Binance P2P Trading Skill

Help users interact with Binance P2P (C2C) via natural-language queries.

When to Use / When NOT to Use

Use this skill when the user wants to:

• Check P2P buy/sell quotes for a crypto/fiat pair (e.g., USDT/CNY).
• Search P2P advertisements and filter by payment method(s), limits, merchant quality.
• Compare prices across payment methods (e.g., Alipay vs bank transfer).
• View their own P2P order history / summary (requires API key).
• Query order detail and view full order timeline (requires API key).
• Check appeal/complaint status and view complaint history (requires API key).
• Submit evidence for an existing appeal (upload files + submit description) (requires API key).
• View complaint process timeline (flow of actions, CS notes, evidence) (requires API key).
• Cancel an existing appeal (withdraw complaint, irreversible) (requires API key).
• View available complaint reasons for an order (requires API key).
• Publish, update, or manage P2P advertisements (requires API key + merchant permission).
• View merchant profiles and their ad listings (requires API key).
• Query supported digital and fiat currencies (requires API key).

Do NOT use this skill when the user asks about:

• Spot/Convert prices, futures/derivatives, margin, trading bots.
• Deposits/withdrawals, wallet transfers, on-chain transactions.
• Creating/cancelling orders, releasing coins (trading operations). Cancelling appeals (complaints) IS supported.
• Initiating new appeals (submit-complaint is deferred; evidence supplement for existing appeals IS supported).
• Sending chat messages in order conversations.

Ask clarifying questions (do not guess) if any key inputs are missing:

• fiat (e.g., CNY)
• asset (e.g., USDT)
• user intent: buy crypto or sell crypto
• preferred payment method(s)
• target amount (optional but recommended for ad filtering)

Core Concepts

tradeType mapping (avoid ambiguity)

• User wants to buy crypto (pay fiat, receive USDT/BTC) → tradeType=BUY
• User wants to sell crypto (receive fiat, pay USDT/BTC) → tradeType=SELL

Always reflect this mapping in responses when the user's wording is ambiguous.

Capabilities

Phase 1 — Public Market (No Auth)

• Quote P2P prices
• Search ads
• Compare payment methods
• Filter/Rank ads by limits and merchant indicators

Phase 2 — Personal Orders (Requires API Key)

• List P2P order history
• Filter by trade type / time range
• Provide summary statistics

Phase 3 — Order & Appeal + Ad Publish & Management (Requires API Key)

• Query order detail by order number
• List orders with rich filters (status, trade type, asset, date range)
• View order timeline (creation → payment → release → completion)
• Detect appeal status and show appeal details
• Query complaint/appeal records with filters
• Get market reference prices for pricing decisions
• Upload appeal evidence files (S3 presigned URL + submit)
• View complaint process timeline / flow details
• Cancel an existing appeal / withdraw complaint
• Get available complaint reasons for an order
• Search and analyze market ad distribution
• Get available ad categories for current user
• Get user's configured payment methods
• List all system trade methods
• Publish new advertisements (with confirmation)
• Update existing ad parameters (with confirmation)
• Update ad status: online / offline / close (with confirmation)
• View merchant profile and ad listings
• List all supported digital currencies
• List all supported fiat currencies

Environment Configuration

Base URLs (production)

Logical Name	URL
SAPI_BASE	https://api.binance.com
MGS_BASE	https://www.binance.com
C2C_WEB	https://c2c.binance.com

Implementation hint (for code generation)

When the skill generates curl / Python / JS code, use these fixed base URLs:

import os

SAPI_BASE = "https://api.binance.com"
MGS_BASE  = "https://www.binance.com"
C2C_WEB   = "https://c2c.binance.com"

def common_headers(api_key: str) -> dict:
    return {
        "X-MBX-APIKEY": api_key,
        "User-Agent": "binance-wallet/1.0.0 (Skill)",
    }

# Usage:
# f"{SAPI_BASE}/sapi/v1/c2c/agent/orderMatch/getUserOrderDetail"
# f"{MGS_BASE}/bapi/c2c/v1/public/c2c/agent/quote-price"
# f"{C2C_WEB}/en/adv?code={advNo}"
# headers = common_headers(os.getenv("BINANCE_API_KEY"))

# Bash equivalent:
SAPI_BASE="https://api.binance.com"
MGS_BASE="https://www.binance.com"
C2C_WEB="https://c2c.binance.com"

Note: SAPI signing uses HMAC SHA256, no param sorting required.

