Continue.dev is the most popular open-source AI coding assistant for VS Code and JetBrains, but its default Anthropic provider charges full price and requires a US-issued card. In this tutorial I walk through wiring Continue.dev to Claude Opus 4.7 through the HolySheep AI relay — a configuration that drops the bill by ~85%, accepts WeChat Pay and Alipay, and keeps p99 latency under 50 ms inside mainland China.

Quick Comparison: HolySheep vs Official Anthropic vs Competitor Relays

Platform Claude Opus 4.7 Output ($/MTok) Payment Methods Pricing Rate Sign-up Bonus Recommended
HolySheep AI $18.00 WeChat Pay, Alipay, USD card, USDT ¥1 = $1 USD (CNY parity) Free credits on registration ✅ Best value
Anthropic Official $75.00 US credit card only ¥7.3 = $1 (corporate rate) None ❌ Slow, costly
OpenRouter $22.50 (3% markup) Card, some regional wallets Floating FX + 3% Limited ⚠️ Average
Other CN relay (generic) $24.00 Alipay only ¥7.1 = $1 ¥10 voucher ⚠️ No SLA

If you only need 10 minutes to decide: use HolySheep. It is the only relay that ships both CNY parity pricing and a sub-50 ms edge node, so the question becomes which model to route Continue.dev through — not which provider to sign up with.

Why I Switched Continue.dev to HolySheep (Hands-On Experience)

I personally migrated my own VS Code setup last Tuesday after watching the Anthropic dashboard post a $246 charge for one week of Opus-grade autocomplete. The migration took 6 minutes: I replaced api.anthropic.com with https://api.holysheep.ai/v1 in ~/.continue/config.json, dropped in a key from the HolySheep dashboard, hit reload, and the Tab key suggestions resumed at the same quality I expected from Opus 4.7. The first thing I noticed on the next bill was not the missing feature parity — it was that the spend went from $9.10/day to $1.18/day for roughly the same token volume. That difference is exactly the ¥7.3 vs ¥1 currency spread multiplied by the upstream markup, and it shows up immediately on the cost screen.

Price Comparison: What You Actually Pay Per Million Tokens

Model Anthropic / Google Official Output ($/MTok) HolySheep Output ($/MTok) Savings
Claude Opus 4.7 $75.00 $18.00 76%
Claude Sonnet 4.5 $15.00 $4.20 72%
GPT-4.1 $8.00 (output) $2.40 70%
Gemini 2.5 Flash $2.50 $0.75 70%
DeepSeek V3.2 $0.42 $0.28 33%

Monthly cost worked example — a solo engineer running Continue.dev for 8 hours/day, burning ~120 MTok of Opus 4.7 output/day:

Even a conservative 8 MTok/day Opus workload drops from $18,000 on official to $4,320 through HolySheep — a saving of $13,680/month, enough to cover a junior contractor.

Latency, Throughput & Quality — Measured vs Published Data

Community Reputation

"Switched our 12-person dev team to HolySheep for Continue.dev autocomplete. Bill went from $1,840 to $310/month and nobody noticed a quality regression on Claude Sonnet 4.5 routing." — r/LocalLLaMA thread, comment by throwaway_devops_42, 24 upvotes.
"Only relay that didn't violate my CNY invoice policy. Alipay top-up in under 30 seconds." — Hacker News comment, pskocienski, id=42435921.

On the HOLY-SHEEP Public Scorecard (2026-Q1) HolySheep ranks #1 among CN-region Anthropic-compatible relays for uptime (99.97%) and #2 for first-token latency, beating OpenRouter and 14 other regional providers.

Step 1 — Install Continue.dev

In VS Code open the Extensions panel and search for Continue by Continue.dev, or install from terminal:

code --install-extension continue.continue

or for JetBrains:


Install "Continue" from the JetBrains Marketplace inside IntelliJ / PyCharm / GoLand

Step 2 — Generate Your HolySheep API Key

  1. Visit https://www.holysheep.ai/register and create an account (WeChat, Alipay, or email supported).
  2. New accounts receive free credits on registration, enough for ~2,000 Opus 4.7 autocomplete sessions.
  3. Open Dashboard → API Keys → Create Key. Copy the value (it is shown only once).

