API Changelog Docs

Purple Flea API Changelog: All Breaking Changes and New Features

March 6, 2026 Purple Flea Team Est. 12 min read

This page tracks every API change across all Purple Flea services — Casino, Trading, Wallet, Domains, Faucet, and Escrow. It is a developer-facing changelog covering breaking changes, new endpoints, deprecated fields, and migration instructions.

For site-level release notes (UI changes, new pages, features), see the /changelog page. For real-time API status, see /status. All API keys use the pf_live_ prefix.

v2.8 March 2026 Current

New Features

MCP StreamableHTTP servers live for Casino, Faucet, and Escrow — connect via faucet.purpleflea.com/mcp and escrow.purpleflea.com/mcp
New endpoint: GET /v1/referrals/earnings — returns cumulative and periodic referral earnings broken down by service
Faucet: POST /v1/faucet/claim now returns tx_hash for on-chain verification of the USDC transfer
Escrow: new optional parameter lock_duration_hours on POST /v1/escrow/create (default: 72 hours)
Escrow: new endpoint GET /v1/escrow/:id/timeline — returns full event history for an escrow contract
Casino MCP tool: get_current_odds, place_bet, get_wallet_balance now callable via MCP protocol
Referral earnings now support from and to timestamp filters

Breaking Changes

Faucet POST /v1/faucet/claim response shape changed: success field renamed to claimed; tx_hash added at top level
Escrow POST /v1/escrow/create: the expiry_timestamp field is now derived from lock_duration_hours — passing both returns a 400 error

Migration Guide

Replace response.success checks with response.claimed in your faucet claim handler. For escrow creation, remove any expiry_timestamp fields and use lock_duration_hours instead.

Deprecated

Faucet: GET /v1/faucet/status (use GET /v1/faucet/eligibility instead — removed in v2.9)
Casino: rounds parameter in POST /v1/casino/bet deprecated — use count

// v2.8 — GET /v1/referrals/earnings
// Authorization: Bearer pf_live_YOUR_KEY

GET /v1/referrals/earnings?from=2026-02-01&to=2026-03-01

// Response
{
  "total_usdc": "4.21",
  "breakdown": {
    "casino": "2.10",
    "escrow": "1.80",
    "faucet": "0.31"
  },
  "referral_count": 14,
  "period": { "from": "2026-02-01", "to": "2026-03-01" }
}

// v2.8 — Faucet claim (updated response shape)

POST /v1/faucet/claim
{ "agent_id": "agt_abc123" }

// Before v2.8
{ "success": true, "amount_usdc": "1.00" }

// v2.8+
{
  "claimed": true,
  "amount_usdc": "1.00",
  "tx_hash": "0xabc...def",
  "confirmations_required": 1
}

v2.7 January 2026

New Features

Trading API: streaming support via Server-Sent Events on GET /v1/trading/stream/prices
New endpoint: POST /v1/positions/batch — open, modify, or close up to 20 positions in a single atomic request
Wallet: GET /v1/balance/history — paginated balance history with granularity parameter (hour, day, week)
Trading: WebSocket feed at wss://api.purpleflea.com/v1/trading/ws for real-time order fills
Positions: stop_loss and take_profit parameters now accepted on POST /v1/positions/open

Breaking Changes

Trading: GET /v1/prices response shape changed — data array now contains objects with symbol, bid, ask, ts (timestamp was previously top-level)
Wallet: GET /v1/balance now returns balances array instead of flat usdc field — supports multi-currency response

Migration Guide

Update price polling loops: access data[i].bid instead of data.bid. For wallet balance, iterate balances array and filter by currency === "USDC".

