Priorflow Intelligent Agent/Service Selector API

aid: agentopt-app:priorflow-select-api
name: Priorflow Intelligent Agent/Service Selector API
description: 'One operation: POST /v1/select with JSON {query, top_n?, constraints?, weights?, caller_agent?}
  returns ordered MCP/A2A candidates with an absolute 0-1 hybrid-fit score (0.55 usable, 0.72+ strong).
  Free tier needs no key (non-empty User-Agent required) and returns id, score, score_band, name with
  top_n <= 5; a paid pf_live_ key sent as X-API-Key or Authorization Bearer unlocks source_url, endpoint/connect,
  homepage_url, endpoint_status, tags, dimensions, recommendation, clarifications and score_breakdown
  with top_n <= 20. Invalid keys 401; paid features without a key 402 upgrade_required; free-tier exhaustion
  429 with a machine-readable upgrade object. Described only by the A2A agent card''s priorflow.api block
  — no OpenAPI is published; robots.txt disallows /v1/ to crawlers.'
humanURL: https://agentopt.app/info
baseURL: https://agentopt.app/v1
tags:
- AI Agents
- Agent Discovery
- Agent Selection
- A2A
- MCP
properties:
- type: Documentation
  url: https://agentopt.app/info
- type: GettingStarted
  url: https://agentopt.app/info#integrate
- type: Playground
  url: https://agentopt.app/try
- type: AgentCard
  url: a2a/agentopt-app-a2a.yml
- type: AgentCard
  name: A2A Agent Card (provider-hosted)
  url: https://agentopt.app/.well-known/agent-card.json
- type: Authentication
  url: authentication/agentopt-app-authentication.yml
- type: Conventions
  url: conventions/agentopt-app-conventions.yml
- type: ErrorCatalog
  url: errors/agentopt-app-problem-types.yml
- type: RateLimits
  url: rate-limits/agentopt-app-rate-limits.yml
- type: Plans
  url: plans/agentopt-app-plans-pricing.yml
- type: Sandbox
  url: sandbox/agentopt-app-sandbox.yml
- type: Conformance
  url: conformance/agentopt-app-conformance.yml
- type: Lifecycle
  url: lifecycle/agentopt-app-lifecycle.yml
overlays: []