x402 merchant

agent402.tools

Developer tools API on Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon and Sei, paid per request with x402.

Endpoints4,845
Price per requestfrom $0.001
Outside payers · 7dn/a
Answer 4020 of 8

Overview

as of 2026-10-07

Seller wallet: 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Chains: BaseArbitrumAvalancheCeloMonadOptimismPolygonSei
Hosts: agent402.tools
Categories: Developer tools1,088Market data872Onchain data704Other577AI models416Web data296Media272Identity240Search144Agents124Security96Commerce16
First seen: 2026-10-05 · last seen 2026-10-07

What we observed

Payments unknownNo 402 answer2026-09-19Not claimed

See the readings

Endpoints

4,845 registered

https://agent402.tools/api/openapi-resolve-refs
Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstream tools see a self-contained spec. Resolves `#/components/...` (OpenAPI) and `#/definitions/...` (Swagger) JSON-pointer refs anywhere in th…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-resolve-refs
Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstream tools see a self-contained spec. Resolves `#/components/...` (OpenAPI) and `#/definitions/...` (Swagger) JSON-pointer refs anywhere in th…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-resolve-refs
Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstream tools see a self-contained spec. Resolves `#/components/...` (OpenAPI) and `#/definitions/...` (Swagger) JSON-pointer refs anywhere in th…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-search
Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, ta…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-security-summary
Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the do…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-to-curl
Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, inc…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/openapi-validate-payload
Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` …
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
SeiMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
AvalancheMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
MonadMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
ArbitrumMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
OptimismMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
PolygonMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-summary
A one-call options market summary for a currency: index price, DVOL, call and put open interest with the put/call ratio, total open interest, 24h volume, a per-expiry breakdown, the most active instruments and the perp'…
CeloMarket data
n/a/ request
2026-09-30
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
AvalancheMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
SeiMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
MonadMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
PolygonMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
CeloMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
OptimismMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-ticker
One options instrument live: mark, last, bid and ask with sizes, index price, open interest, mark, bid and ask implied volatility and the full greeks (delta, gamma, vega, theta, rho). Use it when an agent holds or is qu…
ArbitrumMarket data
n/a/ request
2026-10-06
https://agent402.tools/api/options-volume
Onchain options protocols ranked by 24h notional volume with 7d and 30d volume, 1d and 7d change and the chains each runs on, plus sector totals. Use it when an agent is comparing decentralized options venues or trackin…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/options-volume
Onchain options protocols ranked by 24h notional volume with 7d and 30d volume, 1d and 7d change and the chains each runs on, plus sector totals. Use it when an agent is comparing decentralized options venues or trackin…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/options-volume
Onchain options protocols ranked by 24h notional volume with 7d and 30d volume, 1d and 7d change and the chains each runs on, plus sector totals. Use it when an agent is comparing decentralized options venues or trackin…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/options-volume
Onchain options protocols ranked by 24h notional volume with 7d and 30d volume, 1d and 7d change and the chains each runs on, plus sector totals. Use it when an agent is comparing decentralized options venues or trackin…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/options-volume
Onchain options protocols ranked by 24h notional volume with 7d and 30d volume, 1d and 7d change and the chains each runs on, plus sector totals. Use it when an agent is comparing decentralized options venues or trackin…
AvalancheOnchain data
n/a/ request
2026-09-30

Evidence

as of 2026-10-07

Answers HTTP 402

0 of 8

0 of 8 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-09-19

x402-style payments, last 7 days (Base)

unknown

unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)

window ended 2026-10-07

By chain

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	603	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
Arbitrum	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Avalanche	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Celo	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Monad	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Optimism	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Polygon	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Sei	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest

$0.001

per request, as registeredas of 2026-10-07

Highest

$2.00

per request, as registeredas of 2026-10-07

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0xabf4fa…e2a9d0 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.