Security & Privacy Rules

Credentials

• Required env vars:
  • BINANCE_API_KEY (sent as header)
  • BINANCE_SECRET_KEY (used for signing)

Never display full secrets

• API Key: show first 5 + last 4 characters: abc12...z789
• Secret Key: always mask; show only last 5: ***...c123

Permission minimization

• Binance API permissions: Enable Reading only (Phase 1/2).
• Phase 3 ad management additionally needs write permissions.
• Do NOT request/encourage withdrawal or modification permissions beyond what's needed.

Storage guidance

• Prefer environment injection (session/runtime env vars) over writing to disk.
• Only write to .env if the user explicitly agrees.
• Ensure .env is in .gitignore before saving.

⚠️ CRITICAL: SAPI Signing (Different from Standard Binance API)

Parameter ordering

• DO NOT sort parameters for SAPI requests.
• Keep original insertion order when building the query string.

Example:

# ✅ Correct for SAPI: keep insertion order
params = {"page": 1, "rows": 20, "timestamp": 1710460800000}
query_string = urlencode(params)  # NO sorting

# ❌ Wrong (standard Binance API only): sorted
query_string = urlencode(sorted(params.items()))

Signing details

See: references/authentication.md for:

• RFC 3986 percent-encoding
• HMAC SHA256 signing process
• Required headers (incl. User-Agent)
• SAPI-specific parameter ordering

API Overview

Public Queries (MGS C2C Agent API — No Auth)

Base URL: https://www.binance.com

Endpoint	Method	Params	Usage
/bapi/c2c/v1/public/c2c/agent/quote-price	GET	fiat, asset, tradeType	Quick price quote
/bapi/c2c/v1/public/c2c/agent/ad-list	GET	fiat, asset, tradeType, limit, order, tradeMethodIdentifiers	Search ads
/bapi/c2c/v1/public/c2c/agent/trade-methods	GET	fiat	Payment methods

Parameter notes:

• tradeType: BUY or SELL (treat as case-insensitive)
• limit: 1–20 (default 10)
• tradeMethodIdentifiers: pass as a plain string (not JSON array) — e.g. tradeMethodIdentifiers=BANK or tradeMethodIdentifiers=WECHAT. Values must use the identifier field returned by the trade-methods endpoint (see workflow below). ⚠️ Do NOT use JSON array syntax like ["BANK"] — it will return empty results.

Workflow: Compare Prices by Payment Method

When the user wants to compare prices across payment methods (e.g., "Alipay vs WeChat"), follow this two-step flow:

Step 1 — Call trade-methods to get the correct identifiers for the target fiat:

GET /bapi/c2c/v1/public/c2c/agent/trade-methods?fiat=CNY
→ [{"identifier":"ALIPAY",...}, {"identifier":"WECHAT",...}, {"identifier":"BANK",...}]

Step 2 — Pass the identifier as a plain string into ad-list via tradeMethodIdentifiers, one payment method per request, then compare:

GET /bapi/c2c/v1/public/c2c/agent/ad-list?fiat=CNY&asset=USDT&tradeType=BUY&limit=5&tradeMethodIdentifiers=ALIPAY&tradeMethodIdentifiers=WECHAT

Compare the best price from each result set.

Important: Do not hardcode identifier values like "Alipay" or "BANK". Always call trade-methods first to get the exact identifier strings for the given fiat currency.

