> ## Documentation Index > Fetch the complete documentation index at: https://docs.aura.markets/llms.txt > Use this file to discover all available pages before exploring further. # Simulate a BUY or SELL against the canonical instant matcher. > Uses the same candidate ordering, fee, rounding, AON/IOC, cost-bound and breaker logic as execution. The quote is point-in-time and is never a guaranteed fill. Exact financial values are decimal strings. Anonymous access remains available; a presented developer key requires market:read. A wallet session adds self-match exclusion and authoritative spendable data; when combined with a developer key, that private enrichment additionally requires account:read. ## OpenAPI ````yaml /api-reference/openapi.json post /v1/markets/{address}/quote openapi: 3.1.0 info: title: Aura API description: >- Public REST API for Aura, prediction markets on Alephium. This API exposes the app read model: markets, live instant order books, orders, fills, vault state, oracle and governance. Non-trading build-tx endpoints return unsigned transactions for the client to sign with its own wallet. Interactive reference: https://docs.aura.markets/api-reference/introduction ## Discovery Built for integrators, not for lazy implementers: - **Faceted lists.** Every list endpoint accepts `?facets=true` and returns category, tag, and status counts in the same response, so a UI can render filter chips without a second request. - **Cursor pagination.** Stable across inserts and fast at depth. Offset paging via `?page=` is still supported for compat. - **Rich filters.** `?q=`, `?category=`, `?tags=`, `?status=`, `?creator=`, and `?minVolume=` on `/v1/markets`. Tag matching is AND, so all listed tags must be present. - **Sortable.** `?sort=created-at|volume|best-bid-yes|recently-traded` with `?order=asc|desc`. Use `/v1/trending` for the composite-score sort. - **Field projection.** `?fields=id,question,bestBidYes` trims the wire weight for thin clients. - **Unified search.** `/v1/search?q=` matches strictly first, then falls back to typo-tolerant matching when nothing hits. The result type is a discriminated union, so adding events or users later is non-breaking. - **Transparent trending.** `/v1/trending` returns the full algorithm and per-market component scores so the ranking is auditable. - **Categories and tags as first-class.** `/v1/categories` and `/v1/tags` enumerate the taxonomy with market counts. ## Authentication Aura uses wallet-bound account sessions delivered as an HttpOnly cookie. Sign in by signing a one-time challenge with your wallet: ``` POST /v1/auth/challenge { "address": "..." } POST /v1/auth/session { "address": "...", "publicKey": "...", "signature": "...", "keyType": "gl-secp256k1" } ``` The `session` call sets the `aura_session` cookie and returns a CSRF token; send it back in the `x-csrf-token` header on every mutating request. Every token is checked against durable revocation state. `POST /v1/auth/logout` revokes the presented cookie or bearer session; cookie callers include the same CSRF header. Reads are accessible anonymously with low IP-based rate limits; write endpoints (`/v1/tx/*`, social writes) require a valid session. ## Rate limits | Tier | Reads (req/min) | Writes (req/min) | |-----------|----------------:|-----------------:| | Anonymous | 60 per IP | 10 per IP | | Signed-in | 600 per wallet | 60 per wallet | Standard `RateLimit-*` response headers are returned on every request (IETF `draft-ietf-httpapi-ratelimit-headers`). ## Write endpoints Aura never returns raw keys, signing grants, or transaction/intent signatures. Embedded-wallet keys are usable only inside the measured enclave. Endpoints under `/v1/tx/*` return an *unsigned* transaction for an independently controlled wallet to sign and submit. Builder trading endpoints require two independent credentials: a scoped developer key identifies and rate-limits the integration, while a user-created restricted trading authorization permits only its bounded place/cancel policy. Aura signs and submits inside custody; the builder receives a receipt, never a reusable signature. A typical on-chain lifecycle flow: 1. `POST /v1/tx/vault/{address}/deposit` → server returns `{ unsignedTx, gasEstimate, ... }`. 2. Wallet signs `unsignedTx`. 3. Wallet submits the signed tx to any Alephium node. version: 0.1.0 license: name: MIT contact: name: Aura url: https://docs.aura.markets servers: - url: / description: this server security: - SessionCookie: [] - SessionBearer: [] - {} tags: - name: Health description: Liveness + version info. - name: Auth description: Wallet account sessions (sign in, sign out). - name: Developer keys description: Create, rotate, revoke, and audit scoped builder identities. - name: Protocol description: Canonical chain, contract, trading, fee, and realtime configuration. - name: Transactions description: >- Reconcile Alephium transaction state with Aura indexing and recovery state. - name: Platform description: Site-wide banner settings and aggregate platform stats. - name: Realtime description: Server-Sent Events stream for live market and account updates. - name: Webhooks description: >- Durable HMAC-signed delivery of public and explicitly authorized private events. - name: Markets description: Browse and look up prediction markets. - name: Categories description: Top-level market taxonomy with counts. - name: Tags description: Free-form market tags with counts. - name: Events description: Linked-market groups (multi-leg events). - name: Search description: Full-text + fuzzy search across markets. - name: Orderbook description: Live order book + recent fills. - name: Trading description: Secure builder order placement, cancellation, and dead-man controls. - name: Trading receipts description: Public keys for