What tools does the bowmark MCP server provide?

bowmark exposes 4 tools: get_library, register, report, run. This list was returned by the running server when we connected to it.

Does bowmark require an API key?

No. bowmark answered a tools/list request without credentials.

How do I install bowmark?

Run: claude mcp add --transport http bowmark https://api.bowmark.ai/mcp/registry. One-click install links for Cursor and VS Code are also available on the server's page.

Connection check verified live · 20h ago

bowmark

Do things on live websites: prices, availability, quotes, bookings, anything behind a form or login.

Web search & scraping Databases & SQL Code & repositories

Install

Remote (HTTP)

claude mcp add --transport http bowmark https://api.bowmark.ai/mcp/registry

Tools 4

GitHub stars —

Installs / wk —

Licence —

Transport streamable-http, stdio

Last checked 20h ago

Tools & capabilities

4 tools

Read from the running server on 20h ago.

get_library read-only query

**Use this whenever a task touches a live website.** It answers, definitively and cheaply, whether Bowmark can already DO the thing: look up current prices, check real availability… **Use this whenever a task touches a live website.** It answers, definitively and cheaply, whether Bowmark can already DO the thing: look up current prices, check real availability or stock, search a site, get a quote or a fare, drive a configurator, start a booking, or pull anything that only exists behind a form, a filter, or a login. **Checking is cheap, so check.** One read-only call, no site is touched, and an unrecognized query returns a one-line index instead of an error, so the check never dead-ends and never costs you an attempt. If nothing fits, you have lost one cheap call and can use your normal approach. What comes back is the callable **function library** you write against: the runtime globals (`log`) PLUS, for each capability your query named, its namespace, TypeScript types, functions, and worked examples. Everything listed is real and callable. The language rules and how to run a script are on the `run` tool description. Pass `query` — what you want to DO (`"flights"`, `"price a GPU"`) or, if you have one in mind, the COMPANY or site (`"Kayak"`, `"newegg.com"`). A phrase in the user's own words is fine; it is matched against the whole library. **You get what you asked about and nothing else.** If nothing matches — or you send no query — you get instead a one-line index: pick whichever entry fits and CALL AGAIN with its name to get the types and examples you need to write a script. **Every response is bounded, and it says so when it is a slice.** A broad query can match more than one response carries; when that happens the answer opens with a partial-answer line naming what it left out. **Read it before concluding anything** — absence from a sliced list means nothing, and the fix is one narrower query (a single task, or a single company by name), which always returns that entry in full. Only an answer that does NOT say it is a slice supports the conclusion that a task is uncovered. **Two tiers come back.** CAPABILITIES (`bowmark.flights.search(...)`) are the default and usually what you want: one call fans out across several sites, dedupes, ranks, and routes around a site that's failing. PROVIDERS (`bowmark.providers.kayak.search(...)`) are the individual sites, callable directly — they appear only when your query NAMED a company, or when the capability has just one provider behind it. A direct provider call gets that site's own raw shape and no failover, so prefer the capability unless you specifically want that site. Loop: call `get_library` → write a JS script against the `bowmark` global → send it to `run`.

register agentemailnewsletterpromotions

**Creates a free Bowmark account and returns an API key.** Call it when a `run` is refused for hitting the anonymous limit, when you expect to make more than a handful of calls, or… **Creates a free Bowmark account and returns an API key.** Call it when a `run` is refused for hitting the anonymous limit, when you expect to make more than a handful of calls, or any time the user says they want an account. **Every argument is optional. `register({})` is a complete, valid call** and returns a working key. Do NOT stop to ask the user for anything before calling this — there is nothing required to ask for. WHAT IT BUYS: anonymous callers share one small daily allowance per IP address with everything else behind it. A registered account gets its own monthly allowance, an order of magnitude larger. The response says both numbers. Where the connection allows it the new allowance applies IMMEDIATELY, with no configuration change — `activeNow: true` in the response means your very next `run` is already on it. `email` is OPTIONAL and no key depends on it — it is not a credential, and nothing you do with the API authenticates with it. **But passing one CREATES A BOWMARK SIGN-IN for that address**, so the person can sign in at bowmark.ai with an emailed code and manage the account without keeping any link. Pass it only if the user actually gave you one. **Never invent one and never pass a placeholder** — that creates a sign-in for somebody else's mailbox. **IF YOU PASS AN `email`, TELL YOUR USER THIS:** that address is subscribed to occasional Bowmark product and changelog email by default. Pass `newsletter: false` to decline, and say so plainly rather than deciding for them — every message carries a one-click unsubscribe either way. With no `email` there is nothing to subscribe and nothing to mention. `promotions` is a SEPARATE consent and is OFF unless you set it. **Only set it if the user has actually said yes to promotional email.** Do not infer consent from enthusiasm, and do not set it to be helpful. AFTER IT RETURNS: show the user `apiKey`. It is returned exactly once and cannot be recovered — tell them to save it and to add it to their Bowmark MCP config as `Authorization: Bearer <key>` so it works from every future session. Do not put the key in a file, a commit, or anywhere it outlives the conversation. **HOW THEY REACH THE ACCOUNT AS A PERSON.** If `signInUrl` came back, that is the way in: they sign in there with the email you passed, Bowmark sends a code, and they land in this account. Nothing to save. `claimUrl` is then only a backup for a wrong address. If `signInUrl` is null, `claimUrl` is the ONLY door — show it, and say `claimExpiresAt` is the date it stops working, because after that they can use the key but never manage or revoke the account. Re-registering is not how you get a second key: an address that already has an account is refused, and there is a per-network cap. If you already hold a key, present it instead.

