Search and filter one "on the Cheap" site's articles — free and cheap things to do in that city, plus deals, festivals, kids activities and local guides. Pass the site key for the city (see otc_list_sites); the national hub is valid here and carries country-wide deals. Filter by full-text query, category or location id (see otc_list_categories / otc_list_locations), and publication date range. Category and location ids are per-site — resolve them against the SAME site you are searching. Retired deals live in an "expired" category and are excluded by default; set include_expired to search them too. Returns slim summaries by default — use otc_get_post for an article's full text. Read-only.

Fetch one "on the Cheap" article in full by numeric id, slug, or full URL. Pass the site key for the city the article belongs to — an id or slug from one site will not resolve on another, and a full URL must match the site you name. Returns the article text as readable plain text by default; set format to "html" for the original markup. Read-only.

List everything happening in an "on the Cheap" city on a given date, from that site’s events calendar — each with its time, price (most are free) and venue. Pass the site key for the city (see otc_list_sites) and an ISO date (YYYY-MM-DD); the date defaults to today in that city. Set free_only to keep just the no-cost listings. The national hub has no local calendar and is not a valid site here. Use otc_get_post on a listing's url for the full write-up. Read-only.

Day-by-day overview of a whole month from an "on the Cheap" city’s events calendar: for each day, the true number of listings and a short preview of them. Pass the site key for the city (see otc_list_sites). The calendar shows at most four listings per day, so events is a preview while total is the real count — call otc_list_events for a specific date to get that day's complete schedule. The national hub has no local calendar and is not a valid site here. Use this to find the busiest days or scan a month at a glance. Read-only.

List one "on the Cheap" site's article categories with their ids and post counts (kids, music, food, festivals, art, museums, and so on). Pass the site key for the city (see otc_list_sites). Use an id to filter otc_search_posts by topic — ids are per-site, so use them only against the site they came from. Read-only.

List one "on the Cheap" site's location taxonomy with ids and post counts — the neighbourhoods and surrounding areas it covers. Pass the site key for the city (see otc_list_sites). Use an id to filter otc_search_posts geographically — ids are per-site, so use them only against the site they came from. Read-only.

List every city in the "on the Cheap" network with the site key used to select it. This server reads them all — every other tool takes a site argument, and there is no default, so start here when you do not already know which key covers the city the user means. Read-only.

Verify one "on the Cheap" site is reachable and its public API is responding. Pass the site key for the city (see otc_list_sites). The sites need no credentials, so this checks connectivity only. On failure error.kind names what broke: edge_blocked (a CDN/WAF refused the request before it reached the site), http, timeout or transport. Read-only.