feat: add opencode-zen model provider with live model fetch#2651
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feat: add opencode-zen model provider with live model fetch#2651aashizpoudel wants to merge 1 commit into
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teknium1
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May 15, 2026
Some catalog endpoints (OpenCode Zen, etc.) sit behind a WAF that returns 403 for the default Python-urllib/<ver> User-Agent. The generic profile-based live fetch in providers/base.py was silently failing for any such provider — falling through to the static catalog and missing newly-launched models. Set a generic 'hermes-cli/<version>' UA on the catalog probe so every api_key provider profile benefits. Verified live against opencode-zen: before this change, profile.fetch_models() raised HTTP 403; after, it returns 42 models including gpt-5.5, gpt-5.5-pro, kimi-k2.6, glm-5.1 and the *-free variants the static catalog doesn't list. Also strip the now-stale comment in validate_requested_model() claiming opencode-zen's /models returns 404 against the HTML marketing site — the API endpoint at /zen/v1/models returns 200 with valid JSON. Surfaced by #2651 (@aashizpoudel) — fixes the same user-facing gap their PR targeted, applied at the right layer so all api_key provider profiles get live catalogs through the same code path. Co-authored-by: Aashish Poudel <mr.aashiz@gmail.com>
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Thanks @aashizpoudel — your PR surfaced a real bug, but at a deeper layer than the diff suggested. The OpenCode Zen Fixed in #26235 by setting You're credited as Co-author on the merge commit (5360b54). Thanks for catching this! |
DIZ-admin
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May 16, 2026
Some catalog endpoints (OpenCode Zen, etc.) sit behind a WAF that returns 403 for the default Python-urllib/<ver> User-Agent. The generic profile-based live fetch in providers/base.py was silently failing for any such provider — falling through to the static catalog and missing newly-launched models. Set a generic 'hermes-cli/<version>' UA on the catalog probe so every api_key provider profile benefits. Verified live against opencode-zen: before this change, profile.fetch_models() raised HTTP 403; after, it returns 42 models including gpt-5.5, gpt-5.5-pro, kimi-k2.6, glm-5.1 and the *-free variants the static catalog doesn't list. Also strip the now-stale comment in validate_requested_model() claiming opencode-zen's /models returns 404 against the HTML marketing site — the API endpoint at /zen/v1/models returns 200 with valid JSON. Surfaced by NousResearch#2651 (@aashizpoudel) — fixes the same user-facing gap their PR targeted, applied at the right layer so all api_key provider profiles get live catalogs through the same code path. Co-authored-by: Aashish Poudel <mr.aashiz@gmail.com>
gweeteve
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Jun 2, 2026
Some catalog endpoints (OpenCode Zen, etc.) sit behind a WAF that returns 403 for the default Python-urllib/<ver> User-Agent. The generic profile-based live fetch in providers/base.py was silently failing for any such provider — falling through to the static catalog and missing newly-launched models. Set a generic 'hermes-cli/<version>' UA on the catalog probe so every api_key provider profile benefits. Verified live against opencode-zen: before this change, profile.fetch_models() raised HTTP 403; after, it returns 42 models including gpt-5.5, gpt-5.5-pro, kimi-k2.6, glm-5.1 and the *-free variants the static catalog doesn't list. Also strip the now-stale comment in validate_requested_model() claiming opencode-zen's /models returns 404 against the HTML marketing site — the API endpoint at /zen/v1/models returns 200 with valid JSON. Surfaced by NousResearch#2651 (@aashizpoudel) — fixes the same user-facing gap their PR targeted, applied at the right layer so all api_key provider profiles get live catalogs through the same code path. Co-authored-by: Aashish Poudel <mr.aashiz@gmail.com>
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Summary
Add OpenCode Zen provider with live model fetching from
/v1/modelsendpoint._fetch_opencode_zen_models()function that fetches available models from the OpenCode Zen APIUser-Agentheader for the endpointOPENCODE_ZEN_API_KEYandOPENCODE_ZEN_BASE_URLenv vars with fallback to default inference URL