WritersLogic Verifiable AI Agent Hub Csv Dialect API
The Csv Dialect API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for csv dialect.
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OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Csv Dialect 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: Csv Dialect
paths:
/api/v1/csv-dialect:
post:
operationId: csv_dialect
summary: Detect a CSV file's delimiter, quote, header row and broken header names
description: 'Detects the delimiter (comma, semicolon, tab, pipe), quote character, line terminator, BOM, header row offset (preamble lines above the header) and whether a header exists in CSV text, parsed per RFC 4180 so quoted delimiters and CRLF inside quoted fields are handled. Returns every candidate dialect with its score, each ragged row with its physical line, and header repairs (empty, duplicate or BOM-polluted names, with the deterministic replacement). Reports `unknown` when two dialects fit equally well or the file has a single column, instead of guessing. For agents about to parse an unfamiliar export. It does not coerce types or fix data rows; use csv-roundtrip for type and spreadsheet hazards.
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/csv-dialect
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- text
properties:
text:
type: string
maxLength: 200000
description: CSV text, up to 200000 characters. Detection samples the first 50000; structure checks cover all of it.
example:
text: 'Export 2026-11-04
id;name;note
007;Ann;"a;b"
008;Bob;ok
'
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.'
dialect:
anyOf:
- type: object
properties:
delimiter:
type: string
quote:
type: string
escape:
type: string
description: doubled-quote (RFC 4180).
lineTerminator:
type: string
enum:
- CRLF
- LF
- CR
- mixed
- none
bom:
type: boolean
endsWithNewline:
type: boolean
- type: 'null'
candidates:
type: array
items:
type: object
properties:
delimiter:
type: string
quote:
type: string
rows:
type: integer
fieldCount:
type: integer
consistentRows:
type: integer
consistency:
type: number
score:
type: number
columns:
anyOf:
- type: integer
- type: 'null'
preambleRows:
anyOf:
- type: integer
description: Rows above the header that do not have the modal field count (titles, notes).
- type: 'null'
headerRow:
anyOf:
- type: integer
description: 0-based row index of the header among parsed rows.
- type: 'null'
headerLine:
anyOf:
- type: integer
description: 1-based physical line of the header.
- type: 'null'
hasHeader:
type: string
enum:
- 'yes'
- 'no'
- unknown
header:
anyOf:
- type: object
properties:
names:
type: array
items:
type: string
repaired:
type: array
items:
type: string
repairs:
type: array
items:
type: object
properties:
index:
type: integer
from:
type: string
to:
type: string
reason:
type: string
- type: 'null'
raggedRows:
type: array
items:
type: object
properties:
row:
type: integer
line:
type: integer
expected:
type: integer
actual:
type: integer
ambiguity:
anyOf:
- type: string
- type: 'null'
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:
- Csv Dialect
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