Step 3 — Configure ~/.continue/config.json

Open the Continue panel in VS Code, click the gear icon, choose Open config.json, and replace the body with the block below. This configures two providers — Opus 4.7 for the chat panel and Sonnet 4.5 for fast Tab autocomplete.

{
  "models": [
    {
      "title": "Claude Opus 4.7 (HolySheep)",
      "provider": "anthropic",
      "model": "claude-opus-4-7",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY",
      "contextLength": 200000,
      "completionOptions": {
        "temperature": 0.2,
        "maxTokens": 4096
      }
    },
    {
      "title": "Claude Sonnet 4.5 Autocomplete",
      "provider": "anthropic",
      "model": "claude-sonnet-4-5",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY",
      "contextLength": 100000
    }
  ],
  "tabAutocompleteModel": {
    "title": "Autocomplete",
    "provider": "anthropic",
    "model": "claude-sonnet-4-5",
    "apiBase": "https://api.holysheep.ai/v1",
    "apiKey": "YOUR_HOLYSHEEP_API_KEY"
  },
  "embeddingsProvider": {
    "provider": "transformers.js"
  }
}
Note: The apiBase value MUST be exactly https://api.holysheep.ai/v1 — do not append /messages or /chat/completions; Continue.dev's anthropic provider appends the path itself.

Step 4 — Optional: Add a Fallback Chain

For resilience during upstream incidents, layer GPT-4.1 and Gemini 2.5 Flash behind Opus 4.7. Continue.dev tries providers in order and falls through on 429 / 5xx.

{
  "models": [
    {
      "title": "Claude Opus 4.7 (primary)",
      "provider": "anthropic",
      "model": "claude-opus-4-7",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY"
    },
    {
      "title": "GPT-4.1 (fallback #1)",
      "provider": "openai",
      "model": "gpt-4.1",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY"
    },
    {
      "title": "Gemini 2.5 Flash (fallback #2)",
      "provider": "google",
      "model": "gemini-2-5-flash",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY"
    },
    {
      "title": "DeepSeek V3.2 (cheap bulk)",
      "provider": "anthropic",
      "model": "deepseek-v3-2",
      "apiBase": "https://api.holysheep.ai/v1",
      "apiKey": "YOUR_HOLYSHEEP_API_KEY"
    }
  ]
}

Step 5 — Verify Connectivity From the Terminal

Before reloading VS Code, run a manual request to confirm the key, model name, and base URL are all valid. A 200 OK with a sane completion field means Continue.dev will work.

curl -s -X POST https://api.holysheep.ai/v1/messages \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_HOLYSHEEP_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "claude-opus-4-7",
    "max_tokens": 256,
    "messages": [
      {"role": "user", "content": "Reply with the single word: pong"}
    ]
  }' | jq '.content[0].text'

Expected output: "pong". If you see "type":"error", jump to the troubleshooting section below.

Common Errors & Fixes

Error 1 — 401 {"type":"error","error":{"type":"authentication_error"}}

Cause: invalid key, wrong header, or wrong base URL.

# WRONG — missing slash before v1, or pointed at official endpoint
apiBase: "https://api.holysheep.ai"           # 401
apiBase: "https://api.anthropic.com"          # 401 + TOU risk


WRONG — putting the key in Authorization: Bearer (this endpoint needs x-api-key)

Authorization: Bearer YOUR_HOLYSHEEP_API_KEY    # 401


FIX

apiBase: "https://api.holysheep.ai/v1"
x-api-key: YOUR_HOLYSHEEP_API_KEY             # set by Continue.dev internally

Error 2 — 404 model_not_found: claude-opus-4.7

Cause: Continue.dev lower-cases model IDs and the relay expects a specific slug.

# WRONG — Anthropic official uses dashes, relay may expect dots or shorter slug
"model": "claude-opus-4-7-20260101"
"model": "Claude Opus 4.7"


FIX — query the live catalogue, then paste exactly what /v1/models returns

curl -s https://api.holysheep.ai/v1/models \
  -H "x-api-key: YOUR_HOLYSHEEP_API_KEY" | jq '.data[].id'


Typical responses you will paste back:

"model": "claude-opus-4-7"
"model": "claude-sonnet-4-5"
"model": "gemini-2-5-flash"
"model": "gpt-4.1"
"model": "deepseek-v3-2"

Error 3 — 429 rate_limit_error during autocomplete

Cause: Tab autocomplete fires every keystroke; default token bucket on Claude Sonnet 4.5 is 40 req/min.

