369 Meter — pay-per-call APIs for agents (x402)
RemoteAbout 369 Meter — pay-per-call APIs for agents (x402)
369 Meter provides four pay-per-call APIs for agents, covering text analysis, gaming hook scoring, English–Persian translation checks, and game metadata. Calls are paid through x402 in USDC on Base; its MCP adapter exposes the tools but returns payment requirements rather than unpaid results.
Key features
- 01Text statistics and keyword analysis
- 02Gaming hook scores from 0–100
- 03English–Persian translation QA
- 04Game metadata from RAWG
Use cases
- 01Analyze text structure and readability
- 02Evaluate gaming headlines or hooks
- 03Check English–Persian translations
- 04Retrieve game ratings and platforms
MCP support
A Python adapter exposes the four APIs as MCP tools over stdio or streamable HTTP. Tool calls return the gateway’s x402 payment requirements; payment and access to results take place through the REST routes.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://369yz.pythonanywhere.com/meter/mcpclaude mcp add --transport http 369369yz-collab-meter369 https://369yz.pythonanywhere.com/meter/mcp{"mcpServers":{"369369yz-collab-meter369":{"type":"http","url":"https://369yz.pythonanywhere.com/meter/mcp"}}}Open in Cursor{"servers":{"369369yz-collab-meter369":{"type":"http","url":"https://369yz.pythonanywhere.com/meter/mcp"}}}Open in VS Code{"mcpServers":{"369369yz-collab-meter369":{"type":"http","url":"https://369yz.pythonanywhere.com/meter/mcp"}}}{"mcpServers":{"369369yz-collab-meter369":{"serverUrl":"https://369yz.pythonanywhere.com/meter/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project README369 Meter — pay-per-call APIs for agents (x402)
Four pay-per-call APIs for agents, one rail: x402 (v1, "exact" scheme, USDC on Base), settling directly to the publisher's wallet. No accounts, no API keys, no checkout — call a route, get an HTTP 402 with payment requirements, pay, get the resource.
Live gateway: https://369yz.pythonanywhere.com/meter/
Health (free): https://369yz.pythonanywhere.com/meter/health
PayTo (Base): 0xA0A1ff293EF2FF051121674c8eAAd69570b25e6c
Facilitator: payai-public · every 402 declares the Bazaar discovery extension.
Services
| REST route | MCP tool | Service | Price/call |
|---|---|---|---|
POST /v1/text/analyze | text_analyze | TextIntel — deterministic text analysis (counts, readability, script mix, keywords) | $0.01 |
POST /v1/hook/score | hook_score | HookScore — gaming headline/hook scored 0–100 against the 369 team's hook rules | $0.01 |
POST /v1/translate/check | translate_check | TranslationCheck — EN↔FA translation QA score 0–100 | $0.02 |
POST /v1/game/facts | game_facts | GameFacts — live game metadata from RAWG (release, ratings, Metacritic, platforms, genres) | $0.03 |
How to pay (x402)
# 1. Call without payment -> HTTP 402 + x402 payment requirements
curl -s -X POST https://369yz.pythonanywhere.com/meter/v1/text/analyze \
-H 'Content-Type: application/json' -d '{"text":"your text"}'
# 2. Sign an EIP-3009 USDC authorization for the amount in
# accepts[0].maxAmountRequired and retry with the X-PAYMENT header.
# The resource is served only after the facilitator confirms settlement.
MCP
mcp_adapter.py (this repo, stdlib-only Python) exposes the same four
services as MCP tools for directory discovery:
- stdio:
python3 mcp_adapter.py - streamable HTTP: mount
applicationin any WSGI server (POST JSON-RPC).
tools/list and initialize are free. Because an MCP transport cannot
carry an X-PAYMENT header, tools/call performs the real gateway call
and returns the gateway's live 402 payment requirements as an MCP error
result — it never serves an unpaid resource. Pay over the x402 rail on the
REST route above.
Directory manifests in this repo: server.json (Official MCP Registry,
name io.github.369369yz-collab/meter369), glama.json (Glama claim),
openapi.json (the REST API spec, prices verified against the live 402s).
Also listed via
- api.market — the same REST API (
openapi.json); api.market auto-generates an MCP endpoint for listed APIs. - PayAPI Market — x402 directory (listed 2026-10-25; a $0.02 USDC canary payment from their verification has landed on-chain).
License
MIT — see LICENSE. The gateway service itself is operated by VeritasWorks;
this repo publishes the adapter and the directory manifests.
Comments
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