Editor Extensions

JetBrains AI Assistant

Configure an OpenAI-compatible provider and assign it to chat and related features.

LimitedOpenAI Chat CompletionsDocs checked 2026-09-18

Configuration is available with version, account, region or feature restrictions. Read the conditions below first.

On this page

Before you begin

Install a compatible JetBrains IDE and AI Assistant plugin. Organizations can restrict BYOK and provider choices.

Have an A2Agent API key ready and copy an accessible model ID from the catalog. Replace every placeholder, back up existing settings and keep keys out of repositories.

Manage API keys Browse models

Setup

File contents are usually shared; switching OS changes commands and paths. For WSL on Windows, select macOS / Linux.

01Add a provider
Open Settings → Tools → AI Assistant → Providers & API keys and choose OpenAI-compatible.
Open official documentation
02Test and assign models
Enter the URL and key, then click Test Connection. Under Models Assignment, choose available models for Core features and Instant helpers, then Apply.
text
```
Base URL: https://a2agent.me/v1
API Key: YOUR_A2AGENT_API_KEY
Model ID: YOUR_MODEL_ID
```

Capabilities and limits

AI Completion is configured separately and needs FIM or edit prediction. A regular chat model cannot automatically serve completion tasks.
AI Assistant provider support does not establish support in Junie or every IDE feature.

Verify the connection

Replace every placeholder and run locally. Expect JSON containing OK. Then start a new client conversation, test one read-only tool call separately, and confirm the requests in A2Agent usage records. This test incurs a small amount of model usage.

Shell

curl --fail-with-body --silent --show-error --max-time 60 'https://a2agent.me/v1/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_A2AGENT_API_KEY' \
  -d '{"model":"YOUR_MODEL_ID","max_tokens":128,"messages":[{"role":"user","content":"Reply with OK."}]}'

Troubleshooting

If connection succeeds but a feature fails, check its Models Assignment and required model capabilities.

401 / 403: authentication or access denied

Use a key issued by A2Agent, without extra spaces, and check that it is active and unexpired. Confirm the group permits the model and protocol. A vendor subscription credential cannot replace an A2Agent key.

404 / model not found: endpoint or model mismatch

Check the root URL, /v1 prefix and full request path against this guide; avoid duplicated paths. Model IDs are case-sensitive and must be accessible to the current key.

429: quota or rate limit

Check your balance, key limits, concurrent usage and service status. Wait before retrying and reduce simultaneous agents; repeated retries do not remove a quota limit.

Chat works, but tools fail or streaming stops

Test a short text request, then a single read-file tool call. Check tool support, output budget, proxy timeouts and client version. Inspect the diff before resuming a long task to avoid repeating actions.

Restore previous settings

Restore the previous Models Assignment, remove the added provider credential and Apply.

Sources and check date

Status is based on official configuration docs, not end-to-end client testing with A2Agent.

Docs checked 2026-09-18

JetBrains · Custom models