The Log Collapse API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for log collapse.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Log Collapse 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: Log Collapse
paths:
/api/v1/log-collapse:
post:
operationId: log_collapse
summary: Collapse a log into error signatures with counts and first/last occurrence
description: 'Groups the records of a log or CI output by signature: timestamps, UUIDs, IPs, hex ids, quoted values and numbers are replaced by placeholders, stack-trace continuation lines are attached to their record and contribute their first frames, and each signature reports its count, severity, first and last line, first and last timestamp (as written, when the line starts with an ISO 8601 timestamp) and an example. Lets an agent read 5,000 lines as 20 signatures. Does not diagnose causes, parse non-ISO timestamps or understand structured (JSON) logs beyond treating each line as text.
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: agent-infra
x-sample-url: https://agents.writerslogic.com/api/v1/samples/log-collapse
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- text
properties:
text:
type: string
maxLength: 300000
minLength: 1
description: Log text, at most 8000 lines.
topN:
type: integer
minimum: 1
maximum: 100
description: Signatures returned, by count. Default 20.
signatureFrames:
type: integer
minimum: 0
maximum: 10
description: Continuation lines (stack frames) that are part of the signature. Default 3.
minSeverity:
type: string
enum:
- fatal
- error
- warn
- info
- debug
- trace
- unknown
description: 'Ignore records below this severity. Default: keep all.'
example:
text: "2026-11-04T10:00:01Z ERROR db timeout after 3000 ms for user 17\n2026-11-04T10:00:02Z INFO ok\n2026-11-04T10:00:09Z ERROR db timeout after 3001 ms for user 92\n at Pool.query (db.js:41:9)\n2026-11-04T10:00:10Z ERROR db timeout after 2999 ms for user 5\n"
topN: 5
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.'
signatures:
type: array
items:
type: object
additionalProperties: false
properties:
signature:
type: string
count:
type: integer
severity:
type: string
enum:
- fatal
- error
- warn
- info
- debug
- trace
- unknown
firstLine:
type: integer
description: 1-based line number.
lastLine:
type: integer
firstSeen:
type: string
lastSeen:
type: string
example:
type: string
firstSpan:
type: object
description: 'Half-open [start,end) range in four coordinate systems: UTF-16 code units, code points, UTF-8 bytes, extended grapheme clusters (Intl.Segmenter).'
properties:
utf16:
type: object
properties:
start:
type: integer
end:
type: integer
codePoint:
type: object
properties:
start:
type: integer
end:
type: integer
utf8:
type: object
properties:
start:
type: integer
end:
type: integer
grapheme:
type: object
properties:
start:
type: integer
end:
type: integer
graphemeAligned:
type: boolean
maxItems: 100
totals:
type: object
additionalProperties: false
properties:
lines:
type: integer
records:
type: integer
signatures:
type: integer
collapsed:
type: integer
description: records minus signatures.
omittedSignatures:
type: integer
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:
- Log Collapse
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