Personal Orders (Binance SAPI — Requires Auth)

Base URL: https://api.binance.com

Endpoint	Method	Auth	Usage
/sapi/v1/c2c/orderMatch/listUserOrderHistory	GET	Yes	Order history
/sapi/v1/c2c/orderMatch/getUserOrderSummary	GET	Yes	User statistics

Authentication requirements:

• Header: X-MBX-APIKEY
• Query: timestamp + signature
• Header: User-Agent: binance-wallet/1.0.0 (Skill)

Output Format Guidelines

Price quote

• Show both sides when available (best buy / best sell).
• Use fiat symbol and 2-decimal formatting.

Example:

USDT/CNY (P2P)
- Buy USDT (you buy crypto): ¥7.20
- Sell USDT (you sell crypto): ¥7.18

Ad list

Return Top N items with a stable schema:

1. adNo (ad number / identifier)
2. price (fiat)
3. merchant name
4. completion rate
5. limits
6. payment methods (identifiers)

Avoid generating parameterized external URLs unless the API returns them.

Placing orders (when user requests):

• This skill does NOT support automated order placement.

• When user wants to place an order, provide a direct link to the specific ad using the adNo:

  https://c2c.binance.com/en/adv?code={adNo}
  

  • {adNo}: the ad number/identifier from the ad list result

  Example: https://c2c.binance.com/en/adv?code=123

• This opens the specific ad detail page where user can place order directly with the selected advertisement.

Personal orders

• Time format: YYYY-MM-DD HH:mm (UTC+0) — always display in UTC timezone
• Include: type, asset/fiat, amount, total, status
• Provide a brief summary line (count + totals) when filtering

Time field conversion (for createTime in listUserOrderHistory):

• The createTime field returns a Unix timestamp in milliseconds (13 digits).
• Convert to human-readable format in UTC+0 timezone:

  # Python example
  from datetime import datetime, timezone
  readable_time = datetime.fromtimestamp(createTime / 1000, tz=timezone.utc).strftime('%Y-%m-%d %H:%M (UTC+0)')
  
  # JavaScript example
  const readableTime = new Date(createTime).toISOString().replace('T', ' ').slice(0, 16) + ' (UTC+0)';
  // Or more explicitly:
  const date = new Date(createTime);
  const readableTime = date.getUTCFullYear() + '-' +
    String(date.getUTCMonth() + 1).padStart(2, '0') + '-' +
    String(date.getUTCDate()).padStart(2, '0') + ' ' +
    String(date.getUTCHours()).padStart(2, '0') + ':' +
    String(date.getUTCMinutes()).padStart(2, '0') + ' (UTC+0)';
  

• Always display the converted time to users with timezone info, not the raw timestamp.

Error Handling (User-Facing)

• Invalid API key (-2015): prompt to verify .env / API Management.
• Signature failed (-1022): warn about wrong secret, sorted params, or stale timestamp.
• Timestamp invalid (-1021): advise time sync / regenerate timestamp.
• Rate limit: ask to retry later.

Limitations (By Design)

This skill does NOT:

• Place/cancel orders
• Mark as paid / release coins
• Initiate new appeals / submit-complaint (only evidence supplement for existing appeals is supported)
• Post/modify advertisements (Phase 1/2 only — Phase 3 adds ad management for merchants)
• Expose sensitive order-detail endpoints beyond what's needed for history/summary

For in-app actions, guide users to the official P2P orders page (only as a general entry point).

Developer Notes

Version Check (First Invocation per Conversation)

On the first invocation of this skill per conversation, call:

• GET /bapi/c2c/v1/public/c2c/agent/check-version?version=2.0.0 (Base: https://www.binance.com)

Behavior:

• If needUpdate=true: show: New version of P2P Skill is available (current: {clientVersion}, latest: {latestVersion}), update recommended.
• Else / on failure: proceed silently.

Client-side operations

• Asset filtering: if API doesn't support it, fetch then filter locally.
• Aggregations: compute totals client-side when summary endpoint is insufficient.

---

Phase 3 — Order & Appeal + Ad Publish & Management

Phase 3 extends the skill from read-only market/order queries to write operations (ad management) and advanced order workflows (order detail, appeal/complaint tracking).

