x402watch

52,778 paid endpoints are listed. 41,522 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-11-14 06:38 UTC · 52,778 probed

41,522 answering 4025,071 down5,452 rejecting733 no paywall944 price drift
  1. 100api.onesource.io/api/chain/receipt/:hashTransaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction$0.005 Base43 ms329 payers100% up
  2. 100api.onesource.io/api/chain/nft-metadataNFT metadata for ERC721 or ERC1155 tokens via eth_call, with IPFS, Arweave, data URI, and public HTTP(S) resolution$0.008 Base59 ms323 payers100% up
  3. 100api.onesource.io/api/chain/erc721-tokensList every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)$0.008 Base55 ms320 payers100% up
  4. 100api.onesource.io/api/chain/chain-idEthereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on$0.001 Base46 ms313 payers100% up
  5. 100api.onesource.io/api/chain/code/:addressCheck if an Ethereum address is a contract via eth_getCode - returns deployed bytecode$0.003 Base45 ms312 payers100% up
  6. 100api.onesource.io/api/chain/callSimulate a read-only Ethereum contract call via eth_call - no transaction sent$0.005 Base45 ms311 payers100% up
  7. 100api.onesource.io/api/chain/allowanceERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet$0.003 Base44 ms301 payers100% up
  8. 100api.onesource.io/deepstate/v1/analytics/makersDeepstate, the on-chain order-book exchange on Robinhood Chain. Per-maker time-at-top, notional rested, fills, and maker rewards earned for a market (token varies by market; see /deepstate/v1/markets).$0.02 Base48 ms295 payers100% up
  9. 100api.onesource.io/api/chain/estimate-gasEstimate the gas a transaction will consume via eth_estimateGas before signing it$0.004 Base46 ms292 payers100% up
  10. 100api.onesource.io/deepstate/v1/analytics/depth-historyDeepstate, the on-chain order-book exchange on Robinhood Chain. Depth heatmap - resting order size by price level over time for a market.$0.02 Base45 ms273 payers100% up
  11. 100api.onesource.io/deepstate/v1/analytics/cost-to-quoteDeepstate, the on-chain order-book exchange on Robinhood Chain. Gas spent resting and cancelling orders for a market.$0.02 Base46 ms266 payers100% up
  12. 100api.onesource.io/api/chain/nft-ownerLook up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)$0.003 Base44 ms203 payers100% up
  13. 100api.onesource.io/api/chain/erc1155-balanceERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds$0.003 Base46 ms196 payers100% up
  14. 100api.onesource.io/api/chain/storageRead a raw storage slot from any Ethereum contract via eth_getStorageAt$0.005 Base42 ms186 payers100% up
  15. 100api.onesource.io/api/chain/proxy/:addressDetect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy$0.005 Base44 ms159 payers100% up
  16. 100api.onesource.io/standard/v1/poolThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest AMM pool state: price, tick, liquidity, reserves. reserve_eth_raw and reserve_std_raw are 18-decimal token amounts; divide them by 1e18. sqrt_price_x96_raw is Q64.96, and liquidity_raw is Uniswap liquidity rather than a token amount.$0.02 Base46 ms157 payers100% up
  17. 100api.onesource.io/standard/v1/exit-pressure/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current exit-pressure gauge across the reserve. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base44 ms156 payers100% up
  18. 100api.onesource.io/standard/v1/supply/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest supply ledger: cumulative minted and burned totals, circulating supply, and max supply. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base45 ms153 payers100% up
  19. 100api.onesource.io/standard/v1/branches/summaryThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Summary across reserve branches. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base45 ms153 payers100% up
  20. 100api.onesource.io/standard/v1/vaults/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Latest expansion and contraction vault WETH balances, plus protocol-owned liquidity once observed on-chain. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base44 ms153 payers100% up
  21. 100api.onesource.io/standard/v1/auctions/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Current Dutch-auction quotes for the daily STANDARD license auction and the ETH charter auction: price now, floor, last sale, and whether a computed price is available. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base44 ms143 payers100% up
  22. 100api.onesource.io/standard/v1/policy/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. The current epoch's regime (expansion or contraction), signal, policy multiplier, net ETH flow and STANDARD issuance, plus time to epoch close. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base45 ms143 payers100% up
