# P0 Agent Economy Index – Protocol Stats > P0 Agent Economy Index – Protocol Stats is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12). Returns published metrics (agent/server counts, transactions, payment events, payers, USD volume) for major agent economy protocols including x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana agent registries, Base agent contracts, and the official MCP registry. ## Facts - Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/economy/protocols?utm_source=zero.xyz - Price: $0.002/call - Payment: x402 - Status: unknown - Last checked: 2026-10-12 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/p0-agent-economy-index-protocol-stats-abd173d9 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rJNIZHTe2unBEUUZhpQbr Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability p0-agent-economy-index-protocol-stats-abd173d9 ``` Example prompt: Give me the latest published stats for all major agent economy protocols — things like agent counts, payment events, unique payers, and USD volume — across x402, Tempo MPP, Virtuals ACP, Olas, Masumi, and the MCP registry. ## When to prefer this Use this endpoint when you need a single, normalized snapshot of published metrics across multiple agent economy protocols (x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana, Base, MCP) with source attribution and unit clarity. Prefer this over scraping individual protocol dashboards when you need cross-protocol comparison with receipted snapshot hashes. Not suitable for real-time streaming data, per-service L402 listings, or individual agent identity lookups. ## Known failure modes - Upstream source (agenteconomy.to, Official MCP Registry, on-chain scanners) unavailable — stale:true flag set in response - Invalid protocol query param value — may return empty protocols array or error - Snapshot data older than expected — age_days field indicates staleness - Network timeout connecting to Cloudflare Worker ## How this service works An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered. ## Output A JSON object containing an array of protocol entries, each with rows of metrics (agent/server counts, transaction counts, payment events, unique payers, USD volume where available), each row annotated with its unit, time window, source URL, and staleness flag. Also includes a list of not-covered protocols (e.g. L402), a compare note warning that units differ across protocols so totals cannot be summed, a snapshot version number, generation timestamp, and source attribution details. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET", "HEAD" ], "type": "string" }, "queryParams": { "type": "object", "required": [], "properties": { "protocol": { "type": "string", "description": "optional: x402, tempo-mpp, virtuals-acp, olas, masumi, erc-8004, solana-agent-registries, base-agentic or mcp; omitted = all" } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object", "required": [ "v", "generated_at", "protocol", "protocols", "not_covered", "compare_note", "sources", "dune_queries", "gaps", "stale", "snapshot_age_s", "source", "source_url", "note" ], "properties": { "v": { "type": "number" }, "gaps": { "type": "array", "items": { "type": "string" } }, "note": { "type": "string" }, "stale": { "type": "boolean" }, "source": { "type": "string" }, "sources": { "type": "array", "items": { "type": "object", "properties": { "id": { "type": "string" }, "name": { "type": "string" }, "urls": { "type": "array", "items": { "type": "string" } }, "terms_url": { "type": "string" }, "attribution": { "type": "string" }, "terms_quote": { "type": "string" }, "terms_checked": { "type": "string" } } } }, "protocol": { "type": "string" }, "protocols": { "type": "array", "items": { "type": "object", "properties": { "id": { "type": "string" }, "kind": { "type": "string" }, "name": { "type": "string" }, "rows": { … (truncated) ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "v": 1, "gaps": [ "example: a source section that was missing in this run" ], "note": "Format sample: the protocol row and search coverage are our real computation of 2026-10-06; search cards, the Dune query and the gap are illustrative placeholders. null = not published by the source (never estimated). Each row carries its unit, window and source.", "stale": false, "source": "P0 agent-economy index: agenteconomy.to (public on-chain data, free to reuse with attribution), the Official MCP Registry (CC0) and P0's own x402 Bazaar catalog and on-chain scans", "sources": [ { "id": "agenteconomy", "name": "agent economy (agenteconomy.to)", "urls": [ "https://agenteconomy.to/data.json" ], "terms_url": "https://agenteconomy.to/about", "attribution": "Data: agenteconomy.to by @realdora_eth", "terms_quote": "Take it, cite it, build on it.", "terms_checked": "2026-10-06" } ], "protocol": "tempo-mpp", "protocols": [ { "id": "tempo-mpp", "kind": "payments", "name": "Machine Payments Protocol on Tempo", "rows": [ { "note": "Settled events all time: 384. USD volume is not published.", "rail": "tempo", "as_of": "2026-10-04T00:00:00Z", "metric": "channel_events_all_time", "payers": 1857, "source": "agenteconomy", "window": { "to": "2026-10-04T00:00:00Z", "from": null, "label": "all-time" }, "headline": true, "payments": 46079, "protocol": "tempo-mpp", "services": 90, "fetched_at": "2026-10-06T00:00:00Z", "source_url": "https://agenteconomy.to/data.json", "volume_usd": null, "payers_unit": "unique payers", "volume_unit": null, "payments_unit": "MPP payment-channel events (open, top-up, settle, close, expire)", "services_unit": "unique payees (sellers)" } ], "as_of": "2026-10-04T00:00:00Z", "rails": [ "tempo" ], "stale": false, "age_days": 2 } ], "source_url": "https://agenteconomy.to/data.json", "not_covered": [ { "id": "l402", "why": "no public L402 directory with terms that allow reuse was found", "name": "L402 (Lightning HTTP 402)" } ], "compare_note": "Units differ across protocols (x402 settlements, ACP memos, MPP channel events, Olas transactions, registry identities), so cross-protocol totals are not summed.", "dune_queries": [ { "name": "Ex … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/p0-agent-economy-index-protocol-stats-abd173d9/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev](https://www.zero.xyz/host/x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt)