Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8146 indexable offerings in this category.
AgentOracle: latest spot price for a single token by ticker symbol — minimal payload (`{ symbol, priceUsd, asOf }`) optimised for high-frequency polling agents. Case-insensitive symbol; returns 404 for unknown symbols.
BTC futures term structure — basis, annualized carry, contango/backwardation across 3 exchanges — Ed25519 signed attestation
Bitcoin address validator and BIP21 bitcoin: URI parser: validity, network (mainnet/testnet/regtest), type (p2pkh, p2sh, p2wpkh, p2wsh, p2tr), encoding (base58/bech32/bech32m), scriptPubKey, and BIP21 fields (amount, label, message, req- params).
Balance and unspent outputs for a Bitcoin address. Returns confirmed and mempool balance, funded and spent totals, transaction count and a capped UTXO set for a legacy, p2sh or bech32 address. Informational, not advice.
Bitcoin block metadata by height or hash (or the chain tip when neither is given), fused with the current difficulty-adjustment context, a computed halving countdown and a network hashrate snapshot. Informational, not advice.
Bitcoin block metadata by height or hash (or the chain tip when neither is given), fused with the current difficulty-adjustment context, a computed halving countdown and a network hashrate snapshot. Informational, not advice.
Recommended Bitcoin transaction fee-rates in sat per vByte across five confirmation horizons (fastest, half hour, hour, economy, minimum) plus a live mempool congestion snapshot with an estimated block backlog. Informational, not advice.
Decoded Bitcoin transaction by txid: inputs and outputs, fee, size, weight and virtual size, replace-by-fee flag, and confirmation status with a confirmation count. Informational, not advice.
Decoded Bitcoin transaction by txid: inputs and outputs, fee, size, weight and virtual size, replace-by-fee flag, and confirmation status with a confirmation count. Informational, not advice.
Bitcoin raw transaction decoder: decode tx hex to txid/wtxid, version, locktime, size/vsize/weight, segwit, RBF (BIP125) signaling, inputs (outpoint, sequence, witness) and outputs (value, script typ…
Bitcoin PSBT analyzer (BIP174/370, base64 or hex): total in/out, absolute fee and fee rate (sat/vB), high-fee sanity warnings, dust outputs, change detection (BIP32-derived outputs), RBF signaling, s…
BTC/USD funding rate composite — 5 exchanges, OI-weighted + median, predicted rate, regime — Ed25519 signed attestation
ERC-20 token report on Base/Ethereum: name, symbol, decimals, total supply, USD price. Onchain pay-per-call in USDC.
Address label/classify on Base/Ethereum: contract-vs-EOA + code presence (+ENS). Onchain USDC pay-per-call.
Base wallet portfolio in one call: native + major ERC-20 balances with USD values and total. Onchain USDC pay-per-call.
Base/EVM gas oracle: base fee + priority-fee percentiles (slow/avg/fast) + next-block estimate. Onchain pay-per-call in USDC.
Best DeFi yields: top pools by APY filtered by asset + min TVL, with risk flags. Agent-ready, USDC pay-per-call.
Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.
Generates bundled outputs for quick on-chain batch creation and deployment.
BunnVault: Real-time Aave v3 USDC APY feed on Base Mainnet
Burs-IA Agent Check: confirms an x402 USDC payment path to Burs-IA settles on Base and, when agent_ref is a public HTTPS A2A Agent Card URL, reviews that card read-only for reachability, structure and discovery metadata. Useful as a low-cost pre-integration check before relying on or paying another agent. Returns a JSON result with PASS or finding codes; no task execution or privileged access.
Paid x402 v2 agent readiness, interoperability, and payment-path verification with a durable settlement receipt.
Paid x402 v2 agent readiness, interoperability, and payment-path verification with a durable settlement receipt.
Paid x402 v2 agent readiness, interoperability, and payment-path verification with a durable settlement receipt.