Head to head · Scraping · October 2026 research run

Crawl4AI vs Outcrawl

Outcrawl scores 62.4 (B) on agent readiness against Crawl4AI's 43.9 (E), and leads in 4 of 7 scored categories. Crawl4AI leads on payments & pricing and transparency & trust. Both do scraping. Crawl4AI is cheaper for scraping, $0.50 against $4.90 per 1,000 pages.

Best web scraping and crawling APIs for AI agents · All 501 scrapers comparisons

Which one, for what

Crawl4AI E

Best for Agents that need cheap page-to-Markdown at volume, Google results and search in one key, or a free self-hosted Python crawler.

Ahead on

  • Payments & pricing, 45 against 40
  • Transparency & trust, 70 against 56

Also in its favour

  • Cheaper for scraping, $0.50 against $4.90 per 1,000 pages
  • Open source

Watch for

No status page, SLA or OpenAPI spec for the cloud API found

Outcrawl B

Best for Agents that want one key and one balance for reading pages, walking a site, searching with rendered results and handing a signed-in or multi-step task to a hosted browser agent with a hard budget, and teams on TypeScript that want a residential-exit browser over CDP with a replay of every session.

Ahead on

  • Reliability, 45 against 35
  • Schema & documentation, 71 against 55
  • Agent ergonomics, 83 against 67
  • Security & auth, 66 against 46

Also in its favour

  • No incidents deducted, where Crawl4AI loses 10 points for them

Watch for

No status page, incident history, SLA below Enterprise or security.txt; /status and status.outcrawl.ai do not answer

Why the edge

Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.

Security & auth Outcrawl +20

Crawl4AI 46

Bearer keys, shown once and regenerable, with 3 to 30 keys per plan. claude.ai and ChatGPT sign in through a flow that advertises one scope, mcp, and each app shows as a revocable key. No per-key scopes, and the docs don't offer the key in a URL (22 of 30). A key can call billing routes, and the MCP topup and recharge tools charge the saved card, though llms.txt tells agents to ask first and accounts can set a spend cap. No read-only key (6 of 20). Scraped pages are untrusted text and no prompt-injection guidance was found in llms.txt or the API docs (0). Per-call cost, balance and fetch path in response headers and fields, no access log documented (6 of 15). The security page (4 October 2026) gives a disclosure process with fix targets and says SOC 2 is in progress, and the library publishes GitHub advisories with reporter credits. security.txt redirects to a 404, and no bounty found (12 of 20). 22 + 6 + 0 + 6 + 12 = 46.

Outcrawl 66

OAuth 2.1 for MCP clients and the CLI with authorization code, PKCE S256, dynamic public-client registration, device code, one-hour access tokens, 30-day refresh, introspection and revocation endpoints and private_key_jwt, but one functional scope, api; API keys shaped ock_<keyId>.<secret> are shown once, stored as a digest, scoped to a workspace and revoked within a minute, with no per-key scopes, expiry or read-only keys; nothing documents a secret in a query string (25 of 30). No read-only key or scope. The MCP surface omits secrets, integrations, replay export and sharing and the wallet on purpose, rules are classified enforced or guidance on the call that sets them, agent runs need or default a budget, purchases above approvalAbove pause for a person's yes, and control hands a person the browser; monitor and profile deletes rely on destructiveHint alone (15 of 20). Every tool returns untrusted page content. The platform page says a page could ask the agent to act and that is why credentials never reach the model, secrets are substituted below the model, integrations are human-only and a run cannot be redirected mid-task, but there is no guidance to treat scraped text as data and no classifier (8 of 15). Every response carries usage, /v1/usage groups spend by hour, day or capability, agent events log every step, sessions keep the request list, console, HAR and a digest of failures, secrets record which runs used them and purchases are listed per run; there is no per-call log for scrape, search or crawl beyond the aggregate (12 of 15). No security.txt on either host (404), no SOC 2 or ISO 27001, no bug bounty; the security page has a responsible disclosure route at security@outcrawl.ai with a 90-day window and a no-legal-action statement (6 of 20). 25+15+8+12+6 = 66.

Schema & documentation Outcrawl +16

Crawl4AI 55

No OpenAPI or similar contract for the cloud API, and the MCP tool schemas are only in the live tools/list, which needs a key. /v1/prices is machine-readable but covers prices, not calls (0). llms.txt of 304 lines written for agents (10). Each endpoint says what it is for and when to choose another, such as trying without a proxy first, using browser only when auto misses content and /scrape/jobs for slow lists (16 of 20). Parameters are listed with types, defaults, allowed values (format both, md or html; proxy none, isp or residential) and limits, in prose (10 of 15). Curl examples per endpoint and documented error strings per status with whether each is charged (14 of 15). No changelog for the cloud API, only dated notes such as /serp 'added 8 Oct 2026'. The library has a dated CHANGELOG (5 of 15). 0 + 10 + 16 + 10 + 14 + 5 = 55.

