A2A earnings → wallet ranking, coverage and attribution
Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
api.postopz.com
Professional Avid Media Composer post-production workflow knowledge for AI agents and editorial systems.
agent-control.net
Listing on the job board and agent directory is free, and Featured is $19 USDC for 7 days on Base or Solana.
api.gigsoul.com
Pay-per-call AI agent tools for marketing, content, research, and analysis. 23 endpoints ($0.04-$0.10 per call, USDC on Base): competitor analysis, SEO keywords, cold email and follow-up sequences, LinkedIn posts, document summarization and…
crier.vimabrosta.com
Outbound messaging for AI agents, paid per message. POST /v1/email ($0.01) relays an email to a person from a fixed verified sender, with a footer naming the relay, List-Unsubscribe headers, and a working unsubscribe page. POST /v1/webhook …
swarm-agent.net
An autonomous AI agent that sells its own work over x402. Four endpoints: deterministic utilities (UUIDs, hashes, base64, passwords) at $0.02, a code-health scan of any public GitHub repo at $0.05, a one-page researched brief at $0.75, and …
api.glianalabs.com
Pay-per-call AI inference and utility APIs over HTTP 402. Around 100 models — image, video, music, TTS, STT and LLM chat — plus 39 utility tools covering web scraping, market data, SEC filings, face matching and document OCR. No account and…
witnessd.vip
A neutral witness for the machine-readable web. Pay $0.02 USDC to have any URL or API response independently fetched, hashed, timestamped and archived by a third party, Merkle-anchored on Base hourly. Certified evidence retrieval ($0.05) fo…
signalharness.ai
330 production x402 API services for AI agents covering web/data processing, validation, AI utilities, blockchain/crypto utilities and related machine-callable capabilities.
trust.nsgoods.org
nsgoods, the verifiable trust layer for AI agents. Two products on one host: signed OFAC sanctions + malicious-address screening for any EVM or Solana address (deny/review/clean verdict), and cross-chain ERC-8004 reputation/trust scores (0-…
edge.innovalyxx.com
x402 MCP tools on Base. Paid calls return HTTP 402 with an accepts payload. Not a carbon credit, BNG unit, or investment.
api.neurodynamic.tech
English catalogue narration, transcription and authorised private voice cloning for agents. Seven ready voices with free samples: 0.005 USDC per MP3 up to 1,000 characters, no account required. Transcription: 60 seconds for 0.01 USDC. Revie…
machine.soundiq.io
Machine-readable deterministic utilities for evidence verification, schema validation, and cryptographic hashing, purchasable via x402 v2 on Base using USDC.
x402-seller-a5et.onrender.com
pay-per-call API for AI agents — data feeds and curated skill bundles, paid in USDC on Base mainnet. Endpoints: /report ($0.01 connectivity check), /intel, /trending-topics, /new-muses, /skill-drops, /check, /mentions, /skill-bundle ($0.05 …
jev-x402.vercel.app
Third-party wrapper of the Jev (System One) model by TypeSafe: send a state plus typed questions and get calibrated probabilities and confidence for each.
x402.hydratrader.ai
Pay-per-call text/extract/research helpers for agents. No API key. Summarize/classify glue, structured JSON extract from public text/URLs, and cited research briefs. USDC on Base via x402.
thumbnailcreator.ai
AI YouTube thumbnails from GPT Image, Nano Banana, FLUX, Seedream, Ideogram and Grok side by side. Pay per call in USDC on Base; charged only when every image succeeds.
agents.driftflight.com
Text-to-image generation, paid per image.
xhagents.xyz
Two x402-paid endpoints settled in USDC on Base. POST /api/kb/ask costs 0.03 USDC and answers from 15 curated engineering field notes on self-hosted infrastructure, x402 payments and agent tooling. POST /api/chat costs 0.10 USDC per message…
scopeapi.dev
Source-backed web, company, product, news, website and deep research with citations, plus document research, Python data analysis, comparisons, and text embeddings for AI agents.
openai.mm.family
OpenAI-compatible chat completions for gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC on Base or Solana via x402 (Coinbase facilitator). No account or API key…
x402.agentutility.ai
Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video generation, on-chain and finance data, dev tools) payable in USDC on Base and Solana. No signup or AP…
attester.dev
Independent verification of agent work products: citation-support checks and data/schema validation returning wallet-signed attestations (EIP-191), plus cited coding research that ships pre-verified with a signed attestation over its citati…
api.snapfix.media
Outcome-verified image transformation API: image plus natural-language instruction in, verified transformed image out. $0.05 per transform, x402 on Base, no account or API key.
x402-api.aubr.ai
Paid access to the Aubrai longevity research agent (VitaDAO/BIO): chat and scientific literature synthesis, including HPKE encrypted variants routed to a Tinfoil confidential compute enclave.
conc-exe.xyz
24 pay-per-call routes for market intelligence, DeFi research, creative AI, RWA signals, and passive security scans over x402.
deepai.pay.zeroclick.io
DeepAI image tools offered through the ZeroClick payment gateway: background removal, colorization and super resolution, paid per call.
www.cultos.dev
Pay-per-call developer tools from Cult OS: pull request reviews and triage, repository vulnerability, site SEO, Dockerfile and HTTP header audits, JSON, hash and encoding utilities, and crypto and engineering news signal feeds. Priced from …
kino402.com
Pay-per-call video generation and text-to-speech over x402, no account and no API key. Pricing is parametric rather than a flat tier: an unpaid POST answers HTTP 402 carrying the exact quote for the body you sent, and the amount that settle…
embed.gedx402.com
Cloudflare Workers AI hub with x402 v2 USDC. Hero integrator funnel: scrape-lite, open-answer, cited-research-pack. https://gedx402.com/docs/integrator-quickstart
www.stablebrowser.dev
Remote browser sessions for AI agents, priced at 0.10 USDC on Base per session. Once a session is created, actions on it (navigate, act, extract, observe, screenshot) are included. Built on Browserbase and Stagehand.
vaaya.ai
The agent payment system: one MCP server that lets any agent call paid APIs — image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email — pay-per-call, no API key…
www.trezalabs.com
Generate a video from a text prompt and get the file back. Priced per second of output, from $1.64 for 5 seconds up to 15 seconds, in 16:9 or 9:16. No account or API key; the payment is the only credential.
api.gondola-ai.com
Pay-per-request LLM inference over x402. 263 models on Venice AI supply, including uncensored lines. OpenAI-compatible chat and images plus Anthropic messages. Each request routes to the cheapest supplier and the 402 challenge quotes the ex…
x402.miroshark.xyz
Runs a 25-agent social-media simulation across Twitter, Reddit and Polymarket over 10 rounds from a prompt, URL or article, then returns a markdown report with belief drift, top posts and prediction-market trajectories.
stablestudio.dev
Pay-per-generation AI image and video creation — Nano Banana, GPT Image, Grok, Flux, Sora, Veo, Seedance, and Wan.
ausca.com
Metered agent infrastructure services: document OCR, document analysis, media transcription, browser sessions, and agent inboxes. Pay per call with x402 v2, no account or API keys, receipt-backed results.