SecondDoor and Proven AgentFriendly
A public agent-readiness ranking of B2B software vendors.
Claims about Proven AgentFriendly checked August 2026. Their site.
What it is
Proven's AgentFriendly ranks over 510 B2B SaaS vendors on a dozen or so probes: crawlability, OpenAPI availability, MCP support, authentication surface, webhooks. Each vendor gets a public score page and an improvement plan. It is a lead magnet for Proven's main business, and a well-made one.
What it does well
- A genuinely useful public dataset of how B2B software vendors expose their API surface.
- Vendor pages rank well, so a listing there is worth having.
- The probes it runs are sensible and the improvement plans are concrete.
Choose Proven AgentFriendly when
- You are a B2B SaaS vendor and want to appear in a ranking your buyers may already be reading.
- You want a quick external audit of your API and integration surface specifically.
What SecondDoor measures that it does not
- Coverage beyond B2B SaaS: storefronts, publishers and service businesses are scored against their own funnels.
- A walked funnel rather than static probes, plus the human baseline and the gap.
- Monitoring, evidence, and fix files generated from your own scan.
Side by side
| Capability | SecondDoor | Proven AgentFriendly |
|---|---|---|
| Scans the site as a human visitor | Yes | No |
| Walks the funnel as an AI agent | Yes | No |
| Scores the human to agent gap | Yes | No |
| Checks the protocol surface (llms.txt, MCP, robots) | Yes | API surface focus |
| Screenshot evidence of the walk | Deep scans | No |
| Tracks citations in AI answers | No | No |
| Public leaderboard | Yes | Yes |
| Generates ready-to-serve fix files | Yes | Improvement plan |
| Scheduled rescans with regression alerts | Yes | No |
| Price | Free scan; monitoring from $29/mo | Free |
Common questions
I am on Proven's list. Does my SecondDoor score add anything?
Proven scores your API surface with static probes. SecondDoor walks your signup as an agent and as a person, and scores the difference. A vendor can rank well on API probes while an assistant still cannot complete the signup form, and that is the failure SecondDoor is built to catch.
The comparison that settles it is your own site. A free scan takes about a minute and the report is permanent.
Scan your site