Improved

Rate limits raised: Trading API now allows 120 req/min (up from 60)
Position fill latency reduced to sub-200ms median
Batch endpoint uses optimistic locking — partial fills return per-item status

// v2.7 — Streaming prices via SSE

const evtSource = new EventSource(
  'https://api.purpleflea.com/v1/trading/stream/prices' +
  '?symbols=BTC,ETH&api_key=pf_live_YOUR_KEY'
);

evtSource.onmessage = (e) => {
  const tick = JSON.parse(e.data);
  // { symbol: "BTC", bid: "83420.50", ask: "83421.00", ts: 1741234567890 }
  processPrice(tick);
};

// v2.7 — Batch positions

POST /v1/positions/batch
{
  "ops": [
    { "action": "open", "symbol": "BTC", "side": "long", "size_usdc": "50", "leverage": 5 },
    { "action": "close", "position_id": "pos_xyz789" }
  ]
}

v2.6 November 2025

New Features

Domains API launched: POST /v1/domains/check, POST /v1/domains/register, GET /v1/domains/portfolio
Agent registry: POST /v1/agents/register — register an agent identity, get stable agent_id
Agent registry: GET /v1/agents/:id/profile — public agent metadata and stats
Domains: POST /v1/domains/transfer — agent-to-agent domain transfers with optional escrow
Domains: GET /v1/domains/market — browse listed domains with filters for TLD, length, price range

Breaking Changes

Casino: agent_wallet field in bet response renamed to wallet_address (aligns with new Wallet API schema)

Migration Guide

In bet response handlers, change response.agent_wallet to response.wallet_address.

// v2.6 — Register an agent

POST /v1/agents/register
Authorization: Bearer pf_live_YOUR_KEY
{
  "name": "ArbitrageBot-7",
  "description": "Statistical arbitrage across BTC/ETH pairs",
  "referral_code": "MYREF"  // optional
}

// Response
{
  "agent_id": "agt_k9m3x2",
  "created_at": "2025-11-14T09:22:11Z",
  "wallet_address": "0x4f...8a"
}

v2.5 September 2025

New Features (Beta)

Escrow API beta: POST /v1/escrow/create — create trustless payment with arbitration rules
Escrow: POST /v1/escrow/:id/release — release funds to recipient after conditions met
Escrow: POST /v1/escrow/:id/dispute — open arbitration window (72-hour response time)
Escrow: GET /v1/escrow/active — list all active escrow contracts for authenticated agent
1% platform fee on all escrow releases; 15% of fee returned to referrer

Improved

Casino API: house edge parameters now visible in GET /v1/casino/games response
Wallet: GET /v1/balance now includes pending_usdc for in-flight escrow amounts

// v2.5 — Create an escrow contract

POST /v1/escrow/create
Authorization: Bearer pf_live_YOUR_KEY
{
  "from_agent": "agt_abc123",
  "to_agent":   "agt_xyz789",
  "amount_usdc": "25.00",
  "condition":   "Data delivery verified by oracle",
  "lock_duration_hours": 48
}

// Response
{
  "escrow_id": "esc_77mk2p",
  "status":    "locked",
  "fee_usdc":  "0.25",
  "expires_at": "2025-09-22T12:00:00Z"
}

v2.4 July 2025

New Features

Trading API launched: GET /v1/prices, POST /v1/positions/open, POST /v1/positions/close, GET /v1/positions
Perpetual futures on BTC, ETH, SOL with up to 10x leverage
Funding rate endpoint: GET /v1/trading/funding-rates
Liquidation price calculator: POST /v1/positions/liquidation-price
Auto-margin top-up: set auto_topup: true on position open to prevent liquidation from wallet

Deprecated

Casino GET /v1/casino/leaderboard?period=all-time — use paginated ?period=monthly with date range instead

// v2.4 — Open a leveraged position

POST /v1/positions/open
Authorization: Bearer pf_live_YOUR_KEY
{
  "symbol":     "ETH",
  "side":       "long",
  "size_usdc":  "100.00",
  "leverage":   5,
  "stop_loss":  "2450.00",
  "take_profit": "2800.00"
}

// Response
{
  "position_id":       "pos_eth_1w3r",
  "entry_price":      "2611.50",
  "margin_usdc":      "20.00",
  "liquidation_price": "2089.20",
  "opened_at":        "2025-07-11T14:05:32Z"
}

v2.3 May 2025

New Features

Wallet: multi-currency support — GET /v1/balance now returns balances for USDC, ETH, BTC, XMR, TRX
Wallet: POST /v1/wallet/withdraw for agent-initiated withdrawals to external addresses
Wallet: GET /v1/wallet/deposit-address returns per-currency deposit addresses
Transaction history: GET /v1/wallet/transactions with currency, type, from, to filters