  23. 100api.onesource.io/standard/v1/backing/currentThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A snapshot of reserve backing: vault ETH balances, other reserve-asset holdings, and ETH backing per circulating STANDARD token. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base48 ms141 payers100% up
  24. 100api.onesource.io/standard/v1/branches/auction/liveThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Live Branch license auction state, read straight from the chain.$0.02 Base44 ms127 payers100% up
  25. 100api.onesource.io/standard/v1/buybacks/readinessThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Whether the contraction vault's next buyback tick can fire, its ETH capacity, cooldown remaining, and recent executed ticks. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base45 ms121 payers100% up
  26. 100api.onesource.io/standard/v1/flow/hourlyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Hourly ETH in/out and net flow through the STANDARD/ETH pool. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base47 ms119 payers100% up
  27. 100api.onesource.io/standard/v1/tax/scheduleThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. The launch tax hook's current buy and sell rates, its decay schedule, and a projection of where the rate is headed. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base46 ms116 payers100% up
  28. 100api.onesource.io/standard/v1/candlesThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. OHLC price candles for the STANDARD/ETH pool, priced in ETH per STANDARD.$0.02 Base43 ms116 payers100% up
  29. 100api.onesource.io/standard/v1/exit/fee-forecastThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A current-pace projection of the reserve's exit fee assuming no further withdrawals, day by day until it reaches the minimum rate. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base44 ms112 payers100% up
  30. 100api.onesource.io/standard/v1/chartersThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Charters, optionally filtered by owner. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.005 Base44 ms112 payers100% up
  31. 100api.onesource.io/standard/v1/exit/fee-curveThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. How the reserve's exit fee changes across a range of withdrawal sizes, checked two ways: a live contract read and this service's own formula. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base43 ms108 payers100% up
  32. 100api.onesource.io/standard/v1/branches/license-costThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Today's Branch license cost in ETH, compared against the charter auction's own price to show which path costs less. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base43 ms107 payers100% up
  33. 100api.onesource.io/standard/v1/issuance/runwayThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Cumulative STANDARD issuance against its budget, the current issuance rate, and a current-pace projection of when the budget runs out. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base46 ms105 payers100% up
  34. 100api.onesource.io/api/chain/pendingPending block - transactions not yet mined, via eth_getBlockByNumber("pending")$0.01 Base46 ms105 payers100% up
  35. 100api.onesource.io/standard/v1/policy/outlookThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. A current-pace projection of the Central Bank's policy multiplier and issuance rate if the current epoch's net flow direction holds until close. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base45 ms104 payers100% up
  36. 100api.onesource.io/standard/v1/supply/historyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Supply ledger history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base46 ms85 payers100% up
  37. 100api.onesource.io/standard/v1/exit-pressure/historyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Exit-pressure history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base44 ms85 payers100% up
  38. 100blockrun.ai/api/v1/pm/polymarket/marketsQuery Polymarket markets with filtering, sorting, and pagination$0.0085 Base108 ms78 payers100% up
  39. 100api.onesource.io/standard/v1/branches/doiThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Days of Issuance: how the current license price compares to the pace of new-Branch issuance.$0.02 Base47 ms77 payers100% up
  40. 100api.onesource.io/standard/v1/vaults/historyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Vault snapshot history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base59 ms74 payers100% up
