# Solana Pulse: agent safety layer > Stops AI agents losing money on Solana: pre-sign checks, intent matching, token verdicts. x402 USDC. - name: io.github.Timothymycompc/solana-pulse-gateway - version: 0.6.0 - connection class: R0 (autonomous) - trust: 96/100 - quality: 75/100 (good) - owner: not claimed - descriptor: https://api.protogrid.dev/v1/servers/io.github.Timothymycompc%2Fsolana-pulse-gateway - tools: https://api.protogrid.dev/v1/servers/io.github.Timothymycompc%2Fsolana-pulse-gateway/tools **An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe. ## Connection (mcpServers) ```json { "mcpServers": { "solana-pulse-gateway": { "type": "http", "url": "https://solana-pulse-gateway-1021990235790.us-central1.run.app/mcp" } } } ``` ## Trust - hygiene: 100 - liveness: 97 - freshness: 100 - provenance: 90 - drivers: +repository +namespace-matches-repo +website +reachable +uptime-93% +updated-1d-ago - Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. ## Quality 75/100 (good) ### protocol: 75 (weight 25) - warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28 - n/a `protocol.stateless`: only applies to 2026-07-28 servers - pass `protocol.transport`: streamable HTTP - n/a `protocol.list_ttl`: only applies to 2026-07-28 servers ### authorization: n/a (weight 15) - n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth - n/a `auth.secret_in_url`: no templated URL ### tool hygiene: 100 (weight 30) - pass `tools.descriptions`: every tool has a description - pass `tools.description_length`: descriptions are concise - pass `tools.schemas`: every tool has an object input schema - pass `tools.annotations`: 15 of 15 tools declare readOnlyHint or destructiveHint - pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint - pass `tools.token_cost`: about 4,206 tokens to load every tool - pass `tools.api_dump`: tools are not a one-to-one API dump ### stability: 25 (weight 15) - warn `stability.changes`: 159 tool changes in 30 days - fail `stability.rug_pull`: 11 tools kept their name but changed most of their description in 30 days; review before trusting them ### dependencies: n/a (weight 15) - n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package - tools: 15, about 4,206 tokens to load them all - tool set hash: de22af8d4c97e26e6c0e3aef7ff57044 - tools last changed: 2026-10-20T04:45:50.371Z - badge: [![protogrid quality](https://protogrid.dev/badge/io.github.Timothymycompc/solana-pulse-gateway.svg)](https://protogrid.dev/servers/io.github.Timothymycompc/solana-pulse-gateway) - Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. ### Tool changes - 2026-10-20 `tx_matches` changed (description, inputSchema) - before: Run just before signing a transfer built from a request like "send 5 USDC to X". Confirms it moves exactly that token, amount and recipient, nothing more. Catches made-up amounts, wrong decimals and hidden steps. Compares the transaction with your request (token, exact amount, recipient, sender), flags every step that isn't the transfer, and checks dry-run balances so money moved any other way is caught. Example: "send 1 USDC to X" is {"tx": "", "expected": {"token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v", "amount": "1", "to": "X"}}. Cost: 25 free calls a day, then $0.02 USDC per call (x402). Outputs explained: GET /api/tools/tx_matches. - after: Run just before signing a transfer built from a request like "send 5 USDC to X", or a swap built for "swap 1 USDC for JUP". Confirms it moves exactly that token, amount and recipient, nothing more, or that the swap sells exactly that amount and pays the bought token back to you. Catches made-up amounts, wrong decimals, hidden steps and swaps that pay someone else. Compares the transaction with your request (token, exact amount, recipient, sender), flags every step that isn't the transfer, and checks dry-run balances so money moved any other way is caught. For a swap it reads the dry run: exactly the amount sold, the bought token reaching your wallet, and nothing else leaving it. Example: "send 1 USDC to X" is {"tx": "", "expected": {"token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v", "amount": "1", "to": "X"}}. Cost: 25 free calls a day, then $0.02 USDC per call (x402). Outputs explained: GET /api/tools/tx_matches. - 2026-10-20 `check_tx` changed (inputSchema) - 2026-10-19 `why_failed` changed (description, inputSchema) - before: Run whenever a Solana transaction or dry run fails, before retrying. Retrying without knowing why just burns fees. Turns a Solana error (hex code, log line or RPC error object) into the plain cause and the fix. Works offline, no chain call. Inputs: error: The error exactly as you got it: "custom program error: 0x1771", "InsufficientFundsForRent", or the RPC error object. program (optional): The program that failed. Needed to read custom error codes correctly. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/why_failed. - after: Run whenever a Solana transaction or dry run fails, before retrying. Retrying blind burns fees. Turns a Solana error (hex code, log line or RPC error) into the plain cause and fix. Offline, no chain call. Example: {"error": "custom program error: 0x1771", "program": "JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/why_failed. - 2026-10-19 `convert` changed (description, inputSchema) - before: Run before putting any token amount into a transaction. "5 USDC" is 5,000,000 raw units; wrong decimals send 1,000x too much or too little. Converts between normal amounts and raw units using the token's real on-chain decimals. Inputs: token: The token, or "SOL" for SOL (9 decimals). amount: The amount to convert, as a string, e.g. "5" or "0.25". to (optional): Which way to convert. "raw" turns 5 into 5000000 (for transactions). "readable" turns raw units back into a normal amount. Default "raw". network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/convert. - after: Run before putting any token amount in a transaction. "5 USDC" is 5,000,000 raw units; wrong decimals send 1,000x too much or too little. Converts between normal amounts and raw units with the token's real on-chain decimals. Example: {"token": "SOL", "amount": "0.5"} gives 500000000. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/convert. - 2026-10-19 `whats_this` changed (description, inputSchema) - before: Run when you're not sure what an address is, before sending to it or passing it to another tool. SOL sent to a token or program address can be stuck for good. Says what any address is: a normal wallet, token account, token, program, stake account and more, with the key facts for each. Inputs: address: Any Solana address. network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/whats_this. - after: Run when unsure what an address is, before sending to it or passing it on. SOL sent to a token or program address can be lost for good. Says what any address is (wallet, token account, token, program, stake account and more) with its key facts. Example: {"address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"} is the USDC token, not a wallet. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/whats_this. - 2026-10-19 `token_account` changed (description, inputSchema) - before: Run before sending a token to someone. Tokens go to the recipient's token account, not their wallet, and models can't work this address out in their heads. Works out the recipient's token account (ATA) for a wallet and token using the token's real program, checks whether it exists, and prices creating it if not. Inputs: wallet: The wallet that will own the token account (usually the recipient). token: The token's address. network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/token_account. - after: Run before sending a token. Tokens go to the recipient's token account, not their wallet, and models can't work that address out. Finds the token account (ATA) for a wallet and token with the token's real program, says if it exists, and prices creating it. Example: {"wallet": "", "token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"} finds where their USDC goes. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/token_account. - 2026-10-19 `blockhash` changed (description, inputSchema) - before: Run right before building a transaction you'll sign. Blockhashes expire after about 60-90 seconds; this tells you how long is left. Gives a fresh blockhash plus how many blocks, and roughly how many seconds, are left before it expires. Inputs: network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/blockhash. - after: Run just before building a transaction to sign. Blockhashes expire in about 60-90 seconds; this says how long is left. A fresh blockhash and how many blocks (and about how many seconds) are left before it expires. Example: {}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/blockhash. - 2026-10-19 `history` changed (description, inputSchema) - before: Run to see a wallet's recent activity, or to get a real transaction ID to look into. Never make up a transaction ID; get one here. Lists a wallet's latest transactions, newest first, with whether each worked and a plain error name for failures. Inputs: wallet: The wallet address to read the transactions of. how_many (optional): How many transactions to return. Default 10. network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/history. - after: Run to see a wallet's recent activity or get a real transaction ID. Never make one up. Lists a wallet's latest transactions, newest first, whether each worked, and a plain error name for failures. Example: {"wallet": "
", "how_many": 5}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/history. - 2026-10-19 `tokens` changed (description, inputSchema) - before: Run when you need to know which tokens a wallet holds and how much. Ranked by USD value, with unverified (often spam airdrop) tokens flagged so you don't report fake holdings. Lists a wallet's tokens (SPL Token and Token-2022) with exact amounts, whether each is verified, and its USD value where there's a price. Inputs: wallet: The wallet address to read the tokens of. how_many (optional): How many tokens, highest USD value first, to return. Default 25. include_empty (optional): Whether to include empty token accounts. Default false. network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/tokens. - after: Run to learn which tokens a wallet holds and how much. Ranked by USD value; unverified (often spam airdrop) tokens are flagged so you don't report fake holdings. Lists a wallet's tokens (SPL Token and Token-2022) with exact amounts, whether each is verified, and USD value where priced. Example: {"wallet": "
", "how_many": 10}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/tokens. - 2026-10-19 `balance` changed (description, inputSchema) - before: Run before sending SOL or paying fees, to confirm the wallet really has enough. Never trust a balance remembered from earlier in a chat. Reads a wallet's SOL balance straight from the chain. Inputs: wallet: The wallet address to read the SOL balance of. network (optional): Which Solana network to read. Default "mainnet-beta" (real money). Cost: 25 free calls a day, then $0.01 USDC per call (x402). Full field-by-field docs: GET /api/tools/balance. - after: Run before sending SOL or paying fees, to confirm the wallet has enough. Never trust a remembered balance. A wallet's SOL balance, read from the chain. Example: {"wallet": "
"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/balance. Full history: https://api.protogrid.dev/v1/servers/io.github.Timothymycompc%2Fsolana-pulse-gateway/changes ## Remotes - https://solana-pulse-gateway-1021990235790.us-central1.run.app/mcp (streamable-http, auth none, reachable true, uptime30d 0.92941177) ## Packages _none_ ## Tools (15) - `balance`: Run before sending SOL or paying fees, to confirm the wallet has enough. Never trust a remembered balance. A wallet's SOL balance, read from the chain. Example: {"wallet": "
