Explore APIs

Token-aware text chunks with heading path inheritance and stable sha256 chunk ids (cl100k).

ENS (.eth) + Basename (.base.eth) forward/reverse resolution on Base/Ethereum public RPC. Avatar optional. Amp port.

ERC-20 name/symbol/decimals/totalSupply (+ optional balanceOf) via multicall3 on Base or Ethereum. 400 if not a contract. Amp port.

Latest eth_blockNumber for Base and/or Ethereum; optional tip timestamp. ~2s cache. Amp port.

Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.

Crypto Market Data Integrity Attestation for agents and trading systems. Validate caller-supplied crypto market observations for causal timing, freshness, gaps, sequencing, identity consistency, and cryptographic record hashes. Returns deterministic PASS/FAIL, safe_to_use, named checks, and attestation identity. Use before analytics, research, or trading workflows. No market data acquisition or re

Use when an agent is about to crawl, train on or ingest a website into RAG: checks the domain's AI consent and licensing signals (robots.txt per AI bot, RSL license, IETF AIPREF, TDMRep, noai meta tags, llms.txt, C2PA), returns a 0-100 score and a training stance, and a signed EAS receipt anchored on Base proving what was checked and when. Errors: 400 invalid domain; 502 site unreachable (not char

Multi-source verified token price (DeFiLlama + Coinbase spot). Data only, not advice. Soft-fail per source; no charge when all fail.

Cheap BTC/ETH/SOL/HYPE USD spots + 24h change from CoinGecko, with summary. Use /v1/pulse when you also need Fear & Greed, funding, or DeFi (one call replaces four).

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ethereum-only coverage. List your own x402 service on bazaar.agentexchange.work/listings: 1 USD, 30 days, live at once, no account.

Token contract facts for agents on Base. Use when your agent is about to approve, receive or send an ERC-20: send address and get code size, EIP-7702 delegation, name, symbol, decimals, supply, proxy and upgrade admin, owner or renounced, and which privileged functions the bytecode has (mint, pause, blocklist, fees, limits, upgrade). Facts only: no grades, not investment advice. Built and run by W

Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet.

Get a client token for direct upload to Vercel Blob

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Simulate an Ethereum or Base transaction before execution and return an ALLOW, WARN, BLOCK, or INCOMPLETE decision with deterministic risk findings. Supports legacy post-execution inspection via tx_hash and pre-execution simulation via {from, to, value, data}.

CMC regime classification + strategy spec (USDC pay-per-call). Free preview: GET /regime/preview A bad or unsupported id returns 400; upstream failure returns 503; you are never charged for an error.

Generate one or more uniformly-distributed random integers in an inclusive [min, max] range.

Returns a per-day download time series for an npm package over a period from keyless api.npmjs.org — the raw signal for trend and growth-rate detection. Lets autonomous agents compute momentum/decline and feed agent-to-agent dependency-selection scoring. Ranking surface for trajectory. First call FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

Safety Check (TAP Labs (made by TAP)): Token safety and security check for a token on Base or Solana, or a contract on Base, before you buy or swap. Looks for scam and rug pull warning signs: who can mint, freeze, blacklist, pause, tax or upgrade it, thin liquidity, a brand-new pool, big holders (Solana; Base tokens under 5 hours old), unverified code and scam-list matches (Base) and OFAC sanction

Roll dice notation with a cryptographically secure RNG, optionally repeated. Returns per-die rolls, the kept dice and the total for each roll.

Teardrop crypto research agent over A2A: ask in plain language about token prices, DeFi yields and lending, wallet portfolios, approvals and counterparty risk, or onchain transactions; the agent plans and runs Teardrop's onchain data tools and returns a completed task. Pay per task with x402 USDC on Base.

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

USE WHEN: An autonomous DeFi agent needs to POST { chain, address } to verify smart contract honeypot traps, owner privileges, and pool liquidity.

Premium alpha — Curated on-chain alpha: yield venues, mempool anomalies, and replayable agent trade intents.

Pre-trade risk check for any Base ERC-20 token address. Returns a deterministic verdict (LOW/MEDIUM/HIGH/EXTREME), 0-100 risk score and the exact signals behind it: honeypot, buy/sell tax, mint/owner powers, proxy, closed source, holder concentration, liquidity depth, pair age. No AI, same input = same answer. Automated heuristic, not financial advice. Data: GoPlus Security, DEX Screener, Base RPC

Current summary row for one Robinhood tokenized-stock token: total supply, treasury balance, multiplier, and whether the queried address is a known look-alike of a tracked token. Identify by ticker or exact contract address. On-chain observations reconstructed from chain event logs, not financial advice.

Read official Base Uniswap V3 NFT and pool state at one canonical block hash. Reconcile exact token inventory and fee-growth checkpoints against optional reported raw amounts. Return signed discrepancies, reproducible inputs and uint128 accounting semantics. Recorded tokensOwed may include withdrawn principal, not only fees. Read-only; no USD valuation, trading, custody or profitability claim.

Horizon Pulse — real-time crypto market data + momentum signals (BTC/ETH/SOL) tuned for AI agents

Latest PulseChain block number and timestamp.

cogDepot agent marketplace API. The per-call offer buys this one response and creates no account. Any credit pack offer buys credits for the paying wallet's account; a first pack payment creates the account.