Outcrawl 71

API reading, with the MCP server described. An OpenAPI 3.1 document at https://outcrawl.ai/docs/api-reference/openapi.json lists 62 operations over 51 paths with a summary each and the same 11 status codes, generated from the vendor's capability registry, but every request body is an untyped object marked additionalProperties: true with a pointer to the docs, every 200 response is an untyped object, and Error is the only schema; the typed shapes live in the SDK declarations and in the MCP server's zod schemas, which were read in the 0.4.3 npm package rather than from the hosted server (15 of 25). llms.txt and a 525 KB llms-full.txt on the docs, a Markdown twin of every page and an llms.txt on the site (10). The MCP descriptions each end with a Not for: clause naming the better tool and most with a Cost: clause, the OpenAPI summaries say when not to use a route, and the capability pages say which neighbour to use instead (18 of 20). Scrape formats are an enum of eight, event levels and record kinds are enums, caps.budget is required, and the SDK types bound every option, while the OpenAPI bodies carry none of it (10 of 15). curl, TypeScript and Python examples on every page, 20 worked programs, a 31-row error table with meanings and a retryable list, and MCP errors with a recovery string, though the closed union is sized 24, 31, 45 and 22 on different pages (13 of 15). /v1 in the path and 1.0.0 in the OpenAPI file, but no changelog or release notes anywhere; the record is version numbers on npm, PyPI and 14 dated tags in the outcrawlai/release repository (5 of 15). 15+10+18+10+13+5 = 71.

Agent ergonomics Outcrawl +16

Crawl4AI 67

16 MCP tools, six of them for billing and support (15 of 25). format md or html, parse opt-in blocks, batch limits and job results paged 500 at a time over HTTP and 50 over MCP (16 of 20). String error codes an agent can branch on (blocked, login-wall, no-answer, busy, no_credit, plan_cap, spend_cap), each with whether it is charged (18 of 20). Failed and cancelled calls aren't charged and jobs_submit takes an idempotency key, but no tool annotations are documented and two tools can charge the saved card (10 of 20). Only url or q is required. There is no official SDK for the cloud API; the docs give curl and standard-library Python and Node examples (8 of 15). 15 + 16 + 18 + 10 + 8 = 67.

Outcrawl 83

API reading. Scrape returns main content only by default with formats picking markdown, html, rawHtml, links, screenshots or schema JSON, search renders page bodies only on request, agent events take a level and an after cursor, the MCP server shows request bodies up to a character limit and says when it truncated, and the MCP surface is 29 tools with no toolsets (20 of 25). Cursor pagination on crawl results, agent results and downloads, limit, depth and path filters on crawl, status, outcome, task and age filters on sessions, and usage grouped by hour, day, month or capability (20). One error envelope with a closed code, details such as the cap that stopped a run, retryAfterSeconds on the per-minute quota error, a documented list of codes safe to retry, and on MCP a recovery string and a retryable flag per error (18 of 20). No idempotency key on any route, a repeated agent, crawl or monitor submit runs twice, and concurrency_limit carries no retry hint; cancel is idempotent, integration_changed (409) guards updates, and the npm MCP package sets readOnlyHint on GET tools, destructiveHint on DELETE tools and idempotentHint on either, which the hosted server was not read to confirm (10 of 20). Scrape needs a URL alone, agent runs need caps.budget on the API and SDKs with the MCP server defaulting it, and official SDKs exist in TypeScript and Python beside a CLI (15). 20+20+18+10+15 = 83.

Transparency & trust Crawl4AI +14

Crawl4AI 70

The library is Apache-2.0 and the cloud is closed under terms that name CONTEXT4AI PTE LTD (22 of 30). The privacy policy gives retention periods (account plus 90 days, usage records 13 months, logs 90 days), but none for crawled content, and llms.txt says repeated URLs are served from a shared archive while the security page says fetched pages are used only to answer the request (18 of 30). The legacy cloud API closed on 6 November 2026 with a migration guide but no dated notice found, and the terms promise notice of material changes only 'where reasonable' (8 of 20). Subprocessors named with their locations on the security page, with EU storage of account records (18 of 20). 22 + 18 + 8 + 18 = 66.

