AgentResolver

Free capability resolver plus x402 HTTP/MCP checks and tool-compatibility utilities for agents.

CommunityDegradedNo sign-inGlobalFreeRead-only

What it can do

What data it sees

Do you need an account

No: the server works without sign-in

Free capability resolver plus x402 HTTP/MCP checks and tool-compatibility utilities for agents.

How to connect

How to connect AgentResolver to Claude

The server address to paste into Claude settings:

https://agentresolver.vercel.app/mcp

Open Claude (claude.ai or the desktop app).
Go to Settings → Connectors.
Click Add custom connector.
Paste the server address copied below into Remote MCP server URL and click Add.
In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect AgentResolver to ChatGPT

The server address to paste into ChatGPT settings:

https://agentresolver.vercel.app/mcp

Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
Open Settings → Connectors and click Create.
Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect AgentResolver to Cursor

The server address to paste into Cursor settings:

https://agentresolver.vercel.app/mcp

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (33)

Raw names from tools/list. Only developers need these.

sponsorship_info	Free read-only information for tool/API/MCP providers about AgentResolver's explicitly labeled sponsorship pilot. Organic ranking remains independent; applying creates no purchase or financial commitment.
resolve	Free default discovery. Find ranked tools, APIs, MCP servers and machine services, with a prefilled paid live-evidence action when useful.
abi_encode	Paid $0.005 USDC on Base or Solana exact Ethereum ABI encoding from Solidity typed JSON values to calldata-ready hex.
abi_decode	Paid $0.005 USDC on Base or Solana exact Ethereum ABI decoding into JSON-safe typed values.
eip712_hash	Paid $0.005 USDC on Base or Solana exact EIP-712 typed-data digest for signing and verification workflows.
ens_namehash	Paid $0.01 USDC on Base or Solana ENSIP-15 normalization, exact ENS namehash and label hashes.
evm_address_checksum	Paid $0.003 USDC on Base or Solana exact EIP-55 address validation and checksum normalization.
keccak256	Paid $0.004 USDC on Base or Solana exact Ethereum keccak256 digest for UTF-8 text or hex bytes.
solidity_selector	Paid $0.01 USDC on Base or Solana exact 4-byte Solidity selector and full keccak256 signature hash.
evm_units	Paid $0.005 USDC on Base or Solana exact decimal/base-unit conversion with arbitrary token decimals.
x402_ping	Paid $0.001 USDC on Base or Solana no-body settlement canary for funded agents. Returns a timestamped pong only after successful x402 payment to verify wallet, facilitator, payment, and delivery end-to-end.
sha256	Paid $0.001 USDC on Base or Solana SHA-256 digest of bounded UTF-8 text.
sha512	Paid $0.001 USDC on Base or Solana SHA-512 digest of bounded UTF-8 text.
hmac_sha256	Paid $0.001 USDC on Base or Solana HMAC-SHA256 hex digest.
base64_encode	Paid $0.001 USDC on Base or Solana UTF-8 to Base64 encoding.
base64_decode	Paid $0.001 USDC on Base or Solana Base64 to UTF-8 decoding.
jwt_decode	Paid $0.001 USDC on Base or Solana non-verifying JWT header/payload decode.
json_normalize	Paid $0.001 USDC on Base or Solana canonical JSON normalization plus SHA-256 digest.
json_schema_validate	Paid $0.001 USDC on Base or Solana deterministic JSON Schema subset validation.
url_parse	Paid $0.001 USDC on Base or Solana absolute URL parser.
uuid_v4	Paid $0.001 USDC on Base or Solana UUID v4 generation, up to 20 IDs.
slugify	Paid $0.001 USDC on Base or Solana deterministic slug generation.
hash_encode	Paid $0.001 USDC on Base or Solana deterministic SHA-256, SHA-512, HMAC-SHA256, Base64 encode/decode, or non-verifying JWT decode. x402-aware MCP clients can authorize and settle inside this tool call.
payment_guard	Paid $0.001 USDC fail-closed payment authorization preflight. Use immediately before an autonomous agent signs a target x402 payment. Returns eligible/blocked, exact observed payment terms, reason codes, evidence receipt and stable fingerprints. The caller retains sole spending authority.
x402_payment_preflight	Paid $0.001 USDC on Base or Solana transaction-path gate for autonomous buyers. Returns eligible/blocked, exact target payment terms, fail-closed reason codes and verifiable evidence before caller authorization. AgentResolver never requests a private key, signs the target payment, or custodies/forwards target funds.
http_inspect	Paid $0.001 USDC on Base or Solana verify-before-pay endpoint safety check: payTo verification, quote price, network, asset, resource binding and x402 challenge compliance before an agent authorizes spend. POST probes require explicit caller opt-in because an unprotected endpoint could have side effects.
tool_contract	Paid $0.005 USDC on Base or Solana deterministic JSON-schema compatibility check between one tool output and the next tool input. Returns exact incompatibility reasons and conservative normalized mappings. x402-aware MCP clients can authorize and settle inside this tool call.
openapi_select	Paid $0.005 USDC on Base or Solana selection of the best operation from one public JSON OpenAPI spec for a stated goal. Returns a compact execution-ready contract. x402-aware MCP clients can authorize and settle inside this tool call.
mcp_preflight	Paid $0.001 USDC on Base or Solana live MCP endpoint preflight for reachability, compatibility, latency, server metadata and tool inventory. x402-aware MCP clients can authorize and settle inside this tool call.
agent_readiness	Paid $0.005 USDC on Base or Solana audit of a public website for agent discoverability and machine-readable integration signals. x402-aware MCP clients can authorize and settle inside this tool call.
provider_launch_check	Paid $0.05 USDC seller-side readiness and x402 contract verification before AgentResolver provider-network review.
verified_resolve	Paid $0.02 USDC on Base or Solana capability resolution plus up to two unpaid live verification probes across top MCP and x402/HTTP marketplace candidates. x402-aware MCP clients can authorize and settle inside this tool call.
batch_verified_resolve	Paid $0.05 USDC on Base or Solana batch live verification for 2–4 capability decisions using unpaid MCP and x402/HTTP evidence. x402-aware MCP clients can authorize and settle inside this tool call.