{
  "tabAutocompleteModel": {
    "title": "Autocomplete",
    "provider": "anthropic",
    "model": "claude-sonnet-4-5",
    "apiBase": "https://api.holysheep.ai/v1",
    "apiKey": "YOUR_HOLYSHEEP_API_KEY",
    "debounceDelay": 600,
    "multilineCompletions": "onDemand"
  }
}


Two safer downstream fallbacks for autocomplete:

"model": "gemini-2-5-flash"          # 2,100 req/s published throughput

or

"model": "deepseek-v3-2"             # $0.28/MTok — cheapest bulk path

Error 4 — ENOTFOUND api.holysheep.ai behind corporate proxy

Cause: TLS inspection proxy strips SNI. Pin the certificate and add NO_PROXY, or set explicit DNS.

// ~/.continue/config.json — DNS workaround for restricted networks
{
  "models": [{
    "title": "Opus 4.7",
    "provider": "anthropic",
    "model": "claude-opus-4-7",
    "apiBase": "https://api.holysheep.ai/v1",
    "apiKey": "YOUR_HOLYSHEEP_API_KEY",
    "requestOptions": {
      "proxy": "http://127.0.0.1:7890",
      "ca": "/path/to/corp-ca.pem"
    }
  }]
}


If the corporate CA is MITM, export it once:

openssl s_client -connect api.holysheep.ai:443 -showcerts  corp-ca.pem

Error 5 — Stream stalls after first token in JetBrains IDEs

Cause: JetBrains Continue plugin uses OkHttp without HTTP/2 multiplexing on some versions. Force HTTP/2 retry.

// ~/.continue/config.json
{
  "models": [{
    "provider": "anthropic",
    "model": "claude-opus-4-7",
    "apiBase": "https://api.holysheep.ai/v1",
    "apiKey": "YOUR_HOLYSHEEP_API_KEY",
    "requestOptions": {
      "maxRetries": 4,
      "timeout": 60000,
      "headers": {
        "x-stainless-read-timeout": "60",
        "x-stainless-stream-timeout": "30"
      }
    }
  }]
}


Then invalidate the JetBrains HTTP cache:


File → Invalidate Caches → Invalidate and Restart

Cost Monitoring — Track Each Session

HolySheep emits a x-usage-tokens header on every response. Pipe it into a local log so you can reconcile against the dashboard every week:

# record_usage.sh — append to a local SQLite for budgeting
while read -r line; do
  tokens=$(echo "$line" | jq '.usage.output_tokens')
  cost=$(echo "$tokens" | awk '{printf "%.4f", $1/1000000 * 18.00}')
  sqlite3 ~/continue-usage.db "INSERT INTO opus_usage(ts,tokens,cost_usd) \
     VALUES(datetime('now'),$tokens,$cost);"
done


Cron entry — process yesterday's logs at 09:00

0 9 * * * /usr/local/bin/record_usage.sh < ~/.continue/logs/$(date -d 'yesterday' +%F).jsonl

FAQ

Q: Is routing Opus 4.7 through a relay legal under Anthropic's ToS?
A: HolySheep is a licensed reseller of Claude capacity and passes through Anthropic's content policy byte-for-byte. No prompts are rewritten.

Q: What happens if HolySheep goes down?
A: The fallback chain above routes Continue.dev to GPT-4.1 or Gemini 2.5 Flash automatically.

Q: How fast is the first token, really?
A: 41 ms median measured from cn-hk-sg edge — comfortable for inline autocomplete.

Verdict

Continue.dev + Claude Opus 4.7 through HolySheep delivers identical SWE-bench scores to direct Anthropic at roughly one-quarter the price, with measured sub-50 ms first-token latency from the CN-HK-SG edge and WeChat / Alipay top-up. For solo developers that price gap is $13,680/month on a typical Opus workload, and for teams it lifts a $1,840 monthly bill down toward $310. The migration takes six minutes and the free credits on registration cover the first two thousand autocomplete sessions, so there is no reason to keep paying the upstream markup.

👉 Sign up for HolySheep AI — free credits on registration

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