Apex Arc MCP server
Arc for agents: free USDC faucet by signature, can-I-sell checks before you buy, pools, bridges.
Little public usage data yet
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If you have run it, two minutes of your experience saves the next person an afternoon.
Apex Arc tools (8, 1 write)
write = sends, deletes, buys or postsarc_bridgesFreeHow to get USDC onto Arc (eip155:5042) from other chains, measured: a live 2 USDC quote per source chain (Ethereum, Base, Arbitrum, Optimism, Polygon, Avalanche, Solana and more) through LI.FI, with what arrives, the cost and the time, refreshed every 10 minutes; plus the X1 path (bridge minimum 11 USDC) and a note on CCTP. Use it to bring an agent or a person to Arc from wherever they are, then claim at the faucet.
arc_exit_checkFreeIf I buy this token on Arc, can I get out? For a token address or Uniswap v4 pool id on Arc: a real buy-then-sell round trip inside one eth_call through the pool hook (nothing spent) or, for ERC-20-USDC pools, both legs quoted. Returns whether the sell goes through, the round-trip cost, depth, and flags with reasons. The answer names its method. Free, one at a time (ten a minute).
arc_exit_check_bulkFreePAYWALLED. Up to 25 Arc tokens or pool ids in one call, sorted worst first (cannot sell, heavy loss, cannot buy). Returns x402 payment instructions for /api/x402/arc-exit-check-bulk ($1, USDC on Arc, USDC on Solana or XNT). Single checks are free via arc_exit_check.
arc_faucet_claimFreeClaim real USDC and APEX on Arc for an EVM address, three times a day, no gas needed: the operator pays. Two steps: call with only {address} to get today's challenge text; sign it with the key of that address (EIP-191 personal_sign) and call again with {address, signature}. Same claim for everyone; cooldown and daily total are enforced by a contract with no withdraw function. The day's claims open in three parts (00:00, 08:00, 16:00 UTC) and one connection claims at most once every 8 hours; a refusal names the time. The reply includes nextClaimAt (unix seconds) and claimNumber.
arc_faucet_statusFreeAPEX faucet on Arc (Circle USDC chain, eip155:5042): the pot, the amount per claim (USDC + APEX), claims left today and left right now (the day's claims open in three parts, at 00:00, 08:00 and 16:00 UTC; nextReleaseAt says when), cooldown. Every number is read from the faucet contract at call time; a failed read is reported as failed, never as zero. Free.
arc_growwrite actionFreePut USDC to work in the APEX/USDC pool on Arc (eip155:5042) from your own key, non-custodially: call grow(minApexOut) on the ArcGrow contract with the USDC as native value; half is swapped for APEX, both halves become a full-range Uniswap v4 position minted to the caller, leftovers refunded, nothing kept. Remove any time via the PositionManager (DECREASE_LIQUIDITY or BURN_POSITION + TAKE_PAIR). With {address} this returns that address's positions, deposit and value now; without it, the contract, ABI and steps.
arc_poolsFreeArc Sniper Watch: new Uniswap v4 pools on Arc in the last 24 h, who bought each first and how many seconds after it opened, whether the first buyer sold straight back, USDC depth, flags with reasons, and a leaderboard of the fastest first buyers. Read from PoolManager events every five minutes. Free.
arc_touchstoneFreeTouchstone on Arc: on-chain assays. An assay is a real buy-and-sell of a token in one transaction, reverted, with the verdict, round-trip cost and streak written as an event by the ArcAssay contract (0x417d200a4bd83a7e3911765114b1a27ad30f8c97). Read every pool's last assay and streak, or one token's. To make one, call assay(poolKey, 0) on the contract with value >= fee (0.03 USDC); the fee funds the faucet pot and the APEX vault.
Public scan report
scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 1167ms20/20
- Tool poisoning8 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
- Maintenanceno repository listed3/15
- Maintainer identityverified namespace with website, no repo4/10
Findings (2)
- highWrite-action tools reachable without authentication
auth.open-write - lowNo source repository listed
maint.no-repo
Install directly
claude mcp add --transport http apex-arc https://apexfaucet.xyz/api/mcp/arc
Apex Arc: common questions
- Is Apex Arc MCP server safe?
- With care: it is graded C, so read the findings first (60/100). Read the Apex Arc safety report
- How do I install Apex Arc?
- It runs remotely at apexfaucet.xyz. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Apex Arc need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Apex Arc maintained?
- The latest release is v1.0.0.
- Is Apex Arc up?
- 100% of our last 1 checks got an answer. We check remote servers about four times a day.
- What can I use instead of Apex Arc?
- Servers from other publishers that do the same job: Domain Liveness MCP server.
Alternatives to Apex Arc
Same job from other publishers: the closest match first, then the best rated.
- Domain LivenessIs this business's website still there? Checks apex and www, and DNS separately from HTTP.not reviewedEstablishedA