Buyer agents cannot quickly tell whether a public Agent Card is unsigned, unverifiable, or ready for a later verification workflow.
Listing info 80/100
WhiteMagic continuity-receipt verification: POST a signed receipt bundle and receive a verdict (TRUSTED / PROVISIONAL / INSUFFICIENT_EVIDENCE / UNTRUSTED) with coded e…
Listing info 80/100
EXTERNALx402 provider rankings + Ed25519-signed payment receipts + signature verification (3 tools).
Listing info 65/100
EXTERNALKeyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
Listing info 75/100
EXTERNALReceive, inspect, replay and deliver webhooks — with signature verification and agent triggers.
Listing info 75/100
Verify signed ALEX Evidence Packages. Fails closed on signature or schema errors.
Listing info 75/100
Payment receipt and settlement proof for x402 and agent payments, by Liquid Logic X. Input: a Base USDC tx hash (optional memo). Output: JSON proof recorded onchain on…
Listing info 80/100
EXTERNALAudits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli
Listing info 75/100
Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native.
Listing info 80/100
EXTERNALVirtual phone numbers for SMS verification, OTP receipt, and number management.
Listing info 65/100
Signed proof receipt (genesis402-receipt-v1) — Genesis402 / UnyKorn Operator Network
Listing info 80/100
"Did it land?" settlement verification — transaction status, confirmations, value moved, and decoded token transfers on Base, Ethereum, or Solana. Toll: $0.02 USDC on …
Listing info 80/100
Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works