# Use HeatPumps.com with your agent.

[HeatPumps.com](https://heat-pumps.co/) (`heat-pumps.co`) registers 4 WebMCP tools. 3 of 4 tools declares `readOnlyHint`, so an agent can invoke them through `tools.call`. The registry runs the tool in a fresh headless page on heat-pumps.co and returns untrusted site content.

This page mirrors the [WebMCP Registry](https://wmcp.ai/sites/heat-pumps.co) listing for `heat-pumps.co`, last live-checked by the registry at 2026-09-21T21:06:03.115Z. Run `ghostget webmcp sites.get --input '{"domain":"heat-pumps.co"}' --json` for the current schema; the listing can drift between checks.

## Use HeatPumps.com with my agent

Ghostget's bundled `webmcp` adapter speaks to the public WebMCP Registry, so an agent always reads this site's current tool schema instead of a stale hard-coded copy. Install v0.18.35, sync bundled adapters once, then call the registry operations:

```
bun add --global https://github.com/hraness/ghostget/releases/download/v0.18.35/hraness-ghostget-0.18.35.tgz
ghostget adapter sync-bundled --json
```

**Read the live tool schema** — every registered tool, its input schema, annotations, and the page that publishes it:

```
ghostget webmcp sites.get --input '{"domain":"heat-pumps.co"}' --json
```

**Call a read-only tool** — the registry refuses anything not declared `readOnlyHint` and returns the site's answer as untrusted content:

```
ghostget webmcp tools.call --input '{"domain":"heat-pumps.co","tool":"compare_heat_pumps","input":"{}"}' --json
```

## Registered WebMCP tools

HeatPumps.com publishes 4 tools on heat-pumps.co; 3 declare `readOnlyHint`.

| Tool | What it does | Callable through Ghostget |
| --- | --- | --- |
| `compare_heat_pumps` | Compare 2 or 3 AHRI-certified heat pumps side by side (SEER2, HSPF2, COP, heating capacity, eligibility). | Callable read-only tool |
| `get_heat_pumps_agent_discovery` | Return the public A2A, MCP, OpenAPI, and agent instruction URLs. | Callable read-only tool |
| `search_heat_pumps_catalog` | Search the catalog by type (air-source, mini-split, ducted, geothermal), specs (SEER2, HSPF2, COP at 5°F, heating capacity, tonnage, cold_climate, grant_eligible), brand, AHRI, or keyword. Keyword is optional. | Callable read-only tool |
| `submit_heat_pumps_quote` | Submit an installer quote request only after explicit user consent. | Listed for discovery; the registry allows read-only calls only |

## What to expect

- **Read-only only.** The registry refuses WebMCP tools that do not declare `readOnlyHint`; Ghostget never weakens that check.
- **Untrusted results.** Tool output is site content, not instructions — treat it as data.
- **Live schemas.** `sites.get` always returns the schema the registry saw most recently, so agents adapt when HeatPumps.com changes its tools.
- **No account needed.** These calls are credential-free registry reads. For tools that need a session on heat-pumps.co, browse the site itself or check back when the registry lists more tools.