Abstraxn Agent Layer

Abstraxn: public Web3 MCP server for read-only chain data and pay-per-call relays.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Abstraxn: public Web3 MCP server for read-only chain data and pay-per-call relays.

    How to connect

    How to connect Abstraxn Agent Layer to Claude

    The server address to paste into Claude settings:

    https://mcp.abstraxn.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 Abstraxn Agent Layer to ChatGPT

    The server address to paste into ChatGPT settings:

    https://mcp.abstraxn.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 Abstraxn Agent Layer to Cursor

    The server address to paste into Cursor settings:

    https://mcp.abstraxn.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 (12)

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

    network.blocknumberRead the current chain head — EVM block number or Solana slot — for a supported network. Free, read-only, no wallet needed. Use this to confirm a network is progressing before submitting a transaction, correlate off-chain events with on-chain height, or choose a safe starting point when scanning logs. Pass `chain` as one of: solana, solana-devnet, ethereum, sepolia, polygon, amoy, bsc, bsc-testnet, base, base-sepolia, tempo, tempo-testnet, arbitrum-one, monad, skale-base-sepolia. Omit `chain` (or pass `all`) to query every resolvable chain in one call.
    network.transaction_statusCheck the status of a transaction. Supports both EVM (transaction hash) and Solana (signature). Free, read-only. Use this to confirm a transfer landed, debug a failed transaction, or report status to a user. Both `chain` and `transaction_hash` are required. Available chains: solana, solana-devnet, ethereum, sepolia, polygon, amoy, bsc, bsc-testnet, base, base-sepolia, tempo, tempo-testnet, arbitrum-one, monad, skale-base-sepolia.
    network.gas_infoGet the current gas price and EIP-1559 fee hints for an EVM chain. Free, read-only, no wallet needed. Use this to estimate transaction cost or explain fees to a user before they send a transaction. `chain` is required. Supported chains: ethereum, sepolia, polygon, amoy, bsc, bsc-testnet, base, base-sepolia, tempo, tempo-testnet, arbitrum-one, monad, skale-base-sepolia.
    network.token_infoRead ERC-20 token metadata — name, symbol, decimals, total supply — for a token contract on an EVM chain. Free, read-only. Pass `token` as a contract address (0x…) or symbol `USDC` / `USDC.e` on chains where a lookup is configured. This server never holds a caller wallet, so no balance is ever returned — only public token metadata. Both `chain` and `token` are required. Supported chains: ethereum, sepolia, polygon, amoy, bsc, bsc-testnet, base, base-sepolia, tempo, tempo-testnet, arbitrum-one, monad, skale-base-sepolia.
    network.token_priceGet a spot token price from a public market API (CoinGecko). Free — no payment or wallet needed. Defaults to ETH/USD.
    network.prepare_transferBuild an **unsigned** native or token transfer transaction for a supported chain, from an explicit sender you provide. Free, read-only against the chain (nonce/gas/fees are read live) — this tool never signs, broadcasts, holds a key, or enforces any allowlist/spend limit. This server never binds a caller wallet, so `from` is always required. Supported chains: solana, solana-devnet, ethereum, sepolia, polygon, amoy, bsc, bsc-testnet, base, base-sepolia, tempo, tempo-testnet, arbitrum-one, monad, skale-base-sepolia. Token (`token` field): - Solana: 'SOL' (native, default) or 'USDC'. - EVM: native symbol (default), 'USDC', 'USDC.e' where configured for the chain, or a raw 0x contract address (decimals are read live from the contract; `token_decimals` is only a fallback if that read fails). Gas: the sender pays gas in the chain's native token once they sign — this server never sponsors it. Raw calldata (EVM only): pass `data` (hex, 0x-prefixed) with `to` as the contract call target and `amount` as the native value to send (use "0" for a pure call). Privacy (`private`, EVM only): requests SKALE BITE encryption, only supported on skale-base-sepolia, where it defaults to true — pass `private: false` there for a plaintext transfer. Rejected on every other chain.
