DELTA Witness — Trust Layer for Autonomous Actions preflight autonomous action API
The preflight autonomous action API from DELTA Witness — Trust Layer for Autonomous Actions — 1 operation(s) for preflight autonomous action.
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OpenAPI Specification
openapi: 3.2.0
info:
title: DELTA Witness — Trust Layer for Autonomous Actions…
version: 0.7.0
description: Browser verification and page-state proof for public sources, plus deterministic preflight checks before an autonomous action. DELTA proves observation and change, not truth.
contact:
name: DELTA Witness
email: ruphussten@163.com
url: https://delta-witness-api.ruphussten.workers.dev/docs
x-guidance: Call GET /v1/quote before budgeting. Capture preserves a public observation; Guard compares one with deterministic expectations; Guarded-Action Pilot bundles 1-3 public URL proofs for exactly $10. Runtime HTTP 402 payment requirements are authoritative.
servers:
- url: https://delta-witness-api.ruphussten.workers.dev
tags:
- name: preflight autonomous action
paths:
/v1/preflight:
post:
operationId: preflightAutonomousAction
summary: Preflight a public source before an autonomous action
description: 'Verify page state before an agent executes a consequential autonomous action. Returns safe/changed/reason/diff plus a proof reference. Current calculated price: $5.'
tags:
- preflight autonomous action
security: []
x-payment-info:
price:
mode: fixed
currency: USD
amount: '5'
protocols:
- x402: {}
network: eip155:8453
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
properties:
url:
type: string
pattern: ^https?://
description: Public HTTP(S) source to observe before an action.
prior_proof_id:
type: string
pattern: ^[0-9a-fA-F-]{36}$
description: Optional DELTA proof to use as the hash baseline.
expected:
type: object
additionalProperties: false
properties:
html_sha256:
type: string
pattern: ^sha256:[0-9a-f]{64}$
markdown_sha256:
type: string
pattern: ^sha256:[0-9a-f]{64}$
contains:
type: array
maxItems: 10
items:
type: string
maxLength: 200
excludes:
type: array
maxItems: 10
items:
type: string
maxLength: 200
freshness_seconds:
type: integer
minimum: 0
maximum: 2592000
required:
- url
responses:
'200':
description: Paid observation delivered
content:
application/json:
schema:
type: object
required:
- ok
- product
- proof_id
- manifest_url
- public_proof_url
- bundle_root
- observed_at
properties:
ok:
const: true
product:
enum:
- capture
- preflight
proof_id:
type: string
pattern: ^[0-9a-fA-F-]{36}$
manifest_url:
type: string
pattern: ^https?://
public_proof_url:
type: string
pattern: ^https?://
bundle_root:
type: string
observed_at:
type: string
safe:
type:
- boolean
- 'null'
changed:
type:
- boolean
- 'null'
reason:
type: string
diff:
type: object
idempotent_replay:
type: boolean
'202':
description: An identical settled fulfillment is already in progress
'400':
description: Request rejected
content:
application/json:
schema:
type: object
properties:
error:
type: string
'402':
description: x402 v2 payment required or settlement failed
'409':
description: Payment replay attempted with a different request
'413':
description: Request rejected
content:
application/json:
schema:
type: object
properties:
error:
type: string
'502':
description: Settled observation failed; identical retry remains idempotent