Tool Directory

Centaur ships with a set of tool integrations under tools/. Deployments can enable those tools by configuring the required credentials, and overlays can add or replace tools without forking the base repo.

Inspect a deployment

The repo inventory is not the same as a live deployment. To see what an agent can use in a running sandbox, ask it to run:

call tools

To inspect a specific tool's methods and parameters:

call discover linear

The API key / credential column uses the secret names declared by each tool's [tool.centaur] config. None means the base tool declares no required tool-specific credential; optional credentials are called out separately.

Common out-of-box tools

These are broadly useful across most deployments and are good candidates to configure first:

Tool	Use	API key / credential
`linear`	Search, create, update, and comment on Linear issues, projects, cycles, teams, and labels	`LINEAR_API_KEY`
`notion`	Search and update Notion pages, databases, blocks, and comments	`NOTION_API_KEY`
`slack`	Search Slack, read threads, inspect channels/users, and send or upload messages	`SLACK_BOT_TOKEN`; optional: `SLACK_SEARCH_TOKEN`, `SLACK_ETL_TOKEN`
`gsuite`	Use Gmail, Calendar, Drive, Docs, Sheets, Slides, and Google Analytics	`GOOGLE_TOKEN_JSON`
`websearch`	Run web search and deeper research	`EXA_API_KEY`, `ANTHROPIC_API_KEY`
`company_context`	Search indexed company history across internal sources	None
`grafana`	Query dashboards, alerts, VictoriaMetrics, VictoriaLogs, and annotations	`GRAFANA_URL`, `GRAFANA_API_KEY`
`posthog`	Query product analytics, events, pageviews, breakdowns, and user agents	`POSTHOG_API_KEY`, `POSTHOG_PROJECT_ID`
`attio`	Work with CRM objects, records, lists, notes, tasks, calls, and meetings	`ATTIO_API_KEY`
`pylon`	Read and manage support issues, accounts, contacts, teams, tags, and users	`PYLON_API_KEY`

Business

Tool	Use	API key / credential
`ashby`	ATS candidates, jobs, applications, interviews, feedback, stages, and users	`ASHBY_API_KEY`
`attio`	CRM objects, records, lists, notes, tasks, calls, and meetings	`ATTIO_API_KEY`
`pylon`	Support issues, accounts, contacts, teams, tags, and users	`PYLON_API_KEY`

Communications

Tool	Use	API key / credential
`telegram`	Telegram bot messages, chats, webhooks, and forwarding	`TELEGRAM_BOT_TOKEN`
`twitter`	X/Twitter users, timelines, followers, tweets, articles, and search	`SYNOPTIC_API_KEY`

Infrastructure and Observability

Tool	Use	API key / credential
`chart`	Render charts as PNG images for Slack or reports	None
`demo`	Test tool hot-reload and basic tool plumbing	None
`grafana`	Grafana dashboards, alerts, VictoriaMetrics, VictoriaLogs, and annotations	`GRAFANA_URL`, `GRAFANA_API_KEY`
`posthog`	Product analytics through HogQL, events, pageviews, and breakdowns	`POSTHOG_API_KEY`, `POSTHOG_PROJECT_ID`
`profslice`	Extract Firefox Profiler data for analysis	None
`reth`	Reth execution timing and performance metrics	None
`reth-log-analyzer`	Parse Reth logs and generate performance graphs	None
`vlogs`	VictoriaLogs queries, fields, streams, and log analytics	None
`vmetrics`	VictoriaMetrics PromQL/MetricsQL queries and metric discovery	None

Productivity

Tool	Use	API key / credential
`airtable`	Bases, schemas, tables, records, views, and URL parsing	`AIRTABLE_API_KEY`
`company_context`	Search indexed company history across internal sources	None
`composio`	Execute tools from third-party services exposed through Composio	`COMPOSIO_API_KEY`
`figma`	Extract Figma files, nodes, components, styles, and variables	`FIGMA_ACCESS_TOKEN`
`granola`	Search and read Granola notes and transcripts	`GRANOLA_API_KEY`
`gsuite`	Gmail, Calendar, Drive, Docs, Sheets, Slides, and Google Analytics	`GOOGLE_TOKEN_JSON`
`linear`	Linear issues, projects, cycles, teams, workflow states, and labels	`LINEAR_API_KEY`
`notion`	Notion pages, databases, blocks, comments, and users	`NOTION_API_KEY`
`opentable`	Search OpenTable restaurant reservations	None
`slack`	Slack messages, files, channels, threads, users, and usergroups	`SLACK_BOT_TOKEN`; optional: `SLACK_SEARCH_TOKEN`, `SLACK_ETL_TOKEN`