  41. 100api.onesource.io/standard/v1/backing/historyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Backing-ratio history, joined against circulating supply as of each snapshot block. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base58 ms73 payers100% up
  42. 100api.onesource.io/standard/v1/policy/epochsThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Epoch history and boundaries. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base42 ms70 payers100% up
  43. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/prepare_loyalty_token_transferBuild B20/ERC-20 transfer calldata for the holder wallet to send loyalty tokens to any address (submit tx locally). Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.005 Base192 ms68 payers100% up
  44. 100api.onesource.io/standard/v1/auctions/salesThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Auction sale history, newest first. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base59 ms66 payers100% up
  45. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/redeem_my_rewardRedeem a reward into an active voucher after paying the token cost on-chain (requires transfer tx hash). Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.01 Base149 ms64 payers100% up
  46. 100api.onesource.io/standard/v1/dormancy/bountiesThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Wallets past their reportable dormancy window, ranked by the bounty an outside reporter could claim for flagging them. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base60 ms61 payers100% up
  47. 100api.onesource.io/standard/v1/constantsThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Chain-read protocol constants: base rate, epoch length, floors, and where each one was last read from.$0.005 Base60 ms60 payers100% up
  48. 100api.onesource.io/standard/v1/eventsThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Raw protocol event feed, newest first.$0.005 Base58 ms57 payers100% up
  49. 100api.onesource.io/standard/v1/auctions/daysThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Per-day history for the license or charter Dutch auction: open price, floor, close price, and how much sold each day. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.$0.02 Base47 ms56 payers100% up
  50. 100api.nansen.ai/api/v1/tgm/token-informationGet "Token God Mode" (TGM) token information data$0.01 Base119 ms54 payers100% up
  51. 100api.onesource.io/standard/v1/holders/concentrationThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. How concentrated Charter and Branch ownership is across wallets, including a standard concentration score and a genesis-versus-auction breakdown.$0.02 Base46 ms53 payers100% up
  52. 100api.loyalspark.online/x402-gateway/mcp-tools/use_voucherLoyalty rewards: Mark an active voucher as used at checkout (merchant scans code or voucher id). Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Send x-api-key: lsk_... (or Authorization: Bearer lsk_...) with the payment; without a live key you are not charged.$0.005 Base186 ms48 payers100% up
  53. 100api.onesource.io/standard/v1/decisions/branchThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to buy a Branch or license right now, bundled into one call.$0.05 Base60 ms47 payers100% up
  54. 100api.onesource.io/standard/v1/dormancyThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Wallet last-activity records, flagged reportable once past the dormancy window.$0.02 Base60 ms46 payers100% up
  55. 100x402.telnyx.com/v1/chat/completions/_t/deepseek-v4.1-flashChat completions via Telnyx Inference (deepseek-ai/DeepSeek-V4.1-Flash-1017). OpenAI-compatible. Up to $0.013389 USDC per call, quoted to your request (input + max_tokens at list rates, no markup).$0.002 Base158 ms37 payers100% up
  56. 100api.onesource.io/standard/v1/decisions/charterThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to buy into a new charter right now, bundled into one call.$0.05 Base61 ms36 payers100% up
  57. 100api.nansen.ai/api/v1/prediction-market/categoriesGet Prediction Market Categories$0.01 Base88 ms35 payers100% up
  58. 100win.oneshotagent.com/v1/tools/web-readRead a web page and extract content as markdown with screenshot$0.002 Base74 ms35 payers100% up
  59. 100blockrun.ai/api/v1/pm/kalshi/marketsQuery Kalshi markets with filtering, sorting, and pagination$0.0085 Base85 ms34 payers100% up
  60. 100blockrun.ai/api/v1/pm/polymarket/events/keysetList Polymarket events with cursor-based keyset pagination$0.0085 Base97 ms34 payers100% up
