> ## Documentation Index > Fetch the complete documentation index at: https://www.worldmonitor.app/docs/llms.txt > Use this file to discover all available pages before exploring further. # ListTechEvents > ListTechEvents retrieves tech events from Techmeme ICS, dev.events RSS, and curated sources. ## OpenAPI ````yaml /api/ResearchService.openapi.yaml get /api/research/v1/list-tech-events openapi: 3.1.0 info: title: ResearchService API version: 1.0.0 servers: - url: https://api.worldmonitor.app security: - WorldMonitorKey: [] - ApiKeyHeader: [] paths: /api/research/v1/list-tech-events: get: tags: - ResearchService summary: ListTechEvents description: >- ListTechEvents retrieves tech events from Techmeme ICS, dev.events RSS, and curated sources. operationId: ListTechEvents parameters: - name: type in: query description: >- Event type filter: "all", "conference", "earnings", "ipo", "other". Empty = all. required: false example: all schema: type: string enum: - all - conference - earnings - ipo - other - name: mappable in: query description: Only events with non-virtual coordinates. required: false example: true schema: type: boolean - name: limit in: query description: >- Max events to return. The handler clamps this to the range 1-200 and defaults to 50 when omitted; 0 is not unlimited (it clamps up to 1). required: false example: 25 schema: type: integer format: int32 - name: days in: query description: >- Events within N days from now. The handler clamps this to the range 1-365 and defaults to 90 when omitted; 0 is not unlimited (it clamps up to 1). required: false example: 7 schema: type: integer format: int32 - name: jmespath in: query description: >- Optional JMESPath expression applied server-side to project or reduce the JSON response before it is returned (mirrors the MCP jmespath argument). Invalid expressions, expressions larger than 1024 UTF-8 bytes, or projections that exceed the 256 KB output cap return HTTP 400 with a {_jmespath_error, original_keys} envelope. Grammar and worked examples: https://www.worldmonitor.app/docs/mcp-jmespath. required: false example: keys(@) schema: type: string responses: '200': description: Successful response content: application/json: example: conferenceCount: 1 count: 1 error: example events: - coords: country: US lat: 40.7128 lng: -74.006 original: example virtual: true description: Example WorldMonitor observation. endDate: '2026-01-15' id: example-id location: example lastUpdated: '2026-01-15T12:00:00.000Z' schema: $ref: '#/components/schemas/ListTechEventsResponse' '400': description: Validation error content: application/json: schema: oneOf: - $ref: '#/components/schemas/ValidationError' - $ref: '#/components/schemas/JmespathProjectionError' '401': description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '403': description: >- API access requires an active subscription (the API key's subscription is inactive or expired). content: application/json: schema: $ref: '#/components/schemas/ForbiddenError' '429': description: Rate limit exceeded. headers: X-RateLimit-Limit: description: Maximum requests allowed in the active rate-limit window. schema: type: string X-RateLimit-Remaining: description: Requests remaining in the active rate-limit window. schema: type: string X-RateLimit-Reset: description: >- Unix epoch milliseconds when the active rate-limit window resets. schema: type: string Retry-After: description: Seconds to wait before retrying the request. schema: type: string content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/RateLimitError' default: description: Gateway or handler error response. content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/GatewayError' components: schemas: ListTechEventsResponse: type: object properties: success: type: boolean description: Whether the request succeeded. count: type: integer format: int32 description: Total event count in response. conferenceCount: type: integer format: int32 description: Number of conference-type events. mappableCount: type: integer format: int32 description: Number of mappable (non-virtual with coords) events. lastUpdated: type: string description: ISO 8601 timestamp of last update. events: type: array items: $ref: '#/components/schemas/TechEvent' error: type: string description: Error message if success is false. description: ListTechEventsResponse contains tech events matching the request. ValidationError: type: object properties: violations: type: array items: $ref: '#/components/schemas/FieldViolation' description: List of validation violations required: - violations description: >- ValidationError is returned when request validation fails. It contains a list of field violations describing what went wrong. JmespathProjectionError: description: >- Returned when a REST jmespath projection is invalid or exceeds the expression/output byte limits. properties: _jmespath_error: description: Projection error discriminator and details. type: string original_keys: description: Top-level keys or shape of the unprojected response. items: type: string type: array required: - _jmespath_error - original_keys type: object UnauthorizedError: type: object properties: error: type: string description: Human-readable error message. required: - error description: >- Returned when the API key is missing, malformed, or lacks current API access. ForbiddenError: type: object properties: error: type: string description: Human-readable entitlement failure reason. requiredTier: type: integer format: int32 description: Minimum entitlement tier required for this endpoint. currentTier: type: integer format: int32 description: Caller entitlement tier when known. planKey: type: string description: Caller plan key when known. required: - error description: >- Returned when a PRO-gated endpoint denies access because the caller has no resolved authenticated user, entitlements cannot be verified, or the caller lacks the required entitlement tier. Error: type: object properties: message: type: string description: Error message (e.g., 'user not found', 'database connection failed') description: >- Error is returned when a handler encounters an error. It contains a simple error message that the developer can customize. RateLimitError: type: object description: Returned when a gateway or handler rate limit rejects the request. properties: error: type: string description: Human-readable rate-limit failure reason. required: - error GatewayError: type: object description: >- Returned by gateway infrastructure errors before an RPC handler runs, such as origin, routing, method, authentication, or quota checks. properties: error: oneOf: - type: string - type: object additionalProperties: true description: Gateway error reason or structured gateway failure details. required: - error TechEvent: type: object properties: id: type: string description: Unique event identifier. title: type: string description: Event title. type: type: string description: 'Event type: "conference", "earnings", "ipo", "other".' location: type: string description: Location description. coords: $ref: '#/components/schemas/TechEventCoords' startDate: type: string description: Start date (YYYY-MM-DD). endDate: type: string description: End date (YYYY-MM-DD). url: type: string description: Event URL. source: type: string description: 'Source: "techmeme", "dev.events", "curated".' description: type: string description: Event description. description: >- TechEvent represents a single tech event (conference, earnings, IPO, etc.). FieldViolation: type: object properties: field: type: string description: >- The field path that failed validation (e.g., 'user.email' for nested fields). For header validation, this will be the header name (e.g., 'X-API-Key') description: type: string description: >- Human-readable description of the validation violation (e.g., 'must be a valid email address', 'required field missing') required: - field - description description: FieldViolation describes a single validation error for a specific field. TechEventCoords: type: object properties: lat: type: number format: double description: Latitude. lng: type: number format: double description: Longitude. country: type: string description: Country name or code. original: type: string description: Original location string before normalization. virtual: type: boolean description: Whether this is a virtual/online event. description: TechEventCoords contains geocoded location data for a tech event. securitySchemes: WorldMonitorKey: type: apiKey in: header name: X-WorldMonitor-Key description: User-issued WorldMonitor API key. ApiKeyHeader: type: apiKey in: header name: X-Api-Key description: Alias header for the WorldMonitor API key (X-WorldMonitor-Key). ````