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DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. VPIN estimates volume-synchronized probability of informed trading for a crypto trading pair over a specified window. Discovery examples use the latest 30m window.

Recent SEC filings (10-K, 10-Q, 8-K) for a US-listed company, via SEC EDGAR Submissions API. Requires 'ticker' query param, one of the 10 whitelisted stock tickers.

Persona voice generation and expressive TTS for agents. Generate inline WAV speech with 20 voices including Assistant, Storyteller, Velvet, Urgent, speed controls, quality controls, and up to 500 chars for $0.005.

Provides a condensed summary or overview of an agent's execution trace.

OpenAI-compatible text embeddings (text-embedding-3-small by default; 3-large and ada-002 supported), up to 64 inputs or 16k chars per call, returned in the standard OpenAI shape. Identical inputs repeated within 10 minutes are served free from cache. Use it for semantic search, clustering and retrieval from any OpenAI SDK by changing base_url.

Returns known vulnerabilities associated with software packages.

Checks whether a tank/vessel reported level change is physically consistent with its metered flow-in/flow-out via conservation of mass. Pass asset_id, flow_in, flow_out, level_start, level_end, dt_seconds (>0), tank_area (>0), optional noise_floor (default 0.5). Fully deterministic, no LLM, no trained model. Inspired by Barbhaya et al. 2025 physical-invariant residual check — flags inconsistency and direction, does not assert a specific cause.

Every private foundation that has actually paid a grant to a recipient in Scotts Bluff County, from public-domain IRS Form 990-PF Part XV filings: funder, city/state, total paid here, each recipient + amount + purpose, and the published application contact and deadline where the filer discloses one. HISTORICAL (grants already paid, mostly tax year 2024), not open opportunities. GET /v1/grantmakers.

One Nebraska county's Neb. Rev. Stat. 77-1801 delinquent / tax-sale advertising list: parcels, owners, balances due, districts and advertised years. Scotts Bluff (the default) refreshes live; add ?county=<slug> for any of the 72 counties in the statewide snapshot. The lead source for tax-lien and tax-deed investors. GET /v1/tax-sale-list.

SYNTHORA tx-simulator: simulate an EVM transaction before signing — SAFE/WARN/DANGER verdict, decoded intent, warnings and checks performed. Pre-trade safety for agent wallets. $0.03 USDC x402 Base.

SYNTHORA threat-exposure: external attack-surface score for any domain/host — exposure breakdown with deterministic evidence (historic IPs, open surfaces). $0.03 USDC x402 Base.

SYNTHORA rwa-gap-watch: the gap between tokenized stocks (Ondo AAPLon, TSLAon, NVDAon, SPYon, HOODon...) trading 24/7 on-chain and their last official NYSE close — on-chain price discovery happens BEFORE TradFi opens (weekend/overnight edge for investors). Cross-verified: best-liquidity pool (DexScreener, multi-chain) x official close (Yahoo), zombie/fake pools detected and reported, per-asset confidence by liquidity. $0.03 USDC x402 Base.

Convenience due-diligence bundle for one street address. Runs free coverage-aware parcel checks plus paid local-change and property bill/ordinance analysis when component readiness is strong. Returns componentStatus, citations, caveats, and verify-next steps. Not inspection, appraisal, valuation, screening, or legal advice. Install agent skill: npx @velinussage/locus-agent-skill add.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Currently banned peer IPs and subnets from chainquery's independent full node. Bitcoin Core listbanned.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Current proof-of-work difficulty from chainquery's independent full node. Bitcoin Core getdifficulty.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Node memory-usage statistics from chainquery's independent full node. Bitcoin Core getmemoryinfo.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Number of peer connections from chainquery's independent full node. Bitcoin Core getconnectioncount.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Build an unsigned raw transaction hex from inputs and outputs. Bitcoin Core createrawtransaction.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Convert a raw transaction hex into a PSBT. Bitcoin Core converttopsbt.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Create an unsigned PSBT from inputs and outputs. Bitcoin Core createpsbt.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Node network state from chainquery's independent full node: version, subversion, connections, relay fee. Bitcoin Core getnetworkinfo.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Derive addresses from an output descriptor, single or over a range. Bitcoin Core deriveaddresses.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Combine partially-signed raw transactions into one fully-signed transaction. Bitcoin Core combinerawtransaction.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Build an m-of-n multisig address and redeem script from public keys. Bitcoin Core createmultisig.