All projects on Base matching “signed”

One paid call on cm-kg.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-kg.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Safety Check (TAP Labs (made by TAP)): Token safety and security check for a token on Base or Solana, or a contract on Base, before you buy or swap. Looks for scam and rug pull warning signs: who can mint, freeze, blacklist, pause, tax or upgrade it, thin liquidity, a brand-new pool, big holders (Solana; Base tokens under 5 hours old), unverified code and scam-list matches (Base) and OFAC sanction

One paid call on sg-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://sg-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on agentic-coverage.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-coverage.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Give this API any text or binary data and it returns its fingerprint under whichever hash algorithms you choose - SHA-256, SHA-512, MD5, BLAKE2, CRC32 and more. It also signs data with a secret key (HMAC) and safely verifies whether an incoming signature matches, using a timing-safe comparison. Language models cannot hash: they emit a string of the right length and character set that is simply wro

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.

One paid call on cm-kg.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-kg.org/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Read official Base Uniswap V3 NFT and pool state at one canonical block hash. Reconcile exact token inventory and fee-growth checkpoints against optional reported raw amounts. Return signed discrepancies, reproducible inputs and uint128 accounting semantics. Recorded tokensOwed may include withdrawn principal, not only fees. Read-only; no USD valuation, trading, custody or profitability claim.

One paid call on cm-record.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-record.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict

Decode what an EVM payment authorization actually authorizes before signing.

Get tweet details with signed proof

Signed extractability score (0-100) + breakdown + fixes for a URL. Free preview: GET /extractability/preview Blocked or bad input returns 400; a failed fetch returns 502; you are never charged for an error.

Stratalize — Project Controls for construction schedules. Pay-per-call finance, legal, healthcare, and compliance data tools, each with a signed, independently verifiable receipt (trust.stratalize.com/verify). IMF World Economic Outlook macro composites — GDP growth, inflation, and current account balance by country group. Source: IMF WEO static composite, semi-annual update. Use when providing gl

Notarize any public web page or API response: fetches the URL server-side, archives the exact bytes, and returns a tamper-evident ed25519 attestation recording the final URL, UTC timestamp, HTTP status, content type, byte length and sha256 hash. Establishes provenance and a chain of custody for what a source said at a point in time, so the signed record can serve as the evidence layer in a later d

Datoka API: a portable signed commitment to a client-declared API exchange for response handoffs, archived decision inputs and change investigations. 0.002 USDC per receipt; offline verification is free. Keep original bytes locally. Does not prove provider origin or content truth. Retry with the same event, idempotency key and original payment authorization.

One paid call on hk-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://hk-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on nl-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://nl-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on uk-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://uk-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on ca-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ca-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Before hiring or paying an ERC-8004 agent, grade the controlling wallet's funding origins (CEX, bridge, mixer, organic) A-F. POST wallet_address; signed certificate + Celo on-chain anchor. $0.05 USDC.

One paid call on agentic-disclosure.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-disclosure.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on agentic-radar.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-radar.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on allooloo.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://allooloo.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on fr-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://fr-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Issue a signed read-only EVM integration-readiness report for a public address

Verify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, totals, percentages, dates, weekdays, time spans, unit conversions, and list counts; checks lengths the task asks for; flags placeholders and prompt injection; measures words, items, and JSON shape. Signed receipt, tier lite. For every requireme

One paid call on agentic-ask.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-ask.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on agentic-issuers.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-issuers.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on capitalmarketsknowledgegraph.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://capitalmarketsknowledgegraph.org/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.