PublicAPIs.io

Find a public API or data source for a task: use this whenever the user (or your code) needs an API, dataset or third-party service, e.g. weather, geocoding, payments, sports scores, crypto prices, jobs, LLMs. Searches 1,500+ APIs on PublicAPIs.io and returns name, description, category, link and signals (auth: none/api_key/oauth, free_tier, https). Filter with auth="none" for APIs that need no key, free=true, https=true.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "What the API should do, in plain words."
    },
    "category": {
      "type": "string",
      "description": "Optional category name or id, e.g. \"Weather\", \"finance\"."
    },
    "auth": {
      "type": "string",
      "enum": [
        "none",
        "api_key",
        "oauth"
      ],
      "description": "Only APIs with this authentication. \"none\" = no key needed."
    },
    "free": {
      "type": "boolean",
      "description": "Only APIs with a free tier."
    },
    "https": {
      "type": "boolean",
      "description": "Only APIs served over HTTPS."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 20
    }
  }
}

Everything about one API by slug (from search_apis): documentation summary, endpoints, auth, pricing and links. Use before writing integration code.

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string"
    }
  },
  "required": [
    "slug"
  ]
}

Ready-to-run example code for calling an API, in javascript, python or curl. Use when you are about to integrate an API into code. Verified samples are marked verified=true.

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string"
    },
    "language": {
      "type": "string",
      "enum": [
        "javascript",
        "python",
        "curl"
      ]
    }
  },
  "required": [
    "slug"
  ]
}

Compare 2-5 APIs side by side (auth, free tier, HTTPS, pricing, docs summary) to choose one. Pass slugs from search_apis.

{
  "type": "object",
  "properties": {
    "slugs": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "minItems": 2,
      "maxItems": 5
    }
  },
  "required": [
    "slugs"
  ]
}

Ways to get an API listed or sponsored on PublicAPIs.io, with fixed prices, current sponsorship availability and the rules.

{
  "type": "object",
  "properties": {}
}

Open a conversation with the PublicAPIs.io broker agent to list or sponsor an API. Say what you want in plain language and include the API name, website and a contact email if you have them. Returns deal_id and deal_key (keep both; they are needed to continue) and the broker's reply. Every deal is approved by a person before payment.

{
  "type": "object",
  "properties": {
    "message": {
      "type": "string"
    },
    "contact_email": {
      "type": "string",
      "description": "Where approval, payment link and go-live emails are sent."
    },
    "contact_name": {
      "type": "string"
    },
    "company": {
      "type": "string"
    },
    "api_name": {
      "type": "string"
    },
    "website": {
      "type": "string"
    }
  },
  "required": [
    "message",
    "contact_email"
  ]
}

Reply to the broker in an open deal. Returns the broker's answer and the deal status.

{
  "type": "object",
  "properties": {
    "deal_id": {
      "type": "string"
    },
    "deal_key": {
      "type": "string"
    },
    "message": {
      "type": "string"
    }
  },
  "required": [
    "deal_id",
    "deal_key",
    "message"
  ]
}

Status of a deal: negotiating, agreed, awaiting_approval, awaiting_payment (payment_url is included), publishing, live (live_url), rejected. Also returns the last messages.

{
  "type": "object",
  "properties": {
    "deal_id": {
      "type": "string"
    },
    "deal_key": {
      "type": "string"
    }
  },
  "required": [
    "deal_id",
    "deal_key"
  ]
}