Free token-safety scans + paid x402 verdicts, signals, radar & EVM swap quotes for AI agents.
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PAID ($5, one payment). Mint a 30-day HostDeFi Agent-plan API key (5,000 calls, batch enabled) — the key arrives in the paid response; no account, no signup. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
base64 X-PAYMENT payload
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PAID ($5, one payment). Mint a 30-day HostDeFi Agent-plan API key (5,000 calls, batch enabled) — the key arrives in the paid response; no account, no signup. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"properties": {
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}FREE. The HostDeFi machine-payable price catalog: every paid resource, its USD price and settlement rails.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}PAID ($0.02/call). 24h odds history for one tracked Polymarket market: [ts, yesUsd, noUsd] points sampled ~1/min into a normalized series — one call, no auth juggling. An untracked market is an uncharged 404. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| marketId* | string | Polymarket market id (conditionId, from predict_markets) |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"required": [
"marketId"
],
"properties": {
"marketId": {
"type": "string",
"description": "Polymarket market id (conditionId, from predict_markets)"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.005/call). Polymarket prediction markets HostDeFi tracks (top ~100 by 24h volume): market ids, questions, latest yes/no odds and sampling stats from HostDeFi's own recorded series. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| limit | integer | |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"maximum": 500,
"minimum": 1
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.05/call). Pre-graduation on-chain signals for a Solana mint: bundled-launch detection, curve-aware holder concentration, Token-2022 traps, authority state. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| mint* | string | Solana mint address |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"required": [
"mint"
],
"properties": {
"mint": {
"type": "string",
"description": "Solana mint address"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.01/call). Recent HostDeFi trend-radar alerts: big dated movers with real market cap, structured JSON. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| limit | integer | |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}FREE. HostDeFi token-safety scan — pass any token contract address (Solana mint or EVM address), or an exact token name/ticker: structured risk read with concerning/legitimate on-chain signals (authority state, liquidity, holder concentration, contract flags). No payment, no signup — fair use 100 checks/day per IP (the same free scanner as https://hostdefi.com/scan).
| Argument | Type | Description |
|---|---|---|
| token* | string | token contract address / Solana mint, or an exact token name/ticker |
{
"type": "object",
"required": [
"token"
],
"properties": {
"token": {
"type": "string",
"description": "token contract address / Solana mint, or an exact token name/ticker"
}
},
"additionalProperties": false
}PAID ($0.002/call). EVM swap price preview: expected and minimum output for a pair/amount before committing to a firm quote — the cheap look-before-you-swap call. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| chainId* | string | EVM chain id (e.g. 8453 = Base) |
| buyToken* | string | 'native' or the 0x… address of the token being bought |
| sellToken* | string | 'native' or the 0x… address of the token being sold |
| sellAmount* | string | integer amount in the sell token's base units |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"required": [
"chainId",
"sellToken",
"buyToken",
"sellAmount"
],
"properties": {
"chainId": {
"type": "string",
"description": "EVM chain id (e.g. 8453 = Base)"
},
"buyToken": {
"type": "string",
"description": "'native' or the 0x… address of the token being bought"
},
"sellToken": {
"type": "string",
"description": "'native' or the 0x… address of the token being sold"
},
"sellAmount": {
"type": "string",
"description": "integer amount in the sell token's base units"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.01/call). Executable EVM swap: a firm KyberSwap-routed quote plus a ready-to-sign transaction for the taker's OWN wallet — non-custodial, no key, no account. A 1% platform fee in the chain's native coin is priced into the returned transaction, on top of the swap. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| ref | string | optional referrer 0x… address (splits the platform fee) |
| taker* | string | the wallet (0x…) that will sign and broadcast the returned transaction |
| chainId* | string | EVM chain id (e.g. 8453 = Base, 1 = Ethereum, 137 = Polygon, 42161 = Arbitrum, 43114 = Avalanche) |
| buyToken* | string | 'native' or the 0x… address of the token being bought |
| sellToken* | string | 'native' or the 0x… address of the token being sold |
| sellAmount* | string | integer amount in the sell token's base units |
PAID ($0.02/call). Fresh token launches with HostDeFi safety pre-reads baked in: newest token profiles annotated with authority state, bundled-launch flag, holder concentration and market depth — the clean flag is fail-closed (true only when every check is provably good). Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| chain | string | chain filter (default solana) |