report runIdreport*

Record what was missing, wrong, or incomplete so Bowmark can build it. Pass the `runId` returned by `run` when this report is about a run; omit it when `get_library` did not cover…

run can modify data script*

**Executes the task on the real websites** (the search, the price check, the availability lookup, the configurator, the booking flow) and returns what came back. Runs a script you… **Executes the task on the real websites** (the search, the price check, the availability lookup, the configurator, the booking flow) and returns what came back. Runs a script you authored against the `get_library` vocabulary, on the live sites, and returns `{ ok, result, logs, error, ms }`. Call `get_library` FIRST — it gives the exact function names, argument shapes, and return types; this description is the LANGUAGE + how-to (get_library is just the vocabulary). THE LANGUAGE — plain async JavaScript: • `bowmark` is a ready global (no import). Call capabilities off it — `await bowmark.<capability>.<method>(...)` — always `await`, they're async. • Individual sites are callable too, at `await bowmark.providers.<provider>.<fn>(...)`. Use one when you specifically want THAT site; otherwise prefer the capability, which fans out across sites and routes around failures. • Real control flow: `await`, `if`, loops, array methods (`map`/`filter`/`sort`/`slice`), and `Promise.all` for fan-out. • `return` a value to get it back (JSON-serialized). `log(...)` for progress lines. • Standard JavaScript built-ins are there (`JSON`, `Math`, `Date`, `RegExp`, `Intl`, `Promise`), plus `URL` and `URLSearchParams` — use them to resolve a relative link against the page it came from and to build query strings. Nothing else from the Web platform exists: no `fetch`, `setTimeout`, `TextEncoder` or `crypto`. • `bowmark` is the ONLY I/O — no `fetch`, `process`, filesystem, or `import`/`require`. Write a plain async body, not a wrapping function. • Keep scripts small and deterministic — no infinite loops. Runs in a hard sandbox with CPU + memory + wall-clock limits. **Your own tool-call budget is tighter than you'd guess, and it decides how many calls fit in one script.** Most MCP clients time a single tool call out at around 55 seconds, and ONE ordinary capability call already spends 30-55 seconds of that fanning out to live sites — see COMPOSITION below before calling a second capability in the same script. SENDING IT: pass the script text as `run({ script })` — `script` is the only argument (there is no `site` argument; the library exposes every capability under `bowmark`). `result` is whatever you returned; `logs` are your `log()` lines in order; on a throw/timeout `ok:false` and `error` is set. CHECK `status` BEFORE `ok`. It is `ok` | `error` | `partial` | `needs_user`. • `partial` means the script RAN and `result` is real and usable, but some of what it called never answered — so the result is narrower than what you asked for. `ok` is still `true`; this is not a failure. `incomplete.summary` says what happened in one sentence, `incomplete.failures` names each call that threw and what the site said, and `incomplete.degraded` names each call that answered while reporting its OWN results thin. You MUST say so when you present the result: name what was missed, and do not describe it as complete, exhaustive, or 'all' of anything. A `partial` you report as whole is a wrong answer, not a slightly smaller right one. • Before you conclude a `partial` is final, check `incomplete.failures[].fixable`. `fixable: true` means YOUR ARGUMENT was rejected, not the site — the error text names what that function actually takes, so re-read it in `get_library`, fix the argument and run again; that recovers the whole answer. For any other failure re-running usually returns the same thing. • `needs_user` means a site needs the USER signed in — it is NOT a failure and NOT something you can fix by editing the script. `needs` lists the sites; `meta.handoff.url` is a single-use link that expires (`meta.handoff.expiresAt`). Give the user that URL, say which sites it covers, and WAIT. When they tell you they're done, send the SAME script again unchanged. Do NOT retry before then — it will stop at the same place and cost another run. Do NOT try to log in yourself, ask them for a password, or work around it with a different site. • Logged-in runs need a Bowmark API key on the connection; if you get `needs_user` saying so, tell the user to add one rather than retrying. `trace` is the execution trace — every capability you called and the providers it fanned out to under the hood: `[{ kind:'capability', capability:'flights', method:'search', ms }, { kind:'provider', capability:'flights', provider:'google_flights', fn:'search', results, status, ms }, …]`. The script never visits websites — it calls capabilities that route to providers, and the trace is the receipt. COMPOSITION MEANS PARALLEL, NOT SEQUENTIAL. Default to ONE capability call per script — most already spend 30-55 seconds of your own ~55-second tool-call budget on their own, so a second call made AFTER the first routinely never returns before your client gives up, and the script errors with nothing to show for either call. If you genuinely need several, run them TOGETHER inside `Promise.all` — in parallel they cost about what one call costs, not the sum of them — and never call them one after another. To sweep a date range, call the search per date inside `Promise.all` and sort/filter the merged array (each flight result carries its `date`, so you can tell the runs apart). See the `get_library` examples for the exact shape. If even one call will not fit your budget, narrow the query (fewer dates, a single site instead of a fan-out) or split the work across separate turns — do not compose more into one script to make it fit. SOME capabilities return their rows alongside a `warnings` array — `{ flights, warnings }`, `{ hotels, warnings }`, `{ cars, warnings }`. Others return a bare array. The signature in `get_library` tells you which; go by it rather than assuming. Where there IS a `warnings` array it names any site dropped from the fan-out, and the rows themselves look identical with or without it. Read it, and pass on anything it says rather than quoting a 'cheapest' that only ranks the sites that happened to answer. Dropping `warnings` from what you return does not hide it — the run comes back `status: 'partial'` regardless, because the runtime counts what your script CALLED, not what it chose to report.