Sablebolt MCP server

• Registry nameio.sablebolt/swapsverified in the MCP registry

The registry name sits under sablebolt.io. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-11-03
• Tools8
• Server calls itselfsablebolt
• Server version1.1.0
• Protocol version2025-06-18

On 2026-11-03 the server answered initialize and tools/list without a sign-in. First answer in 98 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer149 ms
• Space in an agent's context≈ 1,031 tokensthe definitions of all its tools (8), which an agent carries on every turn
• Tool definitionsA · 94 of 100
• Typed results0 of 8 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 3 of 8

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• list_assets

  Every asset the swap form knows, with slug, ticker, network, confirmations, extra-id name and whether it is available right now.

• list_routes

  Every route with its own page (from/to slugs) and whether both sides are available right now.

• get_limits

  Minimum and maximum amount for a route, in the asset you send.

• get_quote

  Floating estimate for a route and amount: amountTo, networkFee (taken out of the payout), receiveAmount, rate. The final amount is set when the deposit confirms.

• validate_address

  Whether an address has the right format for an asset. Does not check who owns it or whether an exchange needs a memo.

• get_swap_status

  Status of one swap by id: stage (1 waiting … 5 done), deposit and payout addresses, amounts, both transaction hashes.

• create_swap

  Creates the swap and returns the payment instruction: the one-time deposit address, the memo if the chain needs one, the exact amount in decimal and in base units with the decimals and token contract as listed by the liquidity partner, a…

• swap_page_link

  The page where the person completes the swap, with the amount prefilled. A swap for a person is completed by that person on the page: open the link, check the amount, both addresses and the memo on screen, then send the deposit from your…