Vigil Agent API
The Agent API from Vigil — 13 operation(s) for agent.
The Agent API from Vigil — 13 operation(s) for agent.
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openapi: 3.2.0
info:
title: Vigil Agent API
version: 2026.09.15
description: 'Public endpoints for agents on blvigil.com, including checkout: UCP and ACP sessions answer requires_escalation with a continue_url where the buyer pays on the Stripe-hosted checkout page. No credentials; rate limited per client. Registration statement: https://blvigil.com/auth.md.'
contact:
url: https://blvigil.com/support
servers:
- url: https://blvigil.com
tags:
- name: Agent
paths:
/agent/site.json:
get:
operationId: siteInfo
summary: Site identity and every discovery link
responses:
'200':
description: Site info
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/search:
get:
operationId: searchPages
summary: Search the sitemap for pages by words in the URL path
parameters:
- name: q
in: query
required: true
schema:
type: string
- name: limit
in: query
schema:
type: integer
minimum: 1
maximum: 50
default: 20
responses:
'200':
description: Matching pages
content:
application/json:
schema:
type: object
properties:
query:
type: string
count:
type: integer
results:
type: array
items:
type: object
properties:
url:
type: string
score:
type: integer
tags:
- Agent
/agent/read:
get:
operationId: readPage
summary: Read one page on this host as Markdown or stripped text
parameters:
- name: url
in: query
required: true
schema:
type: string
format: uri
responses:
'200':
description: Page content
content:
application/json:
schema:
type: object
properties:
url:
type: string
status:
type: integer
format:
type: string
enum:
- markdown
- text
content:
type: string
truncated:
type: boolean
tags:
- Agent
/agent/commerce/products:
get:
operationId: listProducts
summary: Everything agents can buy here, with Stripe-verified prices and live…
responses:
'200':
description: Catalog
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/ucp/checkout-sessions:
post:
operationId: ucpCreateCheckout
summary: 'UCP: create a checkout session for one offer (answers requires_escalation with…'
parameters:
- name: Idempotency-Key
in: header
schema:
type: string
requestBody:
required: true
content:
application/json:
schema:
type: object
example:
line_items:
- item:
id: vigil-mac
quantity: 1
responses:
'201':
description: Checkout session
content:
application/json:
schema:
type: object
'400':
description: Unknown item or invalid quantity
tags:
- Agent
/agent/commerce/ucp/checkout-sessions/{id}:
get:
operationId: ucpGetCheckout
summary: 'UCP: read a checkout session'
parameters:
- name: id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
put:
operationId: ucpUpdateCheckout
summary: 'UCP: replace the line item'
parameters:
- name: id
in: path
required: true
schema:
type: string
requestBody:
required: true
content:
application/json:
schema:
type: object
example:
line_items:
- item:
id: vigil-mac
quantity: 1
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/ucp/checkout-sessions/{id}/complete:
post:
operationId: ucpCompleteCheckout
summary: 'UCP: payment is not taken here; returns the session with its continue_url'
parameters:
- name: id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/ucp/checkout-sessions/{id}/cancel:
post:
operationId: ucpCancelCheckout
summary: 'UCP: cancel a checkout session'
parameters:
- name: id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/acp/checkout_sessions:
post:
operationId: acpCreateCheckoutSession
summary: 'ACP: create a checkout session for one offer (answers requires_escalation with…'
parameters:
- name: Idempotency-Key
in: header
schema:
type: string
requestBody:
required: true
content:
application/json:
schema:
type: object
example:
line_items:
- id: vigil-mac
responses:
'201':
description: Checkout session
content:
application/json:
schema:
type: object
'400':
description: invalid_request
tags:
- Agent
/agent/commerce/acp/checkout_sessions/{checkout_session_id}:
get:
operationId: acpGetCheckoutSession
summary: 'ACP: read a checkout session'
parameters:
- name: checkout_session_id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
post:
operationId: acpUpdateCheckoutSession
summary: 'ACP: update the line item'
parameters:
- name: checkout_session_id
in: path
required: true
schema:
type: string
requestBody:
required: true
content:
application/json:
schema:
type: object
example:
line_items:
- id: vigil-mac
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/acp/checkout_sessions/{checkout_session_id}/complete:
post:
operationId: acpCompleteCheckoutSession
summary: 'ACP: delegated payment is not accepted; returns the session with its…'
parameters:
- name: checkout_session_id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/acp/checkout_sessions/{checkout_session_id}/cancel:
post:
operationId: acpCancelCheckoutSession
summary: 'ACP: cancel a checkout session'
parameters:
- name: checkout_session_id
in: path
required: true
schema:
type: string
responses:
'200':
description: Checkout session
content:
application/json:
schema:
type: object
tags:
- Agent
/agent/commerce/continue/{checkout_id}:
get:
operationId: continueCheckout
summary: 'Buyer handoff: 303 redirect to this store''s checkout for the session'
parameters:
- name: checkout_id
in: path
required: true
schema:
type: string
responses:
'303':
description: Redirect to checkout
'404':
description: Unknown session
'409':
description: Offer not currently sold
'410':
description: Canceled or expired
tags:
- Agent