Saylor Innovations: pay-per-call data

271 x402 agent APIs: research, law, medicine, science, finance, public data, security and crypto.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    271 x402 agent APIs: research, law, medicine, science, finance, public data, security and crypto.

    How to connect

    How to connect Saylor Innovations: pay-per-call data to Claude

    The server address to paste into Claude settings:

    https://saylorinnovations.com/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Saylor Innovations: pay-per-call data to ChatGPT

    The server address to paste into ChatGPT settings:

    https://saylorinnovations.com/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Saylor Innovations: pay-per-call data to Cursor

    The server address to paste into Cursor settings:

    https://saylorinnovations.com/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (40)

    Raw names from tools/list. Only developers need these.

    base_token_risk_changesBase token change report: compares signed, seven-day baselines with block-pinned owner, pause, proxy and supply reads, plus optional same-pool token balances. Returns field-level evidence and unknowns. No honeypot simulation, sell-tax estimate, USD liquidity valuation or safety guarantee. USDC on Base. Costs $0.02. Returns POST instructions, not a paid result.
    get_doi_reportResolve a DOI into normalized publication metadata, citation text, identifiers and source links. Abstracts and full paper text are excluded. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_package_reportInspect the latest npm package release: version, license, dependency counts, engine requirements, deprecation notice and source links. Does not download or execute package code. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_papers_reportFind up to five publications with DOI identifiers, authors, publication years and citation counts. Returns metadata, not abstracts or full text. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_npmsearch_reportFind up to five npm packages with versions, descriptions, registry ranking scores and source links for package discovery. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_python_reportInspect a Python package’s latest release, Python compatibility, declared dependencies, license metadata and PyPI-reported advisories. No code execution. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_cve_reportResolve a CVE into its published description, status, CVSS metrics, weakness identifiers and vendor/reference links. This does not scan a system or prove safety. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_fx_reportGet daily reference exchange rates per one unit of a base currency, with observation date and currency codes. Not executable trading quotes. ECB source data is also available free from ecb.europa.eu. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_country_reportResolve a two-letter country code into its World Bank name, region, capital, income group and lending classification for data enrichment. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    get_economy_reportGet up to five recent annual observations for population, GDP in current US dollars and consumer-price inflation. Includes years, units, source links and missing values. Costs $0.003. Returns payment instructions for the Saylor endpoint; no provider account required.
    verify_repositoryClone a public GitHub repository into a disposable Firecracker microVM, install dependencies, run one declared test, lint, or build script, and return structured logs plus the resolved commit. The service verifies execution, not semantic correctness; private repositories and arbitrary shell commands are not accepted. Costs $0.25 per attempt. Returns the paid HTTP endpoint and x402 instructions.
    search_endpointsSearch the full Saylor catalog of pay-per-call data endpoints (x402, no account or API key). Solana token rug risk and holder concentration, token prices on 25 chains, ERC-20 balances, academic papers, U.S. case law/statutes/regulations, medical and HCPCS codes, drug facts, protein function (UniProt), AlphaFold and PDB structures, ClinVar variant significance, Reactome pathways, rare diseases (Orphanet), CVE/exploit intel, Polymarket/Kalshi odds, perp funding rates, stocks and SEC data, web page to markdown, sanctions screening, dictionary, chemistry, books, Bible/Quran, live aircraft, museum art, crypto token/wallet/DeFi data and more. Free. Returns url, example call, a free sample response URL, price and description; then call get_endpoint for payment details.
    get_endpointGiven an endpoint URL from search_endpoints (with its parameters filled in), returns the exact resource URL, price and x402 payment instructions. The agent then pays over HTTP and receives the data. Free.
    get_funding_ratesCurrent perpetual-futures funding rates across Hyperliquid, Binance and Bybit observations, with venue intervals, annualized comparisons, open interest filters, spread/arbitrage signals, source provenance and explicit execution-risk warnings. Costs $0.002; returns payment instructions for the live x402 endpoint.
    geocode_addressResolve a street address, place name or landmark to ranked coordinates using OpenStreetMap Nominatim. Returns display names, country/region/type, retrieval time, attribution and scope limitations. Costs $0.002; results are not legal boundaries, navigation routes or survey-grade coordinates.
    get_snowpackFind nearby USDA NRCS SNOTEL stations and return snow-water equivalent, snow depth, water-year precipitation, temperature, distance, daily observation date and percent-of-median context. Costs $0.002; coverage is mountainous western U.S. and Alaska.
