> ## Documentation Index > Fetch the complete documentation index at: https://docs.kairos.trade/llms.txt > Use this file to discover all available pages before exploring further. # Search markets by text query > Unified market search. Results are post-filtered to drop rows whose provider is currently inactive. ## OpenAPI ````yaml /openapi/data-api.yaml get /search/markets openapi: 3.1.0 info: title: Kairos Data API version: 1.0.0 summary: >- The full Kairos data plane — markets, candles, trades, search, discover, sports, trader analytics, and PnL. description: | The Kairos Data API at `data.kairos.trade` is the platform's primary data plane: market metadata and prices, OHLCV candles, live venue trade proxies, normalized trade history, full-text search, discovery feeds, the sports catalog, public trader analytics, and account PnL. ## Authentication Most endpoints accept a Kairos **API key** (`X-Client-Id` + `X-Api-Key` + `X-Api-Secret`, all three) or a first-party session JWT. Endpoints tagged `public` (trader analytics, provider configs, several sports feeds) need no credentials at all. Some endpoints additionally require an API-key **scope** (`trade:read`, `position:read`) — stated per operation. For high-volume market-data consumption (candles/trades/metadata at scale), prefer the dedicated **Market Data API** at `md.kairos.trade` — it has higher budgets, ETag caching, and a binary candle format. ## Rate limits Rate limits use a sliding window keyed on the authenticated user (JWT `sub`) or, for anonymous callers, the trusted client IP. Routes belong to a named **bucket** (`x-kairos-bucket`) whose per-minute budget is shared by every route in it; routes with no bucket run under the service default of 100/minute. `x-kairos-rate-limit` states the bucket's compile-time default — operators can raise or lower a bucket at runtime, so treat the documented number as the baseline, not a contract. 429 responses carry `Retry-After` and `X-RateLimit-*`. ## Conventions - Prices are on the **0–100 cents scale** unless a field says otherwise (trader-analytics position/trade prices use the 0–1 scale; each field's description states its scale). - Errors: `{"detail": ""}` for handler errors; FastAPI's standard validation envelope for 422s. Errors surfaced from a venue adapter instead use `{"error", "provider", "operation", "message"}` — see `DataProviderError`. Unhandled failures always return the generic 500 body; internal details are logged, never returned. - Every request body is capped at 8 MiB service-wide (413). contact: name: Kairos url: https://app.kairos.trade/docs/api-reference termsOfService: https://kairos.trade/terms servers: - url: https://data.kairos.trade description: Production - url: https://staging-data.kairos.trade description: Staging security: - apiKeyClientId: [] apiKeyKey: [] apiKeySecret: [] paths: /search/markets: get: tags: - Search summary: Search markets by text query description: >- Unified market search. Results are post-filtered to drop rows whose provider is currently inactive. operationId: searchMarkets parameters: - name: q in: query required: true description: Search query text. schema: type: string minLength: 1 maxLength: 200 example: trump 2028 - name: limit in: query schema: type: integer minimum: 1 maximum: 100 default: 50 - name: provider in: query description: >- Filter by provider id (e.g. kalshi, polymarket, predictfun, opinion, dome). Validated dynamically against active providers; 400 if unrecognized. `provider_id` is accepted as a legacy alias — if both are given they must match or the request 400s. schema: type: string example: polymarket - name: provider_id in: query description: Legacy alias for `provider`. See `provider`. schema: type: string - name: include_expired in: query schema: type: boolean default: false - name: statuses in: query description: >- Repeatable market-status filter (e.g. open, closed, settled). Passed through unvalidated. schema: type: array items: type: string style: form explode: true - name: categories in: query description: Repeatable category filter. Passed through unvalidated. schema: type: array items: type: string style: form explode: true - name: tags in: query description: >- Repeatable platform-tag-slug filter (query param name is `tags`; internally `platform_tags`). schema: type: array items: type: string style: form explode: true responses: '200': description: Search results, visibility-filtered by active provider. content: application/json: schema: $ref: '#/components/schemas/SearchMarketsResponse' '400': description: >- Empty/whitespace-only `q`, or invalid `provider`/`provider_id` (unknown id, or mismatch between the two). content: application/json: schema: $ref: '#/components/schemas/SearchBadRequestError' '401': $ref: '#/components/responses/DataUnauthorized' '403': $ref: '#/components/responses/DataForbidden' '422': $ref: '#/components/responses/DataValidationError' '429': $ref: '#/components/responses/DataRateLimited' '500': description: Search backend query failed. content: application/json: schema: $ref: '#/components/schemas/DataError' components: schemas: SearchMarketsResponse: type: object required: - results - meta properties: results: type: array