47620 Multichain Data API

List buyable products (free discovery endpoint).

Buy the Solana + Agentic-Commerce dataset (14 USDC) via x402.

List all pay-per-call endpoints (free)

BUNDLE: health + slot + epoch + SOL/USD + top trending pairs, one call

Pre-payment risk check: account type, balance, activity, 0-100 score + verdict

BUNDLE: token price + liquidity + volume + DEX pairs + supply + mint authority

Solana network health (slot, epoch, SOL/USD)

Live Solana token market data by mint

Solana account SOL + SPL token balances

Solana transaction lookup (status, slot, fee)

Trending Solana DEX pairs by 24h volume

Account summary: balances + age + recent activity

Batch SOL+SPL balances for many addresses

Recent transaction signatures for an address

First-seen age of an account

Full wallet portfolio valued in USD

Token supply data (total, circulating, decimals)

Token price only (spot)

Token DEX liquidity

All DEX pairs for a token

Top token holders

Token safety: honeypot / freeze / mint authority signals

Newly created DEX pairs

Current slot

Epoch info + progress

SOL supply

Cluster performance samples

Vote accounts

Recent fee stats

Transaction status only

Transaction fees breakdown

Decoded token/native transfers in a tx

Block details by slot

Pay / review / do-not-pay decision before sending funds

Is this address ready to operate as an agent wallet?

Price/volume momentum signals for a token

Whale concentration / large holder activity

Agent decision report for a wallet/address

Complete wallet snapshot in one call

Market overview in one call

Full token due-diligence in one call

Agent starter bundle (orientation)

Live base network health: chain id, latest block number, gas price and native token ETH/USD price. Cheapest call.

Header + summary for a base block by number (or "latest"): hash, timestamp, tx count, gas used and base fee.

Native ETH balance (and live USD value) for any base address.

USDC/USDT/DAI balances for a base address (one call, all canonical stablecoins).

Live price, liquidity, 24h volume and DEX pairs for any base ERC-20 token, plus on-chain name/symbol/decimals. Live, per request.

Status (success/reverted), block, gas used/price, from/to and value for a base transaction hash. Live.

Whether a base address is a contract, its bytecode size, and (for ERC-20s) name/symbol/decimals.

Current base gas price (gwei + wei) and the estimated cost of a 21k native transfer.

Trending base DEX pairs by 24h volume (top boosted tokens on DexScreener).

Before your agent sends ETH/USDC to any base address: check whether it is safe. Returns contract-vs-wallet, native balance, USDC balance, nonce/activity, and a 0-100 risk score with reasons. Use this to avoid paying a dead or wrong address.

A pay / review / do-not-pay verdict before sending funds on base: contract-vs-wallet, funding, USDC balance, activity and risk, phrased as a decision an agent can act on. Optional ?amount=<usd> context.

One call for the whole base picture: chain id, latest block, gas price, native token ETH/USD price and the canonical USDC address. Replaces several separate calls.

Daily dashboard for a base agent: native ETH/USD price, gas price, latest block and the current top boosted tokens on DexScreener. One call.

0-100 safety score with reasons for a base ERC-20: does the address have code, name/symbol/decimals, total supply, proxy signal, DEX liquidity and volume. A pre-trade due-diligence verdict.

Everything about a base ERC-20 in one call: on-chain metadata (name/symbol/decimals/totalSupply), price, liquidity, 24h volume, DEX pair count and fdv/marketCap when available.

Complete token due-diligence for a base ERC-20 in one call: metadata, safety score, liquidity, volume and an agent-readable summary. Replaces several separate lookups.

Concentration / activity radar for a base ERC-20. ERC-20 holder lists are NOT available from a keyless RPC, so this reports DEX liquidity, 24h volume and trade counts as an activity proxy and states holdersSource honestly. Never fabricates holder numbers.

Complete wallet snapshot in one call: native ETH balance (wei + human) + USD, USDC balance, nonce/activity and whether the address is a contract.

Live polygon network health: chain id, latest block number, gas price and native token POL/USD price. Cheapest call.

Header + summary for a polygon block by number (or "latest"): hash, timestamp, tx count, gas used and base fee.

Native POL balance (and live USD value) for any polygon address.

USDC/USDT/DAI balances for a polygon address (one call, all canonical stablecoins).

Live price, liquidity, 24h volume and DEX pairs for any polygon ERC-20 token, plus on-chain name/symbol/decimals. Live, per request.