Research

Tool	Use	API key / credential
`archiver`	Extract and download investment documents through Reducto	`REDUCTO_API_KEY`, `BROWSER_USE_API_KEY`
`congress`	Congress.gov bills, members, committees, hearings, and votes	`DATAGOV_API_KEY`
`crunchbase`	Company, person, funding, acquisition, IPO, and search data	`CRUNCHBASE_API_KEY`
`docsend`	Download DocSend documents through browser automation	`BROWSER_USE_API_KEY`
`fedreg`	Federal Register agencies, articles, public inspection, and open comments	None
`googlenews`	Google News headlines, topics, and search	None
`harmonic`	Startup discovery, company enrichment, people search, and saved searches	`HARMONIC_API_KEY`
`invest_intake`	Normalize raw investment inputs into context packs	None
`investmemos`	Search and read indexed investment memos	None
`legistorm`	Congressional staff, offices, hearings, town halls, trips, and issue portfolios	`LEGISTORM_API_KEY`; optional: `LEGISTORM_ISSUES_ENDPOINT`
`listennotes`	Podcast and episode search and metadata	`LISTENNOTES_KEY`
`newsapi`	News headlines, article search, and source lists	`NEWSAPI_KEY`
`openfec`	Federal election candidates, committees, contributions, filings, and totals	`DATAGOV_API_KEY`
`plural`	State legislation, legislators, committees, events, and jurisdictions	`PLURAL_API_KEY`
`sensortower`	Mobile app analytics, publisher data, charts, and sales estimates	`SENSOR_TOWER_AUTH_TOKEN`
`similarweb`	Web traffic, rankings, referrals, keywords, geography, and app data	`SIMILARWEB_API_KEY`
`websearch`	Web search and deep research	`EXA_API_KEY`, `ANTHROPIC_API_KEY`
`youtube`	YouTube video, channel, transcript, and search data	`YOUTUBE_API_KEY`, `GOOGLE_API_KEY`

Media

Tool	Use	API key / credential
`nano-banana`	Google Gemini image generation and editing	`GOOGLE_API_KEY`
`transcriber`	Local-first Whisper transcription and recording helpers	None
`veo3`	Google Veo 3 video generation and extension	`GOOGLE_API_KEY`

Blockchain, Crypto, and Markets

These tools ship in the base repo because many Centaur users need onchain or market-data workflows. They are optional; deployments that do not configure their credentials will not expose useful access.

Tool	Use	API key / credential
`alchemy`	Blockchain data, token balances, transfers, prices, and transaction receipts	`ALCHEMY_API_KEY`
`allium`	Onchain analytics, SQL queries, schema search, and stablecoin analysis	`ALLIUM_API_KEY`
`arkham`	Blockchain intelligence, entities, wallets, transfers, balances, and flows	`ARKHAM_API_KEY`
`coindesk`	Crypto news	None
`coingecko`	Token prices, markets, charts, trending coins, and exchanges	`COINGECKO_API_KEY`
`coinmetrics`	Asset metrics, market data, candles, trades, exchanges, and catalogs	`COINMETRICS_API_KEY`
`databento`	Historical stock market OHLCV data	`DATABENTO_API_KEY`
`debank`	DeFi wallet balances, protocols, positions, chains, tokens, and NFTs	`DEBANK_API_KEY`
`defillama`	TVL, stablecoins, DEX volumes, bridges, fees, and protocol data	`DEFILLAMA_API_KEY`
`dune`	Dune query execution, result fetching, status checks, and cancellation	`DUNE_API_KEY`
`eodhd`	Real-time quotes and historical end-of-day prices	`EODHD_API_KEY`
`etherscan`	Ethereum balances, contracts, logs, gas, transactions, and token transfers	`ETHERSCAN_API_KEY`
`kalshi`	Prediction market events, markets, trades, and candlesticks	None
`karma`	DAO delegate reputation, activity, scores, and governance analytics	None
`messari`	Crypto asset prices, metrics, profiles, markets, news, and timeseries	`MESSARI_API_KEY`
`mpp`	Paid market-data and web-search requests through Machine Payments Protocol	None
`nansen`	Wallet labels, smart-money activity, token flows, holders, and PnL	`NANSEN_API_KEY`
`polymarket`	Prediction market events, markets, prices, books, and trades	None
`snapshot`	Offchain governance spaces, proposals, votes, and voting power	`SNAPSHOT_API_KEY`
`standard-metrics`	Portfolio company metrics, documents, notes, funds, and budgets	`STANDARD_METRICS_CLIENT_ID`, `STANDARD_METRICS_CLIENT_SECRET`
`tally`	Onchain governance organizations, governors, proposals, delegates, and votes	`TALLY_API_KEY`
`theblock`	Crypto news	None
`token-terminal`	Protocol revenue, fees, financial statements, sectors, and project metrics	`TOKEN_TERMINAL_API_KEY`
`tokenomist`	Token unlocks, vesting, emissions, allocations, and fundraising	`TOKENOMIST_API_KEY`

Persona tools

Tool	Use	API key / credential
`eng`	Engineering persona for code review, debugging, and repository work	None