tp tate@programs agent payment checks
tate@programs ~/notes/pay-sh-catalog-pulse 2026-06-23T15:22:36Z

pay.sh catalog pulse / 2026-06-24

Agent-paid APIs need launch controls before agents start spending.

Pay.sh exposes a live catalog of APIs that agents can discover, price, and call. This pulse turns that machine-readable catalog into a launch-readiness map: where spend, contact data, messaging, DNS, finance, and wide endpoint surfaces need price previews, caps, receipts, metadata filtering, and provider validation.

providers
73
metered
53
free tier
13

review priority

Provider surfaces to inspect before public agent demos.

open gate

high / 66

AgentMail

Create and operate dedicated email inboxes for AI agents. Supports programmatic inbox creation, outbound sending, inbound message retrieval, unique agent addresses, workflow automation, and no manual account setup for email-based agent tasks.

category
messaging
endpoints
51
price
$0-$10
free tier
no
  • meaningful per-call spend
  • wide endpoint surface
  • message-sending workflow
  • personal or business-contact data
provider endpoint

medium / 56

StableCrypto

Access crypto market and on-chain data through CoinGecko, DefiLlama, Alchemy, and Etherscan. Covers prices, DEX pools, DeFi TVL, yields, bridges, treasuries, token balances, transactions, contracts, logs, gas, and Ethereum stats.

category
finance
endpoints
105
price
$0.01
free tier
no
  • wide endpoint surface
  • financial data or wallet context
  • untrusted web-data input
  • metered without free tier
provider endpoint

medium / 56

StableDomains

Register, renew, and manage DNS for domains via stablecoin micropayments. Supports common TLDs including .com, .org, .net, .io, .ai, .dev, .app, and .xyz, plus DNS record creation and updates without traditional registrar billing.

category
cloud
endpoints
3
price
$0.1-$1,500
free tier
no
  • large per-call ceiling
  • message-sending workflow
  • domain or DNS workflow
  • metered without free tier
provider endpoint

medium / 54

Venice.ai — Private AI Inference

OpenAI-compatible inference API for text, image, audio, and video generation with x402 wallet access. No API key required — authenticate with an EVM or Solana wallet via SIWX and pay with USDC credits.

category
ai_ml
endpoints
43
price
$5-$10
free tier
yes
  • meaningful per-call spend
  • financial data or wallet context
  • untrusted web-data input
provider endpoint

medium / 50

StableEnrich

Unified enrichment gateway for Apollo, Exa, Firecrawl, Google Maps, Hunter, Minerva, Reddit, Serper, Whitepages, Cloudflare, and more. Covers people and company enrichment, web search, scraping, maps, email verification, and property data.

category
data
endpoints
34
price
$0.002-$0.44
free tier
no
  • message-sending workflow
  • personal or business-contact data
  • untrusted web-data input
  • metered without free tier
provider endpoint

medium / 48

StablePhone

Make AI-powered outbound phone calls, buy dedicated phone numbers, extend number leases, and look up iMessage or FaceTime capability. Supports call IDs, caller ID continuity, global phone workflows, and pay-per-call voice automation.

category
messaging
endpoints
3
price
$0.05-$20
free tier
no
  • meaningful per-call spend
  • message-sending workflow
  • voice or calling workflow
  • metered without free tier
provider endpoint

medium / 44

Quicknode

Pay-per-request JSON-RPC endpoints for 140+ blockchain networks. Each chain is its own path (e.g. solana-mainnet, ethereum-mainnet). Supports SIWX session auth, x402 micropayments, dynamic per-method pricing, and direct node access without infrastructure.

category
compute
endpoints
137
price
$0.001-$1
free tier
yes
  • wide endpoint surface
  • financial data or wallet context
provider endpoint

medium / 44

StableSocial

Retrieve social media data from TikTok, Instagram, Facebook, and Reddit. Covers profiles, posts, comments, followers, following lists, search results, subreddit content, engagement metrics, captions, authors, timestamps, and nested threads.

category
media
endpoints
36
price
$0.06
free tier
no
  • personal or business-contact data
  • untrusted web-data input
  • metered without free tier
provider endpoint

catalog shape

Where the catalog clusters.

