WritersLogic Verifiable AI Agent Hub Redirect Credential Check API
The Redirect Credential Check API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for redirect credential check.
Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/writerslogic-com:writerslogic-com-redirect-credential-check-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Redirect Credential…
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: Redirect Credential Check
paths:
/api/v1/redirect-credential-check:
post:
operationId: redirect_credential_check
summary: Redirect chain credential-leak check
description: 'Walks a supplied HTTP redirect chain (up to 25 hops of status + Location) for an agent or HTTP client author and reports, per hop, which of the request''s header names (Authorization, Cookie, Proxy-Authorization, API-key-like, Referer) are stripped or still forwarded, the method after the hop (301/302 POST to GET, 303, 307/308), whether the hop crosses origin, scheme, or registrable domain, an https to http downgrade, a loop, or the 20-redirect Fetch limit. Takes header NAMES only, never values. Does NOT perform any request, resolve DNS, or know your client''s real behaviour beyond the Fetch Standard default (strip Authorization on a changed origin) and the strip list you declare.
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/redirect-credential-check
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- requestUrl
- requestHeaderNames
- hops
properties:
requestUrl:
type: string
maxLength: 2048
description: Initial absolute URL.
method:
type: string
enum:
- GET
- HEAD
- POST
- PUT
- PATCH
- DELETE
description: Initial request method. Default GET.
requestHeaderNames:
type: array
maxItems: 40
items:
type: string
maxLength: 100
description: Names of headers on the initial request. Never send values.
hops:
type: array
minItems: 1
maxItems: 25
items:
type: object
required:
- status
- location
additionalProperties: false
properties:
status:
type: integer
enum:
- 301
- 302
- 303
- 307
- 308
location:
type: string
maxLength: 2048
description: Location header value; relative references resolve against the previous URL.
clientStripsOnCrossOrigin:
type: array
maxItems: 40
items:
type: string
maxLength: 100
description: 'Header names your client deletes on an origin change. Default: ["authorization"], the Fetch Standard rule.'
publicSuffixes:
type: array
maxItems: 200
items:
type: string
maxLength: 100
description: Extra public suffixes for registrable-domain decisions.
example:
requestUrl: https://api.example.com/v1/report
method: POST
requestHeaderNames:
- Authorization
- Content-Type
- X-Api-Key
hops:
- status: 307
location: https://cdn.example.net/report
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.'
hops:
type: array
items:
type: object
properties:
index:
type: integer
status:
type: integer
from:
type: string
to:
type: string
methodAfter:
type: string
sameOrigin:
type: boolean
sameRegistrableDomain:
type: boolean
schemeChange:
type: boolean
downgrade:
type: boolean
stripped:
type: array
items:
type: object
properties:
header:
type: string
basis:
type: string
forwarded:
type: array
items:
type: string
leaks:
type: array
items:
type: object
properties:
header:
type: string
reason:
type: string
finalUrl:
description: URL after the last hop, or null if a hop could not be resolved.
redirectCount:
type: integer
crossesRegistrableDomain:
type: boolean
crossesScheme:
type: boolean
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:
- Redirect Credential Check
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