Firecrawl for Convex

Scrape, map, and search the web from Convex functions, and run durable crawls
whose progress and pages live in your Convex database — so your UI subscribes to
a crawl instead of polling for it.
const firecrawl = new FirecrawlClient(components.firecrawl);
const page = await firecrawl.scrape(ctx, "https://firecrawl.dev", {
formats: ["markdown"],
});
const { crawlId } = await firecrawl.startCrawl(ctx, {
url: "https://docs.firecrawl.dev",
options: { limit: 50 },
onComplete: internal.myModule.indexCrawledPages,
});
What you get
scrape | One URL → markdown, HTML, screenshot, summary, structured JSON |
map | Every URL on a site, fast |
search | Web search, optionally scraping each result |
startCrawl | A whole site, tracked in your database: reactive status, pages as they arrive, a completion callback |
Crawls are the reason this is a component rather than a few fetch calls. A
crawl of a large site takes minutes and outlives any single action, so the
component owns a crawls row and a pages table, advances them from Firecrawl
webhooks (with a poll watchdog behind them), and exposes plain Convex queries.
Your client gets live progress through the normal subscription mechanism.
Install
npm install @firecrawl/firecrawl-convex
Add the component to your app, wiring the API key through typed component env:
import { defineApp } from "convex/server";
import { v } from "convex/values";
import firecrawl from "@firecrawl/firecrawl-convex/convex.config";
const app = defineApp({
env: {
FIRECRAWL_API_KEY: v.string(),
FIRECRAWL_WEBHOOK_SECRET: v.optional(v.string()),
},
});
app.use(firecrawl, {
httpPrefix: "/firecrawl/",
env: {
FIRECRAWL_API_KEY: app.env.FIRECRAWL_API_KEY,
FIRECRAWL_WEBHOOK_SECRET: app.env.FIRECRAWL_WEBHOOK_SECRET,
},
});
export default app;
Then set the key on your deployment:
npx convex env set FIRECRAWL_API_KEY fc-your-key
npx convex env set FIRECRAWL_WEBHOOK_SECRET whsec-your-secret
npx convex dev
Get a key at firecrawl.dev.
Scrape, map, search
Call the component from your own actions. Keeping a wrapper in your app is where
authentication, authorization, and rate limiting belong — components can't see
ctx.auth. The example app shows the full pattern:
a requireUser gate on every paid endpoint, and an app-owned crawl → user table
checked before any crawl can be read, cancelled, or deleted.
import { v } from "convex/values";
import { FirecrawlClient } from "@firecrawl/firecrawl-convex";
import { action } from "./_generated/server";
import { components } from "./_generated/api";
const firecrawl = new FirecrawlClient(components.firecrawl);
export const scrapePage = action({
args: { url: v.string() },
handler: async (ctx, args) => {
await requireUser(ctx);
return await firecrawl.scrape(ctx, args.url, {
formats: ["markdown", { type: "json", prompt: "Extract the pricing table" }],
onlyMainContent: true,
maxAge: 3_600_000,
});
},
});
export const siteUrls = action({
args: { url: v.string() },
handler: (ctx, args) => firecrawl.map(ctx, args.url, { limit: 500 }),
});
export const searchWeb = action({
args: { query: v.string() },
handler: (ctx, args) =>
firecrawl.search(ctx, args.query, {
limit: 5,
scrapeOptions: { formats: ["markdown"] },
}),
});
Option names match the Firecrawl v2 API
and are passed through untouched, so the Firecrawl docs are the reference for
what they do. The typed surface covers the common options; a few enterprise and
niche ones (profile, threatProtection, auditMetadata, search enterprise)
are deliberately left out of the types. Those, and anything Firecrawl ships
before this package catches up, go through extra:
await firecrawl.scrape(ctx, url, { extra: { threatProtection: { mode: "off" } } });
scrape, map, and search return the API response as-is (validated as
v.any() at the component boundary) rather than a re-modelled shape, so a new
response field is available the day Firecrawl ships it. The FirecrawlClient
methods give you TypeScript types over those responses.
Durable crawls
export const crawlDocs = action({
args: { url: v.string() },
handler: async (ctx, args) => {
const userId = await requireUser(ctx);
return await firecrawl.startCrawl(ctx, {
url: args.url,
options: {
limit: 100,
includePaths: ["^/docs/.*"],
scrapeOptions: { formats: ["markdown"], onlyMainContent: true },
},
onComplete: internal.web.onCrawlComplete,
context: { userId },
});
},
});
startCrawl returns { crawlId, jobId } right away. From there:
export const crawlProgress = query({
args: { crawlId: v.string() },
handler: (ctx, args) => firecrawl.getCrawl(ctx, args.crawlId),
});
export const crawlPages = query({
args: { crawlId: v.string(), paginationOpts: paginationOptsValidator },
handler: (ctx, args) => firecrawl.listPages(ctx, args),
});
function CrawlView({ crawlId }: { crawlId: string }) {
const crawl = useQuery(api.web.crawlProgress, { crawlId });
const { results } = usePaginatedQuery(
api.web.crawlPages,
{ crawlId },
{ initialNumItems: 25 },
);
return (
<>
<progress value={crawl?.pageCount ?? 0} max={crawl?.total ?? 1} />
<ul>{results.map((p) => <li key={p._id}>{p.url}</li>)}</ul>
</>
);
}
The completion callback
onComplete takes an internal mutation of your app, run exactly once when
the crawl reaches a terminal state. context comes back untouched, so you can
carry a user id, a document id, whatever.