Status (success/reverted), block, gas used/price, from/to and value for a polygon transaction hash. Live.

Whether a polygon address is a contract, its bytecode size, and (for ERC-20s) name/symbol/decimals.

Current polygon gas price (gwei + wei) and the estimated cost of a 21k native transfer.

Trending polygon DEX pairs by 24h volume (top boosted tokens on DexScreener).

Before your agent sends POL/USDC to any polygon address: check whether it is safe. Returns contract-vs-wallet, native balance, USDC balance, nonce/activity, and a 0-100 risk score with reasons. Use this to avoid paying a dead or wrong address.

A pay / review / do-not-pay verdict before sending funds on polygon: contract-vs-wallet, funding, USDC balance, activity and risk, phrased as a decision an agent can act on. Optional ?amount=<usd> context.

One call for the whole polygon picture: chain id, latest block, gas price, native token POL/USD price and the canonical USDC address. Replaces several separate calls.

Daily dashboard for a polygon agent: native POL/USD price, gas price, latest block and the current top boosted tokens on DexScreener. One call.

0-100 safety score with reasons for a polygon ERC-20: does the address have code, name/symbol/decimals, total supply, proxy signal, DEX liquidity and volume. A pre-trade due-diligence verdict.

Everything about a polygon ERC-20 in one call: on-chain metadata (name/symbol/decimals/totalSupply), price, liquidity, 24h volume, DEX pair count and fdv/marketCap when available.

Complete token due-diligence for a polygon ERC-20 in one call: metadata, safety score, liquidity, volume and an agent-readable summary. Replaces several separate lookups.

Concentration / activity radar for a polygon ERC-20. ERC-20 holder lists are NOT available from a keyless RPC, so this reports DEX liquidity, 24h volume and trade counts as an activity proxy and states holdersSource honestly. Never fabricates holder numbers.

Complete wallet snapshot in one call: native POL balance (wei + human) + USD, USDC balance, nonce/activity and whether the address is a contract.

Before your agent sends funds to a wallet or pays an x402 payee, get an auditable safe/review/avoid verdict built ONLY from re-verifiable on-chain evidence (existence, activity, USDC settlements, contract code). Multichain: Base, Polygon, Solana via ?chain=.

Verify a third-party x402 endpoint before your agent pays it: does it return a valid 402, what payTo/network/price does it advertise, is that payee real on-chain, and how diverse are its payers? Multichain verdict with raw evidence.

Ranked index of x402 SELLERS (agents/services that sell), scored DETERMINISTICALLY from re-verifiable facts: presence in public x402 indexes (CDP Bazaar), plus on-chain evidence for each seller's payTo (USDC received, unique payers, wallet activity). No opinion — re-run the same index crawl and chain RPCs to reproduce. Supports ?chain=base|polygon|solana|evm, ?limit=N and ?format=json|csv.

Profile of ONE x402 seller: give the host (e.g. api.onesource.io), the payTo address, or a resource URL and get its deterministic trust score with the full fact breakdown. Multichain — ?chain=base|polygon|solana.

Live spot price for a coin (btc, eth, sol, bnb, xrp, ada, doge, avax, link, matic, arb, op) in USD with 24h change, high, low and quote volume. Cheapest call.

OHLCV candle history for a coin. Query: interval (1m,5m,15m,1h,4h,1d) and limit (<=500). Returns [openTime, open, high, low, close, volume] rows — the raw input a trading agent needs.

Technical indicator snapshot for a coin: RSI(14) with overbought/oversold signal, EMA(20), EMA(50), SMA(20), SMA(50), SMA(200). Query: interval (default 1h), limit. The exact 'rsi ema' analysis agents ask for.

Everything an agent needs in one call: spot price + 24h stats, last OHLCV candle, and technical indicators (RSI/EMA/SMA) for a coin. Query: interval (default 1h).

Perpetual-futures context for a coin: last funding rate (and %), mark vs index price, next funding time, and open interest (base + USD). The signal a derivatives/trading agent checks before sizing a position.

Top-of-book for a coin: best bid/ask, mid price, absolute + bps spread, bid/ask depth and book imbalance (>0 = more bids). Query: limit (5-100, default 20). Liquidity and slippage read for an agent about to trade.

