Harpd Agent Data

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Live rankings and pricing for 10,000+ AI products and LLMs. Free tier; paid data via x402.

AI & Agents

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Tool list from our last check. Connect live to refresh it.

get_historical_data Read-only

The rank history of one AI product over 3, 6 or 12 months: position over time, rank movement, best and worst position, and the archived period results. This is the one thing a single page view of the board cannot tell an agent — whether a position is rising or falling. PAID: 0.05 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/rank/

productstring, required

Harpd product slug, e.g. "claude".

scopestring

periodstring

categorystring

Tools (7)

get_historical_data

read-only

Argument	Type	Description
scope	string
period	string
product*	string	Harpd product slug, e.g. "claude".
category	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "product"
  ],
  "properties": {
    "scope": {
      "enum": [
        "overall",
        "monthly",
        "weekly"
      ],
      "type": "string",
      "default": "overall"
    },
    "period": {
      "enum": [
        "3m",
        "6m",
        "12m"
      ],
      "type": "string",
      "default": "12m"
    },
    "product": {
      "type": "string",
      "maxLength": 120,
      "minLength": 1,
      "description": "Harpd product slug, e.g. \"claude\"."
    },
    "category": {
      "type": "string",
      "default": "all"
    }
  },
  "additionalProperties": false
}

get_rank

Free Harpd Rank board for any scope and category, in the unified agent envelope. FREE: no payment, no API key, no account required. Canonical: https://harpd.com/rank/

read-only

Argument	Type	Description
limit	integer
scope	string
category	string

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 50,
      "maximum": 100,
      "minimum": 1
    },
    "scope": {
      "enum": [
        "overall",
        "monthly",
        "weekly"
      ],
      "type": "string",
      "default": "overall"
    },
    "category": {
      "type": "string",
      "default": "all"
    }
  },
  "additionalProperties": false
}

harpd_compare

Head-to-head comparison of 2–8 AI products: category, published rank, list pricing where the product is a priced model, and the material differences between them. PAID: 0.01 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/compare/

read-only

Argument	Type	Description
products*	array

Input schema (JSON)

{
  "type": "object",
  "required": [
    "products"
  ],
  "properties": {
    "products": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 8,
      "minItems": 2
    }
  },
  "additionalProperties": false
}

harpd_optimize

Given a task and the model currently running it, returns cheaper candidate models that still clear the task quality floor, with per-call and projected monthly savings, the performance trade-off, a confidence value and the evidence behind every number. PAID: 0.01 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/developers/agents/

read-only

Argument	Type	Description
task*	string
max_cost	number
constraints	object
current_model*	string
monthly_calls	integer

Input schema (JSON)

{
  "type": "object",
  "required": [
    "task",
    "current_model"
  ],
  "properties": {
    "task": {
      "type": "string",
      "maxLength": 2000,
      "minLength": 3
    },
    "max_cost": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "constraints": {
      "type": "object",
      "properties": {
        "min_tier": {
          "enum": [
            "mini",
            "fast",
            "open",
            "reasoning",
            "flagship"
          ],
          "type": "string"
        },
        "providers": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "min_context_window": {
          "type": "integer",
          "minimum": 1000
        }
      },
      "additionalProperties": false
    },
    "current_model": {
      "type": "string"
    },
    "monthly_calls": {
      "type": "integer",
      "maximum": 100000000,
      "minimum": 1
    }
  },
  "additionalProperties": false
}

harpd_research

A structured research answer over the Harpd catalog: matching products, category distribution, price bands, evidence per claim and the sources behind them. PAID: 0.05 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/research/

read-only

Argument	Type	Description
limit	integer
query*	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 15,
      "maximum": 50,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 500,
      "minLength": 3
    }
  },
  "additionalProperties": false
}

search_products

Free keyword search over the published Harpd AI product catalog, with category filters and stable machine-readable results. FREE: no payment, no API key, no account required. Canonical: https://harpd.com/products/

read-only

Argument	Type	Description
q*	string
limit	integer
category	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "maxLength": 200,
      "minLength": 2
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1
    },
    "category": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

verify_agent_payment

A deliberately trivial paid product that exists so an agent can prove its whole x402 payment path — 402 challenge, signing, settlement, receipt — before it spends anything on data. Costs $0.01 and returns the request it received plus the settlement receipt. PAID: 0.01 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/developers/agents/

read-only

Argument	Type	Description
echo	string	Any string; returned unchanged so the caller can correlate the round trip.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "echo": {
      "type": "string",
      "maxLength": 200,
      "description": "Any string; returned unchanged so the caller can correlate the round trip."
    }
  },
  "additionalProperties": false
}