export const onCrawlComplete = internalMutation({
args: {
crawlId: v.string(),
jobId: v.optional(v.string()),
status: v.union(v.literal("completed"), v.literal("failed"), v.literal("cancelled")),
pageCount: v.number(),
unstored: v.optional(v.number()),
error: v.optional(v.string()),
context: v.optional(v.any()),
},
handler: async (ctx, args) => {
if (args.status !== "completed") return;
if (args.unstored) console.warn(`${args.unstored} pages were too large to store`);
await ctx.scheduler.runAfter(0, internal.rag.indexCrawl, {
crawlId: args.crawlId,
userId: args.context?.userId,
});
},
});
Webhook mode vs poll mode
| How pages arrive | Firecrawl pushes crawl.page events; a slow watchdog poll catches anything dropped | the component polls the status endpoint, backing off to 30s |
| Requires | httpPrefix mounted, and a deployment Firecrawl can reach over the internet | nothing |
| Use it when | normal cloud deployments | local dev, self-hosted behind a firewall |
await firecrawl.startCrawl(ctx, { url, mode: "poll" });
A local Convex deployment isn't reachable from Firecrawl's servers, so use
mode: "poll" there — or the mock server described below, which delivers
webhooks to your local deployment for you.
Deliveries are checked twice: the X-Firecrawl-Signature HMAC (whenever
FIRECRAWL_WEBHOOK_SECRET is set) and a per-crawl token the component hands
Firecrawl when it registers the webhook. A delivery failing either check is
rejected with 401, and nothing is written.
Other crawl operations
await firecrawl.getCrawlByJobId(ctx, jobId);
await firecrawl.listCrawls(ctx, { status: "scraping", limit: 20 });
await firecrawl.getPage(ctx, { crawlId, url });
await firecrawl.cancelCrawl(ctx, crawlId);
await firecrawl.deleteCrawl(ctx, crawlId);
await firecrawl.resumeCrawl(ctx, crawlId);
The component stops checking on a crawl after ~250 status checks (roughly two
hours of polling, or a day of webhook watchdog) and finalizes it as failed
with an explanatory error, so subscribers and onComplete are never left
waiting on a job that will never report. If the job really is still running on
Firecrawl, resumeCrawl picks tracking back up where it left off.
Pass storeContent: false to startCrawl to record only URLs and metadata —
useful when you just want the callback, or when you re-fetch content elsewhere.
Good to know
- Errors are
ConvexErrors carrying { code, status, path, message }, so
you can branch on error.data.status === 402 (out of credits) or
429 (rate limited). Transient failures (408, 425, 429, 5xx) are retried
three times with backoff, honoring Retry-After.
- Document limits. Convex documents cap at 1MB, so every page is budgeted
in UTF-8 bytes across the whole document before it's written. Text and link
lists are truncated; a screenshot, extracted
json, or changeTracking blob
that doesn't fit is dropped whole; oversized metadata falls back to its
essential keys. Any of that sets truncated: true on the page. If Firecrawl
returns pages that still can't be stored, the count shows up as unstored on
the crawl and in the onComplete payload — never silently. For very large
corpora, consider storeContent: false plus your own storage.
- Credits show up as
creditsUsed on the crawl row and in each page's
metadata.
- Self-hosted Firecrawl: declare
FIRECRAWL_API_URL in the component env
and point it at your instance.
- Runtime: everything runs in the Convex runtime — no
"use node", no
bundled SDK. Requests go straight to the v2 REST API.
Testing
Register the component in your own tests:
import { convexTest } from "convex-test";
import firecrawl from "@firecrawl/firecrawl-convex/test";
import schema from "./schema";
const modules = import.meta.glob("./**/*.*s");
export function initConvexTest() {
process.env.FIRECRAWL_API_KEY = "fc-test-key";
const t = convexTest(schema, modules);
firecrawl.register(t);
return t;
}
Then stub fetch to return canned Firecrawl responses — see
example/convex/example.test.ts.
Try it locally
The example/ app exercises every entry point, and
example/mock-firecrawl.mjs stands in for the
Firecrawl API — including signed webhook deliveries — so you can watch a crawl
progress without spending credits:
npm install
FIRECRAWL_WEBHOOK_SECRET=whsec-mock npm run dev:mock
npx convex env set FIRECRAWL_API_KEY fc-mock-key
npx convex env set FIRECRAWL_API_URL http://127.0.0.1:4242
npx convex env set FIRECRAWL_WEBHOOK_SECRET whsec-mock
npm run dev
npx convex env set DEMO_ALLOW_ANONYMOUS true
npx convex run example:startCrawl '{"url":"https://mock.test","limit":3}'
npx convex run example:myCrawls '{}'
npx convex run example:reports '{}'
Swap in a real key (and drop FIRECRAWL_API_URL) to hit the live API. See
example/README.md for the full list of commands.
Development
npm run dev
npm test
npm run typecheck
npm run lint
npm run dev runs the three steps the
authoring docs describe, in
order: component codegen, package build, then convex dev for the example app.
License
MIT