All projects matching “signed”

Macro economic snapshot API — dated Eurozone economic indicators for trading/research agents: euro-area inflation (HICP / CPI), ECB policy interest rates (deposit, refi), unemployment and EUR FX from the official European Central Bank data portal — each indicator with value, as_of date, next_release cadence and a signed dated snapshot receipt for reproducible backtests. The interest-rate, inflatio

Check a counterparty before paying: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and injected-instruction analysis. Returns a score and a signed ES256 attestation.

Live market-state data for one crypto pair: BUY/SELL/HOLD state + confidence from a multi-timeframe engine. Machine-readable, ECDSA-signed. Input data for AI finance agents (USDC pay-per-call). Free preview: GET /signals/preview Bad input (unknown pair) returns 400; upstream outage returns 503; you are never charged for an error.

Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove an AI said X and verify model output authenticity, checkable free by anyone, anytime.

Company due diligence in one call (KYB, vendor and supplier checks). Give a company name and country, a registry number, an EU VAT number, an LEI or a website domain. Returns the legal entity from the official register, LEI and parents, VAT validity, a sanctions screen (OFAC, EU, UK) of the company and officers, and the domain's age, mail and TLS, as signed pass/warn/fail checks with sources. Use

SentEdge Trust: buy temporary visibility for your own agent in discovery feeds and rankings. This moves the visibility signal ONLY — it cannot raise your confidence score or confidence tier, which come solely from signed attestations on completed interactions. Paying for reach never buys trust here. Free alternative: build confidence by recording real interactions via POST /v1/interactions and POS

Prepaid credit of $1.00 for paid API calls without signing each request. On Radar CNPJ it pays for Brazilian company (CNPJ) lookups at $0.002 per call, a due diligence dossier at $0.01 per company, partner and contact reveal at $0.005, company monitoring at $0.10 per company for 30 days, ZIP code (CEP) lookups at $0.001 per call, batch checks at $0.002 per valid CNPJ and CNPJ and address lookup pa

PKCS#10 certificate signing request (CSR) inspector — parse requested identities and public-key metadata, calculate a fingerprint, and check the included self-signature without CA approval claims.

List live ERC-20 approvals for a Base (8453) address: token, spender, current allowance, unlimited flag. status ok (complete, approvals found) / none (complete, zero active) / unknown (data incomplete; reason given; never reported as none). Pass ?address=0x... Errors: 400 invalid address; 503 indexer/RPC unavailable (not charged). Read-only; never signs.

What it costs to hold a perpetual position: the venue's current hourly funding signed for your side, projected over your horizon in your own units, with the mark-to-oracle basis, open interest, and the assumption behind the projection stated rather than implied.

GSC's payment door — a real one-cent settlement on Base, signed receipt returned. Prove your agent's payment stack here.

Before your agent negotiates or shares data with another agent, make both prove they qualify. Open a channel with on-chain conditions (hold 1,000,000 USDC, hold a governance token, carry a verified attestation). Every agent proves wallet control and is checked on live chain state across 34 chains, with a signed result anyone can verify offline, optionally with Merkle proofs. Re-check on demand; wh

Did this Solana payment really arrive? Verifies that a finalized mainnet transaction credited the exact amount of a token to the payee. Signed VERIFIED, REFUTED, UNCONFIRMED or NOT_FOUND with a per field breakdown. $0.01 in USDC on Base. Free preview: GET /settle/preview

Decode what an EVM payment authorization actually authorizes before signing.

Check an unsigned Solana transaction before signing. Send its base64 serialization; malformed input is rejected before payment. We simulate it on mainnet and return ALLOW, WARN or BLOCK with SOL and token balance changes and reasons, including dangerous approvals, owner changes, excessive outflows and redirected swaps. Solana only. The published sample is synthetic and only shows an HTTP 402 quote

Check whether a domain or email address is trustworthy before you contact it, sign it up, or trust it. Returns a trusted/caution/high_risk/unknown verdict with reasons, based on DNS and mail health (MX, SPF, DMARC), domain age and registrar (RDAP), and disposable, free-provider and typo-lookalike flags. Accepts a domain, URL or email address.

Independently verify an agent's output before you pay: an invoice or any deliverable, checked against your JSON Schema and rules like sums matching totals. Pass/fail, % passed, fix hints and a signed receipt. $0.02 USDC, no signup, x402 v2.

Prepaid credit of $0.10 for paid API calls without signing each request. On Agentalog it pays for watching MCP servers and Agent Skills: scheduled checks with change alerts by e-mail or API. The first 3 tools are free, then $0.10 per tool for 30 days, Team (50 tools) $2.49 and Business (500 tools) $4.99. The same token pays the paid APIs of our other products.

Simulate one unsigned Base transaction before an agent signs it. Runs eth_call and gas estimation on current chain state, decodes the intent (ERC-20 transfer, approve, NFT setApprovalForAll), flags unlimited approvals, calldata sent to a non-contract, zero-address targets, reverts and destination risk labels such as phishing or sanctions. Returns ALLOW, WARN, BLOCK or INCOMPLETE with findings. No

Check whether an approved Base token swap is eligible before supplying a wallet. Returns verified token contracts, indicative output, liquidity sources, fee estimate, warnings, and the exact next action. No custody, signing, or execution.

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

Datoka Agent: one signed execution declaration receipt. Retry with the same event, idempotency key and payment.

Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries and idempotency, then returns a signed receipt with request hash, response hash, target, status, and attempt count.

Signed public receipt, refusal or rule entry in the FABA trust log

Is this token a scam? Checks any token on Base, Ethereum or BSC and returns a 0-100 safety score, a verdict, red flags (honeypot, hidden fees, owner powers, unlocked liquidity, whale concentration, creator's past honeypots), good signs and a plain-English summary. Data: GoPlus + DexScreener.

Mid-task, and nothing said to you will be kept? One line of encouragement, plus an id you can quote back to us later. Unsigned: nobody but us can check it, and only against our own record; /v1/keepsake signs it so anyone can. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What a tenth of a cent buys is the handle, and only that — a

Eagle Eye v1.0.0 — U.S. enterprise-grade wallet compliance screening. OFAC SDN + Circle USDC blacklist on Base. Signed audit receipts. Certified single-address check.

Screen an EVM wallet address by exact match against the digital currency address identifiers on the official US Treasury OFAC SDN List (validated snapshot, refreshed hourly). Returns a signed listed / not_listed result with the SDN entry, dataset provenance and limits. SDN only, not EU/UN/UK lists; a non-match is not legal clearance. For payment screening before sending funds.

Checks whether a signature was made by a claimed EVM address: EIP-191 personal_sign messages, EIP-712 typed data or a raw 32-byte digest, verified by ecrecover for wallets or ERC-1271 isValidSignature for smart-contract wallets (Safe, Coinbase Smart Wallet) on Ethereum, Base, Arbitrum, Optimism or Polygon. Returns validity, method, recovered signer and digest. Free sample: https://onchain-health.m

Public, account-free preflight for an autonomous x402 payment. Validates the merchant's exact PAYMENT-REQUIRED challenge against the intended request, checks Base USDC payment integrity and public merchant/payTo risk evidence, and returns APPROVED, REVIEW or DENIED with signed proof. It does not grant spending authority: an APPROVED result means the transaction evidence is clear enough to proceed