Explore APIs

Top crypto protocol earnings yields from EarlyThunder: yield percent, source of yield, TVL and risk rating for 15 protocols.

AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat

Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.

ERC-20 token safety pre-check from on-chain data only (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC): name/symbol/decimals/supply, owner and whether renounced, EIP-1967/minimal proxy detection, and a bytecode scan (incl. implementation) for mint, blacklist, adjustable-fee, max-tx, trading-switch and pause functions, with flags and a risk level. Run before swapping into an unknown token. $0.005

Cheap x402 ping. Returns server time and receive wallet. $0.001 USDC on Base.

Go module github.com/gin-gonic/gin: latest version, description, license, repository and download/publish data from the go registry API. Pin, audit or compare github.com/gin-gonic/gin in one call, no token. $0.01 per call.

When to use: book of market premiums → need IV grid + per-quote Greeks (not a single contract). Shared rate/yield; each row has its own underlying (power/commodity forwards by maturity). Returns strike×maturity IV surface, fit quality, solve stats. USDC exact on Solana/Base. Prefer single IV endpoint for one premium.

MCP server (streamable HTTP). Tools: events_since, impact_for, exposure_graph, regime_snapshot, explain, universe, sources_status.

AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat

Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.

Live Base snapshot for AI agents. Each GET returns the current Base block number, base fee, gas price, ETH-USD price, and a unique receipt. Price is exactly $0.01 USDC on Base via x402. No API key and no RPC method. GET /ping returns the same snapshot. Use it as a chain read or as the cheap call that proves an x402 client can pay.

AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat

Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.

One call replaces four for AI agents: CoinGecko BTC/ETH/SOL/HYPE spots + 24h change, Fear & Greed, Hyperliquid funding/mark/OI, DefiLlama TVL/yields, plus a plain-English summary and signals. Keyless upstreams, 60s live cache, x402 USDC on Solana. Free sample GET /v1/sample; MCP POST /mcp.

Token security / rug-pull risk check for any ERC-20 (honeypot, mintable, owner privileges, tax, LP holders). Essential pre-trade safety check for trading agents.

Crypto news feed, $0.0008 USDC per call: deduplicated headlines from 37 public sources (CoinDesk, Cointelegraph, The Block, Decrypt, DL News, Blockworks, Ethereum/Solana/Base blogs, Uniswap/Aave/Arbitrum/Optimism forums, GitHub releases of geth, reth, agave, Bitcoin Core). Each item: title, source url, source, published_at, topics, tickers, summary. Filters: topics, tickers, q, type. since cursor

On-chain contract risk score: detects upgradeable proxies and privileged functions from live bytecode. Use before trading/interacting with an unfamiliar contract.

EVM address checksum and validation — check an Ethereum/Base address format before sending funds.

EVM address format, lowercase form and EIP-55 checksum in checksum mode — check an Ethereum/Base address before sending funds.

Count characters, words, lines, bytes and estimate LLM tokens for a text, so an agent can budget context before sending it.

Baidu real-time hot search top list. Chinese-language trending topics with rank, title and heat score. Useful for content planning, market sentiment and picking what to write about next. Optional ?limit=1-50. No API key and no signup: call the endpoint, it answers HTTP 402 with the payment terms, pay per request in USDC on Base with any x402-compatible client or wallet, then retry the same request

Write an X thread from a brief — hook, one idea per post, closing payoff. Optionally grounded in a crypto bounty's criteria and project research via bountyId (Pump Fun GO and other venues).

Solana USDC x402 exact settlement smoke test; costs 0.01 USDC, does not use Lumia.

HTTP endpoint health audit for one URL: status and redirect chain, latency p50/p95 over repeated samples, TLS certificate expiry and issuer, the response headers that matter, and a list of detected anomalies (missing HSTS/CSP/X-Content-Type-Options, expiring cert, weak TLS, CORS wildcard, insecure cookies, version disclosure, slow p95, redirect loops). Private, loopback and link-local targets are

Solana token safety / rug-pull check for SPL tokens (pump.fun, Raydium, Meteora, Jupiter): one-sentence verdict, blocking/warnings/unknowns, mint & freeze authority, RugCheck score & risks, LP locked %, holder count & top-10 concentration, liquidity & price, 1h volume & buy/sell flow, age -> casino|speculative|legit.

Current gas price and fee suggestion on Base or Ethereum: base fee, priority fee (low/standard/fast), max fee to set, and what an ETH transfer, ERC-20 transfer and DEX swap cost right now in gwei, ETH and USD (Chainlink ETH/USD). Know what a transaction costs before you send it.

ChainRay /token-risk

Ethereum: Wallet portfolio: native balance plus every ERC-20 holding with USD price and value, total net worth, NFT collection count. $0.03 per call.

Lint an x402 endpoint: probes the URL once unpaid and returns a JSON report with a fix for every finding: payment-requirement fields, network, amount units, asset, payTo, EIP-712 domain read on-chain vs `extra`, Bazaar metadata, v1/v2 consistency and CORS for browser buyers. Free demo: GET /v1/check?url=

Cost-aware crypto perpetual risk report for trading agents: projected net carry, break-even time, market regime, breadth, funding crowding, basis outliers, open interest, 24h persistence, and transparent risk flags.