social-media-engagement-boost
145–168 of 797social.gedx402.com
social.gedx402.com
SociaVault API proxy — twitter-profile. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.
api.hergertsynthora.com
api.hergertsynthora.com
Insider-style trade detection on Polymarket: scans the latest large fills (min_usd, default 10000 USD) over lookback_hours (default 24) and flags wallets that are fresh (few lifetime trades), sized big vs the market 24h volume, or entered at extreme odds right before the market moved. Each alert carries wallet, market, size, tx hash, a 0-100 severity score and explicit reasons; approximations are declared in the methodology field. For prediction agents tracking informed money. No charge on service failure. Ed25519-signed. $0.03 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.
api.robinx.io
api.robinx.io
Live scored launch feed (realtime) — or add ?tier=free for the 10-min-delayed free feed, or ?tier=alpha ($0.02) for caller_signal enrichment
api.hergertsynthora.com
api.hergertsynthora.com
Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.
api.hergertsynthora.com
api.hergertsynthora.com
Polymarket odds movers: active markets ranked by biggest price swing in the last 1h / 24h / 1wk (window param), with yes price, change and direction, best bid/ask, spread, 24h volume, liquidity and end date. The momentum signal prediction bots scan before entering a market. No charge on service failure. Ed25519-signed. $0.10 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.
api.hergertsynthora.com
api.hergertsynthora.com
Polymarket resolution watch: markets ending within N days (default 7) with UMA resolution status (proposed/disputed), UMA bond and reward, hours to resolution, last price, 24h volume, liquidity and a uma_risk flag for contested or undecided resolutions. Lets prediction agents avoid or exploit resolution risk. No charge on service failure. Ed25519-signed. $0.10 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.
api.agentfeeds.jp
api.agentfeeds.jp
Estimated Base execution-gas cost of a settlement transaction (e.g. an ERC-3009 transferWithAuthorization), computed from our own current base-fee and ETH/USD observations. Execution gas only -- excludes priority fee and the Base L1 data fee, so treat this as a lower-bound estimate. Useful for micropayment break-even decisions. Descriptive statistics only; not investment advice.
onchainpulse.theaslangroupllc.com
onchainpulse.theaslangroupllc.com
Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership renounced, transfer-pausable, blacklist — the raw flags, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest first check before you trade; upgrade to /api/evmtoken ($0.015) for the fused CLEAR/CAUTION/AVOID verdict with liquidity and momentum.
lionx402.com
lionx402.com
Screen a company or entity name against multi-list sanctions (OFAC/EU/UN public designations index). PASS/BLOCK. Fail-safe if lists unavailable. $0.01 Base USDC, keyless, Ed25519-attested.
data.greeneris.io
data.greeneris.io
Depeg monitor for USD stablecoins (USDT, USDC, DAI, FDUSD, TUSD, USDe, PYUSD): DeFiLlama market-aggregate price per coin, converted to a deviation from 1.0 in basis points, with a depeg_alert flag (triggered beyond 50 bps) and the worst deviation across the set. Query: symbols=USDT,USDC,DAI (max 8, default shown). JSON, 60s cache. Derived risk signal, not a raw feed.
base-intel-api.jakemaxsigal.workers.dev
base-intel-api.jakemaxsigal.workers.dev
Base token launch score / memecoin risk API / new token rug-check / token launch quality grade / token safety score. Scores fresh token launches on Base 0-100 with deployer identity, social signals, token age, and a risk grade (lower/medium/higher). For AI trading agents and traders screening new Base tokens before buying.
palmyr.ai
palmyr.ai
Register a domain for one year via Namecheap. Pricing is dynamic per-TLD — the 402 challenge returns the exact USDC amount (~$10 typical). Body: { domain }
api.seneschal.space
api.seneschal.space
Per-slot builder bids + realised proposer payment from the Seneschal shadow recorder, as CSV or JSON lines (?format=csv|jsonl). Range: ?from_block=&to_block= (max 100000 blocks) or ?window_ms= (max 30d). Columns: block, ts_ms, iso_time, miner, builder, actual_total_eth (= what the proposer actually got: priority + coinbase), actual_priority_eth, actual_coinbase_eth, shadow_bid_eth, would_have_won, tx_count. Live tail: GET /v1/q/proposer-payment ($0.001).
defillama.use.x402atlas.com
defillama.use.x402atlas.com
Fees & revenue for one chain by DefiLlama — protocol fees and revenue on a single chain.
api.osf-master-server.com
api.osf-master-server.com
Sample any single record in the OSF catalog for $0.001: the full JSON payload plus a provenance URL to the authoritative primary source. A low cost way for an autonomous agent to try the data before buying at the standard per record or search price. One verified record per call keyed by record_id from the free catalog, across 80 sources of US government and scientific data. Fair use daily cap per wallet.
api.myceliasignal.com
api.myceliasignal.com
Solana transaction fee — current lamports per signature for Solana network cost estimation — Ed25519 signed attestation
api.myceliasignal.com
api.myceliasignal.com
Solana open interest across 5 exchanges — aggregated OI with deltas for positioning and sentiment — Ed25519 signed attestation
x402.aispace.bot
x402.aispace.bot
Remove the background from an image and return a transparent PNG, paid per request in USDC on Base via x402, no API key. Venice accepts only `image` (no `model`); optional `model` on the request is used for pricing then stripped before proxy.
agentoracle.co
agentoracle.co
Load when an agent needs up to 5 pre-action verifications in parallel — same confidence scoring + signed receipts as /research. $0.10 USDC per batch on Base.
agentoracle.co
agentoracle.co
Load when an agent needs deep pre-action verification before a high-stakes action — multi-source analysis + per-claim confidence + JWS-signed receipt. Sonar Pro backend. $0.10 USDC per query on Base.
agentoracle.co
agentoracle.co
Pre-action verification layer for AI agents. Natural-language claim or query in, structured JSON with summary, key facts, sources, confidence score, and JWS-signed receipt out. Offline-verifiable per draft-krausz-verification-state. $0.02 USDC per query on Base.
api.anchor-x402.com
api.anchor-x402.com
x402 spend accounting for any Base wallet — totals + per-service breakdown reconstructed from chain data. $0.01 USDC.
Real-time crypto Fear & Greed index (0-100) with classification and history. Market-sentim
fear-greed.hergertsynthora.com
Real-time crypto Fear & Greed index (0-100) with classification and history. Market-sentiment signal for allocation agents. Free source, deterministic. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
toolcall.click
toolcall.click
Email verification and deliverability check without sending anything: syntax, MX records, disposable-domain detection (121k+ known domains), role-account and free-provider flags. JSON verdict with a bounce/deliverability risk level. Validate emails for signup fraud prevention, list hygiene and lead qualification. $0.004 USDC per call, pay via x402, no API key.