| limit | integer | |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "chain filter (default solana)"
},
"limit": {
"type": "integer",
"maximum": 20,
"minimum": 1
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.35/call). HostDeFi full due-diligence report — one document: the A+–F verdict, on-chain signals (authority state, bundled-launch read, holder concentration, Token-2022 traps on Solana), the dated verdict-history series, trend-radar mentions and a rug-ledger cross-check. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| chain* | string | solana, ethereum, base, arbitrum, … |
| address* | string | token contract address / mint |
| x402_payment | string | base64 X-PAYMENT payload (omit on the first call to get payment requirements) |
{
"type": "object",
"required": [
"chain",
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "solana, ethereum, base, arbitrum, …"
},
"address": {
"type": "string",
"description": "token contract address / mint"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload (omit on the first call to get payment requirements)"
}
},
"additionalProperties": false
}PAID ($0.25/call). Deep HostDeFi report in one call: the current A+-F verdict with authority/holder signals, the FULL dated safety history for the token, and a derived trend block (grade movement, liquidity trajectory, worst drawdown, days tracked). All figures are computed from recorded rows — no projections. History depth accrues from 2026-08-16. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| chain* | string | solana, ethereum, base, arbitrum, … |
| limit | integer | history rows returned, oldest first (default 365) |
| address* | string | token contract address / mint |
| x402_payment | string | base64 X-PAYMENT payload (omit on the first call to get payment requirements) |
{
"type": "object",
"required": [
"chain",
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "solana, ethereum, base, arbitrum, …"
},
"limit": {
"type": "integer",
"maximum": 365,
"minimum": 1,
"description": "history rows returned, oldest first (default 365)"
},
"address": {
"type": "string",
"description": "token contract address / mint"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload (omit on the first call to get payment requirements)"
}
},
"additionalProperties": false
}PAID ($0.02/call). HostDeFi A+–F token safety verdict by chain + address: grade, score, verdict prose, liquidity/holders/authority signals. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| chain* | string | solana, ethereum, base, arbitrum, … |
| address* | string | token contract address / mint |
| x402_payment | string | base64 X-PAYMENT payload (omit on the first call to get payment requirements) |
{
"type": "object",
"required": [
"chain",
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "solana, ethereum, base, arbitrum, …"
},
"address": {
"type": "string",
"description": "token contract address / mint"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload (omit on the first call to get payment requirements)"
}
},
"additionalProperties": false
}PAID ($0.10/call). Wallet risk-exposure read for a Solana wallet: its largest holdings graded through the full verdict path, exposure counts by risk tier, and a rug-ledger symbol cross-check. Holdings exposure heuristics — NOT AML attribution or sanctions screening. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| wallet* | string | Solana wallet address (base58) |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"required": [
"wallet"
],
"properties": {
"wallet": {
"type": "string",
"description": "Solana wallet address (base58)"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}PAID ($0.02/call). Vet an x402 seller BEFORE paying it: A–F grade from observable signals (402-spec fidelity, price sanity, payTo presence, TLS, latency), dated crawl snapshot. Call once WITHOUT x402_payment to receive the x402 payment requirements (an `accepts` array); pay one of them with any x402 client/wallet, then call again with `x402_payment` set to the base64 X-PAYMENT payload. You are only charged when a result actually comes back.
| Argument | Type | Description |
|---|---|---|
| resource* | string | resource URL or provider origin |
| x402_payment | string | base64 X-PAYMENT payload |
{
"type": "object",
"required": [
"resource"
],
"properties": {
"resource": {
"type": "string",
"description": "resource URL or provider origin"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload"
}
},
"additionalProperties": false
}| x402_payment |
| string |
| base64 X-PAYMENT payload (omit on the first call to get payment requirements) |
{
"type": "object",
"required": [
"chainId",
"sellToken",
"buyToken",
"sellAmount",
"taker"
],
"properties": {
"ref": {
"type": "string",
"description": "optional referrer 0x… address (splits the platform fee)"
},
"taker": {
"type": "string",
"description": "the wallet (0x…) that will sign and broadcast the returned transaction"
},
"chainId": {
"type": "string",
"description": "EVM chain id (e.g. 8453 = Base, 1 = Ethereum, 137 = Polygon, 42161 = Arbitrum, 43114 = Avalanche)"
},
"buyToken": {
"type": "string",
"description": "'native' or the 0x… address of the token being bought"
},
"sellToken": {
"type": "string",
"description": "'native' or the 0x… address of the token being sold"
},
"sellAmount": {
"type": "string",
"description": "integer amount in the sell token's base units"
},
"x402_payment": {
"type": "string",
"description": "base64 X-PAYMENT payload (omit on the first call to get payment requirements)"
}
},
"additionalProperties": false
}