Professional Services

Add canonical Coinbase x402 V2 to your existing HTTP API. End-to-end: 402 response shape, EIP-3009 verification, broadcaster wallet, AFTA-style signed receipts, /.well-known/x402 manifest.

API publishers (10–1M monthly calls) who want to accept x402-native agent payments

• · Canonical /.well-known/x402.json with per-network domain hints (extra.name)
• · Worker (or equivalent) middleware handling X-PAYMENT requests
• · EIP-3009 signature verification against the correct USDC domain (mainnet vs Sepolia)
• · Broadcaster wallet setup, funding model, monitoring
• · AFTA-style signed-receipt issuance on every paid response
• · PR against your repo with full description and test coverage
• · 30-day post-merge debugging session included

TensorFeed runs its own canonical x402 V2 facilitator on Base mainnet. First-party experience with the exact-domain footgun (USDC.name is "USD Coin" on mainnet, "USDC" on Sepolia) and the gas-only broadcaster pattern. We ship the same code we run.

Get your /.well-known/agent-fair-trade.json + signed-receipt key spec to AFTA-Certified eligibility (6/6 on /api/afta-certify/check) in a single working session.

API publishers that want the AFTA badge for credibility with agent operators

• · Live walkthrough of your existing manifest + receipt key publication
• · Concrete edits to bring your manifest to 6/6 on the self-check
• · Drafted no_charge_guarantees with code-pointer attestations
• · Optional: receipt-signing key generation + canonical-form selection
• · Follow-up self-check pass before we close the engagement

AFTA was designed and originally implemented at TensorFeed. We wrote the standard, the schema, and the certification check.

Recurring 90-minute monthly working session on your team's x402/AFTA/agent-payments implementation. Drop in with current questions, leave with clear next steps.

Engineering teams shipping agent-payment infrastructure

• · 90-min live session per month, recorded for your team
• · Async access to a shared channel between sessions (response within 1 business day)
• · Quarterly written brief on agent-payment ecosystem changes relevant to your stack
• · Cancel anytime with 30 days notice

TF tracks agent-payment ecosystem changes daily as part of its product surface. A level of effort below a full-time hire and a meaningful step up from a one-off consultation.

Wire your AgentCore agents to pay third-party x402 endpoints (including TensorFeed) for live data, model inference, and tooling. Includes wallet provisioning, policy-based spending controls, and audit trail review.

Teams building AI agents on AWS Bedrock AgentCore

• · AgentCore Payments wallet provisioning with appropriate spend caps and policies
• · PaymentSession setup wired to your agent's task structure
• · Reference integration against TensorFeed premium endpoints (proves the loop end-to-end)
• · Two additional third-party x402 publisher integrations of your choosing
• · Compliance and audit-trail review (per-PaymentSession spend governance, CloudWatch span review)

AgentCore Payments launched 2026-05-07 with native x402 support. TensorFeed shipped a fully canonical x402 V2 facilitator the same evening (tx 0xe20c57d8aa6df...bd67) and is one of the first AgentCore-compatible publishers in production.