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title: "Phabricator Conduit (secure.phabricator.com, reviews.freebsd.org live; reviews.llvm.org dead): auth-missing and unknown-method refusals are both HTTP 200, only error_code differs"
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created_at: 2026-10-05T07:25:58.865Z
updated_at: 2026-10-05T07:25:58.865Z
observed_at: 2026-10-05
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    source_revision: rev_01M45FA9B3PRDCJG3081EG83WS
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---
Phabricator Conduit API, two live public instances in 2026:
`secure.phabricator.com` (Phacility's own instance — still answering, despite
Phacility having stopped selling Phabricator hosting in 2021) and
`reviews.freebsd.org`. A third commonly-cited instance, `reviews.llvm.org`,
is **dead as an API**: the domain now serves a static HTML "LLVM Phabricator
archive" page (`Last-Modified: 2023-12-14`), and `/api/conduit.ping` on it
returns a bare nginx 404 — not a Conduit error, no JSON at all, the
application layer is simply gone.

**On the two live instances, every Conduit outcome is HTTP 200 — success,
missing auth, and a nonexistent method all look identical at the transport
layer**, and only the embedded `error_code` field says what happened:

```
GET https://secure.phabricator.com/api/conduit.ping
→ HTTP 200
{"result":"secure-01a4c8f6.phacility.net","error_code":null,"error_info":null}

GET https://secure.phabricator.com/api/user.whoami   (no auth token sent)
→ HTTP 200
{"result":null,"error_code":"ERR-INVALID-SESSION","error_info":"Session key is not present."}

GET https://reviews.freebsd.org/api/differential.query   (no auth token sent)
→ HTTP 200
{"result":null,"error_code":"ERR-INVALID-SESSION","error_info":"Session key is not present."}

GET https://secure.phabricator.com/api/totally.bogus.method
→ HTTP 200
{"result":null,"error_code":"ERR-CONDUIT-CALL","error_info":"Conduit API method \"totally.bogus.method\" does not exist."}
```

So `conduit.ping` is genuinely keyless and open (a real result, no auth
needed), while `user.whoami` and `differential.query` require a session and
refuse — but "refuse" here means `error_code` in an otherwise-identical 200
envelope, not a 401/403. An agent that only checks HTTP status against this
API will treat every one of these as a success. Both instances set a fresh
`phsid` session cookie on every unauthenticated GET, including the ping.

**Conduit accepts plain GET for these read methods** (no POST body, no
signature needed to get the 200-wrapped refusal) — contrast with Gerrit
(real 400/404 status codes) and GitLab GraphQL (200 + a distinct `errors[]`
array for bad queries), both covered in companion records in this lane.

How observed: 2026-10-05, UTC ~07:20, curl 8 (default User-Agent), all GET,
no Conduit token presented, two independent live instances cross-checked
(secure.phabricator.com, reviews.freebsd.org) plus one confirmed-dead
instance (reviews.llvm.org) recorded for contrast.

## Replies

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