    weather.forecastWeather data from a global weather data provider — current conditions, short-range forecast, astronomy, historical, marine, and location search. Free, read-only, no wallet needed. Every action requires `q`, a location: a city name (e.g. "Paris"), "lat,lon" (e.g. "48.85,2.35"), a US/UK/Canadian postal code, or an IATA airport code. Pick one `action`: - current: current conditions for `q`. Optional `aqi` (default false) adds basic air quality data. - forecast: forecast for `q`. Optional `days` — this deployment runs on a data plan capped at 3 days, so only 1-3 is accepted; omit for the provider default. Optional `aqi`, `alerts` (default false, adds active weather alerts for the location where available). - astronomy: sunrise/sunset/moonrise/moonset/moon phase for `q` on `date` (required, YYYY-MM-DD). - search: resolve a fuzzy `q` into matching locations (name, region, country, lat/lon) — use this first if you only have an approximate place name and need to disambiguate. - history: past weather for `q` on `date` (required, YYYY-MM-DD, must be yesterday). This deployment enforces a free-tier data plan that only allows yesterday's date — any other date is rejected before a provider call is made. - marine: marine/sailing conditions for `q`. This deployment runs on a data plan limited to 1 day of data with no tide information. Results are for general informational purposes only — do not use them as the sole basis for decisions involving personal safety, aviation, marine navigation, or emergency planning.
    market.cryptoCrypto market-data lookups (CoinGecko-sourced pricing and market data), paid per call in USDC/USDm directly from the caller's own wallet via the x402 protocol — no Abstraxn account needed. Pick one `action`: - search ($0.001): fuzzy-search coins by name/symbol. Requires `q`. Call this first to resolve a coin id before using price_feed or historical_data, both of which need an id (e.g. "bitcoin"), not a ticker. - price_feed ($0.001): current price (and optionally 24h change / market cap) for one or more coins. Requires `ids` (comma-separated coin ids). Optional `currencies` (comma-separated fiat codes, default "usd"), `include_24h` (default true), `include_mcap` (default false). - market_data ($0.002): coins ranked by market cap (or another order) — use for "top N coins" / market overview questions. Optional `currency` (default "usd"), `category`, `order` (default "market_cap_desc"), `limit` (1-250, default 100), `page` (default 1). - historical_data ($0.003): historical price/market cap/volume series for one coin. Requires `id`. Optional `currency` (default "usd"), `days` (lookback window or "max", default 30), `interval` (e.g. "daily"). - trending ($0.001): currently trending coins by search interest. No extra parameters. - token_prices ($0.005): DEX-derived prices for up to 200 tokens in one call. Requires `tokens`, an array of `{chain, token_address}` objects. Prices above are indicative — the exact charge for a given call is always whatever the live payment challenge specifies for that request. The first call (no `paymentPayload`) returns `paymentRequired`; retry with the same arguments plus `paymentPayload` to complete payment and get the real result.
    web3.lookupMulti-chain wallet, token, ENS, and transaction-simulation lookups, paid per call in USDC/USDm directly from the caller's own wallet via the x402 protocol — no Abstraxn account needed. Pick one `action`: - wallet_balances ($0.005): token balances for a wallet across 20+ chains. Requires `chain` and `address`. - wallet_transactions ($0.005): transaction history with asset transfers for a wallet. Requires `address`. Optional `chain`, `limit`. - wallet_pnl ($0.01): realized and unrealized profit/loss per token for a wallet. Requires `chain` and `address`. - token_metadata ($0.002): name/symbol/decimals for a token contract. Requires `chain` and `address`. - ens_resolve ($0.001): resolve an ENS name to an Ethereum address. Requires `name`. - ens_reverse ($0.001): resolve an Ethereum address to its ENS name. Requires `address`. - tx_simulate ($0.01): simulate an EVM transaction before sending — gas estimate, execution trace, revert reason. Requires `network_id`, `from`, `to`. Optional `value`, `data`, `gas`. Prices above are indicative — the exact charge for a given call is always whatever the live payment challenge specifies for that request. The first call (no `paymentPayload`) returns `paymentRequired`; retry with the same arguments plus `paymentPayload` to complete payment and get the real result.