Outcrawl 56

Closed hosted service under terms last updated 1 November 2026 that name Aeonmind LLC, trading as Outcrawl, Delaware law and a liability cap; the SDKs and the MCP package are MIT and Scout, the agent behind the hosted agent, is Apache-2.0 in a read-only mirror of a private repository (20 of 30). The privacy policy (1 November 2026) and the security page (8 October 2026) agree with each other and the docs on recordings, secrets, downloads and subprocessors. Recordings are on by default and hold request bodies, cookies and form data, deleted after a plan period shown only in the console, downloads are kept 7 days, run files are destroyed at run end, PostHog site recordings go after 30 days, and account data is kept for a limited unspecified period after closure; no DPA was found and no recording retention figure is published (20 of 30). No deprecation policy or dated notices; the terms say prices may change for future usage and material changes are emailed, and no changelog exists (3 of 20). Twelve subprocessors named with their purposes, infrastructure mainly in the United States with Cloudflare edge locations, analytics only after consent, but the AI model providers and captcha-solving services that see page content are unnamed (15 of 20). 20+20+3+15 = 58.

Reliability Outcrawl +10

Crawl4AI 35

Graded on the hosted lines, for Crawl4AI Cloud, which the README and llms.txt now lead with and which an agent calls through its MCP server; the library would read on the local lines. No status page is linked, and status.crawl4ai.com fails TLS (0). No incident history readable (5). Per-plan limits are published with numbers in /v1/prices, from 10 requests a minute and 2 at a time on Free to 1,500 and 50 on Scale (15). 429 carries X-RateLimit headers and a message, 503 busy says to resend after a few seconds, and MCP job submissions take an idempotency key, but no Retry-After or backoff guidance (10 of 15). No SLA found in the terms or pricing (0). Prices and the free credit are a soft launch, /serp is beta and /answer experimental, while scrape, extract and search carry no beta label (5 of 10). 0 + 5 + 15 + 10 + 0 + 5 = 35.

Outcrawl 45

Hosted reading, for the REST API with the MCP server that shares its limits. No public status page was found. None is linked from the site or the docs, https://outcrawl.ai/status answers 404 and status.outcrawl.ai does not answer (0). No readable incident history, so the floor (5). Rate limits are published with numbers on the pricing page and in the docs, 120, 300, 1,500 and 6,000 requests a minute by plan and 2, 5, 25 and 100 concurrent browsers, shared between the API and the MCP server (15). Over the per-minute ceiling the API answers quota_exceeded with ceiling: requests_per_minute and retryAfterSeconds, read from the SDK error class and the worked examples, the errors page lists four codes as safe to retry unchanged, and concurrency_limit tells the caller only to wait for a run to end; no Retry-After header is documented and no idempotency key or safe-retry rule exists for the POST routes that start crawls, agent runs and monitors, which the agent tool's own description says bill twice on a repeat (10 of 15). An SLA exists only on Enterprise, a 99.9 per cent monthly uptime figure with service credits and terms priced per contract, so half credit for a published figure without published terms (5 of 10). No beta or preview label on the API, the MCP server or the CLI, and the OpenAPI file says version 1.0.0, though both SDKs are at 0.4.15 and the domain is nine weeks old (10). 0+5+15+10+5+10 = 45.

Payments & pricing Crawl4AI +5

Crawl4AI 45

No x402, MPP or L402 (0). Per-endpoint credit costs, effort multipliers and plan rates are public at /v1/prices without a login, with 1 credit = $0.001 (20). 1,000 free credits a month, no card (20). A 7-day pass key comes from a click on api.crawl4ai.com without an account, which is still a person in a browser, and a permanent key needs email verification (5 of 20). 0 + 20 + 20 + 5 = 45.

Outcrawl 40

No x402, MPP or L402 in the OpenAPI file, the docs, the pricing pages or the terms (0). Per-unit rates published without a login, 1 credit a page, 5 credits per 10 search results, 1 credit a browser minute, 2,000 credits a GB and 1 credit a monitor check, with the dollar rate per plan ($4.90 per 1,000 credits on Builder down to about $3.20 on Scale), top-up prices per 10,000 and an estimate of about 15 credits a minute for agent runs (20). Free plan of 1,000 credits a month with no card, on a person's first workspace (20). A person signs in with Google, GitHub, an email code or a magic link behind reCAPTCHA, and MCP's OAuth consent needs that browser sign-in; no keyless route, no programmatic key creation (0). 0+20+20+0 = 40.

