x402-signature-service

signx402.com

E-signatures for AI agents: send one PDF to one email recipient for a simple electronic signature, track its status and download the signed PDF, for $0.50 USDC per request on Base via x402.

Crypto payment details

Payment protocol

x402

Networks

Base

Tokens

USDC

Typical price per call

$0.5 per call (check the provider for current pricing)

Example paid endpoint

https://signx402.com/v1/signature-requests

Listed in

x402scan

Category

Commerce & Real-World Actions · compare commerce & real-world actions

More tools on

Base

How we verified it

Unpaid POST /v1/signature-requests returned HTTP 402 on 2026-10-21 with x402 payment terms: x402 v2, exact, 500000 (0.50 USDC) on Base. Listed on x402scan. Homepage (mentions x402) fetched (HTTP 200). Last checked 2026-10-21.

• https://www.x402scan.com/server/3a2b7f6f-e177-47eb-b4bb-71c7ecbb9635
• https://signx402.com/

The description summarizes the provider's own site. YourAITools is not affiliated with x402-signature-service. Listing a tool is not an endorsement: check pricing and terms with the provider before paying.

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