Scrapfly vs Spider
Spider scores higher on the AgentReady, 72/100 against 59/100. They differ on 11 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.
What each one is
Scrapfly. Scrapfly is a web scraping and browser automation platform that provides an API to scrape any public site, drive any browser, and power any agent.
Spider. Spider is a web data platform that provides an API to render, search, and extract live web content into clean formats.
Where Scrapfly is ahead
Scrapfly passes clear product positioning and public docs discoverable, and Spider does not. That is discover, whether an agent can find the product at all without being told it exists.
Where Spider is ahead
Spider passes search discoverable and llms-full.txt / full agent docs, and Scrapfly does not. That is discover, whether an agent can find the product at all without being told it exists.
It also holds adopt: fast time to first request, copyable quickstart, official typescript sdk and official python sdk. Scrapfly misses those.
And on operate, structured, predictable output, retry behavior documented and idempotency support. Scrapfly misses those.
What neither does
Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, machine-readable errors, rate-limit behavior predictable. If your agent needs any of those, you will be building it yourself either way.
Score, pillar by pillar
The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.
Discover. Scrapfly leads 80 to 73. Scrapfly misses search discoverable, llms-full.txt / full agent docs; Spider misses clear product positioning, public docs discoverable.
Understand. Both sit at 54/100 here. Scrapfly misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented; Spider misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented.
Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Spider leads 81 to 50. Scrapfly misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, official typescript sdk, official python sdk; Spider misses no mandatory sales call, programmatic credential creation.
Operate. Spider leads 78 to 53. Scrapfly misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Spider misses machine-readable errors, rate-limit behavior predictable.
Pricing
Scrapfly does not publish a machine-readable starting price and has a free tier. Spider starts at $1/GB and has a free tier.
| Scrapfly plans | Spider plans |
|---|---|
| - | Pay as you go $5 minimum top up |
| - | Unlimited $350/mo |
Signal by signal
| Signal | Scrapfly | Spider |
|---|---|---|
| AgentReady | 59 | 72 |
| Discovery | 80 | 73 |
| Understanding | 54 | 54 |
| Adoption | 50 | 81 |
| Operability | 53 | 78 |
| Public API | Yes | Yes |
| MCP server | Yes | Yes |
| OpenAPI spec | Yes | Yes |
| CLI | Yes | Yes |
| llms.txt | Yes | Yes |
| Self-serve signup | Yes | Yes |
| Free tier | Yes | Yes |
Which to pick
Spider clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Scrapfly and Spider. Alternatives to each: Scrapfly, Spider.
An agent can fetch this as data: POST /v1/compare {"slugs": ["scrapfly", "spider"]}