"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/balance. - `blockhash`: Run just before building a transaction to sign. Blockhashes expire in about 60-90 seconds; this says how long is left. A fresh blockhash and how many blocks (and about how many seconds) are left before it expires. Example: {}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/blockhash. - `check_tx`: Run on every transaction before signing. Shows what each wallet gains and loses, blocks drainer tricks, and catches failures and expired blockhashes before you pay a fee. Decodes each step, dry-runs it on live mainnet, finds each wallet's SOL and token changes, and answers OK, REVIEW or BLOCK with reasons. Example: {"tx": ""}. Cost: 25 free calls a day, then $0.02 USDC per call (x402). Outputs explained: GET /api/tools/check_tx. - `convert`: Run before putting any token amount in a transaction. "5 USDC" is 5,000,000 raw units; wrong decimals send 1,000x too much or too little. Converts between normal amounts and raw units with the token's real on-chain decimals. Example: {"token": "SOL", "amount": "0.5"} gives 500000000. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/convert. - `explain_tx`: Run after a transaction lands or fails, to report what happened instead of guessing from logs. For failures it names the failing program and the fix. Reads a confirmed transaction: whether it worked, the fee, each wallet's SOL and token changes, the programs used, and why it failed. Example: {"tx_id": ""}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/explain_tx. - `fee`: Run before setting a priority fee. Gives the price in the unit Compute Budget expects (micro-lamports per compute unit) and the total in SOL, so a unit mix-up never overpays. Turns recent priority fees into three prices: cheap, normal, fast. Pass your transaction to get its compute limit and exact cost at each. Example: {} for network prices, or {"tx": ""} for your own. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/fee. - `find_token`: Run whenever a user names a token ("buy BONK"). Tickers aren't unique; copycats reuse them. Never take an address from memory. Finds the real address for a ticker or name, ranks matches by verification and liquidity, and warns when copycats share the ticker. Example: {"name": "BONK"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/find_token. - `history`: Run to see a wallet's recent activity or get a real transaction ID. Never make one up. Lists a wallet's latest transactions, newest first, whether each worked, and a plain error name for failures. Example: {"wallet": "
", "how_many": 5}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/history. - `token_account`: Run before sending a token. Tokens go to the recipient's token account, not their wallet, and models can't work that address out. Finds the token account (ATA) for a wallet and token with the token's real program, says if it exists, and prices creating it. Example: {"wallet": "", "token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"} finds where their USDC goes. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/token_account. - `tokens`: Run to learn which tokens a wallet holds and how much. Ranked by USD value; unverified (often spam airdrop) tokens are flagged so you don't report fake holdings. Lists a wallet's tokens (SPL Token and Token-2022) with exact amounts, whether each is verified, and USD value where priced. Example: {"wallet": "
", "how_many": 10}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/tokens. - `token_safety`: Run before buying, accepting or recommending a token. Answers SAFE, CAUTION or AVOID with exact reasons from chain and market data. Simulates a real holder selling, then checks if liquidity can be pulled, the creator's record, insider wallet networks, issuer powers (mint, freeze, Token-2022 traps), verification, liquidity, holders and age, for one verdict. Example: {"token": "DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263"} checks BONK. Cost: 25 free calls a day, then $0.02 USDC per call (x402). Outputs explained: GET /api/tools/token_safety. - `tx_matches`: Run just before signing a transfer built from a request like "send 5 USDC to X", or a swap built for "swap 1 USDC for JUP". Confirms it moves exactly that token, amount and recipient, nothing more, or that the swap sells exactly that amount and pays the bought token back to you. Catches made-up amounts, wrong decimals, hidden steps and swaps that pay someone else. Compares the transaction with your request (token, exact amount, recipient, sender), flags every step that isn't the transfer, and checks dry-run balances so money moved any other way is caught. For a swap it reads the dry run: exactly the amount sold, the bought token reaching your wallet, and nothing else leaving it. Example: "send 1 USDC to X" is {"tx": "", "expected": {"token": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v", "amount": "1", "to": "X"}}. Cost: 25 free calls a day, then $0.02 USDC per call (x402). Outputs explained: GET /api/tools/tx_matches. - `wallet`: Run when asked what a wallet holds or is worth. One call instead of balance + tokens + history; spam is left out of the total. SOL balance, top tokens with USD values, estimated total, and recent activity in one answer. Example: {"wallet": "
"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/wallet. - `whats_this`: Run when unsure what an address is, before sending to it or passing it on. SOL sent to a token or program address can be lost for good. Says what any address is (wallet, token account, token, program, stake account and more) with its key facts. Example: {"address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"} is the USDC token, not a wallet. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/whats_this. - `why_failed`: Run whenever a Solana transaction or dry run fails, before retrying. Retrying blind burns fees. Turns a Solana error (hex code, log line or RPC error) into the plain cause and fix. Offline, no chain call. Example: {"error": "custom program error: 0x1771", "program": "JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"}. Cost: 25 free calls a day, then $0.01 USDC per call (x402). Outputs explained: GET /api/tools/why_failed.