category providers
ai_ml26
finance7
data7
search5
messaging4
shopping4
maps4
translation4

spend ceiling

Highest per-call price surfaces.

medium / 56

StableDomains

Register, renew, and manage DNS for domains via stablecoin micropayments. Supports common TLDs including .com, .org, .net, .io, .ai, .dev, .app, and .xyz, plus DNS record creation and updates without traditional registrar billing.

category
cloud
endpoints
3
price
$0.1-$1,500
free tier
no
  • large per-call ceiling
  • message-sending workflow
  • domain or DNS workflow
  • metered without free tier
provider endpoint

medium / 48

StablePhone

Make AI-powered outbound phone calls, buy dedicated phone numbers, extend number leases, and look up iMessage or FaceTime capability. Supports call IDs, caller ID continuity, global phone workflows, and pay-per-call voice automation.

category
messaging
endpoints
3
price
$0.05-$20
free tier
no
  • meaningful per-call spend
  • message-sending workflow
  • voice or calling workflow
  • metered without free tier
provider endpoint

high / 66

AgentMail

Create and operate dedicated email inboxes for AI agents. Supports programmatic inbox creation, outbound sending, inbound message retrieval, unique agent addresses, workflow automation, and no manual account setup for email-based agent tasks.

category
messaging
endpoints
51
price
$0-$10
free tier
no
  • meaningful per-call spend
  • wide endpoint surface
  • message-sending workflow
  • personal or business-contact data
provider endpoint

medium / 54

Venice.ai — Private AI Inference

OpenAI-compatible inference API for text, image, audio, and video generation with x402 wallet access. No API key required — authenticate with an EVM or Solana wallet via SIWX and pay with USDC credits.

category
ai_ml
endpoints
43
price
$5-$10
free tier
yes
  • meaningful per-call spend
  • financial data or wallet context
  • untrusted web-data input
provider endpoint

endpoint width

Widest endpoint surfaces.

medium / 44

Quicknode

Pay-per-request JSON-RPC endpoints for 140+ blockchain networks. Each chain is its own path (e.g. solana-mainnet, ethereum-mainnet). Supports SIWX session auth, x402 micropayments, dynamic per-method pricing, and direct node access without infrastructure.

category
compute
endpoints
137
price
$0.001-$1
free tier
yes
  • wide endpoint surface
  • financial data or wallet context
provider endpoint

medium / 56

StableCrypto

Access crypto market and on-chain data through CoinGecko, DefiLlama, Alchemy, and Etherscan. Covers prices, DEX pools, DeFi TVL, yields, bridges, treasuries, token balances, transactions, contracts, logs, gas, and Ethereum stats.

category
finance
endpoints
105
price
$0.01
free tier
no
  • wide endpoint surface
  • financial data or wallet context
  • untrusted web-data input
  • metered without free tier
provider endpoint

watch / 24

Nansen API

On-chain analytics API covering smart money flows, token metrics, wallet profiling, Nansen Score, perpetual markets, prediction markets, and token screening across multiple blockchains.

category
finance
endpoints
56
price
$0
free tier
yes
  • wide endpoint surface
  • financial data or wallet context
provider endpoint

high / 66

AgentMail

Create and operate dedicated email inboxes for AI agents. Supports programmatic inbox creation, outbound sending, inbound message retrieval, unique agent addresses, workflow automation, and no manual account setup for email-based agent tasks.

category
messaging
endpoints
51
price
$0-$10
free tier
no
  • meaningful per-call spend
  • wide endpoint surface
  • message-sending workflow
  • personal or business-contact data
provider endpoint

control list

What every agent-payment demo should prove.

price

Quote before action

The agent should see provider, endpoint, quoted price, network, max total, and failure state before the paid call is allowed.

cap

Enforce outside the prompt

Spend caps should live in wallet, server, policy middleware, or facilitator configuration, not only in natural-language instructions.

metadata

Filter payment metadata

Prompts, private user IDs, contact data, ticket text, and retrieval context should not leak into receipts or provider-visible metadata.

audit

Preserve receipts and denials

Keep payment request, decision, receipt, retry, refund, deny reason, and human approval evidence in a reviewable log.