API Evangelist

API Evangelist Account API

GitHub sign-in, API key, and Stripe self-serve billing.

GitHub OpenAPI

Operations 3

GET /auth/login Sign in with GitHub #
GET /auth/me Current account #
POST /billing/checkout Start a Pro/Team checkout #

Documentation

📖
Documentation
https://developer.apievangelist.com
📖
APIReference
https://developer.apievangelist.com/api
📖
RateLimits
https://developer.apievangelist.com/plans/
📖
APIReference
https://developer.apievangelist.com/governance-api

Specifications

⚙
OpenAPI
https://artifacts.apis.io/api-evangelist/openapi/api-evangelist-account-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/index.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/Doc.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/Area.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/PagedEnvelope.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/SearchEnvelope.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/Engage.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/ContactOption.yml
📊
JSONSchema
https://artifacts.apis.io/api-evangelist/schema/Error.yml

Other Resources

🔗
Pricing
https://developer.apievangelist.com/plans/

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

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Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

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OpenAPI Specification

api-evangelist-account-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Evangelist Governance & Discovery Account API
  version: 1.0.0
  description: The API Commons governance and discovery tools — lint, coverage, waivers, reporting, certification, agent export, pipeline audit, MCP/skill forging, consumer gating, reusability, and experience mapping — as one hosted REST API.
  contact:
    name: API Evangelist
    url: https://apievangelist.com
    email: info@apievangelist.com
servers:
- url: https://api.apievangelist.com/v1
  description: Production
security:
- ApiKey: []
- {}
tags:
- name: Account
  description: GitHub sign-in, API key, and Stripe self-serve billing.
paths:
  /auth/login:
    get:
      tags:
      - Account
      summary: Sign in with GitHub
      description: Start GitHub OAuth. On return you get a session cookie and a personal API key (free tier) attached to your account.
      security:
      - {}
      responses:
        '302':
          description: Redirect to GitHub.
      operationId: authLogin
  /auth/me:
    get:
      tags:
      - Account
      summary: Current account
      description: Your login, tier, API key, base URLs, and recent usage. Requires the session cookie from sign-in.
      responses:
        '200':
          description: Account.
          content:
            application/json:
              schema:
                type: object
                properties:
                  login:
                    type: string
                  tier:
                    type: string
                  apiKey:
                    type: string
          headers:
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimitPolicy'
            X-RateLimit-Limit:
              $ref: '#/components/headers/XRateLimitLimit'
            X-RateLimit-Window:
              $ref: '#/components/headers/XRateLimitWindow'
            X-RateLimit-Tier:
              $ref: '#/components/headers/XRateLimitTier'
        '401':
          description: Not authenticated.
      operationId: authMe
  /billing/checkout:
    post:
      tags:
      - Account
      summary: Start a Pro/Team checkout
      description: 'Create a Stripe Checkout session for {tier: pro|business, cycle: monthly|annual}. On completion your API key is moved onto the tier usage plan.'
      responses:
        '200':
          description: Checkout URL.
          content:
            application/json:
              schema:
                type: object
                properties:
                  url:
                    type: string
          headers:
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimitPolicy'
            X-RateLimit-Limit:
              $ref: '#/components/headers/XRateLimitLimit'
            X-RateLimit-Window:
              $ref: '#/components/headers/XRateLimitWindow'
            X-RateLimit-Tier:
              $ref: '#/components/headers/XRateLimitTier'
        '401':
          description: Not authenticated.
      operationId: billingCheckout
components:
  headers:
    XRateLimitWindow:
      description: The quota window in seconds. Always 86400 (one day).
      schema:
        type: integer
        examples:
        - 86400
    RateLimitPolicy:
      description: 'The rate-limit policy in force for the tier that served this response, in RFC 9331 quota-policy syntax: `"quota";q=1000;w=86400, "burst";q=5;w=1` — a daily quota and a per-second burst. This is the POLICY, not a live counter: `RateLimit-Remaining` and `RateLimit-Reset` are deliberately not sent, because the quota is enforced by the gateway and there is no per-key usage accounting to read. Pace against the policy, and treat a 429 as authoritative.'
      schema:
        type: string
        examples:
        - '"quota";q=1000;w=86400, "burst";q=5;w=1'
    XRateLimitLimit:
      description: The daily request quota for the tier that served this response.
      schema:
        type: integer
        examples:
        - 1000
    XRateLimitTier:
      description: The tier this request was served on — `free`, `pro`, `business`, `internal` or `owner`. Keyless requests are `free`; requests from an apievangelist.com origin are `internal`.
      schema:
        type: string
        examples:
        - free
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: A Pro or Team key from sign-in. Omit for keyless free-tier access.
x-apis-io:
  mcpServer: https://mcp.apievangelist.com
  agentSkills: https://raw.githubusercontent.com/api-commons/agent-skills/main/
  operations:
    validate:
      tier: free
      mcpTool: validate_api
      agentSkill: api-governance
    coverage:
      tier: free
      mcpTool: api_coverage
      agentSkill: api-governance
    waivers:
      tier: free
      mcpTool: reconcile_waivers
      agentSkill: api-governance
    report:
      tier: free
      mcpTool: governance_report
      agentSkill: api-governance
    verify:
      tier: free
      mcpTool: verify_certificate
      agentSkill: api-governance
    classify:
      tier: free
      mcpTool: classify_api_fields
      agentSkill: api-agent-readiness
    diff:
      tier: free
      mcpTool: diff_api_versions
      agentSkill: api-governance
    scorecard:
      tier: free
      mcpTool: api_scorecard
      agentSkill: api-governance
    deprecation:
      tier: free
      mcpTool: deprecation_posture
      agentSkill: api-governance
    mock:
      tier: pro
      mcpTool: mock_payloads
      agentSkill: api-governance
    snippets:
      tier: pro
      mcpTool: code_snippets
      agentSkill: api-governance
    rules:
      tier: free
      mcpTool: find_governance_rules
      agentSkill: api-governance
    rulesets:
      tier: free
      mcpTool: find_rulesets
      agentSkill: api-governance
    certify:
      tier: pro
      mcpTool: certify_api
      agentSkill: api-governance
    agentExport:
      tier: pro
      mcpTool: export_agent_rules
      agentSkill: api-governance
    pipelineAudit:
      tier: pro
      mcpTool: audit_pipeline
      agentSkill: api-governance
    toolsmith:
      tier: pro
      mcpTool: forge_mcp_tools
      agentSkill: api-agent-readiness
    contextGate:
      tier: pro
      mcpTool: gate_agent_context
      agentSkill: api-agent-readiness
    overlay:
      tier: pro
      mcpTool: apply_overlay
      agentSkill: api-governance
    reusability:
      tier: pro
      mcpTool: score_reusability
      agentSkill: api-governance
    onboarding:
      tier: free
      mcpTool: validate_onboarding
      agentSkill: api-agent-readiness
    agentDescriptor:
      tier: pro
      mcpTool: generate_agent_descriptor
      agentSkill: api-agent-readiness
    experience:
      tier: pro
      mcpTool: map_api_experience
      agentSkill: api-agent-readiness