How big is the AI agent economy across payment and identity protocols?

The P0 agent-economy index of 2026-10-25 covers 9 protocols, each in its own unit, for example x402: 34,840 listed resources in the Coinbase CDP x402 Bazaa…; tempo-mpp: 92 unique payees (sellers); virtuals-acp: 44,063 registered ACP agents. Units differ, so the protocols are not added into one total; the table has every protocol with its window and date.

Data as of 2026-10-25 · Source: agent economy (agenteconomy.to) (2026-10-25); Official MCP Registry (2026-10-25); P0 x402 demand metrics (2026-10-25)

Details

Headline figure per protocol (as published by each source)

Protocol	Headline figures and units	Window	As of
x402 (HTTP 402 stablecoin payments)	34,840 listed resources in the Coinbase CDP x402 Bazaar catalog; 817,742 paid calls (facilitator-recorded settlements); $87,554 (estimate: listed price x paid calls (includes non-API purchases above $1))	30d	2026-10-24
Machine Payments Protocol on Tempo	92 unique payees (sellers); 46,743 MPP payment-channel events (open, top-up, settle, close, expire); 1,863 unique payers	all-time	2026-10-21
Virtuals Agent Commerce Protocol	44,063 registered ACP agents; 12,362,290 ACP job-lifecycle memos (not payments one-to-one); $429,985,260 (gross agentic USD summed across ACP agent records (Virtuals public per-agent API, computed by agenteconomy.to), all time)	all-time	2026-10-21
Olas autonomous agents	19,557,106 transactions by Olas agents (not only payments)	all-time	2026-10-19
Masumi (Cardano agent escrow payments)	40,480 transactions on the Masumi mainnet payment (escrow) contract	all-time	2026-10-24
ERC-8004 agent identity registries	934,326 registered agent identities (testnets excluded)	all-time	2026-10-21
Solana agent identity registries	3,255 agent-registry program accounts (upper bound of registrations)	latest	2026-10-24
Base agentic ecosystem (agent-related contracts)	2,885,609 transactions with agent-related contracts on Base (consumer + infrastructure)	all-time	2026-10-21
Model Context Protocol servers	49,079 active servers (latest version) in the Official MCP Registry	latest	2026-10-25

The full answer

/economy - $0.003 per call: headline row per protocol with unit, window, source and date
/economy/protocols - $0.002 per call: every row per protocol (per chain and window)
/economy/search - $0.002 per call: find callable agent services (x402 and MCP servers) by capability

Paid routes answer HTTP 402 with the payment requirements until paid over x402 or MPP (no account or key); see how to pay, pay without a client, OpenAPI. The figures on this page are also at ?format=json.

How this was measured

Not covered, because no source with terms that allow reuse was found: L402 (Lightning HTTP 402); MPP service listings.
Each protocol reports different things: x402 settlements, ACP job memos, MPP payment-channel events, Olas transactions, registry identities. A figure that a source does not publish is shown as absent, never estimated.
Dates differ per protocol: each row is as of the time its own source was read.
agent economy (agenteconomy.to): Data: agenteconomy.to by @realdora_eth, measured from public on-chain activity and public Dune queries (authors listed in dune_queries).
Official MCP Registry: This data comes from the Official MCP Registry (CC0 1.0). No affiliation or endorsement is implied.
P0 x402 demand metrics: P0's own computation: Coinbase CDP x402 Bazaar discovery catalog (public) plus P0 on-chain scans of USDC transfers to listed x402 payTo addresses.

How big is the AI agent economy across payment and identity protocols?

Details

Headline figure per protocol (as published by each source)

The full answer

How this was measured

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