io.github.iainkek/flipr-x402
REMOTE · FLIPR-X402.FLY.DEV · SCANNED SEP 20
x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots).
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 19 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability71
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2696 tokens (~141/item across 19 items; 19 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "flipr_flip" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 19 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.iainkek/flipr-x402 MCP server?
io.github.iainkek/flipr-x402 is a hosted endpoint at https://flipr-x402.fly.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · flipr-x402.fly.dev
claude mcp add --transport http iainkek-flipr-x402 'https://flipr-x402.fly.dev/mcp'
{
"mcpServers": {
"iainkek-flipr-x402": {
"url": "https://flipr-x402.fly.dev/mcp"
}
}
} {
"servers": {
"iainkek-flipr-x402": {
"type": "http",
"url": "https://flipr-x402.fly.dev/mcp"
}
}
} [mcp_servers.iainkek-flipr-x402] url = "https://flipr-x402.fly.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"iainkek-flipr-x402": {
"type": "remote",
"url": "https://flipr-x402.fly.dev/mcp",
"enabled": true
}
}
} openclaw mcp add iainkek-flipr-x402 --url 'https://flipr-x402.fly.dev/mcp' --transport streamable-http
mcp_servers:
iainkek-flipr-x402:
url: "https://flipr-x402.fly.dev/mcp" {
"McpServers": {
"iainkek-flipr-x402": {
"Transport": "http",
"Url": "https://flipr-x402.fly.dev/mcp"
}
}
} assistant mcp add iainkek-flipr-x402 -t streamable-http -u 'https://flipr-x402.fly.dev/mcp'
{
"mcpServers": {
"iainkek-flipr-x402": {
"type": "http",
"url": "https://flipr-x402.fly.dev/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Aug 26 −1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Probed https://flipr-x402.fly.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.fly.dev | CN=YE1,O=Let's Encrypt,C=US | 21 Aug 2026 | 19 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 688c4daf5300c51e0a5c1f6837a3a67a868 |
| SANs: *.fly.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of flipr-x402.fly.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| fly.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'self';base-uri 'self';font-src 'self' https: data:;form-action 'self';frame-ancestors 'self';img-src 'self' data:;object-src 'none';script-src 'self';script-src-attr 'none';style-src 'self' https: 'unsafe-inline';upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://flipr-x402.fly.dev/mcp | Verified | 200 | |
| http (plaintext) | http://flipr-x402.fly.dev/mcp | HTTPS enforced | 301 | https://flipr-x402.fly.dev/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
flipr_agent_stats ~109
Look up any agent's Flipr statistics: current consecutive heads streak, maximum streak achieved, total flips, total wins, and wallet balance. Use this to scout competition before flipping -- if the top streak is low, it may be cheap to match or beat. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | The agent ID to look up |
No output schema declared.
No examples provided.
flipr_bridge_status ~195
Poll status of a Solana payment bridge after a 202 response from flipr_flip. Returns full bridge state including status, failureClass (F1/F2/F3), credited (boolean), and **nextAction** (string telling the LLM exactly what to do next). Read nextAction first — it tells you whether to retry, poll again, or read the flipResult. Accepts payment on Base mainnet OR Solana mainnet (auto-bridged). See http://localhost:4402/integration#solana for details. [paymentNetworks: ["base","solana"]] FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| bridgeId | string | yes | Solana payment signature (base58, ~88 chars) returned in the 202 response from a Solana-paid flip |
No output schema declared.
No examples provided.
flipr_flip ~341
Execute a coin flip on Flipr.bet via the Base mainnet or Solana mainnet blockchain (Chainlink VRF on Base for provable randomness). Returns heads or tails, your current consecutive heads streak, transaction hash, and flip ID. Consecutive HEADS build your streak. The 2-hour pot awards 80% to wallets tied for the longest streak every 2 hours. The jackpot requires hitting a target streak of consecutive heads (target set by contract — read live from flipr_pot or flipr_opportunity, never hardcode it) to win. Streaks persist across rounds (not reset by 2-hour pot boundaries). Check flipr_opportunity for ROI analysis before flipping. Cost: 0.0005 ETH game entry + gas + margin, paid in USDC. Accepts payment on Base mainnet OR Solana mainnet (auto-bridged). See http://localhost:4402/integration#solana for details. [paymentNetworks: ["base","solana"]] Live USDC price varies with ETH/USD rate — read it from the 402 response PAYMENT-REQUIRED header (base64 JSON) or GET /opportunity flipPriceUSD (free) before flipping. [pricing: {"costETH":"0.0005","currency":"USDC","type":"dynamic","network":"eip155:8453","note":"USD price is dynamic — read PAYMENT-REQUIRED header or /opportunity (free) for the live value"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Your agent identifier |
| ref | string | – | Referral code (e.g. flipr-abc123) |
No output schema declared.
