# NousResearch/hermes-agent · Custom endpoint base URL missing /v1 causes chat 404s

## Open now

- Nothing open on GitHub.

The members concern custom OpenAI-compatible endpoints entered without /v1, where model detection works but chat requests reportedly return 404. One issue describes the problem and two pull requests propose changes to how the base URL is saved or handled; their outcomes are not established here.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #115828. Verify it addresses your case.
- **Recommended:** read PR #115828 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #65488: Custom OpenAI-compatible endpoint saved without /v1: model detection succeeds but every chat call 404s

## Prior & competing PRs

- **#115828: fix(dashboard): custom endpoint typed without /v1 saves the URL that served /models, so chat no longer 404s (#65488, salvage #65489)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `apps/desktop/src/api/config.ts`, `apps/desktop/src/app/settings/custom-endpoints-settings.test.tsx`, `apps/desktop/src/app/settings/custom-endpoints-settings.tsx`, `apps/desktop/src/store/onboarding.test.ts`, `apps/desktop/src/store/onboarding.ts`, `apps/desktop/src/types/hermes.ts`, `hermes_cli/web_routers/config_env.py`, `tests/hermes_cli/test_web_routers_endpoint_probe.py`, `tests/hermes_cli/test_web_server.py`, `website/docs/user-guide/local-models.md`
- **#65489: fix(providers): resolve \`/v1\` base-url mismatch between model detection and chat**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `754d229bea94`, `#115828`, `#65488`, `#65489`

## Fix status

- Merged to main in PR #115828 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-19`.
- Subsystem: `agent/transports`