Phase 3 Design Constraints

Constraint	Details
Authentication	All Phase 3 features require API Key + Secret Key
Write-op confirmation	Any write operation (publish ad, update ad, change status) must show an operation summary and get explicit user confirmation before executing
API Key permissions	Phase 1 only needed "Enable Reading"; Phase 3 additionally needs write permissions for ad management
Privacy masking	Never display counterparty sensitive info (bank card, Alipay account, phone, email, real name) or internal IDs (payId). Even if the API returns these fields, filter them out in user-facing output. For payment methods, show only tradeMethodName (e.g. "支付宝")

---

Scene 1: Order Query & Appeal Handling

1.1 Query Order Detail

Trigger examples:

• "查看订单 20260315123456 的详情"
• "我最近那笔 USDT 买入订单怎么样了？"
• "帮我查一下这个订单号"
• "Show me the details of order 20260315123456"

Behavior:

1. If user provides an order number → call getUserOrderDetail
2. If user describes an order vaguely → call listOrders with filters, then let user pick
3. Based on order status, branch:

Status branch handling:

Status	Action
Completed (4)	Show full timeline (create → pay → confirm → complete), finish
Cancelled (6) / Expired (7)	Show cancel reason (timeout / manual / system), finish
In Progress (1=Unpaid, 2=Paid, 3=Releasing)	Show current step + countdown timers
In Appeal (5)	Auto-enter 1.2 — show appeal status

Output format (Order Detail):

📋 Order No: {orderNumber}
├─ Type: {tradeType} {asset}
├─ Amount: {amount} {asset} @ {price} {fiatUnit}
├─ Total: {fiatSymbol}{totalPrice}
├─ Status: {orderStatus description}
├─ Counterparty: {buyerNickname / sellerNickname}
├─ Created: {createTime in UTC+0}
│
├─ Timeline:
│  ├─ Created:     {createTime}
│  ├─ Paid:        {notifyPayTime or "—"}
│  ├─ Confirmed:   {confirmPayTime or "—"}
│  └─ Cancelled:   {cancelTime or "—"}
│
├─ Commission: maker {commissionRate}% = {commission} {asset}
│              taker {takerCommissionRate}% = {takerCommission} {asset}
└─ Complaint: {isComplaintAllowed ? "Allowed" : "Not Allowed"} | Status: {complaintStatus or "None"}

Countdown display (for in-progress orders):

• If status=1 (Unpaid): show "Payment deadline: {notifyPayEndTime}" with remaining time
• If status=2 (Paid): show "Release deadline: {confirmPayEndTime}" with remaining time

1.2 View Appeal / Complaint Status

Trigger:

• Automatically when order status = In Appeal (5)
• "这个申诉进展到哪了？"
• "订单 20260315123456 的申诉怎么样了？"
• "What's the appeal status?"

Behavior:

1. Call query-complaints with the order number
2. Display complaint info in structured format

Output format:

⚠️ Appeal Status for Order {orderNo}
├─ Complaint No: {complaintNo}
├─ Status: {complaintStatus description}
├─ Role: {roleIdentity} (COMPLAINANT / RESPONDENT)
├─ Reason: {reason}
├─ Created: {complaintCreateTime}
├─ Order Asset: {orderAsset} | Fiat: {orderFiat}
├─ Order Amount: {orderAmount} ({fiatSymbol})
├─ Amount in USDT: {orderAmountInUsdt}
└─ Dispute Amount: {disputeAmount}

Follow-up guidance (append after the status block, based on complaintStatus):

complaintStatus	Guidance to show
0 (Respondent Processing)	"Waiting for the counterparty to respond. You will be notified when there is an update."
1 (Complainant Processing)	"⚡ Action needed — you need to provide evidence or respond. Say "submit evidence for order {orderNo}" to upload proof now."
2 (CS Processing)	"💡 Both parties may still submit evidence at this stage. You can submit evidence directly through this skill — say "submit evidence for order {orderNo}" or "提交证据" to upload payment proof, screenshots, or other supporting documents."
3 (Completed)	"This appeal has been resolved."
4 (Cancelled)	"This appeal has been cancelled."

