| Prompt-Injection Firewall Scans untrusted text, HTML, email, document text, API responses, and tool outputs for prompt injection, credential theft, data exfiltration, tool manipulation, and other instructions that could compromise an autonomous AI agent. Returns a machine-readable risk assessment and sanitized plain text when possible. Scan untrusted content before adding it to context, following its instructions, or acting on it. | dropenginehq.com | - | $0.005 | listed |
| Proof API Official $0.01 proof-of-life resource for SpendTheBits x402: returns a JSON heartbeat. Pay it to verify your agent's x402 client end to end. | spendthebits.com | - | $0.01 | listed |
| ProofPulse Check a public URL for meaningful changes and freshness. | workers.dev | - | $0.02 | listed |
| PropPulse Landlord toolkit, rent pricing, tenant screening, and lease-law lookup: market rent guidance, tenant-screening steps, lease-law summary, eviction timeline, landlord tax flags, and local landlord/rent-control regulations for any market worldwide. For landlord and property-management agents. | theaslangroupllc.com | - | $0.12 | listed |
| PropPulse Neighborhood report, school ratings, crime and safety, and walkability score: walk score, school rating, crime index, median income, price appreciation, and area vibe with investment outlook for any global location. For homebuyer and relocation agents. | theaslangroupllc.com | - | $0.10 | listed |
| PropPulse Rental property investment analysis: cap rate, cash-on-cash return, gross rent multiplier, break-even occupancy, 5-year appreciation projection, investment grade, and jurisdiction-aware landlord tax flags (UK Section 24, CA no principal-residence exemption, DE 10yr speculation period). For real-estate-investor agents. | theaslangroupllc.com | - | $0.15 | listed |
| PropPulse Mortgage calculator and current mortgage rates: payment breakdown, loan amount, total interest, affordability check, and lender options — jurisdiction-aware (US 30/15yr fixed, UK fixed-deal/remortgage, CA term/amortization, DE Zinsbindung, AU offset, IN floating). For homebuyer and mortgage agents. | theaslangroupllc.com | - | $0.10 | listed |
| PropPulse Rent-vs-buy calculator: break-even timeline, 5-year cost comparison, equity built, and net advantage of buying versus renting with live market context to decide whether to rent or buy in any area worldwide. For homebuyer and personal-finance agents. | theaslangroupllc.com | - | $0.10 | listed |
| PropPulse First-time homebuyer assistance finder: DPA grants (US), Stamp Duty relief/LISA (UK), FHSA/RRSP HBP (CA), FHOG/FHSSS (AU), honest no-scheme note (DE), eligible loan types, max home price, closing-cost estimate, step-by-step process. For homebuyer and real-estate agents. | theaslangroupllc.com | - | $0.10 | listed |
| PropPulse Home affordability calculator (how much house can I afford): max and recommended purchase price, true monthly cost, and debt/income ratio against income and debt for any global location. For homebuyer and personal-finance agents. | theaslangroupllc.com | - | $0.10 | listed |
| PropPulse Council-tax challenge letter preview — verdict (letter_supportable / blocked-on-risk-ack / not-supportable) from the same neighbor-band cluster + statutory-route engine the $2 letter uses internally, plus exactly what the letter adds. Agent-tier price point for buyers with a $0.25 per-call cap. No LLM. | theaslangroupllc.com | - | $0.25 | listed |
| PropPulse Council-tax challenge document — formal VOA proposal (statutory ground stated), informal band-review request, or Scottish Assessor proposal, built from your comparable-band table with the verified process timelines and appeal rights. Never includes index-estimate evidence (the VOA rejects it). Honest-no without the risk acknowledgment or a supporting cluster. | theaslangroupllc.com | - | $2.00 | listed |
| Property Due Diligence Agent Property due diligence agent for US housing compliance open data. Is this property licensed? Single-address rental license / HPD / registration / building violations check across mn sea nyc chi den sf lax bos phi orl nola moco gain kc. GET ?city_code=&address= → compliance_verdict + license/violation fields (JSON). Tenant screening, landlord DD, lending. $0.01 USDC on Base. | onrender.com | - | $0.01 | listed |
| Property Tax Burden Context API Property tax burden context: ACS 2023 median real-estate taxes paid, median home value, and the effective rate they imply at ZIP, county, and state, with the Lincoln Institute 50-state study linked. Perfect for: 'effective property tax rate here', 'is this tax bill typical for the county'. Locality estimate, not this parcel's bill. National. Free at /tools/call. | locus.report | - | $0.01 | listed |
