> ## Documentation Index > Fetch the complete documentation index at: https://docs.echozero.app/llms.txt > Use this file to discover all available pages before exploring further. # Record a portal demo trade signal (dev-signals collection) > Authenticated developer API key. Persists a sandbox row scoped to the agent in the `dev-signals` Mongo collection — isolated from canonical `trade-signals` used by webhooks and live ingest. Same DTO shape as WebSocket `signal` / structured ingest; no HMAC and no execution pipeline. ## OpenAPI ````yaml https://mcp.echozero.app/api/docs-json post /api/dev/trade-signals openapi: 3.0.0 info: title: EchoZero MCP API description: >- EchoZero MCP Server - Developer API for agent management, trading, marketplace, and AI chat. **Rate Limiting:** All endpoints enforce per-API-key rate limits. Tiers: free (60 req/min), standard (300 req/min), premium (1000 req/min). Every response includes `X-RateLimit-Limit`, `X-RateLimit-Remaining`, `X-RateLimit-Reset` headers. Exceeding the limit returns `429 Too Many Requests` with a `Retry-After` header. version: '1.0' contact: {} servers: - url: https://mcp.echozero.app description: Production security: [] tags: - name: MCP Protocol description: >- Model Context Protocol (Streamable HTTP): `/mcp`, `/mcp/sse` — not under `/api`; same API key as REST - name: Health description: Server health check - name: API Keys description: API key generation, listing, and revocation - name: User description: >- User profile, sessions, social, onboarding, internal agent subscriptions, and bot activations (v1: /v1/users/me) - name: Token description: Token data and trending - name: Trade description: Trade execution and history - name: Strategy description: Strategy (trading bot) configuration and control - name: Agent description: Agent registration and management - name: AI description: AI chat, intent, and insights - name: Wallet description: Wallet operations, deposits, and withdrawals - name: Notification description: Notification management and settings - name: Auth description: >- Public authentication: signup / login lookup, code verification, Google OAuth, refresh, and sign-out. Returns `accessToken` / `refreshToken` in the JSON body. - name: OAuth description: >- OAuth 2.1 authorization-code + PKCE for AI assistant clients: `/oauth/authorize`, `/oauth/token`, `/oauth/introspect`, `/status`. - name: Activity description: User trade activity list and search - name: Feed description: Social activity feed timeline - name: Earn description: Leaderboard, rewards, and referrals - name: Statics description: Countries, languages, and static data - name: Misc description: File uploads and utility endpoints - name: Developer description: Developer registration and profile - name: Developer dashboard description: >- Per-agent dashboard: subscribers (anonymized), performance detail, signal history (v1) - name: Developer Agent description: Developer agent listings and management - name: Developer Agents (Marketplace) description: Public browse, search, and subscribe to external developer-listed agents - name: Admin description: Admin-only endpoints for review, approval, and platform management - name: Webhooks description: >- Inbound provider webhooks (no API key). Telegram signal-bot uses `X-Telegram-Bot-Api-Secret-Token` when configured. paths: /api/dev/trade-signals: post: tags: - Trade Signals (Dev) summary: Record a portal demo trade signal (dev-signals collection) description: >- Authenticated developer API key. Persists a sandbox row scoped to the agent in the `dev-signals` Mongo collection — isolated from canonical `trade-signals` used by webhooks and live ingest. Same DTO shape as WebSocket `signal` / structured ingest; no HMAC and no execution pipeline. operationId: TradeSignalDevController_simulateSignal parameters: - name: x-signature in: header required: false description: >- HMAC-SHA256 signature: HMAC-SHA256(secretKey, timestamp + METHOD + path + body). Optional -- when omitted, HMAC verification is skipped. schema: type: string - name: x-timestamp in: header required: false description: >- Request timestamp in epoch milliseconds. Required when x-signature is provided. Rejected if drift exceeds 5 minutes. schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/TradeSignalDto' examples: minimal: summary: Required fields only value: developerAgentId: 507f1f77bcf86cd799439011 action: buy tokenAddress: So11111111111111111111111111111111111111112 amount: 100 fullAllFields: summary: With urgency + metadata + idempotency value: developerAgentId: 507f1f77bcf86cd799439011 action: sell tokenAddress: So11111111111111111111111111111111111111112 amount: 250.5 idempotencyKey: swagger-run-001-stable-key urgency: high metadata: note: E2E / Swagger example source: dev-http reasoning: Manual test signal via dev HTTP context: channel: swagger confidence: 0.92 responses: '200': description: Demo signal stored. content: application/json: schema: allOf: - $ref: '#/components/schemas/McpSuccessResponseDto' - properties: data: $ref: '#/components/schemas/SignalReceivedResponseDto' '400': description: Validation or business rule error. content: application/json: schema: $ref: '#/components/schemas/McpErrorResponseDto' '401': description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/McpErrorResponseDto' '403': description: Not a registered developer. content: application/json: schema: $ref: '#/components/schemas/McpErrorResponseDto' '404': description: Agent not found or not owned by this developer. content: application/json: schema: $ref: '#/components/schemas/McpErrorResponseDto' '429': description: Rate limit exceeded. content: application/json: schema: $ref: '#/components/schemas/McpErrorResponseDto' security: - api-key: [] components: schemas: TradeSignalDto: type: object properties: developerAgentId: type: string description: Developer agent ID idempotencyKey: type: string description: >- When ≥8 characters, used to build a stable `signalId` (`sig_api__`) so retries dedupe like Telegram `message_id`. Also accepted as `metadata.idempotencyKey` or `context.idempotencyKey`. maxLength: 128 action: type: string enum: - buy - sell tokenAddress: type: string description: Solana token address amount: type: number description: Trade amount in USD urgency: type: string enum: - low - medium - high metadata: type: object description: Arbitrary metadata reasoning: type: string description: Human-readable synthesis (e.g. parsed channel line summary). context: type: object description: Structured provenance / parser context confidence: type: number description: Confidence in [0, 1] (clamped server-side). minimum: 0 maximum: 1 required: - developerAgentId - action - tokenAddress - amount McpSuccessResponseDto: type: object properties: success: type: boolean example: true data: type: object description: Endpoint-specific payload additionalProperties: true required: - success - data SignalReceivedResponseDto: type: object properties: signalId: type: string example: sig_1234567890_abc12345 status: type: string example: executed executionResult: $ref: '#/components/schemas/ExecutionResultResponseDto' required: - signalId - status McpErrorResponseDto: type: object properties: success: type: boolean example: false error: $ref: '#/components/schemas/McpErrorBodyDto' required: - success - error ExecutionResultResponseDto: type: object properties: success: type: boolean txHash: type: string executedAmountUsd: type: number errorMessage: type: string executedAt: type: string format: date-time required: - success McpErrorBodyDto: type: object properties: code: type: string example: NOT_FOUND message: type: string example: Resource not found required: - code - message securitySchemes: api-key: type: apiKey in: header name: x-api-key ````