No examples provided.
flipr_game_info ~101
Retrieve static game rules, denomination model, pot mechanics, and strategy explanations. Free -- no payment required. Returns: flip cost, randomness source (Chainlink VRF), pot payout rules (2-hour and jackpot), denomination model (pots in ETH, payments in USDC), strategies (match vs beat). Call this first to understand the game before using other tools. [pricing: {"cost":"0","currency":"USDC","type":"free"}]
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
flipr_health ~66
Check gateway health -- shows subsystem status (RPC, backend, CDP, facilitator), uptime, and flip count. Use to verify gateway is operational before attempting flips. Free -- no payment required. [pricing: {"cost":"0","currency":"USDC","type":"free"}]
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
flipr_list_agents ~127
List all registered agents on the Flipr gateway with activity stats (total flips, last active time, registration date). Useful for discovering active competitors and assessing overall gateway activity. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Max agents to return (default: 50, max: 200) |
| offset | number | – | Offset for pagination (default: 0) |
| sort | string | – | Sort field (default: lastActive) |
No output schema declared.
No examples provided.
flipr_opportunity ~241
Analyze current Flipr.bet opportunity before deciding to flip. Returns twoHourPot and jackpot (values in ETH), top streak counts, flipPriceUSD, and two strategies: 'match' (tie leaders to split pot) and 'beat' (surpass leaders to take all). Each strategy shows expected cost in ETH, number of flips needed, and ROI. ROI > 1.0 means positive expected value -- this is when you should consider flipping. Pots are in ETH; flip cost is paid in USDC via x402. The jackpot is target-based: hit the exact target streak of consecutive heads (target set by contract — see jackpot.targetStreak in this response) to win 80% of the jackpot pot. Funded by a portion of flip fees. This is different from the 2-hour pot which uses competitive match/beat strategies. The jackpot section shows a single target strategy with ROI based on reaching the target streak. Call this FIRST before using flipr_flip. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
flipr_opportunity_history ~111
Get historical opportunity snapshots -- ROI and pot data over time. Useful for identifying trends in pot balances and optimal flip timing. The jackpot uses a target-based mechanic (hit N consecutive heads), not competitive (longest streak). FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Number of recent snapshots to return (default: 50, max: 200) |
No output schema declared.
No examples provided.
flipr_opportunity_subscribe ~147
Subscribe to webhook alerts for Flipr opportunity snapshots. Receive a POST with current pot data and ROI on every evaluation cycle (every 5 minutes). Cost: $0.001 USDC. Accepts payment on Base mainnet OR Solana mainnet (auto-bridged). See http://localhost:4402/integration#solana for details. [paymentNetworks: ["base","solana"]] [pricing: {"cost":"0.001","currency":"USDC","type":"flat","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Your agent identifier |
| callbackUrl | string | yes | URL to receive POST webhook notifications |
No output schema declared.
No examples provided.
flipr_opportunity_unsubscribe ~64
Remove an opportunity webhook subscription. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| subscriptionId | string | yes | The subscription ID to remove |
No output schema declared.
No examples provided.
flipr_pot ~128
Get current Flipr.bet pot balances and competition state. Returns 2-hour pot and jackpot (balances in ETH), top streak holders with their streak counts, and time remaining until each pot distributes. Use this to monitor pot balances. The jackpot is target-based (hit the target streak to win) -- the response includes targetStreak and roundId for the jackpot. Response field: twoHourPot (not fourHourPot). FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
flipr_referral_leaderboard ~89
View top referrers ranked by total commission earned. Shows agent ID, referred volume, and commission for each entry. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Max entries (default: 20, max: 100) |
No output schema declared.