verifying sequencer receipts. - name: Prices description: Latest prices and historical price series. - name: Positions description: Open share positions for the signed-in wallet. - name: Funding description: >- Wallet-authorized native funding balances, deposits, history, and withdrawal construction. - name: Parlays description: Parlay pool capacity, leg correlation checks, and clearance. - name: Vault description: AURA token vault. Build unsigned deposit / unlock / withdraw txs. - name: Disputes description: Optimistic oracle disputes. Read-side state and votes. - name: Oracle votes description: Build unsigned oracle txs (submit / dispute / commit / reveal). - name: Voting description: Governance proposals + voting period state. - name: Vote description: Build unsigned governance vote tx. - name: Proposals description: Validate + build market-proposal txs (single-leg, linked, parlay). - name: Rewards description: Liquidity reward programs, per-wallet accruals, and market sponsorships. - name: Earnings description: >- Unified creator, maker, referral, treasury, and builder attribution accounting. - name: Referrals description: Referral summaries and payout history. - name: Users description: Wallet-scoped reads. Profile, positions, orders, parlays. - name: Account actions description: Aggregated "what does this wallet need to do" views. - name: Account description: Watchlist and notification management for the signed-in wallet. - name: Leaderboard description: Top traders by composite score. - name: Account description: Watchlist and notification state for the signed-in wallet. externalDocs: description: Full Aura documentation (guides + interactive API reference) url: https://docs.aura.markets paths: /v1/markets/{address}/quote: post: tags: - Trading summary: Simulate a BUY or SELL against the canonical instant matcher. description: >- Uses the same candidate ordering, fee, rounding, AON/IOC, cost-bound and breaker logic as execution. The quote is point-in-time and is never a guaranteed fill. Exact financial values are decimal strings. Anonymous access remains available; a presented developer key requires market:read. A wallet session adds self-match exclusion and authoritative spendable data; when combined with a developer key, that private enrichment additionally requires account:read. parameters: - schema: type: string minLength: 30 maxLength: 80 pattern: ^[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz:]+$ in: path name: address required: true description: Alephium address (base58, optional `:N` group suffix). requestBody: required: true content: application/json: schema: type: object properties: outcome: type: string enum: - 'yes' - 'no' side: type: string enum: - buy - sell orderType: type: string enum: - gtc_limit - ioc_market quantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. spendBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. limitPriceTick: type: integer minimum: 0 maximum: 1000 description: Price as integer ticks of 0.001 (0=No, 1000=Yes). costBoundBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. feeCapBps: type: integer minimum: 0 maximum: 65535 allowPartialFill: default: true type: boolean expectedBookVersion: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. required: - outcome - side - orderType additionalProperties: false responses: '200': description: Default Response content: application/json: schema: type: object properties: marketAddress: type: string minLength: 30 maxLength: 80 pattern: >- ^[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz:]+$ description: Alephium address (base58, optional `:N` group suffix). marketId: type: string pattern: ^[0-9a-f]{64}$ request: type: object properties: outcome: type: string enum: - 'yes' - 'no' side: type: string enum: - buy - sell orderType: type: string enum: - gtc_limit - ioc_market quantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. spendBaseUnits: anyOf: - type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. - type: 'null' limitPriceTick: type: integer minimum: 0 maximum: 1000 description: Price as integer ticks of 0.001 (0=No, 1000=Yes). costBoundBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. feeCapBps: type: integer minimum: 0 maximum: 65535 allowPartialFill: type: boolean ownerSelfMatchExcluded: type: boolean required: - outcome - side - orderType - quantityBaseUnits - spendBaseUnits - limitPriceTick - costBoundBaseUnits - feeCapBps - allowPartialFill - ownerSelfMatchExcluded additionalProperties: false estimate: type: object properties: fills: type: array items: type: object properties: fillIndex: type: integer minimum: 0 maximum: 9007199254740991 matchType: type: string enum: - complementary_buy - same_outcome - complementary_sell makerSide: type: string enum: - buy - sell executionPriceTick: type: integer minimum: 0 maximum: 1000 description: >- Price as integer ticks of 0.001 (0=No, 1000=Yes). makerPriceTick: type: integer minimum: 0 maximum: 1000 description: >- Price as integer ticks of 0.001 (0=No, 1000=Yes). quantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. debitBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. creditBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. feeBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. required: - fillIndex - matchType - makerSide - executionPriceTick - makerPriceTick - quantityBaseUnits - debitBaseUnits - creditBaseUnits - feeBaseUnits additionalProperties: false filledQuantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. unfilledQuantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. unspentBaseUnits: anyOf: - type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. - type: 'null' averageExecutionPriceTick: anyOf: - type: object properties: numerator: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. denominator: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. floor: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. required: - numerator - denominator - floor additionalProperties: false - type: 'null' worstExecutionPriceTick: anyOf: - type: integer minimum: 0 maximum: 1000 description: Price as integer ticks of 0.001 (0=No, 1000=Yes). - type: 'null' expectedReceivedQuantityBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. expectedProceedsBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. totalFeeBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. requiredCollateralBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. currentSpendableBaseUnits: anyOf: - type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. - type: 'null' priceImpactBps: anyOf: - type: object properties: numerator: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. denominator: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. floor: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. required: - numerator - denominator - floor additionalProperties: false - type: 'null' required: - fills - filledQuantityBaseUnits - unfilledQuantityBaseUnits - unspentBaseUnits - averageExecutionPriceTick - worstExecutionPriceTick - expectedReceivedQuantityBaseUnits - expectedProceedsBaseUnits - totalFeeBaseUnits - requiredCollateralBaseUnits - currentSpendableBaseUnits - priceImpactBps additionalProperties: false spendable: oneOf: - type: object properties: status: type: string enum: - available basis: type: string enum: - wallet_collateral - sellable_position amountBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. confirmedWalletBalanceBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. activeCollateralHoldsBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. matchedBuyObligationsBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. openSellHoldsBaseUnits: anyOf: - type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. - type: 'null' matchedSellObligationsBaseUnits: anyOf: - type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. - type: 'null' pendingDepositsBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. pendingOutflowsBaseUnits: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. custodyOperationActive: type: boolean settlementTokenId: type: string pattern: ^[0-9a-f]{64}$ evaluatedAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ required: - status - basis - amountBaseUnits - confirmedWalletBalanceBaseUnits - activeCollateralHoldsBaseUnits - matchedBuyObligationsBaseUnits - openSellHoldsBaseUnits - matchedSellObligationsBaseUnits - pendingDepositsBaseUnits - pendingOutflowsBaseUnits - custodyOperationActive - settlementTokenId - evaluatedAt additionalProperties: false - type: object properties: status: type: string enum: - unauthenticated required: - status additionalProperties: false - type: object properties: status: type: string enum: - unavailable required: - status additionalProperties: false - type: object properties: status: type: string enum: - wallet_account_not_found required: - status additionalProperties: false bookVersion: type: string pattern: ^(0|[1-9][0-9]*)$ description: >- Exact token base-unit quantity encoded as canonical JSON string. streamCursor: type: string quotedAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ expiresAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ warnings: type: array items: type: object properties: code: type: string enum: - SELF_MATCH_EXCLUSION_UNAVAILABLE - MARKET_PAUSED - MARKET_CLOSED - MARKET_SETTLEMENT_NOT_READY - NO_EXECUTABLE_LIQUIDITY - ZERO_AFFORDABLE_QUANTITY - BELOW_MIN_NOTIONAL - FEE_CAP_BELOW_VENUE_RATE - VALUE_EXCEEDS_PROTOCOL_RANGE - PARTIAL_FILL - COST_BOUND_LIMITED - NOTIONAL_CAP_LIMITED - FILL_SIMULATION_LIMIT - WALLET_SESSION_REQUIRED_FOR_SPENDABLE - SPENDABLE_UNAVAILABLE - WALLET_ACCOUNT_NOT_FOUND - INSUFFICIENT_SPENDABLE message: type: string minLength: 1 required: - code - message additionalProperties: false guaranteed: type: boolean enum: - false required: - marketAddress - marketId - request - estimate - spendable - bookVersion - streamCursor - quotedAt - expiresAt - warnings - guaranteed additionalProperties: false '400': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '403': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '404': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '409': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '429': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '500': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false '503': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string description: Machine-readable error code (snake_case). message: type: string description: Human-readable error message. requestId: type: string description: >- Per-request correlation id. Include it when reporting an error to Aura. details: {} required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false security: - {} - DeveloperKey: [] - SessionCookie: [] - SessionBearer: [] - DeveloperKey: [] SessionCookie: [] - DeveloperKey: [] SessionBearer: [] components: securitySchemes: SessionCookie: type: apiKey in: cookie name: aura_session description: >- HttpOnly session cookie set by POST /v1/auth/session. Mutating requests must also send the CSRF token (returned by that call) in the x-csrf-token header. SessionBearer: type: http scheme: bearer bearerFormat: JWT description: >- The same wallet-bound session JWT returned only when POST /v1/auth/session uses issueToken=true. Intended for server-side/scripted clients; cookie CSRF does not apply. DeveloperKey: type: apiKey in: header name: x-aura-developer-key description: >- Builder identity and quota key. It never substitutes for a wallet session or restricted trading authorization and can never sign or custody assets. ````