  61. 100api.loyalspark.online/x402-gateway/recipient-api/rewardsBrowse available loyalty rewards that a customer can redeem with tokens. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional. Scoped to the key's wallet. Skill guides: loyalspark.online/.well-known/skil...$0.001 Base189 ms34 payers100% up
  62. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/list_rewards_for_programList active rewards you can redeem for a program where your wallet has loyalty activity or balance. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.001 Base84 ms34 payers100% up
  63. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/get_recipient_profileLoyalty rewards: Recipient agent profile bound to rwk_ API key: wallet address, key scopes, and registration metadata. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Send x-api-key: rwk_... (or Authorization: Bearer rwk_...) with the payment; without a live key y...$0.001 Base70 ms34 payers100% up
  64. 100api.nansen.ai/api/v1/prediction-market/market-screenerGet Prediction Market Screener$0.01 Base85 ms33 payers100% up
  65. 100cloud.trycorpus.ai/v1/index/fixingcorpusAI Cloud Pricing: One day's fixing for a ticker: median USD per GPU-hour of eligible quotes, with low, high and count.$0.01 Base97 ms33 payers100% up
  66. 100api.loyalspark.online/x402-gateway/recipient-api/balanceGet a recipient wallet's balance for a specific loyalty token on Base. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional. Scoped to the key's wallet. Skill guides: loyalspark.online/.well-known/skills...$0.001 Base173 ms33 payers100% up
  67. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/list_my_loyalty_balancesAll loyalty token balances and tier levels for the holder wallet linked to this rwk_ key. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.001 Base84 ms32 payers100% up
  68. 100blockrun.ai/api/v1/pm/polymarket/tradesQuery historical Polymarket trade data with flexible filtering$0.0085 Base82 ms31 payers100% up
  69. 100api.loyalspark.online/x402-gateway/recipient-api/vouchersList a customer's redeemed reward vouchers and voucher codes. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional. Scoped to the key's wallet. Skill guides: loyalspark.online/.well-known/skills/index.md$0.001 Base177 ms31 payers100% up
  70. 100cloud.trycorpus.ai/v1/spot/latestcorpusAI Cloud Pricing: Price currently in force per zone and product for one instance type.$0.01 Base81 ms30 payers100% up
  71. 100cloud.trycorpus.ai/v1/tokens/fixingcorpusAI Cloud Pricing: One day's token price fixing for a ticker such as CX.TOK.CLAUDESONNET5.IN.$0.01 Base77 ms29 payers100% up
  72. 100cloud.trycorpus.ai/v1/spot/eventscorpusAI Cloud Pricing: Raw spot price-change events for one instance type.$0.01 Base78 ms29 payers100% up
  73. 100api.onesource.io/standard/v1/decisions/exitThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to exit a charter's branches right now, bundled into one call.$0.05 Base61 ms29 payers100% up
  74. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/list_my_gift_certificatesLoyalty rewards: List gift certificates claimed by your wallet with optional status filter. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.01 Base65 ms29 payers100% up
  75. 100api.loyalspark.online/x402-gateway/recipient-mcp-tools/list_my_vouchersLoyalty rewards: List vouchers issued to your wallet (active, used, expired) across enrolled loyalty programs. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional.$0.001 Base82 ms28 payers100% up
  76. 100blockrun.ai/api/v1/pm/polymarket/markets/keysetList Polymarket markets with cursor-based keyset pagination (same filters as /polymarket/markets)$0.0085 Base79 ms27 payers100% up
  77. 100cloud.trycorpus.ai/v1/azure/evictioncorpusAI Cloud Pricing: Azure spot eviction-rate history (28-day buckets, sampled daily).$0.01 Base84 ms26 payers100% up
  78. 100cloud.trycorpus.ai/v1/term/instancecorpusAI Cloud Pricing: Price ladder for one instance type: spot, on-demand, 1-year and 3-year commitments, with discounts.$0.01 Base91 ms26 payers100% up
  79. 100cloud.trycorpus.ai/v1/spot/hourlycorpusAI Cloud Pricing: Hourly time-weighted OHLC bars for one instance type.$0.01 Base80 ms26 payers100% up
  80. 100blockrun.ai/api/v1/pm/polymarket/eventsList Polymarket events with filtering and sorting$0.0085 Base98 ms26 payers100% up
  81. 100api.loyalspark.online/x402-gateway/recipient-api/balancesList all loyalty balances for the holder$0.001 Base244 ms26 payers100% up
  82. 100agent.pocket.network/v1/package-advisoriesDependency health across PyPI, npm, Go, Cargo, Maven, Composer, and NuGet via deps.dev and OSV: versions, licenses, and known vulnerabilities. POST /v1/tool with {package, ecosystem}, or GET /v1/package for the Bazaar listing. Deterministic per advisory state. Pay per request in USDC; no account, no API key.$0.005 Base141 ms25 payers100% up
