Agent Newsstand Meta API

The meta API from Agent Newsstand — 11 operation(s) for meta.

Operations 12

GET /health Health #
GET / Root #
GET /manifest.json Manifest #
GET /v1/feedback Feedback Info #
POST /v1/feedback Submit Feedback #
GET /stats/errors Stats Errors #
GET /llms.txt Llms Txt #
GET /llms-full.txt Llms Full Txt #
GET /.well-known/agent-card.json Agent Card #
GET /.well-known/agent.json Agent Card #
GET /robots.txt Robots Txt #
GET /.well-known/x402 Well Known X402 #

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OpenAPI Specification

agentnewsstand-com-meta-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Agent Newsstand Meta API
  description: Market data and web intelligence for autonomous agents. Trading context for tokenized assets (candles, earnings, filings, macro, calendar), plus search, reader, unlock, and URL safety. 15 modules across 5 categories. Per-call USDC micropayments on Base via x402. Free sample twins at /v1/sample/* — inspect before paying. Machine-readable manifest at /.well-known/x402.
  contact:
    name: Agent Newsstand
    email: admin@agentnewsstand.com
  version: 0.2.0
tags:
- name: Meta
paths:
  /health:
    get:
      tags:
      - Meta
      summary: Health
      operationId: health_health_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Health Health Get
      security: []
  /:
    get:
      tags:
      - Meta
      summary: Root
      operationId: root__get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Root  Get
      security: []
  /manifest.json:
    get:
      tags:
      - Meta
      summary: Manifest
      operationId: manifest_manifest_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Manifest Manifest Json Get
      security: []
  /v1/feedback:
    get:
      tags:
      - Meta
      summary: Feedback Info
      description: Agent-facing instructions for the free feedback channel.
      operationId: feedback_info_v1_feedback_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
                title: Response Feedback Info V1 Feedback Get
      security: []
    post:
      tags:
      - Meta
      summary: Submit Feedback
      operationId: submit_feedback_v1_feedback_post
      parameters:
      - name: x-api-key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FeedbackIn'
      responses:
        '201':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
                title: Response Submit Feedback V1 Feedback Post
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security: []
  /stats/errors:
    get:
      tags:
      - Meta
      summary: Stats Errors
      description: 'Error log: what''s failing and why (402s excluded — that''s demand).

        Admin token required.'
      operationId: stats_errors_stats_errors_get
      parameters:
      - name: hours
        in: query
        required: false
        schema:
          type: integer
          default: 24
          title: Hours
      - name: status
        in: query
        required: false
        schema:
          anyOf:
          - type: integer
          - type: 'null'
          title: Status
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
                title: Response Stats Errors Stats Errors Get
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security: []
  /llms.txt:
    get:
      tags:
      - Meta
      summary: Llms Txt
      description: 'llms.txt — the agent-facing index of this service (llmstxt.org).


        Who we are, what costs what, how to pay, where the machines read us.'
      operationId: llms_txt_llms_txt_get
      responses:
        '200':
          description: Successful Response
          content:
            text/plain:
              schema:
                type: string
      security: []
  /llms-full.txt:
    get:
      tags:
      - Meta
      summary: Llms Full Txt
      description: 'Expanded llms.txt: every endpoint with full input schema, example

        input, and response notes — the ''llms-full.txt'' convention some

        crawlers probe.'
      operationId: llms_full_txt_llms_full_txt_get
      responses:
        '200':
          description: Successful Response
          content:
            text/plain:
              schema:
                type: string
      security: []
  /.well-known/agent-card.json:
    get:
      tags:
      - Meta
      summary: Agent Card
      description: 'Agent card (agents.md / A2A-style identity) — who we are, what we

        sell, how to pay, where the schemas live. What agent-crawlers look

        for when classifying a service.'
      operationId: agent_card__well_known_agent_card_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Agent Card  Well Known Agent Card Json Get
      security: []
  /.well-known/agent.json:
    get:
      tags:
      - Meta
      summary: Agent Card
      description: 'Agent card (agents.md / A2A-style identity) — who we are, what we

        sell, how to pay, where the schemas live. What agent-crawlers look

        for when classifying a service.'
      operationId: agent_card__well_known_agent_json_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Agent Card  Well Known Agent Json Get
      security: []
  /robots.txt:
    get:
      tags:
      - Meta
      summary: Robots Txt
      operationId: robots_txt_robots_txt_get
      responses:
        '200':
          description: Successful Response
          content:
            text/plain:
              schema:
                type: string
      security: []
  /.well-known/x402:
    get:
      tags:
      - Meta
      summary: Well Known X402
      description: 'x402 discovery manifest (the shape directories expect).


        Auto-generated from module pricing: every priced route with price,

        description, input example/schema, and payment state. Free while

        payments are disabled; x402scan reads this to auto-register us.'
      operationId: well_known_x402__well_known_x402_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Well Known X402  Well Known X402 Get
      security: []
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    FeedbackIn:
      properties:
        category:
          type: string
          enum:
          - missing_endpoint
          - price
          - output_shape
          - bug
          - other
          title: Category
          default: other
        wanted:
          type: string
          maxLength: 2000
          minLength: 4
          title: Wanted
        context:
          type: string
          maxLength: 4000
          title: Context
          default: ''
        contact:
          type: string
          maxLength: 200
          title: Contact
          default: ''
        willing_to_pay_usdc_micro:
          type: integer
          minimum: 0.0
          title: Willing To Pay Usdc Micro
          default: 0
        prompted_by:
          type: string
          maxLength: 256
          title: Prompted By
          default: ''
      type: object
      required:
      - wanted
      title: FeedbackIn
      description: 'Structured suggestion from an agent (free — no payment required).


        Module scope on purpose: with `from __future__ import annotations`,

        FastAPI resolves parameter hints via get_type_hints (module globals),

        so a closure-local model would degrade to a query param.


        LENIENT BY DESIGN (2026-08-19): 29×422 in 48h showed agents sending

        free-form categories and flexible pay fields — a feedback channel that

        rejects its own well-wishers is a lost-signal machine. Unknown

        categories coerce to "other"; payment-willingness accepts the common

        field spellings and dollar floats. Never reject; always record.'