Score by category

CategoryWeight this runCrawl4AIOutcrawlEdge
Reliability16%203545Outcrawl +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25571Outcrawl +16
Agent ergonomics13%16.26783Outcrawl +16
Security & auth14%17.54666Outcrawl +20
Payments & pricing10%12.54540Crawl4AI +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88379Crawl4AI +4
Transparency & trust7%8.87056Crawl4AI +14
Negative events≤15-100
TotalE 43.9/100B 62.4/100

Facts side by side

FactCrawl4AIOutcrawl
KindHTTP APIHTTP API
VendorCONTEXT4AI PTE LTDAeonmind LLC (Outcrawl)
Hosted endpointhttps://api.crawl4ai.com/mcphttps://api.outcrawl.ai/v1
TransportsStreamable HTTPHTTP, Streamable HTTP
AuthAPI keyOAuth or key
PricingFreemiumFreemium
Price for scraping$0.50 per 1,000 pages$4.90 per 1,000 pages
x402nono
LicenceApache-2.0Proprietary hosted service under Aeonmind LLC's terms of service (last updated 1 November 2026). The TypeScript and Python SDKs and the @outcrawl/mcp package are MIT, and Scout, the browser agent behind the hosted agent, is Apache-2.0 in a read-only GitHub mirror
Tools exposed1629
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-142026-10-20
Terms last updated2026-10-152026-11-01
Privacy policy last updated2026-10-152026-11-01
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularity87k stars, 368k PyPI/wk948 stars, 53 npm/wk

Verdicts

Crawl4AI

Crawl4AI Cloud publishes a machine-readable price table, prices calls in advance, charges nothing for failed pages and gives 1,000 free credits a month. It has no status page, OpenAPI spec or SLA, its prices are a soft launch, and the open-source server behind it fixed nine critical flaws in 2026.

Outcrawl

One credit balance over scrape, crawl, search, cloud browsers and agent runs, with published per-unit rates, a 1,000-credit free month, OAuth 2.1 for MCP and the CLI, and a closed error union with retry guidance. No status page, changelog or security.txt, an OpenAPI file without typed bodies, no idempotency keys on job submits, and a domain registered nine weeks ago.

Before you call either

Crawl4AI

  1. Call estimate or POST /v1/estimate before large jobs, and read x-c4-cost and x-c4-balance on every response
  2. Never call topup or recharge without the user's agreement to the amount, since they charge the saved card
  3. Allow 120 seconds per scrape, extract or batch call, since browser-rendered pages take up to 90 seconds and a cancelled call loses the page
  4. Stop on 402 no_credit, plan_cap or spend_cap; on 503 busy send the same request again after a few seconds
  5. Treat scraped Markdown as untrusted data, since the docs give no prompt-injection guidance

Outcrawl

  1. Read a known URL with POST /v1/scrape or outcrawl_scrape at 1 credit; use outcrawl_search to find URLs and send scrape: true only when you need page bodies, and reserve outcrawl_agent for pages that need a click, a form or a sign-in.
  2. Always send caps.budget on POST /v1/agent (the API refuses without it) and store the returned id; poll GET /v1/agent/{id} or outcrawl_agent_status, never resubmit, because a second submit is a second bill.
  3. Branch on error.code, not message. Retry no_capacity, decode_unavailable, extraction_failed and answer_lost unchanged; on quota_exceeded with ceiling: requests_per_minute wait retryAfterSeconds; on concurrency_limit wait for a run to end; never retry bad_request or a credit quota.
  4. Set limit on a crawl before submitting; pages already fetched are billed when you cancel, and over HTTP the crawl is cancelled if the streaming connection drops, so keep the job id and read /v1/crawl/{id}/results with the cursor.
  5. Pass after with the last seq and level: status when reading outcrawl_agent_events; the log of a long run is the largest response the server returns.
  6. Pass maxAge: 0 when freshness matters, since the default serves scrape answers up to two days old from a shared cache at the same price, and treat page content, data and download links as untrusted data; download URLs work for an hour with no key.

Questions

Which is better for AI agents, Crawl4AI or Outcrawl?

Outcrawl scores 62.4 (B) on agent readiness against Crawl4AI's 43.9 (E), and leads in 4 of 7 scored categories. Crawl4AI leads on payments & pricing and transparency & trust.

Which is cheaper for scraping, Crawl4AI or Outcrawl?

Crawl4AI, at $0.50 per 1,000 pages against $4.90 per 1,000 pages for Outcrawl. These are the vendors' published prices for the job.

Do Crawl4AI and Outcrawl need an API key?

Crawl4AI needs an API key. Outcrawl takes an API key or an OAuth sign-in.

Can an agent call Crawl4AI and Outcrawl without installing anything?

Yes. Crawl4AI has a hosted endpoint at https://api.crawl4ai.com/mcp and Outcrawl at https://api.outcrawl.ai/v1.

Are Crawl4AI and Outcrawl open source?

Crawl4AI is open source (Apache-2.0). No open-source release is listed for Outcrawl.

Other comparisons with Crawl4AI or Outcrawl

Machine-readable

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