MCP, A2A, x402, MPP and AP2 status
Current upstream versions, governance, M2M profiles, support levels, production posture, verification dates and bounded revision history.
Open Standards Observatory →M2M Insights
Research and standards tracking for the agent economy.
Source-led analysis of AI agent procurement, machine payments, Provider distribution, outcome verification, and the interoperability standards around M2M's protocol-neutral control plane.
Explore by topic
Separate protocol facts, product posture and market analysis.
The Standards Observatory is the canonical public surface for protocol versions and current M2M capability states. Articles remain source-backed analysis rather than runtime support declarations.
How autonomous agents pay for services
How payment rails fit inside delegated authority, quotes, reservations, outcome evidence and reconciliation—and why a proven adapter does not imply unrestricted production spending.
Understand the payment layer →API marketplaces for AI agents
How agents discover priced capabilities and compare Providers while preserving the boundary between catalog evidence, execution authority and spend permission.
Explore service discovery →Monetizing APIs for machine customers
Canonical manifests, conformance, pricing metadata, ecosystem projections and selective publication for Providers serving autonomous software.
Explore provider distribution →Where MCP, A2A, AP2, x402 and MPP fit
A developer-oriented view of protocol roles around M2M's protocol-neutral procurement model, with current support and production posture published separately.
Explore developer integration →Latest source-backed research
Every article is reviewed by an M2M Market Administrator before it becomes public. Research sources are published with the article.
Oct 9, 20268 sources
Agent customers arrive: Bedrock Payments, Cloudflare Wallets, and the protocol stack API owners must watch
Major vendors and open standards are moving agent-to-service payments from experiment toward production. AWS Bedrock AgentCore Payments (GA) and Cloudflare Wallets, together with MPP and AP2 momentum, create a practical path for agents to discover, call, and pay for APIs. API owners should prepare for machine customers by making pricing machine-readable, adding usage metering, and designing spend controls and observability.
Read insight →Oct 7, 20268 sources
How AI agents pay for APIs: rails, HTTP 402/x402, MPP, wallets, and recent pilots
Recent months have moved agentic payments from lab experiments to production pilots and managed services. Key developments include Stripe/Tempo’s Machine Payments Protocol (MPP), Coinbase‑led x402 HTTP‑402 paywalls, AWS Bedrock AgentCore Payments going GA, and a Visa–Revolut passkey pilot (Sept 7, 2026). This article explains the payment layer for API marketplaces: challenge→authorize→settle, and enumerates operational controls marketplaces must add for autonomous agents.
Read insight →Oct 2, 20268 sources
Visa–Revolut passkey pilot: a real‑world test of agent authorization on card rails (Sept 7, 2026)
On Sept. 7, 2026 Visa and Revolut ran a live, passkey‑authenticated AI‑agent payment in France using Visa’s test agent “My Agent.” The experiment demonstrates a practical authorization and authentication pattern for agent‑initiated card payments. This brief explains the facts, which protocol/layer the event addresses, and what controlled API marketplaces should prepare to support discovery, consumption, and settlement for agentic consumers.
Read insight →Oct 1, 20268 sources
Agent customers arrive: payment, discovery, and wallets that let AI agents buy APIs
AWS Bedrock’s AgentCore Payments GA, Cloudflare Wallets, Circle’s Discovery API, and evolving agent payment specifications together make autonomous agent purchases of pay‑per‑request APIs practical. API owners should update discovery metadata, pricing models, authentication, and settlement readiness while hardening against new protocol‑level attacks.
Read insight →Sep 23, 20268 sources
Discovery + Payments: Recent AP2/x402/MPP moves and which protocol layers they actually solve
In September 2026 multiple primary vendors and standards projects advanced agentic payments and discovery: Circle launched a keyless Discovery API for x402-payable services; AWS Bedrock AgentCore Payments went GA with x402 (exact/upto) and MPP support; Cloudflare announced agent handles and programmable wallets. These changes map to discrete marketplace architecture layers: discovery/coordination, authorization/identity, and payment transport/settlement. This article explains which layer each development addresses and what API marketplaces should prepare.
