MCP Server

Harpd Agent Data

            com.harpd/agent-data
        

AI & Agents Data & Analytics Search & Research Public & reachable MCP 2026-07-28

What this MCP does

Searches and analyzes AI product and LLM rankings, pricing, historical performance, comparisons, research, and model cost optimization.

get_historical_data

Harpd historical rank intelligence

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/

Read only Idempotent

Input schema

{'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}

Output schema

{'type': 'object', 'required': ['data', 'meta']}

get_rank

Harpd AI product rankings

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 Idempotent

Input schema

{'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}

Output schema

{'type': 'object', 'required': ['data', 'meta'], 'properties': {'data': {'type': 'object'}, 'meta': {'type': 'object'}}}

harpd_compare

Harpd AI product comparison

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 Idempotent

Input schema

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

Output schema

{'type': 'object', 'required': ['data', 'meta']}

harpd_optimize

Harpd AI model cost optimization

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 Idempotent

Input schema

{'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}

Output schema

{'type': 'object', 'required': ['data', 'meta']}

harpd_research

Harpd AI product 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 Idempotent

Input schema

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

Output schema

{'type': 'object', 'required': ['data', 'meta']}

search_products

Harpd AI product search

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 Idempotent

Input schema

{'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}

Output schema

{'type': 'object', 'required': ['data', 'meta'], 'properties': {'data': {'type': 'object', 'required': ['query', 'count', 'results'], 'properties': {'count': {'type': 'integer'}, 'query': {'type': 'string'}, 'results': {'type': 'array'}}}, 'meta': {'type': 'object'}}}

verify_agent_payment

Harpd testnet payment smoke test

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 Idempotent

Input schema

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

Output schema

{'type': 'object', 'required': ['data', 'meta']}

Removed

                            research_products
                        

Sept. 23, 2026, 2:41 a.m.

Removed

                            optimize_model
                        

Sept. 23, 2026, 2:41 a.m.

Removed

                            compare_products
                        

Sept. 23, 2026, 2:41 a.m.

Added

                            harpd_research
                        

Sept. 23, 2026, 2:41 a.m.

Added

                            harpd_optimize
                        

Sept. 23, 2026, 2:41 a.m.

Added

                            harpd_compare
                        

Sept. 23, 2026, 2:41 a.m.

Added

                            verify_agent_payment
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            search_products
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            research_products
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            optimize_model
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            get_rank
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            get_historical_data
                        

Sept. 19, 2026, 2:40 a.m.

Added

                            compare_products
                        

Sept. 19, 2026, 2:40 a.m.

Server details

Version

1.0.1

Transport

Streamable HTTP

Tools

Latency

1249 ms

Last scan

Oct. 1, 2026, 2:43 a.m.

First seen

Sept. 19, 2026, 2:11 a.m.

Endpoint

https://api.harpd.com/mcp

Recent scans

Success

Oct. 1, 2026, 2:43 a.m.

Success

Sept. 29, 2026, 2:50 a.m.

Success

Sept. 27, 2026, 2:42 a.m.

Success

Sept. 25, 2026, 2:49 a.m.

Success

Sept. 23, 2026, 2:41 a.m.

Success

Sept. 21, 2026, 2:49 a.m.

Success

Sept. 19, 2026, 2:40 a.m.

Harpd Agent Data

What this MCP does

Tools

Recent tool changes

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