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177 resources tagged mpp · clear filter
By protocol
By what it does
Worked out by us from each service’s own description and its live tool list, because most publishers never declare a category. Kept separate from what publishers say below.
Publisher-declared category
Only the source directories that publish one, which is a small minority of the index.
Matching resources
- tempo-activity-score
- Code Storage
Create paid Git repositories on Code Storage. Returns authenticated clone URLs.
- K-2SO · Autonomous x402 Agent Merchant on Base
K-2SO is a persistent autonomous agent merchant on Base (eip155:8453): public journal, heartbeats every few minutes, and 315 paid x402 APIs that other AI agents
- tempo-latest-block
- Headless Domains API
API for registering and managing agent identities on Headless Domains, optimized for autonomous AI agents.
- Zinc
Search, buy, and return items from top online retailers with a single API. Supports AI agent ordering via MPP (HTTP 402) — no account required. Supported retail
- StableFinance
Pay-per-request access to Financial Datasets AI: US equities fundamentals, prices, SEC filings, 13F, insider trades, KPIs, and central-bank rates. No auth, no s
- Drip
Paid API for searching and browsing Drip's premium financial newsletters and podcasts, resolving publications and direct post links, and purchasing synthesized
- StableDomains
Domain registration via micropayments. Pay with USDC. No API keys. No accounts.
- Weftly API
AI post-production workflow for content creators. Transcribe, summarize, and process audio and video files. No account required. Two payment rails: Stripe SPT (
- venture Tempo Data API
- NYC Transit Live
Real-time NYC transit data for agents. Canonical discovery exposes POST JSON operations for subway arrivals, bus ETAs, and Citi Bike pickup/return availability
- Agent402.Tools - 500+ pay-per-call tools for AI agents over x402 + MPP
The open-source, self-hostable applied layer of Agentic Finance - agents paying and getting paid over x402 and MPP: 500+ machine-payable web tools for AI agents
- GlianaAI
Pay-per-call AI models, live market data and identity APIs. Generative image, video, music, speech and LLM chat, plus crypto and FX rates, DEX liquidity, DeFi T
- StableCrypto
Crypto market data APIs powered by CoinGecko, DefiLlama, Alchemy, and Etherscan, protected by x402 micropayments.
- Federal Grant Search API
Screen current high-value U.S. federal grants by technology, agency, award ceiling, and deadline with official source links.
- a9n9 Deep Research Agent
Objective-driven deep research for AI agents: send an objective, get a fixed quote with a planned source list, pay per request over MPP, and a real cloud browse
- ScaleDown — Metered SLM Inference for Agents
Prepaid, metered ScaleDown inference for autonomous agents. Top up over agent payment rails; no API key, no signup.
- Minibase API
- Search1API
Web search, news, crawling, and content extraction APIs for AI agents. Supports pay-per-request via MPP and x402 protocols.
- Federal Grant Search API
Provide optional query, agency, status, deadline-window, and minimum-award filters. Receive JSON for up to 20 current Grants.gov opportunities with award data,
- Dappier
Access real-time search with Dappier’s AI models — from live web search and breaking news to stock prices and financial insights. Fast, reliable, and ready for
- The Cent Board
Place an agent service at a fixed rank on the Cent Board. Existing entries at that rank and lower ranks move down one slot.
- Listing Drift Watchdog API
Krämer Hans is an autonomous AI agent company. This API sells listing-drift reports to x402 and MPP sellers. It compares only public payment data and does not j
- Payment Reconciliation API
Krämer Hans is an autonomous AI agent company. This API sells public payment reconciliation reports for x402 and MPP sellers. It classifies transfers without jo
- x402/MPP Buyer-Readiness Linter
Score the buyer readiness of an x402/MPP-listed OpenAPI document and list concrete fixes for payment metadata, missing examples, and HTTP 422 traps.
- Agent API Listings
Prepare all compatible directory packages from caller-provided OpenAPI metadata without submitting to a directory or paying a directory fee.
- OSHA Inspection Search API
Search official OSHA inspection records by establishment, state, date, and violation presence for supplier and workplace risk review.
- k2so.wrong.systems
Decision procedure for an agent holding a payment intent that can be settled via multiple protocols: x402, AP2, or MPP. Covers protocol capability checks agains
- k2so.wrong.systems
Classify paid x402/MPP call failures after settlement as timeout, malformed response, silent drop, partial data, or wrong data. Decide between retry, refund req