Annalist Outcomes API
The outcomes API from Annalist — 2 operation(s) for outcomes.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Annalist Dev Outcomes API
version: 0.9.0
x-guidance: 'Annalist sells signed data for agents, priced per call over x402 (USDC on Base or Solana). Start with the free GET /v1/catalog: every paid route with the question it answers, its price and an example. Hyperliquid in one call: GET /v1/perp/full?coin=BTC (crowd state, smart-money positioning, liquidation levels). Before paying an x402 service: GET /v1/checks/service?host=, or the free GET /v1/verify/attestation?host=. Before connecting an MCP server: GET /v1/mcp/server?url=, or the free GET /v1/verify/mcp?url=. Before an agent shops on a site: the free GET /v1/verify/store?domain=, or GET /v1/web/readiness?domain=. Every answer is Ed25519-signed; the key is at /.well-known/annalist-key.json. Not investment advice.'
description: 'Operations tagged outcomes across 2 of this provider''s published API definitions: annalist-dev-openapi.json, openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.annalist.dev
tags:
- name: Outcomes
paths:
/v1/outcomes/list:
get:
operationId: outcomes_list
tags:
- Outcomes
summary: What are the live prediction-market odds on Hyperliquid (sports, prices, IPOs…
description: 'Every live Hyperliquid outcome (prediction) market: readable title, category (sports, price, ipo, policy_rate, awards), deadline, each side''s price as implied probability with its 24h change, and 24h volume, most traded first. Filter with category and q (text search). On-chain data. Signed. Not investment advice.'
x-price: $0.02
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.020000'
protocols:
- x402: {}
parameters:
- name: category
in: query
required: false
schema:
type: string
enum:
- sports
- price
- ipo
- policy_rate
- awards
- other
- name: q
in: query
required: false
schema:
type: string
description: text to find in titles, for example Fed or Anthropic
responses:
'200':
description: Signed data
content:
application/json:
schema:
type: object
required:
- as_of
- data
- signature
properties:
as_of:
type: string
format: date-time
data:
type: object
method:
type: object
request_id:
type: string
stale:
type: boolean
sources:
type: array
items:
type: string
notice:
type: string
key_id:
type: string
signature:
type: string
description: Ed25519 over RFC 8785 canonical JSON of {as_of, data, method, request_id}
signature_info:
type: string
example:
data:
summary:
markets: 327
outcomes:
- id: 8573
title: Anthropic first-day market cap above $1500B
implied_probability: 0.81
volume_24h_usd: 318704
'402':
description: Payment required (x402 v2, USDC on Base or Solana)
servers:
- url: https://api.annalist.dev
/v1/outcomes/market:
get:
operationId: outcomes_market
tags:
- Outcomes
summary: What are the odds for this prediction market, and how have they moved this week?
description: 'One Hyperliquid outcome (prediction) market by id: readable title, structured details (teams, thresholds, deadlines, official source), each side''s implied probability, 24h change, volume and outstanding value, its question, and a week of hourly prices per side. Ids come from /v1/outcomes/list. Signed. Not investment advice.'
x-price: $0.01
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.010000'
protocols:
- x402: {}
parameters:
- name: id
in: query
required: true
schema:
type: string
pattern: ^[0-9]+$
description: outcome id
responses:
'200':
description: Signed data
content:
application/json:
schema:
type: object
required:
- as_of
- data
- signature
properties:
as_of:
type: string
format: date-time
data:
type: object
method:
type: object
request_id:
type: string
stale:
type: boolean
sources:
type: array
items:
type: string
notice:
type: string
key_id:
type: string
signature:
type: string
description: Ed25519 over RFC 8785 canonical JSON of {as_of, data, method, request_id}
signature_info:
type: string
example:
data:
id: 8573
title: Anthropic first-day market cap above $1500B
sides:
- name: 'Yes'
price: 0.81
'402':
description: Payment required (x402 v2, USDC on Base or Solana)
servers:
- url: https://api.annalist.dev
x-refined-from:
- annalist-dev-openapi.json
- openapi.json