The full decision pack in ONE call: spot + 24h stats, last candle, technical indicators (RSI/EMA/SMA), perpetual funding + open interest, and order-book spread/imbalance. Everything a trading agent needs to size and time a position. Query: interval (default 1h).

Decode a JWT (JSON Web Token): returns the header, payload and the extracted claims (subject sub, issuer iss, audience aud, expiration exp with `expired` flag and seconds remaining, issued-at iat, not-before nbf, algorithm alg, key id kid). Decode-only — the signature is NOT verified, so claims are informational. Pass the token via ?token=<jwt> (query param, no length limit).

Convert any value between units: length (m/km/mi/ft/in/yd/nmi, plus Russian verst/sazhen/arshin/vershok), mass (g/kg/lb/oz/tonne, plus Russian pood/funt/zolotnik), area (m2/ft2/km2/acre/hectare) and temperature (C/F/K). Pass ?value=<n>&from=<unit>&to=<unit>. Returns the converted value and the unit category.

Generate a QR code for any text/URL and return it as an inline SVG (and a base64 data URI). Query: ?text=<content> (required), size=<px per module, default 6> and margin=<modules, default 4>. Pure CPU, no external service.

Convert between unix epoch and human time: pass ?value=<seconds|ms|ISO-string> and get back epoch (s + ms), ISO-8601 UTC, and the value in a target timezone (?tz=America/Santiago, default UTC). Units are auto-detected (10-digit = seconds, 13-digit = ms).

Compute a SHA-256 fingerprint of any string: full hex digest, colon-separated (like SSH fingerprints), a short 16-char id, and base64. Deterministic, CPU-only. Pass ?text=<content>.

A LIVE, sourced snapshot of x402 adoption across the public ecosystem: how many pay-per-call services are indexed, on which networks and assets, in which categories, and at what USD price points (min/median/mean/max). Aggregated live from 402index.io, the Coinbase CDP Bazaar and the PayAI Bazaar; every figure carries its source URL and a fetchedAt timestamp. No fabrication - down sources report null, never guessed.

Just the network and asset histogram of the live x402 ecosystem: which chains (CAIP-2 ids like eip155:8453 Base, solana:..., and 402index labels) and which payment assets (USDC contract prefixes) the indexed pay-per-call services accept, with counts. Sourced live from 402index.io + Coinbase CDP Bazaar + PayAI Bazaar (source URLs + fetchedAt included).

Independently confirms whether a Nano (XNO) block actually landed on-chain. Given a 64-hex block hash, returns confirmed (bool), subtype, account, amount (raw + XNO), height, successor, and whether a live public node reports it cemented — plus the block's confirmation data. The buyable unit is 'tell me definitively whether this specific transfer happened', chain-agnostic. Pay-per-call USDC via x402; no signup, no API key.

For a Nano (XNO) account address, returns live frontier/balance and the most recent confirmed receives, optionally answering 'did this account receive exactly amount=? (raw)'. Use when you know the recipient but not the block hash. Live public-node data; absence of a match is reported honestly as found:false.

Remote MCP server (Streamable HTTP), multichain — 34 tools over x402

MCP server (multichain: Solana, Base, Polygon)

MCP server (Base + Polygon)

MCP server (Solana)

MCP server manifest (tools, transports)

MCP discovery document

A2A agent card (multichain service)

x402 resource-server capability document

Verifiable seller-side settlement history (free) — external vs self-probe classification, re-derivable from /api/sales

MCP server trust/security check — is this MCP server safe to connect? 0-100 trust score + verdict (trusted/review/do-not-trust). Pass ?target=<mcp-url> ($0.005)

MCP server trust check (fixed path) — reachability, MCP handshake, tool inventory, risky-capability and tool-poisoning findings ($0.002)

MCP server trust check (full) — verify before connecting an agent to a third-party MCP server; 0-100 score + verdict ($0.02)

MCP server SECURITY check — pre-connection security assessment (handshake, HTTPS, tools, risky capabilities, poisoning signals) 0-100 score + verdict ($0.005)

MCP server RISK assessment — is this MCP server risky/hijacked? reachability, tool inventory, dangerous capabilities and injection signals ($0.005)

MCP tool-poisoning / prompt-injection detection — scan an MCP server's tool metadata for poisoned or hidden instructions ($0.005)

MCP server trust VERIFICATION — verify a third-party MCP server before connecting; trust score + verdict from re-checkable facts ($0.005)