tp tate@programs agent payment checks
tate@programs ~/notes/pay-sh-catalog-pulse 2026-07-10T17:17:35Z

pay.sh catalog pulse / 2026-07-11

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
70
metered
58
free tier
18

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

Generative Language API (Gemini)

Use Google Gemini models for text generation, multimodal image/audio/video understanding, chat, embeddings, code generation, JSON output, function calling, cached context, file search, grounding with Google Search, and fine-tuned models.

category
ai_ml
endpoints
11
price
$0-$138
free tier
yes
  • large per-call ceiling
  • voice or calling workflow
  • untrusted web-data input
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 / 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

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
60
price
$0.01-$7.5
free tier
no
  • wide endpoint surface
  • financial data or wallet context
  • metered without free tier
provider endpoint

medium / 44

Vybe Solana Analytics API (x402)

Solana on-chain analytics — token prices, top holders, wallet PnL, DEX trades, transfers, Pyth oracles. Pay-per-call USDC on Solana or Base; no API key.

category
finance
endpoints
46
price
$0.01-$0.03
free tier
no
  • voice or calling workflow
  • financial data or wallet context
  • metered without free tier
provider endpoint

medium / 44

Nyne AI

Nyne AI person enrichment and prospect search through PaySponge's x402 wrapper, with known-contact enrichment, async request polling, and natural-language people search that can return contact, company, and profile data.

category
data
endpoints
3
price
$0-$0.02
free tier
no
  • message-sending workflow
  • voice or calling workflow
  • personal or business-contact data
  • untrusted web-data input
provider endpoint

medium / 44

Textbelt SMS API

Send outbound SMS to supported-country phone numbers and check delivery status through PaySponge's x402-wrapped Textbelt service. Supports optional sender metadata, reply webhooks, and webhook data passthrough.

category
messaging
endpoints
2
price
$0-$0.02
free tier
no
  • message-sending workflow
  • voice or calling workflow
  • financial data or wallet context
  • untrusted web-data input
provider endpoint

catalog shape

Where the catalog clusters.

category providers
ai_ml26
finance8
data7
search6
shopping4
maps4
translation4
messaging2

spend ceiling

Highest per-call price surfaces.

medium / 56

Generative Language API (Gemini)

Use Google Gemini models for text generation, multimodal image/audio/video understanding, chat, embeddings, code generation, JSON output, function calling, cached context, file search, grounding with Google Search, and fine-tuned models.

category
ai_ml
endpoints
11
price
$0-$138
free tier
yes
  • large per-call ceiling
  • voice or calling workflow
  • untrusted web-data input
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

medium / 44

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
60
price
$0.01-$7.5
free tier
no
  • wide endpoint surface
  • financial data or wallet context
  • metered without free tier
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 / 44

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
60
price
$0.01-$7.5
free tier
no
  • wide endpoint surface
  • financial data or wallet context
  • 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

watch / 18

Birdeye Data

Pay-per-request DeFi market data, token analytics, and wallet intelligence across Solana and 15+ chains. Covers token prices, OHLCV charts, holder distribution, smart money flows, meme signals, trade history, and security scores without API keys.

category
finance
endpoints
46
price
$0
free tier
yes
  • financial data or wallet context
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.