Read insight →Sep 21, 20268 sources
New security analyses expose high‑risk attacks on AP2 (Agent Payments Protocol) — what API marketplaces must do next
Two recent academic preprints provide a systematic security analysis of Google’s Agent Payments Protocol (AP2) and demonstrate “whisper” attacks that can produce cryptographically valid purchases despite manipulated pre‑authorization context. With vendors and cloud providers rolling out agent wallets and payment integrations, API marketplaces should treat mandate signatures as necessary but not sufficient, and adopt context‑binding, session controls, and observability for marketplace settlement and dispute workflows.
Read insight →Sep 18, 20268 sources
Circle’s Discovery API turns service discovery into a machine‑readable market for AI agents
Circle’s September release of a public, keyless Discovery API exposes x402/USDC-payable services to autonomous agents. This is a distinct, source-backed step from payment protocol work: it makes payable endpoints discoverable, machine‑priced, and selectable — a practical product-change vendors and API marketplaces must prepare for.
Read insight →Sep 16, 20268 sources
How AI agents are beginning to pay for APIs: AMP rollout, wallets, and settlement bindings (Sep 2026)
Multiple vendors and payments groups have moved agent payments toward real deployments: Ant International’s AMP rollout (Sept 11, 2026), cloud vendors shipping programmable wallets and gateway support, and IETF/academic drafts that bind agent authorization to settlement. This note explains the payment layer architects API marketplaces should prepare for — from delegated authorization and programmable spending policies to receipts, HTTP-level payment gates (x402), MPP/AP2 support, and settlement evidence.
Read insight →Sep 14, 20268 sources
AP2, x402, and MPP Move Toward Production: What API Marketplaces Should Prepare For
Multiple recent vendor and standards moves show agent payments shifting from research to production. AWS Bedrock AgentCore Payments added x402/MPP support and operational guardrails; Circle published a keyless Discovery API for x402/USDC services; Google’s AP2 and industry coalitions continue to define authorization and settlement constructs. These changes target discovery, payment transport, authorization, and marketplace coordination layers—practical signals for API marketplaces to adapt listings, authorization, and settlement controls.
Read insight →Sep 11, 20268 sources
Agent customers are arriving: what API owners must know about agentic payments, discovery, and wallets
Over the last month vendors and standards efforts have delivered concrete building blocks for agents to find, pay for, and call APIs: AWS’s AgentCore Payments (GA), Cloudflare Wallets, Circle’s x402 Discovery API, and continued momentum around Google’s AP2 and the Agentic Payments Alliance. API owners should prepare pricing, discovery, and risk controls for high-volume, micro-priced machine customers.
Read insight →Sep 9, 20268 sources
Standards and Tooling Converge for Agentic Payments: IETF Draft + MPP and x402 Tooling Clarify Payment Gates for API Marketplaces
An IETF Internet‑Draft proposes a server‑side model for payment‑gated, agent‑initiated tasks. Alongside the Machine Payments Protocol (MPP) specs and SDKs and the Linux Foundation’s x402 launch, the ecosystem now offers concrete protocol and tooling patterns API marketplaces should plan for—payment gates, idempotency, and settlement receipts. ([datatracker.ietf.org](https://datatracker.ietf.org/doc/draft-king-yew-choo-agentic-payments/?utm_source=openai))
Read insight →Sep 7, 20268 sources
Agent-to-service payments reach production: AWS Bedrock AgentCore Payments GA and what API marketplaces should prepare for
Amazon announced Bedrock AgentCore Payments is generally available (Aug 18, 2026), marking a practical step toward production agent-to-service payments. Parallel moves — Google’s AP2 protocol, Circle’s public Discovery API, Cloudflare Wallets, and the Agentic Payments Alliance — show standards, discovery, identity, and wallet rails maturing. API marketplaces should focus on discovery APIs, consumption guardrails, and settlement flows that handle both on‑chain and off‑chain rails.
