WritersLogic Verifiable AI Agent Hub Metar Parse API
The Metar Parse API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for metar parse.
The Metar Parse API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for metar parse.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Metar Parse 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: Metar Parse
paths:
/api/v1/metar-parse:
post:
operationId: metar_parse
summary: METAR / SPECI decoder with flight category
description: 'Decodes up to 20 METAR or SPECI aviation weather reports (US and ICAO forms: wind with gusts and variable direction, visibility in statute miles or metres, CAVOK, RVR, present weather, cloud layers, temperature/dew point, altimeter, trend, RMK remarks) into structured fields and computes the FAA flight category (LIFR/IFR/MVFR/VFR). Every token it cannot decode is returned with its character offset and the status is unknown, never silently dropped; remark text it does not recognise is kept raw and does not change the status. Does not fetch weather, decode TAFs, or interpret forecasts. Reports must be uppercase as transmitted.
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: business
x-sample-url: https://agents.writerslogic.com/api/v1/samples/metar-parse
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- reports
properties:
reports:
type: array
items:
type: string
maxLength: 2000
description: One METAR or SPECI report, optionally ending in '='.
maxItems: 20
minItems: 1
description: Reports to decode.
claims:
type: array
items:
type: object
required:
- report
properties:
report:
type: integer
minimum: 0
maximum: 19
description: Index into reports.
flightCategory:
type: string
enum:
- LIFR
- IFR
- MVFR
- VFR
temperatureC:
type: number
description: Claimed air temperature, Celsius.
dewpointC:
type: number
description: Claimed dew point, Celsius.
windSpeed:
type: number
description: Claimed mean wind speed in the report's own unit.
maxItems: 100
description: Optional claims to verify against the decoded report.
example:
reports:
- METAR KPIT 091955Z COR 22015G25KT 3/4SM R28L/2600FT TSRA OVC010CB 18/16 A2992 RMK SLP045 T01820159
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.'
reports:
type: array
items:
type: object
properties:
index:
type: integer
type:
type: string
enum:
- METAR
- SPECI
station:
type: string
day:
type: integer
hour:
type: integer
minute:
type: integer
modifier:
type: string
enum:
- AUTO
- COR
- NIL
temperatureC:
type: number
dewpointC:
type: number
flightCategory:
type: string
enum:
- LIFR
- IFR
- MVFR
- VFR
description: Present only when visibility and sky condition both parsed.
flightCategoryReason:
type: string
description: Why no flight category was computed.
ceilingFt:
description: Lowest broken/overcast/vertical-visibility height in feet, or the string none.
visibilityStatuteMiles:
type: number
unparsedTokens:
type: array
items:
type: object
properties:
token:
type: string
offset:
type: integer
section:
type: string
parser:
type: string
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:
- Metar Parse
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