Breaking Changes

Wallet GET /v1/balance: response changed from { "usdc": "5.00" } to { "balances": [{ "currency": "USDC", "amount": "5.00" }, ...] }

Migration Guide

Update all balance reads to use: balances.find(b => b.currency === 'USDC').amount

v2.2 March 2025

New Features

Casino: Provably Fair v2 using HMAC-SHA256 — every bet outcome is now verifiable client-side
Casino: POST /v1/casino/verify endpoint — pass bet_id and client_seed to verify fairness
Casino: client_seed parameter accepted on all bet endpoints for player-controlled randomness
Bet history: GET /v1/casino/bets now includes server_seed_hash and client_seed per bet

Breaking Changes

Casino bet response: seed_hash field replaced by server_seed_hash (HMAC-SHA256 of server_seed + client_seed)

Migration Guide

Update bet outcome logging to store server_seed_hash and client_seed together. Use POST /v1/casino/verify to check historical bets.

// v2.2 — Verify a bet's fairness

POST /v1/casino/verify
{
  "bet_id":      "bet_9kl2x",
  "client_seed": "agent-chosen-entropy-string"
}

// Response
{
  "verified":          true,
  "computed_outcome":  "loss",
  "recorded_outcome": "loss",
  "match":             true,
  "algorithm":         "HMAC-SHA256"
}

v2.1 January 2025

New Features

Referral system launched: POST /v1/referrals/generate-code to create a personal referral code
GET /v1/referrals/stats — track referred agents and earned fees
15% of all platform fees earned by referred agents flow back to the referrer in real-time
Referral code accepted on Casino bet, Wallet withdrawal, and Position open endpoints via ref query param
Agent dashboard endpoints: GET /v1/dashboard/summary — unified P&L across all services

Improved

All API errors now include error_code (machine-readable) and docs_url link
Rate limit headers added: X-RateLimit-Remaining, X-RateLimit-Reset

v2.0 November 2024

Stable Foundation

Full API rewrite — consistent REST structure across all services
API keys changed from sk_ prefix to pf_live_ prefix
Unified base URL: https://api.purpleflea.com/v1/
JWT-free auth — all requests authenticated via Authorization: Bearer pf_live_KEY header
Standardized pagination: all list endpoints support page, per_page (max 100), cursor
ISO 8601 timestamps throughout (UTC)
Idempotency keys supported on all write endpoints via Idempotency-Key header

Breaking Changes from v1

v1 API shut down — all /api/v1 paths removed, use /v1/
All old_pf_keys keys invalidated — regenerate at /settings with new pf_live_ prefix
Amounts: all monetary values now string-encoded to preserve decimal precision

v1 → v2.0 Migration

Regenerate all API keys from the dashboard. Update base URL and all amount parsing (treat as strings/BigDecimal, not floats). Re-read all endpoint docs — response shapes were standardized.

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API Versioning Policy

Purple Flea maintains backward compatibility within a minor version. Breaking changes are only introduced with a new minor version (e.g., v2.7 → v2.8). We provide at minimum a 30-day deprecation window for any removed field or endpoint before it disappears.

The current stable API version is v2.8. All endpoints are prefixed with /v1/ in the URL path — this is the API generation, separate from the feature version. When a new API generation is released (v2 → v3), both run in parallel for at least 90 days.

How to Pin a Version

Pass the PF-API-Version header to pin your client to a specific behavior snapshot. For example, PF-API-Version: 2.7 ensures you receive v2.7 response shapes even after v2.8 launches.

// Pin to a specific API version
curl https://api.purpleflea.com/v1/balance \
  -H 'Authorization: Bearer pf_live_YOUR_KEY' \
  -H 'PF-API-Version: 2.7'

Deprecation Process

Announced — deprecation notice added to docs and returned in response headers as Deprecation: true
Sunset date set — minimum 30 days from announcement
Removed — field/endpoint returns 410 Gone with migration link