLIENT_ID=<id> CDP_CLIENT_SECRET=<secret> CDP_LOGIN_URL=https://login.salesforce.com npm run dev

Option 3: OAuth web flow

1. Set SALESFORCE_OAUTH_CLIENT_ID, SALESFORCE_OAUTH_CLIENT_SECRET, SALESFORCE_OAUTH_REDIRECT_URI in .env.
2. Start server: npm run dev
3. Open /oauth/start?user_id=default and complete login.

Option 4: Seed token from CLI

npm run seed:token     # reads sf CLI auth or env vars
TOKEN_STORE_PATH=./data/tokens.integration.json \
TOKEN_ENCRYPTION_KEY_BASE64='<from seed>' npm run dev

Run Server

PORT=3000 HOST=127.0.0.1 npm run dev
curl -sS http://127.0.0.1:3000/healthz

Smoke Test

MCP_URL=http://127.0.0.1:3000/mcp USER_ID=default npm run smoke:mcp

Example Calls

Search: find endpoints by tag

{
  "name": "search",
  "arguments": {
    "code": "async () => {\n  const results = [];\n  for (const [path, methods] of Object.entries(spec.paths)) {\n    for (const [method, op] of Object.entries(methods)) {\n      if (op.tags?.some(t => t.toLowerCase().includes('segment'))) {\n        results.push({ method: method.toUpperCase(), path, summary: op.summary });\n      }\n    }\n  }\n  return results;\n}"
  }
}

Search: inspect an endpoint schema

{
  "name": "search",
  "arguments": {
    "code": "async () => {\n  const op = spec.paths['/services/data/v64.0/ssot/query-sql']?.post;\n  return { summary: op?.summary, requestBody: op?.requestBody };\n}"
  }
}

Execute: run a SQL query

{
  "name": "execute",
  "arguments": {
    "code": "async () => {\n  return await salesforce.request({\n    method: 'POST',\n    path: '/services/data/v64.0/ssot/query-sql',\n    body: { sql: 'SELECT FirstName__c FROM UnifiedIndividual__dlm LIMIT 5' }\n  });\n}"
  }
}

Execute: chain multiple calls

{
  "name": "execute",
  "arguments": {
    "code": "async () => {\n  const list = await salesforce.request({ method: 'GET', path: '/services/data/v64.0/ssot/segments' });\n  const first = list.body?.data?.[0];\n  if (!first) return { message: 'No segments' };\n  return await salesforce.request({ method: 'GET', path: '/services/data/v64.0/ssot/segments/' + first.id });\n}"
  }
}

MCP Client Integration

{
  "mcpServers": {
    "datacloud-code-mcp": {
      "transport": "streamable_http",
      "url": "http://127.0.0.1:3000/mcp",
      "headers": { "x-user-id": "default" }
    }
  }
}

Safety Model

• Mutating methods (POST, PATCH, PUT, DELETE) blocked unless ALLOW_WRITES=true.
• salesforce.request() only allows outbound HTTP to the authenticated instance's hostname + *.salesforce.com + *.force.com.
• Sensitive headers/body keys are redacted in tool output.
• User code runs in a node:vm sandbox with no require, process, global, or filesystem access.
• Sandbox enforces SANDBOX_TIMEOUT_MS (default 15s) to prevent runaway execution.

Deploy to Heroku

heroku create
heroku config:set TOKEN_ENCRYPTION_KEY_BASE64=$(node -e "console.log(require('crypto').randomBytes(32).toString('base64'))")
heroku config:set ALLOW_WRITES=false
heroku config:set CDP_ACCESS_TOKEN=<token> CDP_INSTANCE_URL=<url>
git push heroku main

Then point your MCP client at https://<app>.herokuapp.com/mcp.

Configuration

See .env.example for all available environment variables.

Project Layout

src/
  index.ts              HTTP server + MCP session management
  mcp-server.ts         Tool registration (search, execute, auth_status)
  config.ts             Zod-parsed environment config
  types.ts              Shared TypeScript interfaces
  logger.ts             Pino logger
  auth/
    oauth-service.ts    Salesforce OAuth web flow + token exchange
    auth-modes.ts       Strategy resolver (direct/client-cred/password/oauth)
    token-store.ts      AES-256-GCM encrypted token persistence
  schema/
    datacloud-schema-service.ts   Catalog loader, merger, $ref resolver
    catalog.ts                    OpenAPI → PlatformOperation parser
    spec-processor.ts             $ref resolution + spec processing (Cloudflare pattern)
    bundled-spec.ts               Resolve bundled YAML paths
    data360-api.bundled.yaml      Base OpenAPI spec (~35 endpoints)
    d360-extras.yaml              Extended endpoints (~150 more operations)
  sandbox/
    runner.ts           node:vm sandbox executor
    sf-client.ts        salesforce.request() injectable client
    safe-fetch.ts       Hostname-allow-listed fetch wrapper
    truncate.ts         Response truncation
  execute/
    datacloud-executor.ts   Legacy structured executor (kept for reference)
    redaction.ts            Body/header redaction helpers
    http-policy.ts          Retry + read-cache helpers
  safety/
    write-confirmation.ts   HMAC write tokens (used by legacy executor)
  search/
    search-index.ts         BM25 search index (kept for potential reuse)
  utils/
    crypto.ts               AES-256-GCM encrypt/decrypt
    headers.ts              Header value resolver
tests/                      Vitest test suites
scripts/                    Smoke test + token seed scripts
docs/                       Reference docs (Data Cloud guide, Postman)

References

• Cloudflare Code Mode MCP — the pattern this server follows
• Cloudflare MCP repo — reference implementation
• Anthropic: Introducing advanced tool use