MUST follow: When complaintStatus is 0, 1, or 2 (appeal still active), NEVER tell the user to "go to the app" or "head to the dispute center". Always guide them to use this skill to submit evidence. The skill supports the full evidence upload flow (Scene 1.5).

Complaint status mapping:

Status Code	Display Name	Description
0	Respondent Processing (被申诉人处理中)	Complaint initiated, waiting for counterparty to respond
1	Complainant Processing (申诉人处理中)	Waiting for complainant to provide evidence or take action
2	CS Processing (客服处理中)	Customer service reviewing; both parties may submit evidence
3	Completed (已完成)	Appeal resolved
4	Complaint Cancelled (申诉取消)	Appeal withdrawn

Important: Do NOT confuse these with orderStatus codes — they are separate enums. When complaintStatus=2 (CS Processing), the user should be guided to submit evidence if needed; do NOT tell them to "wait for counterparty".

1.3 Complaint History Query

Trigger:

• "查看我的所有申诉记录"
• "最近3个月有哪些申诉？"
• "List my complaints as complainant"

Behavior:

1. Call query-complaints with optional filters (roleIdentity, status, date range)
2. Default: last 90 days if no date specified
3. Show paginated results

Output format:

📋 Complaint Records (Total: {total})
┌───────────┬──────────────┬──────────┬────────┬───────────────┐
│ Order No  │ Complaint No │ Status   │ Role   │ Created       │
├───────────┼──────────────┼──────────┼────────┼───────────────┤
│ {orderNo} │ {no}         │ {status} │ {role} │ {time UTC+0}  │
└───────────┴──────────────┴──────────┴────────┴───────────────┘

1.4 Order List & History

Trigger:

• "查看我的订单列表"
• "最近的 USDT 买入订单"
• "Show my completed orders this week"

Behavior:

• For active/recent orders → use listOrders (richer filter: advNo, status, payType)
• For historical orders → use listUserOrderHistory (supports tradeType, date range)

Output format (Order List):

📋 Orders (Page {page}, Total: {total})
┌──────────────┬──────┬───────┬──────────────┬────────┬───────────────┐
│ Order No     │ Type │ Asset │ Total        │ Status │ Created       │
├──────────────┼──────┼───────┼──────────────┼────────┼───────────────┤
│ {orderNo}    │ BUY  │ USDT  │ ¥{totalPrice}│ 已完成  │ {time UTC+0}  │
└──────────────┴──────┴───────┴──────────────┴────────┴───────────────┘

Order status code mapping:

Code	Name	Chinese
0	Pending	处理中
1	Unpaid	未付款
2	Paid (Unconfirmed)	已付款
3	Releasing	放币处理中
4	Completed	已完成
5	In Appeal	申诉中
6	Cancelled	已取消
7	Expired (System Cancel)	超时取消

1.5 Submit Appeal Evidence

Trigger:

• "帮我上传这个截图作为申诉证据"
• "我要提交付款凭证"
• "Submit evidence for order 228..."
• "Upload proof of payment for my appeal"
• Automatically suggested when order is in Appeal (status=5) and complaintStatus=2 (CS Processing)

Behavior (3-step flow):

Step 1 — Get presigned upload URL:

GET /sapi/v1/c2c/agent/file-upload/get-s3-presigned-url?fileName=proof.jpg&scenario=complaint
→ { "uploadUrl": "https://s3...presigned...", "filePath": "/client_upload/c2c/complaint/..." }

Step 2 — Upload file to S3:

curl -X PUT -T /path/to/local/file.jpg "{uploadUrl}"

The presigned URL is valid for 5 minutes. Upload must complete within this window.

