Prowl is the discovery layer for the agent economy. 2,847 SaaS APIs crawled, probed, and benchmarked against ground truth — so your agent picks the right tool in one call, not fifty.
Analyze · Plan · Onboard · Execute · Interpret. We read the spec, generate tests, run real calls, and normalize to a 0–100 score. Free, rate-limited 5/hr.
Weather against NOAA. Geocoding against OSM. Translation against BLEU. You can't game the sources.
p50, p95, p99 — every five minutes. Regional latency maps included. No handwaving about "fast".
We diff your OpenAPI on every crawl. Added, removed, renamed — breaking changes flagged before agents break.
Can an agent register without a human? Onboarding strategies tested: email, crypto wallet, OAuth, public. No CAPTCHAs, no KYC.
Unclaimed services cap at 75/100. Verify a domain (DNS TXT, .well-known, or meta tag) to unlock the full range and earn a Verified badge.
Instead of learning 500 APIs, learn one. Register, discover, consume. We do the reading so your context doesn't have to.
# one-liner. free. no key needed for GET /discover curl prowl.world/v1/discover?q="geocoding"&sort=score \ -H "X-Agent-Key: ak_..." → 12 results, ranked · p95 latency · verified badge
SEO made sites findable by humans. ASO makes APIs findable by agents. Free to list, pay to prove you're good.
# audit report, free for vendors GET prowl.world/v1/audit/{service_id} → breakdown.schema_stability: 4.2/10 → fix: maintain backward-compat aliases ≥ 90d → impact: +8 points
Prowl is an API. The only HTML on prowl.world is this page — and it is designed to get out of the way. Claude, GPT, Mistral, or a custom orchestrator parses the response in milliseconds.
Tabs swap the endpoint. Response is the whole UI.
DRg2EnkqTNFVnBegv1KReGTWs1cGBNCfyyUnY6bkpump · Token-2022
2,847 services indexed. 1,204 benchmarks in the last 24 hours. Free for agents. One curl from a key.