Annalist Prices API
The prices API from Annalist — 2 operation(s) for prices.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Annalist Dev Prices 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 prices 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: Prices
paths:
/v1/prices/service:
get:
operationId: prices_service
tags:
- Prices
summary: How has this x402 service's pricing changed, and is it cheap or expensive for…
description: 'Price history of an x402 service by host or URL: each listed endpoint''s price, first-seen date and changes, price changes in 30 days (raised, lowered, delisted), the prices it actually quoted when we called it, and where it sits against similar services by category (market median and percentile). Signed.'
x-price: $0.01
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.010000'
protocols:
- x402: {}
parameters:
- name: host
in: query
required: false
schema:
type: string
description: host name, for example api.example.com
- name: url
in: query
required: false
schema:
type: string
description: or any URL on the service
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:
host: api.example.com
listed:
median_usdc: 0.01
changes_30d:
raised: 1
vs_market:
- tag: search
market_median_usdc: 0.0095
percentile: 0.62
'402':
description: Payment required (x402 v2, USDC on Base or Solana)
servers:
- url: https://api.annalist.dev
/v1/prices/benchmarks:
get:
operationId: prices_benchmarks
tags:
- Prices
summary: What do x402 services usually charge for this kind of call, and is this price…
description: 'Price benchmarks for x402 services by category (seller tags such as search, llm, weather, market-data): how many services, price percentiles (each service counted once, at its median), and 7- and 30-day trends. Add price= to see where a price sits. Without tag: every category. Signed.'
x-price: $0.01
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.010000'
protocols:
- x402: {}
parameters:
- name: tag
in: query
required: false
schema:
type: string
description: category, for example search, llm, weather
- name: price
in: query
required: false
schema:
type: string
description: a price in USDC to place within the category, for example 0.02
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:
tag: search
services: 88
price_usdc:
p25: 0.0035
median: 0.0095
p75: 0.02
price_check:
price_usdc: 0.02
percentile: 0.74
verdict: above the median
'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