    find_superfund_sitesFind U.S. EPA National Priorities List sites near coordinates or a place, including identifiers, cleanup status, hazard-ranking score, dates, distance and source profiles. Costs $0.002; distances use site reference points and are not a property-safety determination.
    get_radon_potentialLook up area-level geologic radon potential, index, province, geology and EPA screening guidance for a U.S. location. Costs $0.002; this is not a building measurement—any home can have high radon and should be tested.
    get_sdg_indicatorsReturn latest reported headline UN SDG indicators for a country, with indicator series, values, years, units, earliest comparison values, source provenance and disclosure that reporting years vary by indicator. Costs $0.003.
    get_evm_wallet_snapshotRead a Base, Ethereum, Arbitrum, Optimism, Polygon or BNB Chain wallet at the live chain head. Returns native balance, requested ERC-20 balances, token metadata and the block number used; this is a point-in-time read, not custody, valuation, proof of reserves or transaction authorization. Costs $0.003.
    get_stock_quoteLook up a stock, ETF or index quote with price, change, day and 52-week range, volume, exchange and market timestamp. Yahoo Finance with Nasdaq fallback; exchange delays can apply and unknown symbols are returned as free 404s. Costs $0.002.
    get_page_metadataExtract title, description, Open Graph image/site name, author, publication date, canonical URL and language from a public HTTP(S) page. SSRF-guarded and does not return the full body. Costs $0.001.
    enrich_company_by_domainResolve a public company domain into page metadata and candidate GLEIF legal entities with LEI, status and explicit heuristic verification caveats. Results are leads for due diligence, not proof of ownership or authorization. Costs $0.003.
    search_eu_tendersSearch current notices in TED, the EU official procurement database, returning buyer, title, description, CPV codes, publication date, deadline and source link. Useful for sales-lead and market-intelligence agents; source coverage and filing language vary. Costs $0.003.
    extract_webpage_markdownFetch a public URL and extract the main content as clean Markdown with title, author, publication date, canonical URL, links and source metadata. SSRF-guarded, bounded and designed for agent research; private addresses, non-HTML files and error pages are refused before payment. Costs $0.005.
    list_data_endpointsEvery currently buyable endpoint in the live x402 manifest, with its current description, price, supported payment networks and payment-discovery links. Free — call this first to see the complete catalog.
    check_token_securitySolana token rug risk check — is this token safe to buy? Mint and freeze authority, LP locked %, top-10 holder concentration, RugCheck named risks, a 0-100 security score and a plain-English summary. Free sample: https://saylorinnovations.com/api/sample/security. Costs $0.01. Returns the payment requirements and the URL to call once paid — an LLM cannot produce this from training data.
    check_token_priceFast price and liquidity for a Solana token from two independent sources, with the spread between them reported — a wide spread is itself a signal. Costs $0.001, the cheapest endpoint here, built for polling.
    get_token_snapshotComplete Watchdog snapshot for a Solana token in one call: price, liquidity, holders, pairs, socials, security flags, and the security/liquidity/momentum/composite scores. Costs $0.005.
    check_token_narrativeWhich meme/narrative category a token fits — ai, dog, cat, political, gaming, defi, infrastructure, frog, food, or memecoin — plus its socials. Costs $0.005.
    check_token_holdersCheck holder concentration: top 20 holders by balance for a Solana token, with percent of supply and RugCheck's own insider label per wallet — deeper than the rolled-up top-10 percentage in check_token_security. Free sample: https://saylorinnovations.com/api/sample/holders. Costs $0.01.
    get_price_historyOHLCV candles for a Solana token from its highest-liquidity pool — the only time-series data in this catalog; every other endpoint is a point-in-time snapshot. Costs $0.01.
    compare_tokensWatchdog scores for 2-10 Solana tokens side by side in one request. Priced per mint at $0.0015 — cheaper per mint than get_token_snapshot since the payload is lighter. Good for screening a watchlist in one call instead of one call per token.
    get_trending_poolsCurrently trending Solana pools with price, liquidity, volume and 24h change. Costs $0.01.
    get_recent_launchesBrand-new Solana pools, typically seconds to minutes old — the most perishable data here. Age, liquidity, buy/sell flow and conservative risk flags. Costs $0.005.
    check_walletOn-chain profile for a Solana wallet: SOL balance, token positions, recent activity, sampled age, failed-transaction rate and behavioural flags. Costs $0.01.
    search_guidesSearch Saylor Innovations technical guides (crypto safety, DNS/domains, Linux, IoT/hardware, mining, web scraping, content growth). Free — no payment. Returns metadata only, never bodies.
    get_guideFetch a guide by id. Free guides return the full body immediately. Paid guides cost $0.01 in USDC/USDT/SOL on Solana or USDC on Base, Polygon or Arbitrum, via x402 — this returns the payment requirements rather than the body. Use the returned url with a PAYMENT-SIGNATURE header to complete payment.
    list_bot_rentalsTrading bots available to rent for a fixed period, with prices and durations. The renter runs the bot themselves with their own exchange key or wallet — nothing is hosted and no credentials are sent to this server. Free to call. Note: no performance or profitability data exists for these bots, so none can be reported; automated trading risks total loss of the funded amount.
    list_categoriesEvery category and tag in the catalog, with counts. Free. One call reveals the whole shape.