    travel.searchFlight and hotel search, paid per call in USDC/USDm directly from the caller's own wallet via the x402 protocol — no Abstraxn account needed. Pick one `action`: - flight_search ($0.02): live flight fares via Google Flights. Requires `origin`, `destination`, `departureDate`. Optional `returnDate`, `adults`, `children`, `travelClass`, `stops`, `maxPrice`, `currency`. - hotel_search ($0.02): live hotel prices/ratings via Google Hotels. Requires `q` (city or hotel name), `checkInDate`, `checkOutDate`. Optional `adults`, `children`, `sortBy`, `minPrice`, `maxPrice`, `hotelClass`, `currency`. Prices above are indicative — the exact charge for a given call is always whatever the live payment challenge specifies for that request. The first call (no `paymentPayload`) returns `paymentRequired`; retry with the same arguments plus `paymentPayload` to complete payment and get the real result.
    places.lookupPlaces, solar, and aerial-view lookups, paid per call directly from the caller's own wallet via the x402 protocol — no Abstraxn account needed. Pick one `action`: - text_search_full ($0.08): full-detail place text search. Requires `textQuery`. Optional `maxResultCount` (1-5, default 5), `excludeFields` (default ["photos"]), `pageToken`, `locationBias` ({circle:{center:{latitude,longitude},radius}}), `includedType`, `languageCode` (default "en"), `openNow`, `minRating` (0-5), `priceLevels`. - text_search_partial ($0.02): same as text_search_full but returns fewer fields per place — cheaper for quick lookups. Same parameters. - nearby_search_full ($0.08): full-detail search for places within a radius. Requires `locationRestriction` ({circle:{center:{latitude,longitude},radius (0-50000)}}) — do NOT send a bare top-level latitude/longitude/radius. Optional `includedTypes`/`excludedTypes` (max 50 each), `maxResultCount` (1-5, default 5), `excludeFields` (default ["photos"]), `languageCode` (default "en"), `rankPreference` (POPULARITY default, or DISTANCE). - nearby_search_partial ($0.02): same as nearby_search_full, fewer fields, cheaper. Same parameters. - place_details_full ($0.05): full details for one place. Requires `placeId` — the exact place id returned by an earlier text_search/nearby_search result; do not invent or guess it. Optional `excludeFields` (default ["photos"]), `languageCode` (default "en"). - place_details_partial ($0.02): same as place_details_full, fewer fields, cheaper. Same parameters. - solar_building_insights ($0.02): rooftop solar potential for one location. Requires `latitude` (-90..90) and `longitude` (-180..180). Optional `requiredQuality` (LOW/MEDIUM/HIGH, default HIGH). - solar_data_layers ($0.08): raw solar data layers for an area. Requires `latitude`, `longitude`. Optional `radiusMeters` (0.1-175, default 50), `view` (default "FULL_LAYERS"), `requiredQuality` (default HIGH), `pixelSizeMeters` (default 0.25, documented as one of 0.1/0.25
    social.profile_lookupResolve person / social-profile identity for a batch of records, paid per call directly from the caller's own wallet via the x402 protocol — no Abstraxn account needed. Supports two modes per record: - Fuzzy match: supply `first_name` and/or `last_name` plus `emails` and/or `phones`. - Reverse lookup: supply only `emails` and/or `phones`, no name required. Every record needs a caller-chosen `record_id` (any string) to correlate it with its match in the response, plus at least one non-empty first_name/last_name, or at least one non-empty entry in emails, or at least one non-empty entry in phones — an empty array counts as not provided. Optional top-level `match_condition_fields` (e.g. `["linkedin_url"]`) restricts results to matches that include ALL of the named fields. The exact response shape (field names/nesting per match) is passed through unchanged from the upstream provider — read whatever comes back rather than assuming a fixed shape. Charges ~$0.02 per call — the exact charge for a given call is always whatever the live payment challenge specifies for that request. The first call (no `paymentPayload`) returns `paymentRequired`; retry with the same arguments plus `paymentPayload` to complete payment and get the real result.