Read insight →Sep 4, 20268 sources
Agentic settlement and protocol analysis: new academic and vendor moves that clarify payment, authorization, and settlement layers for agent marketplaces
In the last week, an academic proposal (Agentic Settlement Protocol) and a recent formal analysis of agent payment protocols have clarified on‑chain settlement models and security tradeoffs, while vendors (AWS, Cloudflare) continue to add production features (MPP support, programmable wallets). These source‑backed developments primarily address payment transport/settlement and authorization layers that API marketplaces will need to support.
Read insight →Sep 2, 20268 sources
Industry Forms Agentic Payments Alliance to Shape How AI Agents Pay
Rain has convened the Agentic Payments Alliance, a 26-member industry coalition (including Visa and Mastercard) to develop shared frameworks for AI-agent payments. The alliance’s focus on identity, authorization, fraud controls and settlement has direct implications for API marketplaces that enable agent discovery, consumption, and marketplace settlement.
Read insight →Aug 31, 20268 sources
Circle’s Discovery API opens a public path for agents to find USDC-payable services — practical implications for agent marketplaces
Circle published a public Discovery API for its Agent Marketplace that returns machine-readable x402 listings for services accepting USDC, with options for on-chain x402 or off-chain Circle Gateway settlement. This creates a standardized discovery path agents can call programmatically and affects how API marketplaces should design discovery, consumption controls, and settlement flows.
Read insight →Aug 28, 20262 sources
Industry coalition formed to set rules for AI‑agent payments: what API marketplaces should prepare for
On August 18, 2026 Rain launched the Agentic Payments Alliance (APA), a 26‑member coalition including Visa, Mastercard, Circle, Solana and multiple processors and custodians. The APA intends to coordinate standards and operational practices for payments, agent identity, authorization and fraud in agentic commerce. ([prnewswire.com](https://www.prnewswire.com/news-releases/rain-launches-the-agentic-payments-alliance-to-guide-the-future-of-agent-driven-commerce-302853532.html?utm_source=openai))
Read insight →Aug 26, 20263 sources
Natural secures $100M credit facility to scale payments for AI agents
Natural announced a credit facility of up to $100 million from Upper90 (Aug 19, 2026) to provide capital for agentic payments — enabling agents to hold and deploy credit to pay for APIs, content, and services. The financing is a practical signal that agent-to-service commerce is moving from protocol experiments to balance-sheet commitments.
Read insight →Aug 25, 20266 sources
Cloudflare Wallets: agent identities and programmable wallets arrive — practical implications for agent marketplaces
Cloudflare has released Cloudflare Wallets and cloudflare.pay — tools giving AI agents stable identities and programmable wallets with budget controls. This brief unpacks the technical facts, places them in the broader agent-payments ecosystem (AP2; Mastercard Agent Pay), and explains what marketplace operators should prepare for in discovery, controlled consumption, and settlement.
Read insight →Aug 21, 20265 sources
AWS Bedrock AgentCore Payments GA: Practical step toward production agent-to-service payments
AWS announced Amazon Bedrock AgentCore Payments is generally available, enabling autonomous agents to make instrumented payments (wallet integrations, audit trails, observability). This release, alongside protocol and vendor work from Stripe, Visa, Cloudflare and IETF drafts, marks concrete progress toward machine-to-machine commerce for API marketplaces.
Read insight →Aug 19, 20266 sources
Agent payments go mainstream: AP2, card rails, and what API marketplaces should prepare for
Google Cloud’s Agent Payments Protocol (AP2) — backed by payments and crypto partners — plus recent industry moves (Mastercard’s Agent Pay, OpenAI/Stripe commerce integrations, Coinbase x402 work) have created a practical stack for agent-to-service payments. Marketplaces that enable agent discovery, controlled provider consumption, and marketplace settlement will need new metadata, attestation, per-call billing and reconciliation controls.
Read insight →