  83. 100x402.ottoai.services/token-detailsToken price, market cap, volume, supply, and basic metrics. Works for any listed token.$0.001 Base200 ms23 payers100% up
  84. 100api.loyalspark.online/x402-gateway/recipient-api/prepare-transferPrepare an unsigned B20/ERC-20 loyalty token transfer transaction on Base. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Pay-only works: the paying wallet is the caller; API key optional. Scoped to the key's wallet. Skill guides: loyalspark.online/.well-known/sk...$0.005 Base181 ms23 payers100% up
  85. 100api.loyalspark.online/x402-gateway/mcp-tools/earn_pointsCalculate and mint loyalty tokens from a purchase amount using the program cashback rate (earn / cashback flow). Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Send x-api-key: lsk_... (or Authorization: Bearer lsk_...) with the payment; without a live key you are...$0.01 Base96 ms23 payers100% up
  86. 100cloud.trycorpus.ai/v1/ondemandcorpusAI Cloud Pricing: On-demand list-price history of one instance type.$0.01 Base78 ms22 payers100% up
  87. 100blockrun.ai/api/v1/pm/limitless/marketsList Limitless markets with filtering and sorting$0.0085 Base87 ms22 payers100% up
  88. 100agent.pocket.network/v1/prompt-injection-detectClassify agent-bound text for prompt injection: a safe, suspicious, or malicious verdict with the patterns that matched. POST /v1/prompt with {text} and get the classification as one JSON object. Deterministic per ruleset version. Pay per request in USDC; no account, no API key.$0.005 Base141 ms22 payers100% up
  89. 100api.loyalspark.online/x402-gateway/mcp-tools/mint_loyalty_tokensLoyalty rewards: Fee-first mint calls[] (protocol fee first, then recipient) + fee_obligation_id. Accepts 0x Base wallet or customer email in recipient_address (or recipient_email). Confirm with confirm_mint_fee. Onchain loyalty on Base: brands launch rewards in minutes, customers earn with every purchase, AI agents automate the rest via REST and MCP. Sen...$0.01 Base83 ms21 payers100% up
  90. 100blockrun.ai/api/v1/pm/predictfun/marketsList Predict.Fun markets with filtering and sorting$0.0085 Base97 ms20 payers100% up
  91. 100cloud.trycorpus.ai/v1/capacity/boardcorpusAI Cloud Pricing: Every GPU model's capacity stress score for one day, tightest first.$0.10 Base76 ms20 payers100% up
  92. 100cloud.trycorpus.ai/v1/gpu/quotescorpusAI Cloud Pricing: Latest rental quotes for one GPU model across neo-clouds, marketplaces and other clouds.$0.01 Base74 ms19 payers100% up
  93. 100cloud.trycorpus.ai/v1/spot/snapshot/allcorpusAI Cloud Pricing: Current spot price of every type and zone in every region of a provider, in one call.$1.00 Base90 ms18 payers100% up
  94. 100crypto.apitoll.cloud/v1/crypto/sentimentThe Crypto Fear & Greed index: the current market-sentiment score (0–100) and its classification (Extreme Fear → Extreme Greed), plus optional daily history. A widely-watched contrarian signal for crypto market timing. Sourced from Alternative.me.$0.001 Base137 ms17 payers100% up
  95. 100crypto.apitoll.cloud/v1/crypto/globalA snapshot of the total crypto market: aggregate market capitalization in USD, 24-hour trading volume, Bitcoin and Ethereum dominance percentages, 24h market-cap change, and the number of active cryptocurrencies and markets. The macro view in one call. Sourced from CoinGecko.$0.001 Base154 ms17 payers100% up
  96. 100x402.ottoai.services/funding-ratesCross-venue funding-rate arbitrage + crowded-positioning radar: live perp funding rates, open interest, global & top-trader long/short ratios, whale positions, and liquidations across Binance, OKX, Bybit, Hyperliquid, and more. Omit symbol for the whole-market overview; pass one (e.g. BTC) for the per-exchange breakdown. (Hyperliquid-only perp data: use hyperliquid-market.)$0.001 Base168 ms17 payers100% up
  97. 100blockrun.ai/api/v1/defillama/prices/coingecko:ethereum,coingecko:usd-coinToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base101 ms17 payers100% up
  98. 100cloud.trycorpus.ai/v1/spot/monthlycorpusAI Cloud Pricing: Full monthly history for one instance type, back to 2014 for legacy AWS types.$0.05 Base82 ms17 payers100% up
  99. 100cloud.trycorpus.ai/v1/gpu/snapshotcorpusAI Cloud Pricing: Every GPU model × provider × market: lowest and median USD per GPU-hour in the latest snapshot, plus hyperscaler spot per region.$0.10 Base77 ms17 payers100% up
  100. 100cloud.trycorpus.ai/v1/tokens/boardcorpusAI Cloud Pricing: Every model's input, output and blended fixing for one day, plus the frontier basket.$0.10 Base97 ms17 payers100% up