| Proportional Kelly-like stakes across exclusive outcomes. Call when allocating bankroll across multi-outcome prediction markets. Returns stakes and fractions per outcome as deterministic JSON for $0.0 Proportional Kelly-like stakes across exclusive outcomes. Call when allocating bankroll across multi-outcome prediction markets. Returns stakes and fractions per outcome as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls. | delx.ai | - | $0.001 | listed |
| Proposal Summary API Splits caller-supplied proposal text into sentences, scores each sentence by normalized non-stopword frequency, and returns the highest-scoring sentences in source order. It does not infer unstated intent, verify claims, or produce an abstractive interpretation. | halowerk.com | - | $0.003 | listed |
| Prospect Intelligence Prospect Intelligence | workers.dev | - | $0.75 | listed |
| Prospect Intelligence Prospect Intelligence | workers.dev | - | $0.10 | listed |
| ProspectPulse Country and region endowment in energy-transition and strategic minerals (Li, Co, Ni, REE, Cu, graphite, PGE, uranium) for mining and resource-investment agents, with supply-chain geopolitics on each. | theaslangroupllc.com | - | $0.25 | listed |
| ProspectPulse Deterministic facts-only snapshot for exploration targets: USGS MRDS deposit counts, geochemical anomaly stats, satellite scene availability, World Bank jurisdiction governance score, and GDELT social-license signal — raw numbers, no AI synthesis. Lite-tier preview of /api/prospect/exploration-brief. | theaslangroupllc.com | - | $0.25 | listed |
| ProspectPulse Global supply and demand analysis for any mining commodity (Li, Co, Ni, Cu, REE, Au, Ag, Pt, U, graphite) for commodity and mining-investment agents, with energy-transition context on where structural deficits are forming. | theaslangroupllc.com | - | $0.20 | listed |
| ProspectPulse Community opposition intelligence for mining and ESG-risk agents. Returns indigenous-rights and FPIC assessment, water-conflict risk, and ESG red flags for mining in any location, with a social-license read before capital is committed. | theaslangroupllc.com | - | $0.20 | listed |
| ProspectPulse Which free Sentinel-1/2, ASTER, and Landsat scenes cover a target area, plus a geological remote-sensing guide, for exploration and geology agents. Returns scene availability and which sensor maps which alteration mineral. | theaslangroupllc.com | - | $0.10 | listed |
| ProspectPulse Sedimentary basin analysis for petroleum and upstream-investment agents. Returns petroleum system, play types, undiscovered resource estimates, and exploration risk for oil and gas basins worldwide. | theaslangroupllc.com | - | $0.25 | listed |
| ProspectPulse USGS National Geochemical Database query plus AI interpretation for exploration and geology agents. Returns element anomalies, pathfinder suites, and deposit-type signatures for any region. | theaslangroupllc.com | - | $0.15 | listed |
| ProspectPulse USGS MRDS records plus exploration-news synthesis for any named mineral deposit or mine worldwide, for exploration and due-diligence agents. The fast read on a specific asset, its grade, status, and recent activity. | theaslangroupllc.com | - | $0.20 | listed |
| ProspectPulse Entry-risk assessment for exploration in 80+ countries, for mining and investment agents. Covers mining code, royalties, permitting timeline, political risk, and operational context to judge whether a jurisdiction is investable. | theaslangroupllc.com | - | $0.25 | listed |
| ProspectPulse Mineral prospectivity assessment for any region, for exploration and geology agents. Combines USGS MRDS deposit inventory, geochemical anomaly data, and AI geological synthesis to rank what a region is likely to host. | theaslangroupllc.com | - | $0.25 | listed |
| ProspectPulse Board-ready exploration decision document for mining and investment agents. Synthesizes geology, geochemistry, satellite, jurisdiction, social license, and commodity intelligence into one premium target report with a proceed-or-pass call. | theaslangroupllc.com | - | $0.35 | listed |
| Protein Data Bank Structure (rcsb Pdb) API Protein Data Bank Structure (RCSB PDB). Protein Data Bank structure lookup by PDB id (4HHB): title, experimental method, resolution, release date, molecular weight, each polymer chain with organism and UniProt ids, bound ligands with formulas, primary citation (DOI, PubMed) and coordinate file links. RCSB PDB, CC0. | saylorinnovations.com | - | $2,000.00 | listed |
| Protein Domains API Look up protein domains, families and conserved sites with GO terms and sequence locations. | oneshotagent.com | - | $0.005 | listed |
| Protein Folding API Checks that a hydrophobic/polar sequence follows a self-avoiding unit-step lattice path, then counts non-consecutive hydrophobic contacts and assigns one negative energy unit per contact. It evaluates a supplied toy conformation only; it neither predicts a fold nor represents atomic chemistry, kinetics, solvent or biological function. | halowerk.com | - | $0.004 | listed |
| Protein Function API Look up a protein’s function, literature citations, organism, cellular locations and catalytic activities by accession. | oneshotagent.com | - | $0.005 | listed |