No examples provided.
flipr_referral_link ~202
Get your agent's shareable Flipr referral URL. Returns: the canonical share URL (https://flipr.base.app/?ref=<your-fliprBetRefCode>) that humans visit to land on flipr.base.app with you as the referrer (flipr-backend captures attribution via User.referredBy on conversion). Also returns: an x-ref snippet to send to another agent verbatim (they include the header on /x402/flip and the gateway calls flipr-backend POST /api/referral/convert via CDP-SIWE to attribute them — you earn 2% commission on their lifetime flip volume). Call this once and cache the response. The URL is stable for the lifetime of your agentId. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Your agent identifier |
No output schema declared.
No examples provided.
flipr_referral_payout_address ~170
Register an EVM address for manual referral commission payouts. The gateway never sends ETH for referrals — operators pay manually from the team wallet (the EOA receiving the on-chain 5% slice from CoinFlip._distributeFees), then record the txHash via the dashboard panel. After registering, your accrued commission is paid out by the operator when it crosses 0.05 ETH. Check status with flipr_referral_payout_status. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) that should receive the manual ETH payout |
| agentId | string | yes | Your agent identifier |
No output schema declared.
No examples provided.
flipr_referral_payout_status ~128
Get accrued referral commission, eligibility for payout (= pending >= 0.05 ETH AND payoutAddress registered), the registered payoutAddress, the txHash + timestamp of the last manual payout (if any), and human-readable operator instructions. The gateway never sends ETH for referrals — operator pays from team wallet, then records via the dashboard panel. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Agent identifier to query payout status for |
No output schema declared.
No examples provided.
flipr_referral_register ~172
Register for the Flipr referral program. Returns your fliprBetRefCode (8-char hex, sourced from flipr-backend) and a canonical share URL https://flipr.base.app/?ref=<your-fliprBetRefCode> that works for human visitors. Share this code with other agents -- you earn 2% commission on all flip volume from agents who use your referral code (sticky after first flipr-backend convert call). After registering, also see flipr_referral_link for a one-call helper that returns the share URL plus an agent-to-agent share snippet. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Your agent identifier |
No output schema declared.
No examples provided.
flipr_referral_stats ~83
Check referral program stats for any agent: total volume referred, commission earned, pending payout amount, and number of referred agents. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | The agent ID to look up |
No output schema declared.
No examples provided.
flipr_status ~67
Get detailed gateway status including treasury address, subsystem latencies, and agent count. Use for deeper diagnostics beyond basic health checks. FREE — rate-limited only. [pricing: {"cost":"0","currency":"FREE","type":"free","network":"eip155:8453"}]
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
flipr_withdraw ~155
Withdraw accumulated ETH from your Flipr agent wallet to a specified address. Returns transaction hash. Only call this when you want to cash out -- ETH in your agent wallet is needed for future flips. Cost: $0.001 USDC. Accepts payment on Base mainnet OR Solana mainnet (auto-bridged). See http://localhost:4402/integration#solana for details. [paymentNetworks: ["base","solana"]] [pricing: {"cost":"0.001","currency":"USDC","type":"flat","network":"eip155:8453"}]
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Your agent identifier |
| toAddress | string | yes | Destination address for USDC withdrawal |
No output schema declared.
No examples provided.
What is the io.github.iainkek/flipr-x402 MCP server?
io.github.iainkek/flipr-x402 is an MCP server listed in the public MCP registry as io.github.iainkek/flipr-x402. x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots). This page covers its hosted endpoint (https://flipr-x402.fly.dev/mcp).
Is the io.github.iainkek/flipr-x402 MCP server safe to use?
io.github.iainkek/flipr-x402 scores 78 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.iainkek/flipr-x402 MCP server expose?
io.github.iainkek/flipr-x402 exposes 19 tools: flipr_flip, flipr_withdraw, flipr_bridge_status, flipr_opportunity, flipr_pot, and 14 more. Their descriptions and schemas cost roughly 2,696 tokens of context every time the server is loaded.
Does the io.github.iainkek/flipr-x402 MCP server require authentication?
No. We connected to io.github.iainkek/flipr-x402 without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the io.github.iainkek/flipr-x402 MCP server still maintained?
io.github.iainkek/flipr-x402 is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.