All projects on Solana matching “signed”

Solana swap execution for AI agents. Returns an UNSIGNED swap transaction on the best venue after fees, Jito tip and expected sandwich loss, with the plan, a simulation and the net-benefit arithmetic to verify before signing, plus the same Safe / Protect / Refuse verdict as /analyse. Needs taker: the mainnet wallet that signs and funds the trade. Never signs or holds keys. Full contract: GET /v1/a

Solana transaction preview BEFORE signing: simulate an unsigned or signed legacy/v0 transaction (address lookup tables resolved) and get SOL and SPL/Token-2022 balance changes for your wallet, programs invoked (known/unknown), fee estimate and red flags (token approvals, authority/owner changes, close-to-other, wallet reassign, >90% SOL loss, simulation failure). JSON body. Optional Pre-Sign Brief

Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.

Solana token risk screen with signed proof. Returns score 0-100, risk level, ALLOW/CHALLENGE/DENY gate decision, structured warnings, and an ed25519-signed receipt binding the payment settlement and result hash - independently verifiable at /verify without trusting us.

Wire-In Lookup — per-entity merchant-seat verdict. Pass ?ua=<counterparty-UA>; get ONE signed row: score (0.0-1.0 payment-reliability observed at this seat), confidence, verdict (settled | attempted_payment | probe_only | low_signal | unknown), observed counts, Ed25519 attestation. $0.01 USDC/entity on Base or Solana. Fold the score into your own counterparty model — wire it into your scoring loop

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

Paid trust intelligence (0.05 USDC). Solana subject wallet only. The Solana or Base accept you select returns the portable signed V7 receipt. Cheaper: GET /v1/intel/quick/9MkM5Ra48KFcSv9HDQ8sb3C3r5HjouEwGQ6sp1cx1vde is the 0.001 USDC score-only teaser for the same subject. Free POST /v1/intel/preflight before spending. Sponsored Solana accepts require a payment client that honors accepts[].extra.f

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the sign

Use this before an AI agent pays an x402 endpoint: give the endpoint URL, we read its own 402 quote, pull every payTo (all networks) and screen each against OFAC, UN, EU and UK lists. Signed per-payee and overall verdict: deny on an OFAC match, review on a UN/EU/UK match or an unavailable list, clean otherwise. $0.01 in USDC on Base or Solana. A bad, unreachable or non-x402 URL returns 400, 422 or

Fetch one public static HTML page after robots and public-address checks, then return bounded readable text, title, final URL and source links. Standard x402: POST the URL, sign the 402 and resend the same body. The 402 also returns an encrypted payment_request that pays for exactly the quoted fetch. No browser, login, summary or full-site crawl.

Email address check: verdict (deliverable_likely/risky/invalid) with reasons from syntax, MX/A records, disposable-provider list, role address, free provider, typo suggestion, SPF/DMARC/DKIM and domain age. Use when an agent is about to send to, sign up, or accept an email address and wants to avoid bounces, throwaway or mistyped addresses. One address per call; no SMTP mailbox probing.

Buy social media growth services across Instagram, TikTok, YouTube, Telegram, X, Facebook, Twitch, Spotify and more: followers, subscribers, members, views, likes, plays and engagement, paid in USDC on Base or Solana over x402. No GrowVib account, API key or prepaid balance is required; the wallet that signs the payment becomes the account, and any amount paid above the order's price stays as spen

Use this before signing a transaction for a Solana program: who can change its code (single key, Squads multisig with threshold and time lock, DAO, or immutable), when it last changed, verified build, security.txt. Instant, per request.

Read-only Solana financial-action firewall: decode and simulate an unsigned transaction, bind observed effects to declared intent and policy, and return a signed PASS/FAIL/REVIEW receipt