Prism MCP server

• Registry namecom.zeamprism/prism-mcpverified in the MCP registry

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

• Stateanswerschecked 2026-10-26
• Tools17
• Server calls itselfprism-mcp
• Server version1.4.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 206 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 1 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: 1 so far
• Answeredmeasuring1 of the 7 daily checks it takes to print a share
• Median first answer568 ms
• Space in an agent's context≈ 6,242 tokensthe definitions of all its tools (17), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results17 of 17 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 →

• buy_time

  Buys line time by the millisecond, $0.000001 each; buying again adds time. Returns your channelId, the time bought and the time left. Then open a line with the line tool. Time you do not burn comes back on refund. Not idempotent: each…

• line

  Opens a line: calls on it spend bought time and carry no payment. op: open {channelId} takes the channelId buy_time returned and answers {nonce, sign}; sign the text in sign with the payer key (EIP-191, personal_sign); prove {channelId…

• get_payment_terms

  Returns what ZEAM :: Prism costs and the three ways to pay: a pass, ZEAM :: Pass with your own wallet, or your own x402 client, or an MPP client where the 402 carries a Payment challenge. With them: the x402 quote, the price of each tool…

• get_operator

  Returns who runs ZEAM :: Prism, our operating theory, how we work, and how to check each claim. Free, no arguments. Example: {}

• attest_server

  Returns the whole report on one MCP endpoint in one answer, read section by section: handshake and contract, then the payment surface, then discovery. A section that could not be read is named in failed with the reason and is not in…

• attest_contract

  Returns the handshake and contract of one MCP endpoint: initialize (protocol, server, capabilities, latency), what a plain GET returns, and tools/list rendered to a canonical snapshot with a stable hash, its context footprint in bytes and…

• attest_payment

  Returns how one MCP endpoint refuses an unpaid call. Calls a tool with no payment, first with the caller's arguments or {}, then, when that is refused for its arguments, with the example the server publishes or arguments built from the…

• attest_discovery

  Returns the plain-document surface of one MCP host: which standard discovery paths answer (well-known mcp, agent card, x402, ai-catalog, owners, llms.txt, openapi, server.json, robots, sitemap), and an openapi audit: operations with no…

• attest_drift

  Returns every change between two contract snapshots, classed as breaking, compatible or cosmetic, with the rule that decided each. Pass a prior attest_contract answer as `before` and either a later one as `after` or a `url` to fetch…

• audit_payers

  Who is really buying from an x402 seller on Base: each payer that opened a payment channel with the seller's escrow, and how many channels each opened. It counts the payers, not the relayers that submit their transactions. A call without…

• audit_funders

  Where a wallet's USDC on Base came from: every address that sent it USDC, with amounts, transfer counts and block ranges. A sender that is a contract (an escrow refund, a router, a bridge) is marked as a return path, not a funder: it is…

• audit_cluster

  Whether a set of wallets on Base is one actor: who funded each with USDC, grouped by shared funder, with a verdict and the wallets it could not resolve. Turns "55 distinct payers" into "one actor with 55 wallets", or fails to. A shared…

• notes_sign

  Returns the data to sign so a note posts under your wallet's name. Free. Sign the typed_data it returns with eth_signTypedData_v4, then pass the same body, your address, your signature and the returned salt to notes_post. Skip it to post…

• notes_post

  Writes a note on an immutable notepad and returns its Base transaction. Free; we pay the gas. Each note is an event on a Base contract that nobody can edit or delete, us included. To post under your wallet's name, sign it first with…

• notes_read

  Returns the notes on the notepad, newest first. Nothing is filtered or removed: a note anyone sends again word for word is listed again, with replay_of naming the first. Each note carries its Base transaction, and a signed note carries…

• call_rpc

  Calls a JSON-RPC method on an Ethereum or Base node we run and returns the node's own answer, unchanged. Base serves eth_, net_, web3_, txpool_, debug_ and base_ methods; Ethereum serves eth_, net_, web3_, txpool_, debug_ and trace_…

• sample_rpc

  Calls one read-only method on the nodes call_rpc uses and returns the node's own answer with how to check it against another source. Free, to check the nodes before you pay. No wallet. Eight read-only methods: eth_chainId…