WritersLogic Verifiable AI Agent Hub Url Canonicalize API

The Url Canonicalize API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for url canonicalize.

GitHub OpenAPI

Operations 1

POST /api/v1/url-canonicalize URL canonicalizer and lookalike-host check #

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OpenAPI Specification

writerslogic-com-url-canonicalize-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: WritersLogic Verifiable AI Agent Hub Url Canonicalize API
  version: 2.0.0
  description: Pay-per-call agents settled in USDC on Base via x402. Every response carries a signed provenance envelope.
  contact:
    name: WritersLogic
    url: https://writerslogic.com/agents
    email: agents@writerslogic.com
servers:
- url: https://agents.writerslogic.com
tags:
- name: Url Canonicalize
paths:
  /api/v1/url-canonicalize:
    post:
      operationId: url_canonicalize
      summary: URL canonicalizer and lookalike-host check
      description: 'Canonicalizes up to 50 absolute http(s) URLs for an agent about to fetch, dedupe or click them: WHATWG-parsed lowercase host, default port and fragment and userinfo removed, dot segments and unreserved percent-escapes normalized, tracking parameters (utm_*, gclid, fbclid and the Mozilla strip list plus yours) removed, and flags userinfo@host tricks, backslash and multiple-@ authorities, obfuscated IPv4 hosts, xn-- labels (decoded to Unicode, invalid or ASCII-only punycode, mixed-script hosts via the Unicode safety rules) and open-redirect-shaped parameters (next=, redirect=, url= pointing off-site or at //host or javascript:). Does NOT resolve DNS, fetch anything, follow redirects, or decide that a site is safe; registrable domains use a public-suffix SUBSET plus any suffixes you supply.


        Price: 0.005 USDC on Base (x402).'
      x-x402-price-usdc: '0.005'
      x-x402-amount: '5000'
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.005'
      x-audience: developer
      x-sample-url: https://agents.writerslogic.com/api/v1/samples/url-canonicalize
      security:
      - x402: []
      - apiKey: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              required:
              - urls
              properties:
                urls:
                  type: array
                  minItems: 1
                  maxItems: 50
                  items:
                    type: string
                    maxLength: 2048
                  description: Absolute URLs including the scheme.
                extraTrackingParams:
                  type: array
                  maxItems: 50
                  items:
                    type: string
                    maxLength: 64
                  description: Extra query parameter names to strip (case-insensitive).
                sortQuery:
                  type: boolean
                  description: 'Sort remaining query segments for a dedupe key. Off by default: order can matter to servers.'
                publicSuffixes:
                  type: array
                  maxItems: 200
                  items:
                    type: string
                    maxLength: 100
                  description: Extra public suffixes (e.g. "co.xx") used for registrable-domain decisions.
            example:
              urls:
              - HTTPS://Example.COM:443/a/./b/%7Efoo?utm_source=x&id=7&gclid=abc#top
              - https://paypal.com@evil.example/login
              - https://xn--pple-43d.com/
              - https://shop.example/login?next=https://evil.example/steal
      responses:
        '200':
          description: Paid result with provenance
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      status:
                        type: string
                        enum:
                        - pass
                        - fail
                        - unknown
                        - unsupported
                        description: 'pass: every rule held. fail: a rule was violated (see witnesses). unknown: the input lacks the evidence to decide. unsupported: outside what this engine covers. Missing evidence is never a pass.'
                      items:
                        type: array
                        items:
                          type: object
                          properties:
                            index:
                              type: integer
                            valid:
                              type: boolean
                            canonical:
                              description: Canonical URL, or null when the input does not parse.
                            host:
                              description: ASCII (punycode) host with non-default port.
                            hostUnicode:
                              description: Host with xn-- labels decoded.
                            registrableDomain:
                              description: eTLD+1 from the public-suffix subset plus caller suffixes.
                            removedParams:
                              type: array
                              items:
                                type: string
                            findings:
                              type: array
                              items:
                                type: object
                                properties:
                                  ruleId:
                                    type: string
                                  severity:
                                    type: string
                                    enum:
                                    - info
                                    - warn
                                    - risk
                                  detail:
                                    type: string
                      riskCount:
                        type: integer
                        description: Number of items with at least one risk finding.
                      witnesses:
                        type: array
                        items:
                          type: object
                          properties:
                            ruleId:
                              type: string
                            detail:
                              type: string
                            path:
                              type: string
                              description: JSON pointer or dotted path into the input.
                            offset:
                              type: integer
                            index:
                              type: integer
                            expected:
                              description: What the rule required.
                            actual:
                              description: What the input had.
                      versions:
                        type: object
                        description: Every semantic dependency of this answer (engine, tables and their as-of dates, tokenizer, calendar, rounding profile).
                      limits:
                        type: array
                        items:
                          type: string
                      deterministic:
                        type: boolean
                        description: 'Always true: pure code, no model.'
                  _provenance:
                    type: object
                    description: C2PA-aligned manifest and W3C VC 2.0 (eddsa-jcs-2022) issued by the hub DID; verify at POST /api/v1/verify-provenance
                required:
                - data
                - _provenance
        '400':
          description: Invalid request (no payment consumed)
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
        '401':
          description: Invalid X-API-KEY
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
        '402':
          description: Payment required or invalid
          content:
            application/json:
              schema:
                type: object
                description: x402 v2 PaymentRequired (also base64 in the PAYMENT-REQUIRED header)
                properties:
                  x402Version:
                    type: integer
                  error:
                    type: string
                  code:
                    type: string
                  resource:
                    type: object
                  accepts:
                    type: array
                    items:
                      type: object
                  extensions:
                    type: object
        '502':
          description: Upstream failure; the payment is released or not settled
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  code:
                    type: string
      tags:
      - Url Canonicalize
components:
  securitySchemes:
    x402:
      type: apiKey
      in: header
      name: PAYMENT-SIGNATURE
      description: x402 v2 payment payload (base64) sent after a 402 challenge
    apiKey:
      type: apiKey
      in: header
      name: X-API-KEY