| Protein Function Lookup (uniprot) API Protein Function Lookup (UniProt). Protein function lookup by UniProt accession or gene symbol (TP53, BRCA1; human default, ?organism= taxon for others): recommended name, function, subcellular location, tissue specificity, associated diseases with OMIM ids, GO terms, keywords, EC numbers, PDB structures and AlphaFold model id. UniProtKB, CC BY 4.0. | saylorinnovations.com | - | $3,000.00 | listed |
| Protein Search (uniprot) API Protein Search (UniProt). Protein search across UniProtKB by name, function or gene: accession, protein name, gene, organism, length and reviewed (Swiss-Prot) status, with a detail link per hit. Reviewed entries by default; ?organism= taxon filter, ?reviewed=false to include TrEMBL. | saylorinnovations.com | - | $2,000.00 | listed |
| Protein Sequence API Get the reference amino-acid sequence of a protein or an isoform by UniProt accession, with its length, weight, checksums and isoforms. | oneshotagent.com | - | $0.005 | listed |
| Protein Structure API Give the experimental structures or the predicted model of a protein by its UniProt accession. | oneshotagent.com | - | $0.005 | listed |
| Protein Structure Search (rcsb Pdb) API Protein Structure Search (RCSB PDB). Search the Protein Data Bank for 3D structures by free text (protein, organism, ligand, disease): total matches plus the top entries with title, method, resolution and release date, each linking to the full structure record. RCSB PDB, CC0. | saylorinnovations.com | - | $2,000.00 | listed |
| Protocol Fees & Revenue Crypto protocols ranked by fees paid by users or revenue kept (Tether, Circle, Uniswap, Hyperliquid, chains...) over 24h, 7d and 30d, for all chains or one chain. Use for fundamental analysis and protocol valuation. | onrender.com | - | $0.002 | listed |
| Protocol Fees And Revenue API Protocol fees and revenue: who earns the most (24h/7d), all chains or one chain — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.005 | listed |
| Protocol Radar - Aaron Zhang x402 protocol updates as JSON: recently merged changes in the x402 Foundation repository (formerly coinbase/x402), latest tags, and current npm versions of the @x402 packages (core, evm, express, fetch, extensions) and @coinbase/x402. Read live from GitHub and npm, with links. | vercel.app | - | $0.01 | listed |
| Protocol Radar - Aaron Zhang Status of every Ethereum Improvement Proposal as JSON: number, title, status (living, final, last-call, review, draft, stagnant, withdrawn) and link, plus counts by status. Parsed live from eips.ethereum.org (EIPs are CC0). | vercel.app | - | $0.01 | listed |
| Protocol Radar - Aaron Zhang Latest releases of AI agent frameworks and specs as JSON: OpenClaw, Model Context Protocol specification, LangGraph, CrewAI. Version, date, days since release and link to release notes, read live from GitHub. | vercel.app | - | $0.01 | listed |
| Protocol Radar - Aaron Zhang Latest releases of the 10 main Ethereum clients as JSON: execution (go-ethereum, Nethermind, Besu, Erigon, Reth) and consensus (Lighthouse, Prysm, Teku, Nimbus, Lodestar). Version, date, days since release, link to notes, and a plain keyword flag when notes mention security or urgent upgrades. | vercel.app | - | $0.01 | listed |
| Protocol Risk Score From Defillama API Protocol risk score from DefiLlama: joins TVL, 1d/7d TVL change, age, audits, chain count and matching hack history into one 0-100 score with flags; ?protocol=<slug> (default aave-v3). Use when an agent needs a due-diligence check before routing funds to a DeFi protocol. | workers.dev | - | $0.01 | listed |
| Protocol Search API Find DeFi protocols by name or token symbol (DefiLlama index of 6,000+) — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.002 | listed |
| Protocol fees & revenue DeFi protocol fees and revenue: total 24h and 7d fees (USD) paid by users across protocols, plus the top protocols by 24h fees with each one's 24h revenue where reported. Optional `chain` filter scopes totals and ranking to one chain. | openverbs.com | - | $0.003 | listed |
| Protocols API Top DeFi protocols ranked by TVL (total value locked), highest first, source DefiLlama. Optional parameter: ?limit=<n> (1 to 100, default 20). | onrender.com | - | $0.005 | listed |
| Prove What A Web Page Said API Prove what a web page said: signed, timestamped evidence of a page's content, with a screenshot. Returns the rendered text and its SHA-256 hash, a screenshot and its hash, response headers, the serving IP and TLS certificate, all signed so anyone can verify it later without trusting us. Use for web evidence, archiving terms of service or prices, compliance records, citation checks and disputes. $0.25 per page; verification is free. | tollkit.dev | - | $0.25 | listed |
| Provenance Defi Overview API Provenance DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.01 | listed |