Read-only discovery over the APIs.io catalog of API providers, their APIs, and the machine-readable artifacts each publishes. Searching the catalog, reading a provider or an API, and browsing tags, taxonomy and artifacts are free and need no key. Synthesis across the catalog — ratings, cohorts, cap…
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"apis-io","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Not distributed through a package registry we index.
| when | check | result | http | latency | detail |
|---|---|---|---|---|---|
| 6 h ago | mcp initialize | ok | 200 | 153 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 12 h ago | mcp initialize | ok | 200 | 318 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 19 h ago | mcp initialize | ok | 200 | 310 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 26 h ago | mcp initialize | ok | 200 | 147 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 33 h ago | mcp initialize | ok | 200 | 326 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 2 d ago | mcp initialize | ok | 200 | 402 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 2 d ago | mcp initialize | ok | 200 | 305 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 2 d ago | mcp initialize | ok | 200 | 164 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 3 d ago | mcp initialize | ok | 200 | 305 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
| 3 d ago | mcp initialize | ok | 200 | 297 ms | server apis.io 1.3.0 · protocol 2025-06-18 · 141 tools |
Attributed to the source that supplied each field. Treated as claims, not facts.
Read-only discovery over the APIs.io catalog of API providers, their APIs, and the machine-readable artifacts each publishes. Searching the catalog, reading a provider or an API, and browsing tags, taxonomy and artifacts are free and need no key. Synthesis across the catalog — ratings, cohorts, capabilities, gap analysis, stack design — is paid.
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
Every source is kept verbatim. Field changes are logged as events.