items: $ref: '#/components/schemas/SearchResult' meta: $ref: '#/components/schemas/SearchMeta' SearchBadRequestError: type: object description: FastAPI `HTTPException(400)` body shape used across the search router. required: - detail properties: detail: type: string example: 'Invalid provider: acme' DataError: type: object description: Handler error envelope (FastAPI HTTPException). required: - detail properties: detail: type: string description: Human-readable error message. example: Invalid provider SearchResult: type: object description: >- One market or event row from search results, post provider-visibility filtering. required: - market_id - provider_id - provider - relevance_score properties: market_id: type: string example: KXPRES-28-DJT provider_id: type: integer description: >- Numeric provider id (1=kalshi, 2=polymarket, 3=opinion, 8=predictfun). example: 1 provider: type: string example: kalshi event_id: type: string nullable: true event_name: type: string nullable: true name: type: string nullable: true description: Market title. symbol: type: string nullable: true category: type: string nullable: true status: type: string nullable: true example: open expires_at: type: string format: date-time nullable: true relevance_score: type: number description: Composite final score = text_score + business_score - penalty. volume_24h: type: number default: 0 outcome_label: type: string nullable: true series_key: type: string nullable: true description: Polymarket seriesSlug or Kalshi series_ticker. series_title: type: string nullable: true text_score: type: number default: 0 business_score: type: number default: 0 penalty: type: number default: 0 minimum: 0 price: type: number nullable: true volume_1h: type: number default: 0 liquidity: type: number default: 0 image: type: string nullable: true icon: type: string nullable: true token_id: type: string nullable: true description: >- First outcome's on-chain token id (legacy singular field). For a market with more than one outcome use `token_ids`/`outcomes` instead. condition_id: type: string nullable: true description: >- Venue condition id (Polymarket 0x… condition hash), when the venue has one. token_ids: type: array items: type: string description: >- Full on-chain outcome token roster, aligned with `outcomes`. Feed these to `/v1/synthetics` legs and `/v1/candles` without a second resolve call. Empty when the market has no on-chain tokens. outcomes: type: array items: type: string description: Outcome labels aligned positionally with `token_ids`. type: type: string enum: - event nullable: true description: >- Only present (and only ever "event") on rows returned by /search/markets-and-events when type=event or both. SearchMeta: type: object properties: query: type: string returned: type: integer description: Number of rows in `results` after provider-visibility filtering. requested: type: integer description: The `limit` that was requested. query_time_ms: type: number include_expired: type: boolean provider_id: type: string nullable: true description: Resolved/validated provider filter, or null if none. responses: DataUnauthorized: description: > No valid credential presented — missing/invalid API-key headers, or an invalid/expired session token. content: application/json: schema: $ref: '#/components/schemas/DataError' example: detail: Not authenticated DataForbidden: description: > Authenticated but not permitted. Three distinct causes: the session user is not invited (`Invite required`), the API key lacks the operation's scope, or API-key access to the requested venue is switched off (`API access is disabled for `). Admin and API-key callers bypass the invite check; session and admin callers bypass scope and venue checks. content: application/json: schema: $ref: '#/components/schemas/DataError' example: detail: Invite required DataValidationError: description: Request failed FastAPI parameter validation. content: application/json: schema: type: object required: - detail properties: detail: type: array description: >- One entry per failed field, with location, message, and error type. items: type: object additionalProperties: true DataRateLimited: description: > Rate limit exceeded for this route's sliding window, keyed on the session `sub` when authenticated and on the trusted client IP otherwise. Honor `Retry-After`. A per-API-key data ceiling (set per credential) rejects with `{"detail": "API key data rate limit exceeded"}` instead of the `error` envelope below. headers: Retry-After: schema: type: integer X-RateLimit-Limit: schema: type: integer X-RateLimit-Remaining: schema: type: integer X-RateLimit-Reset: schema: type: integer content: application/json: schema: type: object properties: error: type: string example: 'Rate limit exceeded: 100 per 1 minute' securitySchemes: apiKeyClientId: type: apiKey in: header name: X-Client-Id description: >- Credential client id (`kairos_ck_...`). Must be sent together with X-Api-Key and X-Api-Secret. apiKeyKey: type: apiKey in: header name: X-Api-Key description: 64-char hex API key. apiKeySecret: type: apiKey in: header name: X-Api-Secret description: 64-char hex API secret. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.