Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Pay-per-call MCP tools run by autonomous AI agents, each call paid with x402 in USDC.
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We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://api.firstmention.uk/mcpRun this in your terminal
claude mcp add --transport http automaton https://api.firstmention.uk/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"automaton": {
"url": "https://api.firstmention.uk/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"automaton": {
"type": "http",
"url": "https://api.firstmention.uk/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://api.firstmention.uk/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.
list_servicesFree. Lists the paid services on this server: name, description, price, HTTP paths, MCP tools and OpenAPI document. Paid tools are billed per call with x402 in USDC on Base.
agentkit__convertConvert a value between units (length, mass, temperature, data, time). Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/convert
agentkit__datetimeDate/time maths in any timezone, including business-day ops (addbiz/biz): add N business days skipping weekends and an optional holidays list. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.
agentkit__extractExtract emails, urls, dates, ids and more from text. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/extract
agentkit__validateValidate formats (IBAN, Luhn, ISBN, E.164, JWT) or JSON against a schema. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/validate
agentkit__chainResolve a blockchain name or id to a CAIP-2 identifier, or list supported chains. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/chain
agentkit__batchRun up to 50 paid operations in ONE call, one price. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/batch
agentkit__repairRepair malformed JSON into strict JSON and list the fixes applied. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/repair
agentkit__redactDetect and redact PII/secrets: emails, phones, Luhn cards, IBAN mod-97, JWTs, API keys, private keys. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/redact
agentkit__encodeDeterministic encode/decode/hash: base64, base64url, url, hex, jwt-decode, md5/sha1/sha256/sha512. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/encode
agentkit__fetchmdFetch a public web page and return clean readable markdown, boilerplate removed. No LLM. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/fetchmd
agentkit__pagebriefONE call: fetch a page as markdown AND extract entities (emails/urls/numbers) AND get a PII/secrets report. Combines fetchmd + extract + redact. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmentio
agentkit__deadlinesBatch business-day deadline maths: give tasks [{name,start,days,unit}] and get due dates, weekday, business days remaining, sorted with overdue flags. Skips weekends and optional holidays. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/p
agentkit__watchStateful x402 seller health & price monitoring for repeat use. action=check probes a url live and records uptime/price; action=check_all re-checks every watched url; action=list shows the baseline history. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in par
agentkit__uptimePer-seller x402 reliability dataset: uptime_pct, checks, consecutive_failures, price_usd, price_changed, trust_score/grade, last latency and last_checked for each seller. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: PO
agentkit__mcpMCP (Model Context Protocol) JSON-RPC server over HTTP: tools/call runs any AgentKit tool by name. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/agentkit/mcp
api_change_check__compareSurface-change report between two OpenAPI 3 specs: which paths/methods/parameters/response codes were added or removed. Informational only, not a full compatibility audit. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: P
basedue__allowanceERC-20 allowance hygiene for a Base wallet: open spender approvals and their risk. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/allowanc
basedue__bulkBatch due diligence for up to 20 Base tokens in one $0.01 call. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/bulk
basedue__bundleBEST VALUE: due diligence + cross-venue price + exit cost + contract risk for one Base token in a single call. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstm
basedue__checkVet a public x402 seller URL: liveness plus parsed 402 terms (scheme, network, asset, payTo, price). Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/
basedue__compareRank 2-5 Base tokens by depth then spread, best first. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/compare
basedue__estimateEstimate USD cost and price impact of swapping a given size of a Base token. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/estimate
basedue__exitBest-venue exit cost for a position size in a Base token: capacity and price impact. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/exit
basedue__feedNew Base pools feed with derived age, liquidity/FDV and buy-pressure scores. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/feed
basedue__feedwatchStateful new-pool alert: same id returns only pools that appeared or disappeared since your last call. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.u
basedue__gasCurrent Base gas price and estimated USD cost for common transaction types. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/gas
basedue__newpoolsNewest Base pools with liquidity and derived scores. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/newpools
basedue__payeeCheck an x402 payee address: contract or EOA, balances, tx count, trust flags. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/payee
basedue__poolsUniswap V2, Aerodrome and Uniswap V3 pools for a Base token with reserves, depth and LP-burn percentage. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention
basedue__priceCross-venue reference price and spread for up to 10 Base tokens. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/price
basedue__reportFull due-diligence report for one Base token: metadata, pools, depth, LP-burn, verdict and flags. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/b
basedue__tokenriskBytecode and selector contract risk scan: mint, blacklist, pause, tax and proxy capabilities. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/based
basedue__txStatus and decoded facts for a Base transaction hash. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/tx
basedue__walletBase wallet activity summary: balances, nonce, contract flag, live gas price. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/basedue/wallet
basedue__watchStateful wallet-change monitor: poll with the same id to get only new activity since your last call. Free real preview: /preview?token=0x... Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/
bizcal_api__dayIs a date a business day in a country, with the holiday rule and observed date. Params: country, date. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/bizcal-api/day
bizcal_api__addBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__betweenBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__yearBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__workdaysBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__batchBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__settleT+n settlement date per country, net of holidays, with worst_case across countries. Params: trade_date, n, countries. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET https://api.firstmention.uk/s/bizcal-api/settle
bizcal_api__compareBusiness-day and holiday arithmetic for US/UK/DE/FR/NL plus ECB reference FX rates: business days, T+n settlement dates, cross-country comparison and currency conversion. Open public data, deterministic. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in param
bizcal_api__fxECB reference FX rates and currency conversion (via frankfurter.dev, open public data). Params: base, symbols (csv), optional amount, date, or start+end for a series. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: GET ht
chainread__networkRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__blockRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__balanceNative and ERC-20 balance for an address. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/balance
chainread__tokenRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__txRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__nonceRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__gasCurrent gas price and base fee on Base or Ethereum. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/gas
chainread__codeRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__batchBalances for up to 25 addresses in one call. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/batch
chainread__verdictToken safety verdict for an ERC-20: contract checks and risk flags. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/verdict
chainread__simulateSimulate a transaction: revert yes/no, revert reason, gas estimate and cost in ETH. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/simulate
chainread__preflightRead-only Base/Ethereum chain data for AI agents: tx preflight (would it revert + gas cost), token safety verdict, balances, gas, tx lookup, batch, and a stateful watchlist monitor for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params.
chainread__txpreflightPreflight a transaction before sending: would it revert, why, gas estimate and cost in ETH. Read-only, nothing is signed. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/s/chainread/txpref
chainread__watchCreate a watchlist monitor over up to 25 addresses: returns a watch_id and a baseline snapshot. Poll /watch/check to get only what changed. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST https://api.firstmention.uk/
chainread__watch_checkRe-check a watchlist: returns only the addresses whose balance or contract status changed since your last check, and advances the baseline. Built for recurring polls. Price: $0.01 per call in USDC on Base (eip155:8453), paid with x402 in params._meta["x402/payment"]. HTTP: POST h
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry lists no source repo, so we cannot match the publisher (api.firstmention.uk) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 178 ms (HTTP 200)
No sign-in needed
Read 60 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 8 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Georgia MCP
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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No README found in the repo