219 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Get a checked rational bracket for a degree 1-8 polynomial root. Bisect a sign-changing rational bracket for at most 64 iterations; return a certified bracket or exact rational root. No arbitrary code, all-roots or uniqu...
Check up to 32 JSON argument values against a closed, declared scalar tool contract: types, required fields, code-point length and exact safe-integer bounds. Rounded fractions/underflow are not integers. Returns unknown...
Reconcile molarity, mass concentration and fractions when required density and composition inputs exist. Flag missing assumptions; no invented material properties.
Validate exact UTF-8 SHA-256 hashes for up to 64 public or synthetic passages. No Unicode normalization, source authentication, or semantic validation.
Inspect one supplied x402-v2 exact-payment challenge against an explicit expected HTTPS resource, EVM CAIP-2 network, asset, payee and maximum price. Checks both URL declarations, structure and payment-policy fields only...
Count DNA/RNA bases and ambiguities and calculate GC fraction on called bases only. Refuses mixed DNA/RNA alphabets; no sequence design or clinical inference.
Find literal query evidence across bounded public news sources with timestamps
Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.
Calculate stock and working concentrations from supplied quantities with unit and feasibility checks. For arithmetic verification; no chemical-handling or safety guidance.
Bind consistent protocol receipt commitments into one auditable bundle
Use when an agent needs x402 market totals. Returns market size: sellers listed by source and evidence (how many P0 has read itself), plus 30-day market totals from x402stats (CC BY 4.0), with attribution and a receipt
Parse a bounded formula with parentheses using a pinned 30-element average-mass table. Return composition and molar mass; no isotopes, purity or safety claim.
Observe an MPL Core asset, its 014 Registry binding, and DAS-reported AppData. This does not prove identity or claim truth.
Base Sepolia testnet only. One bounded public URL evidence packet: title, metadata, JSON-LD, text extract, links, timestamp and SHA-256. No JavaScript rendering, credentials or private-network access. 0.005 test USDC; no...
Extract a public web page into timestamped, normalized evidence.
Read recent in-memory FreshProof snapshots for a watch ID
Cited, conflict-aware JSON intelligence brief for current-market, company, technology and regulatory questions. Returns source-bound findings, freshness, conflicts, validation evidence and a verifiable receipt.
Inspect npm package creation, releases, maintainers, and lifecycle-script chronology for dependency trust and AI-agent supply-chain screening.
Paid machine intelligence with Evidence, provenance, PRAMAgraph structural evaluation, Decision, Ticket and capability-bound Consumer Result.
Bounded evidence audit for a public incident; free citable report linked
Browser screenshot, rendered HTML, metadata, PDF and signed artifact receipt. Service-clock time; no independent timestamp or completeness guarantee. Exact-host loading; other-host assets and redirects excluded.
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no...
Capture point-in-time URL facts, response headers, a text excerpt, and a SHA-256 content hash for research and verification.
Is this URL alive? Real fetch with redirect chain, TLS, latency and body hash, returned as signed evidence.