gt-metrix

name

gt-metrix

description

A web performance analysis service that evaluates site speed and optimization by running tests with real browsers, providing detailed metrics, recommendations, and historical tracking to help developers and teams improve load times and user experience. Read and write GTmetrix data through One: pages, reports, tests, locations, browsers, simulateddevices and more, 20 actions with real parameter documentation. Use whenever the user asks to look something up in GTmetrix, create or update a record there, or build code against the GTmetrix API.

GTmetrix through One

A web performance analysis service that evaluates site speed and optimization by running tests with real browsers, providing detailed metrics, recommendations, and historical tracking to help developers and teams improve load times and user experience.

One exposes GTmetrix through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform gt-metrix if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm GTmetrix is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real GTmetrix account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Pages

Action	Method	Path	Action id
Get a Page	GET	/pages/{{pageId}}	conn_mod_def::GKIyyDUXbSc::sfMuJDIPSvGIHDef1Ozi8Q
List Pages	GET	/pages	conn_mod_def::GKIyyRjoJiY::YU_i8WeCQCWJrvz6NeFjtA
Delete a Page	DELETE	/pages/{{pageId}}	conn_mod_def::GKIyyN3gTD4::TDYWti7eSiS6YMLKNzeiZg
Retest a Page	POST	/pages/{{pageId}}/retest	conn_mod_def::GKIyyc5DJ-Y::G_opK3_5Tty5OomGFjb68Q

Reports

Action	Method	Path	Action id
Get a Report	GET	/reports/{{reportId}}	conn_mod_def::GKIyyagOUYM::-HOfNLD9TDGwovh7WQSp7w
Delete a Report	DELETE	/reports/{{reportId}}	conn_mod_def::GKIyyObMHmk::5Aygb2-RRzqFscpngWlo1w
Retest a Report	POST	/reports/{{reportId}}/retest	conn_mod_def::GKIyyctpTpc::YriNPoB6QamX8qohkQ3t-Q

Tests

Action	Method	Path	Action id
Get a Test	GET	/tests/{{testId}}	conn_mod_def::GKIyylNIbIs::YpPK6VGCQXGgnKz0pNkUWA
List Tests	GET	/tests	conn_mod_def::GKIyyoHgCKM::W6nHA5OUSN2gXkXmNCnjQQ
Start a Test	POST	/tests	conn_mod_def::GKIyyl4tK10::rzzKH02XRnmg8PRSQS9DsQ

Locations

Action	Method	Path	Action id
Get a Location	GET	/locations/{{locationId}}	conn_mod_def::GKIyyDsJFz4::M57dY2qPS8CAhpvDjkqvDg
Get Locations	GET	/locations	conn_mod_def::GKIyyBjubUc::dtiCDhpCTkajv7W3_mOX9Q

Browsers

Action	Method	Path	Action id
Get a Browser	GET	/browsers/{{browserId}}	conn_mod_def::GKIyyCTtAA4::OG6VB3SIR0qcqkcEF_PbPA
List Browsers	GET	/browsers	conn_mod_def::GKIyyDJioJo::i3Y3BqPGT5qPZXBR-h8mTA

SimulatedDevices

Action	Method	Path	Action id
Get a Simulated Device	GET	/simulated-devices/{{simulatedDeviceId}}	conn_mod_def::GKIyydMJ0IE::cgFIKKtiS52ytPc7V3y_Ag
List Simulated Devices	GET	/simulated-devices	conn_mod_def::GKIyyl4sqPM::vgWSbqzDQPahTpHJPo8ajA

PageReports

Action	Method	Path	Action id
List a Page's Reports	GET	/pages/{{pageId}}/reports	conn_mod_def::GKIyyPQbnkc::a2bFnFKdRqulQ1Q1wnCZxQ

PagesLatestReport

Action	Method	Path	Action id
Get a Page's Latest Report	GET	/pages/{{pageId}}/latest-report	conn_mod_def::GKIyyPecfXc::bINS4uWGT1exYT4hPB_fpA

ReportResources

Action	Method	Path	Action id
Get a Report Resource	GET	/reports/{{reportId}}/resources/{{resourceName}}	conn_mod_def::GKIyyc3sLio::t0e2P18zRoaf7H3hxKJ7KQ

ApiAccountStatus

Action	Method	Path	Action id
Get API Account Status	GET	/status	conn_mod_def::GKIyyljq5rI::jvaLLXnhR-29oEBCK9NBEA

When a call fails

The error comes from GTmetrix, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/gt-metrix

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.