Skip to main content
Any API. One threshold signature. Every chain. Molpha turns an HTTP API response into an attestation: a value fetched by independent nodes, agreed on, and signed once with a single aggregate Schnorr signature. The same attestation verifies on Solana, on EVM chains and on Starknet, and an AI agent, backend or smart contract can check it without trusting whoever delivered it.

AI agents

Connect an agent to Molpha over MCP in minutes.

Backends

Request and publish signed data with the TypeScript SDK.

Smart contracts

Verify an attestation on EVM, Solana or Starknet.
Molpha currently runs on Solana devnet with verifiers on EVM and Starknet testnets, and the contracts are pre-audit. Don’t secure real value with it yet. See Deployments.

​
How it works

1

Define a source

Describe the API call and the value to extract. Its sourceId is the hash of that config, so there is nothing to register. See Sources and feeds.
2

Request a round

Pay with a subscription or per request over x402. The gateway stamps the round and dispatches it.
3

Nodes sign once

A deterministically selected group of registered nodes fetches the API independently, agrees on one value, and produces one aggregate signature. See Rounds and attestations.
4

Verify anywhere

Submit the attestation to a Solana Feed account, or call verify() on EVM or Starknet. Verifiers re-derive the signer selection and check one signature against the node set they mirror.

​
Why it verifies everywhere

  • No chainId in the signed message. Every verifier checks the same bytes, so the same attestation is valid on every supported chain, with no bridge and no per-chain feed.
  • The signer set is signed. The bitmap of signers is part of the message and must fall inside the selection that verifiers re-derive themselves.
  • Stateless verification. EVM and Starknet verifiers hold only a mirror of the node keys. Everything else arrives in calldata.
  • Solana is the canonical chain. The node registry, deposits, subscriptions, rewards and Feed accounts live in the Molpha Solana program.

​
What you get

Verification proves who signed what. Freshness, replay protection and which sources you accept stay your application’s policy: see the consumer checklist.