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fastmon Docs
Synthetic

Get Stored Lighthouse Summary

Read-only: the stored AI summary for a run (latest unless analysis_uuid), or 404 if none has been generated yet. NEVER generates — no LLM call, no rate-limit cost — so the UI can decide between a "View" and a "Generate" affordance without triggering (and paying for) generation. Use POST to actually generate.

Run resolution is the same domain-guarded, cached path the other Lighthouse routes use (so a foreign analysis_uuid can't be read); only the LLM work is skipped.

Authorization

bearerAuth
AuthorizationBearer <token>

API token generated from the fastmon dashboard (Account → API Token). Send as Authorization: Bearer fm_... or paste the full token (including the fm_ prefix) into the Authorize dialog.

In: header

Path Parameters

page_id*Page Id
Formatuuid
site_id*Site Id
Formatuuid

Query Parameters

device?Device
Match^(desktop|mobile)$
Default"desktop"
language?Language
Match^(en|de)$
Default"en"
analysis_uuid?|

Target a specific run; default latest

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

GET
/v1/sites/{site_id}/synthetic/pages/{page_id}/lighthouse/summary
curl -X GET "https://example.com/v1/sites/497f6eca-6276-4993-bfeb-53cbbbba6f08/synthetic/pages/497f6eca-6276-4993-bfeb-53cbbbba6f08/lighthouse/summary"
{  "page_id": "ef107761-0142-48fe-9dcd-5140d1ae58db",  "analysis_uuid": "string",  "device": "string",  "language": "string",  "summary": "string",  "cached": true}
{  "error": {    "code": "string",    "message": "string",    "request_id": "string",    "doc_url": "string",    "details": {}  }}
{  "error": {    "code": "string",    "message": "string",    "request_id": "string",    "doc_url": "string",    "details": {}  }}
{  "error": {    "code": "string",    "message": "string",    "request_id": "string",    "doc_url": "string",    "details": {}  }}
{  "detail": [    {      "loc": [        "string"      ],      "msg": "string",      "type": "string",      "input": null,      "ctx": {}    }  ]}
{  "error": {    "code": "string",    "message": "string",    "request_id": "string",    "doc_url": "string",    "details": {}  }}