Official MCP RegistryListed
Cleave for Agents: token swaps, cross-chain swaps and gas top-ups
Swap, bridge and get gas on 6 EVM chains. Each plan states its outcome before you sign. No API key.
First seen 26 Oct 2026. Evidence as of 4 Nov 2026.
4
Tools
From an anonymous probe
1
Source listings
Each with its own history
8
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| cleave_find_token | Finds a token by symbol or contract address on Ethereum, Arbitrum, Base, BNB Chain, Polygon or Optimism and returns its address, decimals and whether it is on Cleave's token list, with a flag when it resembles a listed token. A symbol shared by several listed tokens returns up to ten candidates by address instead of picking one. An unlisted token is found only by its address and comes back flagged, without a name or symbol. It fits before cleave_plan_swap when the user names a token by symbol and the address is unknown. | Read-only |
| cleave_get_gas | Gets native gas (ETH, BNB or POL) on Ethereum, Arbitrum, Base, BNB Chain, Polygon or Optimism for a wallet that holds USDC on Ethereum, Arbitrum, Base, Optimism or Polygon but has no gas to send transactions. Called with the paying chain, the receiving chain, the recipient, a USDC amount and the paying wallet (without it the offer has nothing to sign), it returns an offer: the fee, the minimum native amount, the deadline, the order and one USDC authorization for the wallet to sign; signing costs no gas. An offer needs 2 to 50 USDC (at least 5 USDC for gas on Ethereum) that covers the fee, a recipient that accepts the native coin and is not a token contract, and, for a cross-chain order, the paying wallet or a refundTo on the paying chain; otherwise, or while the route is paused, no offer is returned and the answer says why. Called again with the offer, the signature and the same wallet, it passes the signed order to Cleave's relayer, which executes it through a contract made for that one order, and returns a requestId for cleave_track_swap. On one chain the order swaps the USDC to the native coin for the recipient; from another chain it bridges the USDC and swaps it on arrival, delivering USDC instead if that swap fails. An authorization not used by its deadline expires and takes nothing. An order paid from another chain whose bridge transfer is not filled is usually refunded to the refund address on the paying chain within hours; until then, or if that USDC is worth less than sweeping it costs, cleave_track_swap shows it as refund_pending. When the wallet already holds some gas, cleave_plan_swap plans a swap to the native coin. | Changes data |
| cleave_plan_swap | Plans a token swap on one chain, a cross-chain swap or bridge, or a native-gas top-up on Ethereum, Arbitrum, Base, BNB Chain, Polygon or Optimism, and returns unsigned transactions for the given wallet to sign. It fits when the user wants to exchange tokens, move them between these chains, or get ETH, BNB or POL for gas. It sends nothing and moves no funds. The answer leads with blocking notices and warnings, then gives the route's outcome kind (an exact amount or one that can vary; with a swap on arrival, the token, else a named fallback; where a transfer can go unfilled, a refund of the bridged token on the source chain hours later), every third-party cost except network gas, the expected time, validUntil and the calls in signing order. A blocking notice returns no calls; a warning, or a recipient other than the wallet, sets requiresConfirmation, and the connection's settings can turn either into a refusal. Calls sent after validUntil are stale: they can revert or, on some routes, end in a refund hours later. Amounts are decimal strings in token units; tokens are listed symbols or contract addresses; the recipient defaults to the wallet. Limits set in the connection (a pinned wallet, a per-plan USD cap, listed tokens only) bound every argument. For an ambiguous symbol, cleave_find_token lists the candidates; after sending, cleave_track_swap reports progress. A wallet with no gas can get it with cleave_get_gas. | Read-only |
| cleave_track_swap | Reports the status of a swap, bridge or gas top-up that was planned with cleave_plan_swap and then sent, or ordered with cleave_get_gas: its state (for example pending, in flight, delivered, refund pending or refunded), what arrived against the plan and on which chain, and the next action or when to check again. It takes the chain and transaction hash, plus the plan's requestId when known, or for a gas top-up the requestId alone; a transaction to a contract outside Cleave's published list is reported as such. It fits when the user asks whether such a transfer arrived, and before any re-send, because re-sending a plan that is still in flight can pay twice. It reports states only and returns no transactions. | Read-only |
Change history
- cleave_get_gas: description changed (+"recipient," +"amount and the paying wallet (without it the offer has nothing to sign)," +"An offer needs 2 to 50 USDC (at least 5 USDC for gas on Ethereum) that covers the fee, a recipient that accepts the native coin and is not a token contract, and, for a cross-chain order, the paying wallet or a refundTo on the paying chain; otherwise, or while the route is paused, no offer is returned and the answer says why.")
- cleave_find_token: description changed (+"up to ten candidates" -"every candidate")
- server instructions changed (+"signature and the paying wallet," +"authorization" +"used")
- cleave_plan_swap: description changed (+"(an exact amount" +"one that can vary;" -"(exact")
- cleave_get_gas: description changed (+"order swaps the USDC to the native coin for" +"recipient;" +"bridges")
- server instructions changed (+"one that can vary;" +"it swaps the USDC to the native coin for" +"recipient;")
- server instructions changed (+"After a successful trade or gas order, agents can leave feedback on the ERC-8004 reputation registry for Cleave, agentId 1135050 on Base.")
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | fi.cleave/swap | 26 Oct 2026 | 4 Nov 2026 | 1 |