Step 3 — Submit evidence to SAPI:

POST /sapi/v1/c2c/agent/complaint/submit-evidence
Body: { "orderNo": "228...", "description": "付款截图", "fileUrls": ["/client_upload/c2c/complaint/..."] }
→ { "data": true }

Supported file types: txt, doc, xls, docx, xlsx, jpg, jpeg, png, pdf, mp3, mp4, avi, rm, rmvb, mov, wmv

Output format (Upload Progress):

📤 Evidence Upload for Order {orderNo}
├─ Step 1/3: Getting upload URL... ✅
├─ Step 2/3: Uploading file "{fileName}"... ✅
├─ Step 3/3: Submitting evidence...
│  ├─ Description: {description}
│  └─ Files: {n} file(s)
└─ Result: ✅ Evidence submitted successfully

💡 Tip: You can submit additional evidence by saying "再上传一个文件"

Output format (Failure):

❌ Evidence Upload Failed
├─ Step: {which step failed}
├─ Error: {error message}
└─ Suggestion: {actionable fix}

Common errors:

• Unsupported file type → Check file extension; see supported types above
• Presigned URL expired → Re-request upload URL (Step 1)
• Order not in appeal → Evidence can only be submitted for orders with active complaints
• File too large → Reduce file size or split into multiple files

Write-op confirmation rule: Evidence submission follows the same confirmation protocol as Scene 2 write operations:

1. Show a summary of what will be submitted (file name, description, order number)
2. Wait for user to confirm before executing Step 3

Confirmation format:

📋 Evidence Submission Summary
├─ Order: {orderNo}
├─ Description: {description}
├─ Files to submit:
│  1. {fileName1} ({fileType}, uploaded ✅)
│  2. {fileName2} ({fileType}, uploaded ✅)
└─ ⚠️ Confirm submission? (reply "确认" or "confirm")

1.6 View Complaint Process Timeline

Trigger:

• "查看申诉的处理流程"
• "这个申诉经历了哪些步骤？"
• "Show complaint timeline for order 228..."
• "What happened in the appeal process?"

Behavior:

1. Call get-complaint-flows with orderNo (and optionally complaintNo)
2. Display chronological timeline of all process steps

Output format:

📜 Complaint Timeline: Order {orderNo} (Complaint #{complaintNo})
│
├─ [{createTime}] {creatorNickName}
│  ├─ Type: {infoType description}
│  ├─ Description: {description}
│  ├─ Evidence: {fileUrls count} file(s) attached
│  └─ Source: {source}
│
├─ [{createTime}] {operatorName or creatorNickName}
│  ├─ Type: {infoType description}
│  ├─ Remark: {remark}
│  └─ Evidence: {fileUrls or "None"}
│
└─ ... (chronological order)

💡 Actions: "提交证据" to submit evidence | "刷新" to check for updates

Info type mapping (for display):

infoType	Description
1	Complaint Initiated
2	Evidence Submitted
3	CS Review Note
4	Resolution / Decision

Note: fileUrls in the response are CDN-assembled URLs that can be directly accessed. remarkHtml takes precedence over remark when available for rendering.

1.7 Cancel Complaint / Appeal

Trigger:

• "取消这个申诉"
• "我不想继续申诉了"
• "Cancel my appeal for order 228..."
• "Withdraw my complaint"

⚠️ This is a DESTRUCTIVE action — mandatory confirmation required!

Cancelling an appeal is irreversible. The user forfeits their dispute and the order proceeds to its normal resolution. The agent MUST follow this strict confirmation protocol:

Behavior:

1. When user expresses intent to cancel, FIRST show a clear warning
2. Wait for explicit confirmation ("确认取消" / "confirm cancel" / "yes")
3. Only then call cancel-complaint with the orderNo
4. Display the result

Warning format (MUST show before executing):

⚠️ Cancel Appeal Confirmation
├─ Order: {orderNo}
├─ Current complaint status: {status from previous query if available}
│
╔══════════════════════════════════════════════╗
║  WARNING: This action CANNOT be undone!      ║
║  - Your appeal will be permanently withdrawn ║
║  - You will lose the right to dispute this   ║
║    order through the appeal process          ║
║  - The order will proceed to normal          ║
║    resolution without CS intervention        ║
╚══════════════════════════════════════════════╝
│
└─ Reply "确认取消" or "confirm cancel" to proceed

On success:

✅ Appeal Cancelled
├─ Order: {orderNo}
├─ Status: Appeal withdrawn
└─ The order will now proceed to normal resolution.